0.1.0 - ci-build
WHOICHIToSNOMED, published by Vadim Peretokin (Peretokin Consulting). This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/vadi2/snomed-procedure-ichi/ and changes regularly. See the Directory of published versions
| Official URL: https://vadimperetok.in/fhir/who-ichi-to-snomed/ConceptMap/SnomedProceduresToIchiRelated | Version: 0.1.0 | ||||
| Draft as of 2026-05-11 | Computable Name: SnomedProceduresToIchiRelated | ||||
Copyright/Legal: First-pass draft. Mappings are provided as-is, without warranty of any kind. Users must independently verify correctness before use. SNOMED CT is © SNOMED International. ICHI is © World Health Organization. |
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WARNING - FIRST-PASS, UNVALIDATED MAPPING. Subset of SnomedProceduresToIchi containing only mappings with equivalence relatedto. It has not been clinically reviewed, terminology-reviewed, or otherwise verified for correctness. Do not use for patient care, billing, statistics, or any production purpose without independent expert review.
Language: en
Mapping from SNOMED CT Procedure (descendants of 71388002) to http://id.who.int/ichi
Group 1 Mapping from SNOMED CT (all versions) to http://id.who.int/ichi (Ichi)
| Source Code | Relationship | Target Code | Comment |
| 425934009 (Cardioverter defibrillator procedure) | is related to | HFC.DN.AF (Percutaneous transluminal implantation of permanent endocardial pacemaker or defibrillator system) | The SNOMED concept is a generic grouper covering all cardioverter defibrillator procedures (implantation, removal, replacement, management, function check), while ICHI has no single code for all defibrillator procedures. HFC.DN.AF represents the most commonly performed ICD procedure (percutaneous implantation) but is both narrower (specifies implantation via percutaneous transluminal approach only) and wider (includes pacemaker systems), making the relationship "relatedto" rather than a directional subsumption. |
| 119266004 (Coagulation) | is related to | LZZ.GA.AH (Destruction of skin and subcutaneous cell tissue, not elsewhere classified) | ICHI has no site-agnostic coagulation or destruction code; all destruction (GA) codes are body-site-specific. LZZ.GA.AH is the broadest available destruction intervention code, targeting skin/subcutaneous tissue. The SNOMED concept describes a specific destruction method (coagulation) applicable at any site, while the ICHI code covers all destruction methods but only at the integumentary system. |
| 51241000 (Control of hemorrhage) | is related to | IZE.LA.AA (Occlusion of blood vessel, not elsewhere classified) | ICHI lacks a general, site-unspecified "control of hemorrhage" code; all ICHI hemostasis codes are organ-specific. IZE.LA.AA is the closest non-site-specific code in the circulatory system chapter, but it describes only one technique (vessel occlusion) whereas the SNOMED concept encompasses any method of hemorrhage control at any body site, making the match related but not equivalent or hierarchically aligned. |
| 47700006 (Correction of lymphedema) | is related to | DFO.MK.AA (Repair of lymphatic vessels) | "Correction of lymphedema" is defined by the condition being treated and encompasses multiple possible surgical techniques (anastomosis, reconstruction, debulking, vessel repair), whereas DFO.MK.AA specifically addresses repair of lymphatic vessels. The concepts are clinically related — repairing lymphatic vessels is a primary means of correcting lymphedema — but they differ in framing (condition-based vs. anatomy/action-based) and scope, making them related but not directly equivalent. |
| 416376001 (Laser procedure) | is related to | PZA.SC.AH (Whole body phototherapy) | ICHI has no generic "laser procedure" code; laser is encoded as a means qualifier across various specific interventions rather than as a standalone category. PZA.SC.AH (Whole body phototherapy) is the closest general light-based therapeutic intervention in ICHI, but it covers only phototherapy (broad-spectrum light stimulation) rather than the full range of laser procedures (destruction, excision, ablation, coagulation), making these concepts related but not semantically equivalent. |
| 286572006 (Activation of implant) | is related to | PZA.SN.AH (Management of pharmacotherapy internal device) | ICHI has no generic "activation of implant" code; all management-of-internal-device codes (action type SN) are body-site-specific or device-type-specific. PZA.SN.AH is the closest generic management code under unspecified topography, but it is limited to pharmacotherapy devices and covers broader management activities rather than specifically activation, making the relationship "relatedto" rather than a direct equivalence. |
| 14734007 (Administrative procedure) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI lacks a direct "administrative procedure" category. PZB.ZZ.ZZ is the unspecified residual code for health management encounters on the whole person, which is the closest conceptual area to the broad SNOMED concept. However, "health management encounter" and "administrative procedure" differ in framing (encounter vs. procedure) and scope, warranting a "relatedto" equivalence. |
| 223490009 (Appliance procedures) | is related to | UA1.SM.ZZ (Management of products and technology, unspecified) | SNOMED's "Appliance procedures" is a broad grouper covering all procedure types (fitting, adjusting, removing) on any medical appliance, while ICHI's UA1.SM.ZZ covers only the management action on products and technology generally. The concepts overlap but differ in breadth of action types and framing (ICHI treats this as an environmental intervention rather than a clinical procedure). |
| 710955000 (Biomedical equipment procedure) | is related to | UA1.SM.ZZ (Management of products and technology, unspecified) | ICHI has no direct equivalent for biomedical equipment procedures. UA1.SM.ZZ covers management of products and technology in general, which partially overlaps but differs: the ICHI code is broader in scope (all products and technology, not specifically biomedical equipment) and narrower in action type (only "management" rather than any procedure type such as calibration, testing, or servicing). |
| 59524001 (Blood bank procedure) | is related to | DIA.JH.AF (Collection of blood or blood products) | "Blood bank procedure" encompasses a broad range of blood banking activities (collection, typing, crossmatching, processing, storage, and issuing), whereas DIA.JH.AF specifically covers the collection of blood or blood products — the most central blood bank activity but only one component. No single ICHI code captures the entirety of blood bank operations. |
| 389067005 (Community health procedure) | is related to | UBC.RG.ZZ (Providing services in relation to the population) | The SNOMED concept covers any health procedure performed at the community level, while the ICHI code covers providing services directed at the population. They share the population/community-level focus but differ in scope: SNOMED is specifically about health procedures in community settings, whereas the ICHI code addresses service provision to the population more broadly. |
| 10226009 (Disposal of radioactive source) | is related to | UBR.VL.ZZ (Environmental remediation in relation to radiation) | ICHI has no specific code for disposal of a radioactive source. UBR.VL.ZZ covers environmental remediation activities related to radiation, which conceptually encompasses radioactive source disposal, but it is framed as a broader public health environmental intervention rather than the specific clinical act of disposing of a discrete radioactive source. |
| 225299006 (Equipment-related procedure) | is related to | UA1.ZZ.ZZ (Other and unspecified interventions targeting unspecified products and technology) | The SNOMED concept is a broad grouper for any procedure involving equipment or devices, spanning body-system device interventions and assistive product procedures. ICHI has no single code that unifies all equipment-related health interventions; UA1.ZZ.ZZ is the closest residual category but does not capture body-system device procedures (e.g., implantation, removal of internal devices) that fall under the SNOMED concept. |
| 773262000 (Galvanism) | is related to | LZZ.SC.BP (Iontophoresis) | Galvanism refers to the general therapeutic application of direct (galvanic) current to the body, while iontophoresis is a specific technique that uses galvanic current to deliver medications transdermally. ICHI lacks a general "galvanic current therapy" code; iontophoresis is the most closely related code as it is fundamentally based on galvanic current, but its specific focus on drug delivery makes it a related concept rather than a true narrower match. |
| 7922000 (General treatment) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | SNOMED "General treatment" is a broad, non-specific therapeutic concept, while ICHI PZB.ZZ.ZZ is the most generic residual code for an unspecified health intervention on the whole person. Both capture non-specific health interventions, but they differ in framing: SNOMED emphasizes "treatment" (therapeutic action) while ICHI frames it as a "health management encounter." |
| 386637004 (Obstetric procedure) | is related to | NUE (Functions related to pregnancy) | ICHI does not have a single code for "obstetric procedure" as a unified concept. Obstetric interventions are dispersed across multiple ICHI blocks covering the uterus (NME), placenta/amnion/cord (NMM), fetal structures (NMR), pregnancy functions (NUE), and childbirth functions (NUG). NUE is selected as the best available related code because pregnancy is the defining condition of obstetric care, but it covers only functional pregnancy interventions and does not encompass structural obstetric procedures (e.g., caesarean section, forceps delivery). |
| 722492002 (Postoperative procedure) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI lacks a dedicated concept for postoperative procedures or postoperative care as a phase of treatment. PZB.ZY.ZY is a residual "other health management encounter" category which is the closest available code but is not specific to the post-surgical context. Both concepts refer to health management activities, but they differ fundamentally — SNOMED is defined by its temporal relationship to surgery, while the ICHI code is a generic residual category. |
| 423444004 (Procedure involving splint) | is related to | PZX.LC.AH (Application of cast or splint, not elsewhere classified) | The SNOMED concept covers any procedure involving a splint (application, removal, adjustment, at any body site), while PZX.LC.AH is specifically about the application of a cast or splint at an unspecified site. The mismatch is bidirectional: SNOMED is broader in procedure type (not just application) but narrower in device type (splint only, not cast), making this "relatedto." |
| 302325008 (Procedure on brain ventricular shunt) | is related to | AAE.SN.AA (Management of internal device of ventricles of brain) | The SNOMED concept is a broad grouper for any procedure on an existing brain ventricular shunt, while AAE.SN.AA specifically covers management of an internal device in the ventricles. The SNOMED concept is broader (encompassing replacement, removal, revision beyond management), making this related rather than a simple wider/narrower relationship. |
| 442460002 (Procedure on wound) | is related to | LZZ.ZZ.ZZ (Interventions on the integumentary system, unspecified) | "Procedure on wound" covers any intervention on a wound at any body site, while LZZ.ZZ.ZZ is the ICHI residual code for unspecified interventions on the integumentary system. The concepts overlap substantially since wounds are predominantly integumentary, but the SNOMED concept is wound-specific across all body systems, whereas the ICHI code covers all unspecified integumentary interventions. |
| 440626008 (Procedure related to breastfeeding) | is related to | VEH.ZY.ZY (Other interventions targeting breastfeeding, not elsewhere classified) | The SNOMED concept is a high-level grouper for any procedure related to breastfeeding. ICHI splits breastfeeding interventions across VEH (breastfeeding behaviours) and NUH (lactation physiology). VEH.ZY.ZY is the residual/catch-all code for breastfeeding interventions not otherwise classified, making it the best single code, though the relationship is "relatedto" because the SNOMED concept spans both behavioural and clinical domains that ICHI separates into distinct hierarchies. |
| 429060002 (Procedure to meet occupational requirement) | is related to | SU2.AA.ZZ (Assessment of engaging in work and employment, not elsewhere classified) | The SNOMED concept covers any procedure performed to satisfy an occupational requirement, which most commonly takes the form of an assessment. SU2.AA.ZZ covers assessments related to work and employment engagement, but the SNOMED concept is broader in scope (encompassing any procedure type, not only assessments) and more specific in purpose (meeting a requirement rather than general work engagement). |
| 225214000 (Procedures relating to control, restraint, seclusion and segregation) | is related to | UBC.WB.ZZ (Restricting movement of people) | The SNOMED concept describes clinical/psychiatric procedures for physically controlling, restraining, secluding, or segregating patients (typically in mental health or acute care settings). ICHI lacks a specific code for individual-level clinical restraint or seclusion interventions; UBC.WB.ZZ captures the broad concept of restricting people's movement but is classified under population-level environmental interventions rather than individual clinical care. |
| 241026003 (Procedures to drains) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI classifies drain procedures by body site and action (e.g., KMA.JB.AA drainage, KMA.DN.AA implantation, KMA.SN.AH management of peritoneal drains) with no site-unspecified drain procedure code. PZB.ZY.ZY is the residual health management code; the semantic gap is large since the SNOMED concept encompasses specific clinical interventions on drain devices across all body systems. |
| 225424005 (Protection procedure) | is related to | PZB.VE.ZZ (Isolation of a person for infection control) | SNOMED "Protection procedure" is a broad, high-level concept encompassing all types of clinical protective interventions (skin protection, infection prevention, fall prevention, protective positioning, etc.). ICHI has no single equivalent general "protection" category; PZB.VE.ZZ represents one specific type of protection procedure (infection control isolation) and is the most clinically relevant match but covers only a narrow subset. |
| 84755001 (Radiation therapy treatment management) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI lacks a specific code for radiation therapy treatment management (the supervisory/oversight activity of managing a radiotherapy course). The closest available code is the residual health management encounter category, which captures the management encounter concept but loses all specificity about radiation therapy. |
| 243120004 (Regimes and therapies) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | "Regimes and therapies" is an abstract grouper covering all therapeutic regimes and treatment plans, while PZB.ZZ.ZZ is the broadest unspecified health management intervention in ICHI. They are related in that both refer generically to health management activities, but they differ in granularity and semantics — SNOMED describes a class of treatment approaches, while ICHI describes a single unspecified encounter. |
| 42691000 (Soak) | is related to | PZA.ZZ.BS (Hydrotherapy with full immersion, for therapeutic purposes) | SNOMED "Soak" is a generic procedure of immersing a body part or whole body in liquid for therapeutic benefit, without specifying body site or modality. ICHI PZA.ZZ.BS specifically refers to full-body hydrotherapy immersion, making it the closest available match but not semantically equivalent since "Soak" is site-unspecified and simpler in scope than structured hydrotherapy. |
| 410606002 (Social service procedure) | is related to | UEO (Interventions on general social support services, systems and policies) | The ICHI block UEO covers all intervention types on general social support services, systems and policies, which is the closest match to the broad SNOMED concept. However, ICHI's UEO is framed around population-level interventions on services/systems/policies as environmental factors, whereas the SNOMED concept encompasses individual-level social service procedures delivered to patients as well. |
| 389084004 (Staff related procedure) | is related to | UEP.VA.ZZ (Capacity building targeting health services, systems and policies) | SNOMED's "Staff related procedure" is a broad administrative grouper for any procedure concerning healthcare staff. ICHI has no direct equivalent because it classifies interventions by target rather than by performer role. UEP.VA.ZZ is the closest match as capacity building within health services inherently involves staff-related activities, but it covers only one dimension and extends beyond staff to broader systemic and policy concerns. |
| 879912005 (Stem cell mobilization) | is related to | DIA.JH.AF (Collection of blood or blood products) | Stem cell mobilization is the pharmacological stimulation (typically with G-CSF) that drives haematopoietic stem cells from bone marrow into peripheral blood for collection. ICHI lacks a specific mobilization code; DIA.JH.AF covers the closely related collection step within the same clinical workflow but represents a different phase of the process rather than the mobilization itself. |
| 35587007 (Supervision, handling and loading of radioelement) | is related to | PZA.GA.BA (Total body irradiation) | ICHI does not contain a specific code for the preparatory handling, supervision, and loading of radioelements. The closest available code is PZA.GA.BA (Total body irradiation), which represents a radiotherapy delivery procedure. The SNOMED concept describes the upstream procedural step of managing the radioactive material, a distinction that ICHI does not capture. |
| 169410004 (Support transfusion therapy) | is related to | DIA.DG.AF (Transfusion of blood or blood products) | "Support transfusion therapy" refers to the broader supportive management and oversight of transfusion therapy as part of a treatment regimen, while DIA.DG.AF specifically denotes the act of transfusing blood or blood products. The ICHI code captures the core procedural intervention but does not encompass the supportive/management aspect implied by the SNOMED concept. |
| 274071003 (Surgical diathermy) | is related to | LZZ.GA.AH (Destruction of skin and subcutaneous cell tissue, not elsewhere classified) | Surgical diathermy is a specific electrosurgical destruction technique applicable at any body site. ICHI has no site-agnostic destruction code; LZZ.GA.AH is the broadest available destruction intervention code but is restricted to skin/subcutaneous tissue and does not capture the diathermy technique specifically. |
| 241730005 (Tourniquet procedure) | is related to | IZE.LA.AA (Occlusion of blood vessel, not elsewhere classified) | A tourniquet procedure achieves temporary external occlusion of blood vessels, which is functionally related to the ICHI concept of blood vessel occlusion. However, the ICHI code encompasses all methods of vascular occlusion (including surgical and endovascular) without specifying the external/temporary nature of a tourniquet, and ICHI lacks a specific code for tourniquet application. |
| 387750002 (Instrumental activity of daily living procedures and interventions) | is related to | SN1 (Domestic life, unspecified) | ICHI's "Domestic life" domain (SN1) covers the core IADL areas — acquisition of necessities (shopping), household tasks (meal preparation, housework), and caring for household objects — which correspond closely to the SNOMED concept of instrumental ADL procedures. However, some classic IADLs such as managing finances and transportation fall under separate ICHI blocks (economic life, mobility), and ICHI structures these as activity/participation domains rather than as a unified "IADL" grouping, making this a related but not fully equivalent match. |
| 307948001 (Application procedure) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | SNOMED "Application procedure" (FSN: "Application procedure (administrative)") is an administrative concept under "Administrative procedure," covering activities such as applying for funding, charitable grants, and passports — not clinical substance application. ICHI has no specific code for administrative application/form-filling procedures; PZB.ZY.ZY is the residual health management encounter code, which is the closest available container for administrative health-related activities. |
| 1304130007 (Attachment of identification band to extremity) | is related to | PZX.DP.AH (Installation of assistive product to body site, not elsewhere classified) | ICHI has no specific code for identification band attachment. PZX.DP.AH covers installation of a product to a body site in a catch-all category, which structurally parallels the SNOMED concept (placing an external item on the body), but an identification band is an administrative/safety device rather than an "assistive product" in the ICHI sense. |
| 165323002 (Biopsy administration) | is related to | PZX.AH.XH (Specimen collection of tissue) | "Biopsy administration" in SNOMED CT refers to the administrative/management aspects of a biopsy procedure, while ICHI classifies clinical interventions rather than administrative activities. PZX.AH.XH ("Specimen collection of tissue") is the closest generic ICHI code related to tissue biopsy at an unspecified site, but it represents the clinical act of collecting a tissue specimen rather than the administrative coordination. |
| 63150002 (Body claimed by anatomic board) | is related to | PZA.TH.ZZ (Post mortem care) | "Body claimed by anatomic board" is an administrative/legal procedure for transferring custody of a deceased body to an anatomic board for educational or research purposes, while ICHI's "Post mortem care" covers whole-body interventions after death. Both relate to post-mortem body handling, but the SNOMED concept is a specific administrative action with no direct clinical equivalent in ICHI. |
| 27218000 (Care of patient valuables) | is related to | UAO.RB.ZZ (Practical support in relation to assets) | UAO.RB.ZZ covers practical support related to assets (tangible property/possessions) which conceptually encompasses caring for patient valuables, but ICHI's "assets" is a broader environmental/social concept not specific to custodial safekeeping of personal belongings during healthcare encounters. |
| 310417005 (Certification procedure) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI has no specific code for certification procedures (issuing medical certificates or health attestations). PZB.ZY.ZY is a residual category for health management encounters not elsewhere classified, which is the closest available container for this concept, but it is far broader and non-specific compared to the distinct clinical-administrative act of certification. |
| 107727007 (Chart related administrative procedure) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI does not have a specific code for chart or medical records administrative procedures, as these clerical/administrative tasks fall outside ICHI's scope of health interventions. PZB.ZY.ZY is the closest residual category under "Interventions on whole person" for health management encounters not elsewhere classified. |
| 363087005 (Disability administrative procedure) | is related to | UEN.RB.ZZ (Practical support about social security services, systems and policies) | ICHI lacks a specific code for disability administrative procedures. UEN.RB.ZZ covers practical support within social security services, which is the closest domain match, but it is broader (covering all social security, not just disability) and framed as "practical support" rather than a specific administrative procedure. |
| 15807005 (Financial audit) | is related to | UEM.AA.ZZ (Assessment of economic services, systems and policies) | ICHI does not contain a specific code for financial auditing. UEM.AA.ZZ covers assessment of economic services and policies within a public health context, but a financial audit is a specific administrative procedure reviewing financial records for accuracy and compliance, which is semantically distinct from broad public health assessment of economic systems. |
| 386306006 (Financial resource assistance) | is related to | SVG.RB.ZZ (Practical support with engaging in economic self-sufficiency) | "Financial resource assistance" in SNOMED refers to helping patients access or manage financial resources. ICHI's SVG.RB.ZZ is the closest match, as economic self-sufficiency in the ICF framework encompasses having adequate financial resources; however, the SNOMED concept specifically targets financial resources whereas the ICHI code frames the intervention around achieving economic self-sufficiency more broadly. |
| 386309004 (Fiscal resource management) | is related to | UEM.TB.ZZ (Planning in relation to economic services, systems and policies) | "Fiscal resource management" involves managing financial resources (budgeting, allocation, cost control), while UEM.TB.ZZ covers planning within economic services, systems, and policies. Both address economic/financial planning at an organizational level, but ICHI is broader in domain (all economic services/systems/policies) while the action type "planning" is only one aspect of the broader "management" in the SNOMED concept. |
| 394867009 (Health administration) | is related to | UEP (Health services, systems and policies) | The SNOMED concept "Health administration" refers to the administrative and managerial aspects of health services, while the ICHI block UEP covers the broader domain of interventions on health services, systems, and policies at a population level. The concepts are semantically related but ICHI frames this as population-level environmental interventions rather than an administrative function, and UEP also encompasses policy-making, infrastructure development, and other dimensions beyond administration. |
| 223458004 (Informing) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | ICHI has no generic informing intervention code; all advising (PN) and education (PM) codes require a specific body-system target. PZB.PP.ZZ is the closest whole-person-level information exchange code, but counselling implies interactive guidance rather than one-way information provision. |
| 223474009 (Liaising with) | is related to | UCK.TD.ZZ (Collaboration relating to support from health professionals) | "Liaising with" in SNOMED CT is a broad, unqualified concept describing communicating and coordinating with any party, while UCK.TD.ZZ specifically captures collaboration relating to health professional support. The ICHI code shares the core semantic of interprofessional collaboration but is more constrained in scope by specifying health professionals and the support relationship context. |
| 308557000 (Meetings and conferences) | is related to | PZB.TD.ZZ (Case coordination) | "Meetings and conferences" in SNOMED CT is a broad administrative concept encompassing clinical meetings, case conferences, multidisciplinary team meetings, and professional conferences, while ICHI's "Case coordination" specifically covers the collaborative coordination of an individual's care. The concepts overlap but are not hierarchically related. |
| 185087000 (Notifications) | is related to | UEP.VF.ZZ (Alert for health services and systems) | The SNOMED concept "Notifications" refers to the clinical/administrative act of sending notifications (typically disease or public health notifications from healthcare providers). ICHI has no direct "notification" concept, but UEP.VF.ZZ captures the closest related action — issuing alerts within the health services context — though it is framed as a public health environmental intervention rather than a clinical administrative procedure. |
| 34491000087101 (Offering of donor solid organ for transplant to subject) | is related to | PZB.TD.ZZ (Case coordination) | The SNOMED concept describes the administrative act of offering a donor solid organ to a transplant recipient, which is a care coordination activity within the transplant process. ICHI has no specific code for organ offering or allocation; PZB.TD.ZZ covers the coordination of health services for a patient but is far broader and not transplant-specific. |
| 86078004 (Quality of care procedure) | is related to | UEP.AA.ZZ (Assessment of health services, systems and policies) | SNOMED's "Quality of care procedure" is a broad umbrella concept covering all procedures related to healthcare quality (audits, quality improvement, governance, accreditation), while UEP.AA.ZZ specifically addresses assessment of health services, systems and policies — capturing one core dimension of quality of care but framed at a population health systems level and not encompassing the full range of quality improvement and management activities. |
| 307782001 (Registration procedure) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI does not contain a specific code for patient registration or administrative enrollment procedures. PZB.ZY.ZY is the residual "other" category for health management encounters not elsewhere classified, which is the closest available code since registration is a type of health service encounter, but the semantic match is weak. |
| 308539001 (Request procedure) | is related to | UEP.TI.ZZ (Referral to health provider) | "Request procedure" is a broad administrative concept covering the act of requesting any clinical procedure, while UEP.TI.ZZ specifically covers referring to a health provider. Both involve initiating a request for health services, but they differ in scope — SNOMED's concept encompasses all procedure requests (orders, requisitions) while the ICHI code is limited to provider referrals. |
| 308364004 (Research administrative procedure) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI does not contain any codes specifically for research administration, clinical trials, or investigational procedures. PZB.ZY.ZY is the residual "other health management encounter" category, which is the closest available container but represents a fundamentally different concept — a generic catch-all for unclassified health encounters rather than a research administrative activity. |
| 225314003 (Risk management) | is related to | VC1.AA.ZZ (Assessment of safety-related behaviours, unspecified) | SNOMED's "Risk management" encompasses the full clinical process of identifying, assessing, and mitigating health-related risks. VC1.AA.ZZ addresses the safety assessment component within ICHI's behavioural intervention framework, but covers only the assessment aspect of risk (not the full management cycle) and focuses on safety-related behaviours rather than clinical risk management broadly. |
| 417753008 (Shared electronic record administration) | is related to | UEP.TK.ZZ (Public facilities or infrastructure development in relation to health services, systems and policies) | ICHI lacks a specific code for electronic health record administration. UEP.TK.ZZ covers health service infrastructure development, which is the closest conceptual match since a shared electronic record system is a type of health service infrastructure, but the SNOMED concept addresses ongoing administration while the ICHI code broadly covers all public facility and infrastructure development. |
| 241727003 (Induced hypotension) | is related to | IZZ.ZY.ZY (Other specified interventions on the circulatory system) | ICHI lacks a specific code for induced/deliberate hypotension as a therapeutic procedure. The blood pressure functions section (ITA) contains only diagnostic and assessment codes. IZZ.ZY.ZY is the most appropriate residual code as induced hypotension is a circulatory system intervention not elsewhere classified, but the match is only tangentially related given the extreme breadth of this residual category. |
| 241728008 (Induced vasodilatation) | is related to | IZZ.ZY.ZY (Other specified interventions on the circulatory system) | ICHI has no specific code for pharmacologically or therapeutically induced vasodilatation. IZZ.ZY.ZY is the designated residual code for specified circulatory system interventions not classified elsewhere, acknowledging the intervention exists within the circulatory system domain but not capturing the specific nature of induced vasodilatation. |
| 442944005 (Induction of amnesia) | is related to | PZA.DC.AF (Intravenous anaesthesia) | ICHI has no specific code for induction of amnesia. Intravenous anaesthesia (PZA.DC.AF) is the most related code because amnesia induction is typically achieved via IV amnestic/anaesthetic agents and amnesia is a recognized component of anaesthesia. However, anaesthesia is a fundamentally different and broader intervention encompassing unconsciousness, analgesia, and muscle relaxation. |
| 17424007 (Intracarotid amobarbital test) | is related to | AUH.AC.ZZ (Test of higher-level cognitive functions) | The Wada test involves injecting barbiturate into the carotid artery to assess cerebral hemispheric lateralization of language and memory. AUH.AC.ZZ captures the functional domain being assessed (higher-level cognitive functions) but not the distinctive invasive pharmacological method, making the concepts related but not directly equivalent. |
| 414641005 (Maintenance of spontaneous respiration) | is related to | JTB.AI.ZZ (Monitoring of respiration function) | ICHI has no direct code for "maintaining spontaneous respiration." JTB.AI.ZZ (Monitoring of respiration function) is the closest specific intervention as continuous monitoring is a core clinical component of maintaining spontaneous breathing, but the SNOMED concept is broader — it also implies active supportive measures to preserve the patient's own breathing. |
| 127584007 (Adjustment of stabilizing device) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | ICHI lacks a specific code for "adjustment" of an external stabilizing device. PZX.KB.AH is the closest non-site-specific code addressing intervention on external immobilisation devices, but its action (replacement/change) differs semantically from adjustment (modification/tuning of the same device), and "immobilisation device" is narrower than the broader "stabilizing device." |
| 239659000 (Adjustment of traction system) | is related to | MBZ.LC.AE (Direct or skeletal traction to the spine) | ICHI has no code for adjusting an existing traction system. MBZ.LC.AE represents a traction intervention in the musculoskeletal domain, but it describes the initial application of traction rather than adjustment of an existing system, and it is specific to the spine whereas the SNOMED concept is body-site agnostic. |
| 440101003 (Application of halo device for maxillofacial fixation) | is related to | MAF.KB.AH (Replacement of external immobilisation device to maxilla) | MAF.KB.AH is the only ICHI code that specifically addresses an external immobilisation device applied to the maxilla, aligning with the halo device for maxillofacial fixation. However, the ICHI code describes "replacement" of the device rather than initial "application," making this a related but not equivalent match. |
| 225689007 (Applying dark glasses) | is related to | BZZ.DK.AH (Dressing of eye) | "Applying dark glasses" is a protective light-filtering intervention for the eyes, while "Dressing of eye" refers to applying an external covering to the eye. Both involve placing a protective external item over the eye area, but they differ in purpose (light protection vs. wound/surgical dressing). No ICHI code specifically addresses applying spectacles or light-protective eyewear. |
| 265611001 (Attention to penile prosthesis) | is related to | NGM.KA.AA (Replacement of internal penile prosthesis) | ICHI has no management-of-internal-device code for the penis (NGM.SN.AA does not exist). NGM.KA.AA is the closest penile prosthesis intervention code involving an existing device, but it specifically covers replacement rather than the broader attention/management concept which also includes checking, adjusting, and maintaining the prosthesis. |
| 180300007 (Attention to plaster cast) | is related to | PZX.LC.AH (Application of cast or splint, not elsewhere classified) | ICHI lacks a specific code for ongoing care or maintenance of a plaster cast. PZX.LC.AH is the only ICHI code that explicitly references casts/splints, but it denotes the act of applying a cast rather than the broader concept of attending to or managing an existing one. |
| 385695003 (Cast care) | is related to | PZX.LC.AH (Application of cast or splint, not elsewhere classified) | ICHI has no direct code for ongoing cast care or cast management. PZX.LC.AH is the only ICHI code that specifically references casts and splints, but it covers the application (initial placement) of a cast rather than the ongoing care, monitoring, and maintenance that "Cast care" describes. |
| 228604003 (Checking of splint) | is related to | PZX.AA.AH (Assessment of body part, not elsewhere classified) | ICHI lacks a specific code for checking/assessing a splint or external immobilisation device. PZX.AA.AH is the closest available match because checking a splint clinically involves assessing the splinted body part (skin integrity, circulation, fit), but the ICHI code targets the body part itself rather than the device, making this a related but not directly equivalent concept. |
| 397951009 (Endobronchial tube fixation) | is related to | JBA.DL.AC (Insertion of endotracheal tube) | ICHI has no specific code for fixation/securing of an airway tube. JBA.DL.AC covers insertion of an endotracheal tube, which is related but represents a different step in airway management; tube fixation (securing the tube in position) is a distinct post-insertion procedure. |
| 448642000 (Fitting of contact lens) | is related to | BBB.DK.AH (Application of bandage contact lens to cornea) | Both concepts involve application of a contact lens to the eye, but the ICHI code specifically refers to a therapeutic bandage contact lens applied to the cornea, whereas the SNOMED concept refers to fitting a corrective contact lens for vision correction. ICHI lacks a dedicated code for corrective contact lens fitting. |
| 827135004 (Insertion of orthodontic anchoring screw) | is related to | KAE.DN.AC (Prosthetic dental implant) | Both procedures involve inserting a screw/fixture into alveolar jaw bone in a dental context, but KAE.DN.AC refers specifically to a prosthetic implant intended to support a replacement tooth, whereas an orthodontic anchoring screw is a temporary anchorage device for orthodontic tooth movement. The target anatomy and surgical technique overlap substantially, but the clinical purpose and device permanence differ. |
| 385699009 (Maintenance of immobilizer) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | ICHI lacks a direct "maintenance" action for external immobilisation devices. PZX.KB.AH targets the same entity (an external immobilisation device at an unspecified site) but its action is "replacement" rather than the broader "maintenance," which encompasses checking, adjusting, caring for, and replacing the device. |
| 18157004 (Orthotic procedure) | is related to | PZX.DP.AH (Installation of assistive product to body site, not elsewhere classified) | SNOMED's "Orthotic procedure" is a broad concept covering any procedure involving an orthosis (fitting, adjustment, assessment, management, removal) at any body site. PZX.DP.AH represents installation of an external assistive product to an unspecified body site, but it is narrower in action (installation only) and broader in device type (any assistive product, not exclusively orthoses), making the relationship "relatedto." |
| 53110002 (Removal of knee immobilizer) | is related to | MMJ.LC.AH (Application of external immobilisation device to the knee) | ICHI has no specific code for removal of an external immobilisation device from the knee. MMJ.LC.AH identifies the exact body site (knee) and device type (external immobilisation device), but describes application rather than removal. Alternative candidates capture the removal action but use a broader device concept and less specific body region, making this the strongest semantic match despite the action mismatch. |
| 384724009 (Replacement of appliance) | is related to | PZX.KA.AE (Percutaneous replacement of device, not elsewhere classified) | The SNOMED concept is a generic, site- and approach-unspecified procedure for replacing any medical appliance. ICHI has no single code matching this breadth; PZX.KA.AE is the closest as a site-unspecified device replacement residual category, but it is constrained to percutaneous approach and excludes appliances covered by more specific ICHI codes, making it related but not semantically equivalent or a simple wider/narrower relationship. |
| 24177002 (Replacement of contact lens) | is related to | BBB.DK.AH (Application of bandage contact lens to cornea) | BBB.DK.AH is the only ICHI code involving a contact lens, but it refers specifically to a therapeutic bandage contact lens for healing/protection, whereas the SNOMED concept refers to replacing a corrective vision contact lens. The target anatomy (cornea) overlaps and both involve contact lenses, but the clinical purpose and lens type differ significantly. |
| 429184008 (Securing endotracheal tube using holder) | is related to | JBA.DL.AC (Insertion of endotracheal tube) | ICHI has no specific code for securing or stabilizing an endotracheal tube with a holder device. JBA.DL.AC is the most closely related intervention, as securing the tube is a component step performed during or after intubation, but the SNOMED concept describes only the securing/fixation sub-activity rather than the full insertion procedure. |
| 445519000 (Securing of medical device tubing) | is related to | PZA.SN.AH (Management of pharmacotherapy internal device) | ICHI lacks a specific code for securing medical device tubing. PZA.SN.AH is the closest general-purpose internal device management code at a whole-body level, but it is restricted to pharmacotherapy devices whereas the SNOMED concept applies to any medical device tubing. The action of "securing" is a specific subtype of device management. |
| 10442004 (Splint maintenance) | is related to | PZX.LC.AH (Application of cast or splint, not elsewhere classified) | ICHI has no specific code for splint maintenance or management of external immobilisation devices at an unspecified body site. PZX.LC.AH is the only ICHI code that explicitly mentions "splint" and addresses the same domain, but it covers application (initial placement) rather than ongoing maintenance (checking, adjusting, repairing), making the relationship "relatedto." |
| 398265002 (Tracheal tube fixation) | is related to | PTC.SN.AC (Management of tracheostomy) | ICHI has no specific code for tracheal tube fixation/securing. PTC.SN.AC covers ongoing management of a tracheal airway device, which would include tube fixation as one component. However, the relationship is "relatedto" because PTC.SN.AC is both broader (management encompasses more than fixation) and narrower (specific to tracheostomy rather than any tracheal tube). |
| 118479001 (Wedging of cast) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | Wedging of a cast is a specific modification/adjustment technique where a cast is partially cut and a wedge inserted to correct fracture angulation, whereas this ICHI code covers full replacement of an external immobilisation device. ICHI lacks a dedicated code for cast modification or adjustment, making this the closest available match though the concepts are related rather than equivalent. |
| 68938006 (Blood bank inventory control) | is related to | DIA.JH.AF (Collection of blood or blood products) | ICHI does not have a specific code for blood bank inventory control as an administrative/logistical activity. DIA.JH.AF represents one component of blood bank operations, but inventory control encompasses broader supply chain management (stock tracking, expiration monitoring, distribution) that goes beyond collection. |
| 63400002 (Blood donor accounting, clerical) | is related to | DIA.JH.AF (Collection of blood or blood products) | ICHI has no code for the clerical or administrative record-keeping aspects of blood donation. DIA.JH.AF covers the clinical collection of blood, which is part of the same blood donation workflow but addresses the clinical intervention rather than the administrative accounting and clerical activities. |
| 22370005 (Blood donor rejection, clerical) | is related to | DIA.JH.AF (Collection of blood or blood products) | Blood donor rejection is an administrative step within blood banking. ICHI has no code for administrative blood bank procedures or donor eligibility determination. DIA.JH.AF is the closest code in the blood domain but describes the collection act rather than the donor rejection decision. |
| 104088002 (Blood Product Unit Description) | is related to | DIA.JH.AF (Collection of blood or blood products) | Describing and characterizing blood product units is an administrative quality step in blood banking. ICHI has no code for blood product characterization; DIA.JH.AF covers the blood collection workflow, the closest procedural context, but does not address product description. |
| 64108007 (Blood unit processing) | is related to | DIA.JH.AF (Collection of blood or blood products) | ICHI has no specific code for blood unit processing (the post-collection preparation of blood components). DIA.JH.AF is the most closely related code, as collection and processing are sequential steps in the blood supply chain, but they represent distinct activities — collection refers to procurement while processing refers to separation and preparation of components. |
| 104081008 (Reservation of blood product) | is related to | DIA.DG.AF (Transfusion of blood or blood products) | ICHI has no code for the administrative act of reserving or allocating blood products. DIA.DG.AF is the most closely related code, as blood product reservation is a preparatory step in the transfusion workflow, but one is an administrative/logistical action and the other is the clinical procedure itself. |
| 104078003 (Measurement of volume of blood product dispensed) | is related to | DTA.AB.ZZ (Measurement of haematological system functions) | Both involve measurement within the haematological domain, but the SNOMED concept specifically measures the physical volume of a dispensed blood product (an administrative/laboratory activity), while the ICHI code covers measurement of haematological system functions (physiological parameters). No ICHI code directly represents measuring the volume of dispensed blood products. |
| 104079006 (Determination of disposition of blood product) | is related to | DIA.DG.AF (Transfusion of blood or blood products) | ICHI has no code for determining the disposition or fate of a blood product. DIA.DG.AF is the most closely related code, as disposition determination is an administrative step typically performed within the blood transfusion workflow, but the SNOMED concept covers the decision/tracking process rather than the act of transfusion itself. |
| 104082001 (Measurement of duration of transfusion) | is related to | DIA.DG.AF (Transfusion of blood or blood products) | ICHI has no code for measuring the duration of a transfusion. DIA.DG.AF represents the transfusion procedure itself, which is the context in which duration measurement occurs, but it does not capture the specific measurement/timing activity. The concepts are related but semantically distinct. |
| 104083006 (Measurement of volume of blood product transfused) | is related to | DIA.DG.AF (Transfusion of blood or blood products) | ICHI does not have a specific code for measuring the volume of transfused blood products. DIA.DG.AF is the most closely related code, as the measurement of transfused volume is an activity inherently associated with the blood transfusion intervention, but the SNOMED concept specifically describes a measurement/quantification activity rather than the transfusion procedure itself. |
| 108257001 (Anatomic pathology procedure) | is related to | PZX.AH.XH (Specimen collection of tissue) | Anatomic pathology encompasses gross examination, histopathology, immunohistochemistry, and cytopathology of tissue specimens. PZX.AH.XH covers only the specimen collection step, not the analytical examination. ICHI has no assignable intervention code for the analytical examination of tissue. |
| 45211000 (Catheterization) | is related to | IZE.DL.AF (Percutaneous transluminal insertion of device into blood vessel, not elsewhere classified) | SNOMED's "Catheterization" is a maximally generic concept covering catheter insertion into any body site (vascular, urinary, cardiac, etc.). ICHI has no single equivalent generic catheterization code; IZE.DL.AF is the broadest vascular device insertion code available and represents the most prototypical form of catheterization, but it is limited to blood vessels, making this a "relatedto" relationship. |
| 287698001 (Fixed-rate cardiac pacemaker) | is related to | HFC.DN.AF (Percutaneous transluminal implantation of permanent endocardial pacemaker or defibrillator system) | The SNOMED concept specifies a fixed-rate (asynchronous) pacemaker procedure without specifying surgical approach, while the ICHI code covers the most common implantation approach but does not distinguish pacemaker pacing mode and also includes defibrillator systems. They differ on orthogonal classification axes (device mode vs. surgical approach). |
| 703073006 (Fluoroscopy guided cardiac pacemaker procedure) | is related to | HFC.DN.AF (Percutaneous transluminal implantation of permanent endocardial pacemaker or defibrillator system) | The SNOMED concept describes a general fluoroscopy-guided cardiac pacemaker procedure without specifying procedure type (insertion, implantation, removal, management). HFC.DN.AF covers the most common clinical scenario (percutaneous pacemaker implantation, routinely performed under fluoroscopy), but lacks the fluoroscopic guidance qualifier. In ICHI, fluoroscopic guidance would be captured via extension code XG2RR6. |
| 307280005 (Implantation of cardiac pacemaker) | is related to | HFC.DN.AF (Percutaneous transluminal implantation of permanent endocardial pacemaker or defibrillator system) | HFC.DN.AF represents the most common clinical approach to cardiac pacemaker implantation (transvenous/endocardial). However, the ICHI code is both wider (includes defibrillator systems) and narrower (specifies percutaneous transluminal endocardial approach, whereas the SNOMED concept covers all approaches including epicardial). |
| 233169004 (Automatic defibrillator procedure) | is related to | HFC.DN.AF (Percutaneous transluminal implantation of permanent endocardial pacemaker or defibrillator system) | The SNOMED concept is a broad grouper covering all procedure types (implantation, management, removal, replacement, function check) involving an automatic defibrillator. HFC.DN.AF is the most clinically common realization (transvenous ICD implantation), but it is wider in that it also covers pacemaker systems and narrower in that it is limited to percutaneous transluminal implantation. |
| 110461004 (Adjunctive care) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | "Adjunctive care" is an abstract concept describing any supplementary intervention given alongside primary treatment, whereas PZB.ZY.ZY is a residual ICHI code for whole-person health management encounters that do not fit elsewhere. They are related in that both cover non-specific health interventions, but the SNOMED concept is a care-type qualifier rather than a classifiable intervention. |
| 11285004 (Diagnostic block anesthesia) | is related to | ACA.DC.AE (Injection of anaesthetic into peripheral nerve) | The SNOMED concept describes a nerve block for diagnostic purposes at an unspecified site, while the ICHI code captures the same technique but is limited to peripheral nerves and does not distinguish diagnostic from therapeutic intent. They overlap on the core action but differ on purpose and anatomical scope. |
| 1153547001 (Promotion of activity therapy) | is related to | VEB.PM.ZZ (Education to influence physical activity behaviours) | "Promotion of activity therapy" refers to promoting the use of activity-based therapeutic interventions (a clinical/rehabilitative modality), while VEB.PM.ZZ covers education aimed at influencing physical activity behaviours as a lifestyle factor. Both involve encouraging increased physical activity for health benefit, but they differ in clinical vs. behavioural framing. |
| 1153548006 (Promotion of cognitive therapy) | is related to | AUH.PM.ZZ (Education about higher-level cognitive functions) | "Promotion of cognitive therapy" involves advocating cognitive therapy as a treatment approach. ICHI has no direct "promotion of therapy" concept; AUH.PM.ZZ is the closest match as it targets the same cognitive domain, but the SNOMED concept focuses on promoting uptake of a therapy modality while the ICHI code focuses on educating patients about cognitive functions themselves. |
| 1156505006 (External beam radiation therapy using carbon ions) | is related to | PZA.GA.BA (Total body irradiation) | ICHI does not have any code that captures the specific radiation modality (carbon ion / particle beam). All ICHI radiotherapy codes use generic means code BA and are differentiated only by body site. PZA.GA.BA is the only radiotherapy code not restricted to a specific organ, but it denotes whole-body irradiation rather than a modality-defined intervention at an unspecified site. |
| 116148004 (Molecular genetics procedure) | is related to | PYA (Genome target) | ICHI lacks a specific category for molecular genetics procedures as a class. PYA represents the genome as a target for interventions, which is conceptually related but differs in nature — SNOMED describes a broad category of laboratory/analytical procedures while PYA represents the biological target rather than the procedures themselves. |
| 1163377005 (Breast milk feeding management) | is related to | VEH.RB.ZZ (Practical support with breastfeeding behaviours) | "Breast milk feeding management" encompasses full clinical management (assessment, planning, education, and hands-on support), whereas VEH.RB.ZZ specifically addresses only the practical support dimension of breastfeeding behaviours. The concepts are related but differ in scope. |
| 1172579004 (Vaginal laser therapy) | is related to | NMH.GA.AC (Destruction of lesion of vagina) | ICHI has no specific code for laser therapy or phototherapy applied to the vagina. NMH.GA.AC is the closest vaginal intervention involving an energy-based modality, but it specifically denotes destruction of a lesion, whereas vaginal laser therapy is a broader therapeutic procedure often used for mucosal regeneration without necessarily targeting a discrete lesion. |
| 1186936003 (Specimen storage) | is related to | PZX.AH.ZZ (Specimen collection, not elsewhere classified) | ICHI does not contain any code for specimen storage, preservation, or biobanking. The closest code shares the specimen-handling domain but represents a different activity (collection vs. storage). They are distinct sequential steps in specimen management. |
| 1290259006 (Coagulation of lesion of middle ear) | is related to | CBA.JI.AC (Local excision of lesion of middle ear, not elsewhere classified) | ICHI has no destruction (GA) code for the middle ear; CBA.JI.AC is the only code targeting a lesion of the middle ear, but it describes local excision rather than coagulation/destruction, making the action type different while the anatomical target and clinical intent are shared. |
| 73223003 (Electrocoagulation) | is related to | LZZ.GA.AH (Destruction of skin and subcutaneous cell tissue, not elsewhere classified) | Electrocoagulation is a site-independent electrosurgical destruction technique. ICHI has no site-agnostic destruction code and does not differentiate destruction by modality (electrical, thermal, chemical). LZZ.GA.AH is the broadest available destruction code but is restricted to skin/subcutaneous tissue. |
| 64879003 (Photocoagulation) | is related to | LZZ.GA.AH (Destruction of skin and subcutaneous cell tissue, not elsewhere classified) | Photocoagulation is tissue destruction using focused light energy, most commonly applied to the retina (BCC.GA.AA) or skin. ICHI has no site-agnostic destruction code and does not differentiate destruction by energy source. LZZ.GA.AH is the broadest available destruction code but is restricted to skin/subcutaneous tissue. |
| 386242000 (Communicable disease management) | is related to | PZB.VC.ZZ (Infectious disease contact tracing) | ICHI has no single code for the broad concept of communicable disease management. PZB.VC.ZZ is the closest individual-level code directly addressing infectious/communicable disease interventions, but it covers only contact tracing within the much broader scope of communicable disease management. |
| 386244004 (Community disaster preparedness) | is related to | UEI.TB.ZZ (Planning in relation to civil protection services, systems and policies, not elsewhere classified) | Civil protection services encompass disaster preparedness and emergency management, and "planning" aligns with preparedness. However, the ICHI code addresses civil protection services broadly, while the SNOMED concept specifically targets community-level disaster preparedness. |
| 385760007 (Community special services education) | is related to | SXB.PM.ZZ (Education about engaging in community life) | The SNOMED concept refers to education provided through community special services, while the ICHI code covers education about engaging in community life. Both share the core themes of community and education, but differ in delivery mechanism vs. subject matter. |
| 424565002 (Public health investigation) | is related to | UBC.VC.ZZ (Population public health surveillance) | Public health investigation is a targeted, reactive inquiry into specific health threats, while population public health surveillance is a broader, systematic, ongoing monitoring activity. They are related activities within the public health domain but differ in scope and intent. |
| 119561005 (Grafting procedure) | is related to | BlockL2-XG7 (Tissue grafts) | SNOMED's "Grafting procedure" is a generic, body-site-independent concept. ICHI has no single intervention code for generic grafting; it distributes graft procedures across site-specific codes using the "Reconstruction" (ML) action type. The "Tissue grafts" extension code block is the closest conceptual match but is a descriptor rather than a standalone intervention. |
| 1202017008 (Surgical procedure using flap) | is related to | BlockL2-XG1 (Tissue flaps) | ICHI does not have a single intervention code for the general concept of "surgical procedure using flap." The closest match is the extension code block "Tissue flaps," which groups flap technique qualifiers (local flap, free flap, pedicle flap). The SNOMED concept describes a procedure while the ICHI block describes a technique modifier. |
| 122459003 (Dissection procedure) | is related to | MRS.FB.AA (Division of soft tissue of unspecified site) | SNOMED "Dissection procedure" (definition: "separation of different structures along natural cleavage lines by dividing the connective tissue framework") is conceptually distinct from ICHI's "Division" (FB action = transecting/cutting through a structure). Dissection separates tissue planes; division cuts through structures. Additionally, the SNOMED concept is body-site-agnostic (30 children spanning nerves, vessels, intracranial, plantar, etc.) while MRS.FB.AA is scoped to musculoskeletal soft tissue. |
| 1230192007 (Preparation of physical therapy equipment) | is related to | UA1.SM.ZZ (Management of products and technology, unspecified) | ICHI has no specific code for preparing physical therapy equipment. UA1.SM.ZZ covers management of products and technology in general, which conceptually encompasses equipment preparation but is far broader in scope. The SNOMED concept describes a narrow operational activity outside the core clinical intervention focus of ICHI. |
| 1230228006 (Maintenance of isolation room) | is related to | PZB.VE.ZZ (Isolation of a person for infection control) | Both concepts address isolation for infection control, but the SNOMED concept specifically describes maintenance of the physical isolation room environment, while the ICHI code describes isolating a person. They differ in focus — facility/environment vs. person. |
| 1255917009 (Maternal perinatal care) | is related to | NUE.AI.ZZ (Monitoring of functions related to pregnancy) | "Maternal perinatal care" encompasses the entire perinatal period (late pregnancy, labour, postpartum). NUE.AI.ZZ captures only monitoring of pregnancy-related functions — narrower in both action type (monitoring only) and time scope (pregnancy only, not full perinatal period). |
| 386527002 (Control of antepartum hemorrhage) | is related to | NME.DK.AC (Tamponade of uterus) | ICHI lacks a general "control of antepartum haemorrhage" code. NME.DK.AC is the most closely related intervention targeting the correct anatomical site, but it specifies one technique (tamponade) whereas the SNOMED concept encompasses any method of controlling antepartum bleeding. |
| 735346000 (Control of hemorrhage by application of direct pressure) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | ICHI lacks a general-purpose "control of hemorrhage by direct pressure" code; all hemorrhage control codes are site-specific. LZZ.DK.AH covers application of dressing/pressure to an unspecified external site, but describes dressing application broadly rather than hemorrhage control specifically. |
| 70659002 (Control of hemorrhage following vascular surgery) | is related to | IZE.LA.AA (Occlusion of blood vessel, not elsewhere classified) | ICHI has no specific code for postoperative hemorrhage control on blood vessels. IZE.LA.AA targets the correct anatomical structure and action mechanism (occlusion), but does not specifically denote hemorrhage control or a postoperative context. |
| 40366003 (Control of hemorrhage from anus) | is related to | KBW.LA.AA (Control of bleeding of rectum) | ICHI has no specific code for control of bleeding of the anus; KBW.LA.AA covers the same intervention type (hemorrhage control) but targets the rectum rather than the anus, which are distinct anatomical sites in ICHI (KBW vs KBX blocks). |
| 35061002 (Control of hemorrhage of laparotomy site) | is related to | PAL.JD.AA (Incision of haematoma of recent laparotomy site) | ICHI lacks a specific code for control of hemorrhage of the laparotomy site. PAL.JD.AA targets the same anatomical site and addresses a hemorrhagic complication, but the intervention action differs -- incision of a haematoma versus control of active hemorrhage. |
| 41947004 (Control of hemorrhage of pleural cavity) | is related to | JCB.JB.AA (Drainage of pleural cavity) | ICHI lacks a specific hemostasis code for the pleural cavity. Drainage of the pleural cavity is the primary procedure for hemothorax management, but it describes a drainage action rather than hemorrhage control specifically. |
| 386220001 (Control of wound hemorrhage) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | ICHI does not have a general "control of wound hemorrhage" code. LZZ.DK.AH is the most closely related available code in the integumentary system chapter, as wound dressing is a primary method of wound hemorrhage control, but it represents only one technique rather than the broader concept. |
| 172982005 (Hemostasis of pharynx) | is related to | KAR.GA.AA (Destruction of lesion or tissue of oral pharynx) | ICHI lacks a specific haemostasis code for the pharynx. KAR.GA.AA encompasses cauterization techniques used for hemostasis, but the concepts differ: hemostasis targets bleeding control across the entire pharynx, while the ICHI code addresses destruction of lesions/tissue limited to the oral pharynx. |
| 236869008 (Hemostasis of vaginal vault) | is related to | NMH.DK.AC (Tamponade of vagina) | ICHI lacks a general haemostasis code for the vagina or vaginal vault. Tamponade of vagina represents one specific technique for achieving hemostasis, but the SNOMED concept encompasses any hemostasis method applied specifically to the vaginal vault. |
| 372034000 (Implementation of hemostasis techniques) | is related to | IZE.LA.AA (Occlusion of blood vessel, not elsewhere classified) | The SNOMED concept describes general implementation of hemostasis techniques without specifying body site or method. ICHI has no general-purpose hemostasis code; IZE.LA.AA is the most generic available code using the LA (Occlusion) action but is narrower in method and restricted to vessels. |
| 182605004 (Packing for hemorrhage) | is related to | NMF.LA.AC (Packing of cervical canal for control of bleeding) | ICHI has no generic, non-site-specific code for packing to control hemorrhage. NMF.LA.AC is the only ICHI packing code that explicitly addresses bleeding control, but it is restricted to the cervical canal whereas the SNOMED concept is body-site-agnostic. |
| 274508002 (Postoperative hemorrhage control) | is related to | IZE.LA.AA (Occlusion of blood vessel, not elsewhere classified) | ICHI does not have a generic "postoperative hemorrhage control" code; all hemorrhage control codes are site-specific. IZE.LA.AA is the closest non-site-specific vascular intervention using the LA (hemostasis) action, but it describes a specific mechanism rather than the broader clinical concept. |
| 237015004 (Surgical control of postpartum hemorrhage) | is related to | NME.MK.AA (Repair of uterus) | ICHI lacks a specific "control of haemorrhage of uterus" code. NME.MK.AA encompasses surgical techniques used in postpartum hemorrhage management (e.g., compression sutures), but is broader (all uterine repairs) and the SNOMED concept is broader in technique scope. |
| 445417000 (Decongestive lymphatic therapy) | is related to | DFZ.JB.AH (External drainage of lymphatic structure, not elsewhere classified) | Decongestive lymphatic therapy is a multicomponent conservative program (manual lymphatic drainage, compression, exercises, skin care). DFZ.JB.AH targets the lymphatic system with external drainage, aligning with the primary goal of CDT, but the SNOMED concept encompasses a broader therapeutic program. |
| 64587006 (Emergency endodontic procedure) | is related to | KAE.ML.AC (Root canal therapy) | "Emergency endodontic procedure" covers any urgent intervention on the dental pulp (root canal, pulpotomy, pulpectomy, apicoectomy) and carries an emergency qualifier that ICHI does not represent. KAE.ML.AC is the most representative endodontic procedure but is narrower in procedural scope and lacks the emergency dimension, making the relationship "relatedto." |
| 183452005 (Emergency hospital admission) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI classifies health interventions rather than administrative encounter events like hospital admissions. PZB.ZZ.ZZ is the closest available concept as an unspecified health management encounter, but it lacks the specificity of "emergency" and "admission" and is a residual/unspecified category. |
| 710352006 (Extrication procedure) | is related to | PZB.TJ.ZZ (Transporting person) | ICHI has no code for extrication (freeing a trapped person from wreckage or a collapsed structure). PZB.TJ.ZZ is the most conceptually adjacent code as both involve physically moving a person in a health-related context, but transporting does not capture the core meaning of disentangling someone from entrapment. |
| 386308007 (First aid) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI does not contain a specific code for "first aid" as a general concept. PZB.ZY.ZY is a residual category for health management encounters not elsewhere classified, which is the closest match for the broad, non-specific nature of first aid encompassing multiple possible interventions. |
| 386405009 (Rape trauma treatment) | is related to | VBC.PP.ZZ (Counselling about community violence behaviours) | ICHI has no specific code for rape trauma treatment or sexual assault victim care. VBC.PP.ZZ is the most relevant match as rape is a form of community violence and counselling is the closest therapeutic action type, but it addresses violence-related behaviours broadly rather than specifically treating psychological trauma in sexual assault survivors. |
| 278417005 (Control of room temperature) | is related to | UBE.TM.ZZ (Environment modification in relation to aspects of climate) | ICHI has no specific code for controlling indoor/room temperature in a clinical setting. UBE.TM.ZZ covers environment modification related to climate aspects, but is oriented toward population-level environmental climate interventions rather than individual patient room temperature management. |
| 386284008 (Environmental management: comfort) | is related to | UAL.TM.ZZ (Environment modification to aspects of buildings for private use) | The SNOMED concept is a clinical nursing intervention manipulating a patient's surroundings (temperature, lighting, noise, bedding) to promote comfort. UAL.TM.ZZ captures environment modification of physical space but is structurally broader and infrastructure-focused rather than comfort-specific. |
| 385873004 (Environmental safety management) | is related to | VC1.TM.ZZ (Environment modification to influence safety-related behaviours, unspecified) | The SNOMED concept refers to monitoring and manipulating the physical environment to promote safety. The ICHI code covers environment modification targeting safety-related behaviours, which overlaps but differs in framing — ICHI targets behavioural change while SNOMED targets direct physical environment safety management. |
| 61815001 (Protection of individual from surroundings) | is related to | PZB.VE.ZZ (Isolation of a person for infection control) | The SNOMED concept covers protection of a patient from all environmental threats (physical, chemical, biological), while the ICHI code is specifically limited to isolation for infection control purposes. Both involve separating/shielding a person from their surroundings, but the SNOMED concept is broader in scope and the ICHI code is narrower in purpose, making them related but not directly equivalent. |
| 449231008 (Ensuring use of infusion pump within safe parameters) | is related to | PZA.SN.AH (Management of pharmacotherapy internal device) | PZA.SN.AH covers management of pharmacotherapy devices, which includes infusion pumps as drug delivery devices. The match is relatedto because the SNOMED concept specifically addresses safety parameter verification of an infusion pump (which may be external), while the ICHI code covers general management of internal pharmacotherapy devices — differing in both activity scope and device type. |
| 363108004 (Equipment-related management procedure) | is related to | UA1.SM.ZZ (Management of products and technology, unspecified) | The SNOMED concept is a high-level grouper covering all equipment-related management procedures (internal devices, external devices, assistive products). ICHI has no single code spanning this entire scope; UA1.SM.ZZ is limited to the assistive product/environmental technology domain and does not encompass internal device management (covered by the separate SN action axis). |
| 225680006 (Hearing aid procedure) | is related to | PAB.DP.AH (Installation of assistive product to head or neck) | ICHI has no dedicated hearing aid procedure code. PAB.DP.AH captures the core action of fitting/installing a hearing aid (an assistive product) to the head region, but it is wider in scope (any assistive product to head or neck) while the SNOMED concept is broader in procedure type (covering fitting, management, adjustment, and checking). Neither fully subsumes the other. |
| 311781009 (Making ergonomic equipment) | is related to | UAH.SJ.ZZ (Manufacturing of products and technology for employment) | The SNOMED concept specifically refers to making ergonomic equipment, while the ICHI code covers manufacturing products and technology for employment more broadly. The ICHI code captures the correct action (manufacturing) and the most typical domain for ergonomic equipment (employment/workplace), but neither concept fully constrains to the other's scope. |
| 281171009 (Maxillofacial technical procedure) | is related to | MAB.ML.AA (Reconstruction of facial bone, not elsewhere classified) | The SNOMED concept is a very broad grouper covering all technical procedures of the maxillofacial region. ICHI splits this domain across many specific codes (facial bone, maxilla, mandible, teeth, palate). MAB.ML.AA is the most representative single code as reconstruction is the most characteristic maxillofacial intervention, but it covers only one procedure type in one subregion. |
| 282828000 (Recirculation of the dialysis machine) | is related to | NAA.JC.AF (Renal dialysis) | Recirculation of the dialysis machine describes a specific technical sub-step of the hemodialysis process (circulating fluid through the machine circuit during priming or rinse-back), not the full renal dialysis intervention itself. ICHI does not model equipment-level procedural steps, so NAA.JC.AF is the closest available code but represents the broader therapeutic intervention. |
| 429180004 (Reprogramming of neurostimulator device) | is related to | ABG.SN.AE (Management of internal device of spinal canal) | ICHI has no specific code for neurostimulator reprogramming. ABG.SN.AE is the closest match as it covers management of an internal device within the nervous system (spinal canal), which is the most common site for neurostimulator devices. However, the relationship is "relatedto" because the ICHI code is simultaneously broader in action scope (all device management, not just reprogramming) and narrower in anatomical scope (spinal canal only, whereas the SNOMED concept applies to neurostimulators in any body location including brain, peripheral nerves, and cranial nerves). |
| 439204007 (Extracorporeal shock wave therapy of musculoskeletal system) | is related to | MRS.SC.BJ (Extracorporeal shockwave therapy of soft tissue of unspecified site) | Both describe extracorporeal shockwave therapy within the musculoskeletal system, but the SNOMED concept covers all musculoskeletal structures (bone, joint, tendon, soft tissue) at any site, while the ICHI code is restricted to soft tissue only (though at unspecified site). Neither concept fully subsumes the other, so the relationship is "relatedto." |
| 29747000 (Evisceration of ocular contents with implant into scleral shell) | is related to | BZA.JK.AA (Enucleation of eyeball) | ICHI lacks a specific code for evisceration of ocular contents (removal of intraocular contents while preserving the scleral shell). Enucleation of eyeball (BZA.JK.AA) is the closest available code as both are radical eye removal procedures, but enucleation removes the entire eyeball whereas evisceration preserves the scleral shell and places an implant within it, making them related but not directly hierarchically equivalent procedures. |
| 15822000 (Ocular prosthetic service) | is related to | BZZ.SM.AH (Management of ocular prosthetics) | SNOMED "Ocular prosthetic service" (synonym: "Prescribing and fitting of ocular prosthesis") specifically covers prescribing and fitting of ocular prostheses, while ICHI's BZZ.SM.AH uses the "SM" action (Management of assistive product), which denotes ongoing care and maintenance rather than initial fitting (ICHI uses "DP" for installation/fitting). No separate ocular prosthesis fitting code (BZZ.DP.*) exists in ICHI, making BZZ.SM.AH the closest available code but with a different action semantics. |
| 128303001 (Surgical removal) | is related to | MRS.JJ.AA (Partial excision of soft tissue of unspecified site) | SNOMED "Surgical removal" is a completely generic excision concept at any site. ICHI has no site-agnostic or tissue-agnostic excision code; MRS.JJ.AA is the closest generic excision code, targeting soft tissue at an unspecified musculoskeletal site, but it specifies partial excision rather than the broader concept of any surgical removal. |
| 1295496001 (Plain X-ray of drain with contrast) | is related to | PZX.BA.BL (Image capture and analysis, not elsewhere classified) | ICHI has no specific code for contrast imaging of a drain (sinogram/tubogram). PZX.BA.BL is the residual NEC imaging intervention, significantly broader than the SNOMED concept as it covers all forms of imaging NEC rather than specifically plain radiography with contrast medium through a drain. |
| 1296900004 (Rhenium 188 brachytherapy) | is related to | LZZ.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue by radiotherapy, not elsewhere classified) | ICHI has no generic brachytherapy code or isotope-specific radiotherapy code; all ICHI radiotherapy codes are site-specific. Rhenium-188 brachytherapy is most commonly used for skin lesions, making this skin radiotherapy NEC code the most clinically relevant match, but the relationship is only relatedto due to differing axes of specificity. |
| 1297276008 (Breast milk feeding) | is related to | VEH.RB.ZZ (Practical support with breastfeeding behaviours) | The SNOMED concept describes the act of feeding an infant with breast milk, while the ICHI code represents a health intervention providing practical support for breastfeeding behaviours. ICHI does not have a code for the breastfeeding activity itself; VEH.RB.ZZ is the most closely related intervention code. |
| 1303531005 (Diathermy of lesion of perineum) | is related to | PAW.JI.AA (Local excision of lesion of perineum) | Diathermy is a thermal destruction technique, whereas PAW.JI.AA represents local excision — a fundamentally different surgical action. The anatomical target (lesion of perineum) matches correctly, but the action mismatch (destruction vs excision) means these are related rather than inexactly equivalent. ICHI has no "destruction of lesion of perineum" code. |
| 1304129002 (Preoperative verification of identity) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI has no specific code for preoperative identity verification or surgical safety checks. PZB.ZY.ZY is a residual catch-all category, only broadly related to this administrative patient safety activity. |
| 1335881006 (Laser procedure of mucous membrane) | is related to | LZZ.SC.AH (Phototherapy to skin and subcutaneous cell tissue, not elsewhere classified) | ICHI lacks a specific code for laser procedures on mucous membrane. LZZ.SC.AH captures light-based therapy but targets skin rather than mucous membrane, and "phototherapy" does not fully encompass the broader range of laser procedures (destruction, ablation, coagulation). |
| 133877004 (Therapeutic regimen) | is related to | PZB.TB.ZZ (Individualised planning) | "Therapeutic regimen" denotes a structured course of treatment, while "Individualised planning" captures the planning of health interventions. They are conceptually related but differ in scope: SNOMED implies therapeutic intent and execution, whereas ICHI covers all types of individualised health planning. |
| 870194003 (Body mass index follow-up planning) | is related to | KTN.AA.ZZ (Assessment of weight maintenance functions) | ICHI has no specific code for BMI follow-up planning. KTN.AA.ZZ is in the correct clinical domain (weight maintenance) but addresses assessment rather than follow-up planning; the SNOMED concept focuses on the planning activity for ongoing BMI monitoring, which is a related but semantically distinct intervention. |
| 406547006 (Urgent follow-up) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI has no specific code for follow-up encounters or urgency qualifiers. PZB.ZY.ZY is the residual category for health management encounters not captured elsewhere, but it loses both the follow-up semantics and the urgency qualifier, making the relationship only tangentially related. |
| 1371266008 (Social service non-presential interview) | is related to | UEO.AA.ZZ (Assessment of general social support services, systems and policies) | The SNOMED concept describes an individual-level non-face-to-face interview conducted by social services, whereas ICHI's UEO.AA.ZZ covers assessment at a services/systems/policies level rather than at the individual client level. ICHI lacks a specific code for an individual social service interview, and the remote modality would require an additional telehealth extension. |
| 868184008 (Telemedicine consultation with provider) | is related to | UCK.TD.ZZ (Collaboration relating to support from health professionals) | UCK.TD.ZZ captures the interprofessional collaboration aspect but does not encode the telemedicine delivery modality, which in ICHI would require the additional extension code XG6 (Telehealth). The ICHI code addresses collaboration broadly (any modality), while the SNOMED concept specifically denotes telemedicine-based consultation. |
| 185318008 (Third party encounter) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI classifies health interventions rather than encounter contexts or participant roles. "Third party encounter" describes who is present (a representative/carer rather than the patient), which has no direct ICHI equivalent. PZB.ZY.ZY is the closest residual code but the relationship is only tangentially related. |
| 274407009 (Intrauterine device check) | is related to | NME.AE.AC (Digital examination of uterus) | ICHI has no specific code for management or checking of an intrauterine device (no NME.SN.xx code exists). NME.AE.AC is the closest match as an IUD check typically involves physical examination of the uterus to assess device position and strings, but the ICHI code describes the examination method rather than the specific purpose of checking a device. |
| 440677001 (Laboratory procedure related to reproduction) | is related to | NUD.AA.ZZ (Assessment of functions related to fertility) | NUD.AA.ZZ is the closest ICHI category, covering assessment of fertility functions under the reproductive functions hierarchy. However, the SNOMED concept is broader (covering all laboratory procedures related to reproduction, not limited to fertility) while the ICHI code is broader in a different way (covering all assessment methods, not limited to laboratory procedures), making a "relatedto" equivalence most appropriate. |
| 448938001 (Preparation of smear) | is related to | PZX.AH.ZZ (Specimen collection, not elsewhere classified) | Preparation of a cytology smear is a pre-analytical laboratory step. ICHI has no code for smear preparation specifically; PZX.AH.ZZ covers specimen handling procedures at unspecified sites, the closest assignable code in the specimen workflow, but addresses collection rather than slide preparation. |
| 9265001 (Specimen processing) | is related to | PZX.AH.ZZ (Specimen collection, not elsewhere classified) | ICHI does not have a specific code for specimen processing (the pre-analytical laboratory steps of receiving, accessioning, fixing, and preparing specimens for analysis). PZX.AH.ZZ covers specimen collection, which is the most closely related intervention in the same clinical workflow, but it addresses the collection step rather than the downstream processing step. |
| 420729000 (Diode laser hyperthermia) | is related to | LZZ.SC.AH (Phototherapy to skin and subcutaneous cell tissue, not elsewhere classified) | Diode laser hyperthermia combines laser light delivery with therapeutic heating. ICHI has site-specific hyperthermia codes (AXA.SD.BQ for pain, BZZ.SD.BQ for eye) but none that are site-generic or laser-specific. LZZ.SC.AH captures the light-based therapeutic aspect at a broad integumentary site but uses the stimulation action (SC) rather than hyperthermia (SD). |
| 169426003 (Laser dental therapy) | is related to | KZZ.ZY.ZY (Other specified interventions on the digestive system) | ICHI has no specific code for laser therapy applied to dental structures. The teeth block (KAE) contains 17 named interventions, none involving laser or light-based therapy. KZZ.ZY.ZY is the residual "other specified" category for the digestive system (which includes teeth/mouth), making it the only available code that can accommodate this intervention, but it is far broader in scope. |
| 445907001 (Laser procedure on skin) | is related to | LZZ.SC.AH (Phototherapy to skin and subcutaneous cell tissue, not elsewhere classified) | ICHI does not classify interventions by specific energy modality (laser) but by action performed. LZZ.SC.AH covers therapeutic light/energy-based interventions on skin without site restriction, and laser is a primary phototherapy modality. However, the SNOMED concept encompasses all laser procedures on skin (including destructive uses), while the ICHI code covers all phototherapy (including non-laser light). |
| 394613000 (Gene therapy) | is related to | PYA (Genome target) | ICHI does not contain a specific code for gene therapy. The closest structural element is the "Interventions on genome" block (BlockL4-PYA), with PYA representing the genome as an intervention target. Gene therapy is a therapeutic intervention on the genome, but PYA denotes only the target rather than the specific therapeutic action. |
| 86553008 (Immunosuppressive therapy) | is related to | DTB.DB.AE (Percutaneous administration of immunological agent) | ICHI has no single code for "immunosuppressive therapy" regardless of route. DTB.DB.AE covers administration of immunological agents percutaneously, but it is both broader (covering all immunological agents, not just immunosuppressants) and narrower (specifying only the percutaneous route, whereas the SNOMED concept is route-agnostic), making the relationship "relatedto." |
| 309541009 (Metabolic therapy) | is related to | ETB.PG.ZZ (Assisting and leading for general metabolic functions) | ICHI lacks a direct "metabolic therapy" code. ETB.PG.ZZ is the closest therapeutic intervention targeting general metabolic functions, but its action type ("assisting and leading") represents only one modality of therapy, whereas "Metabolic therapy" encompasses all forms of therapeutic intervention aimed at metabolic processes. |
| 702386002 (Serotherapy) | is related to | DTB.DB.AE (Percutaneous administration of immunological agent) | Serotherapy (passive immunization with immune serum/antibodies) is related to percutaneous administration of an immunological agent, but they differ on two axes: serotherapy is route-agnostic while DTB.DB.AE specifies the percutaneous route, and serotherapy specifically involves serum-derived antibodies while DTB.DB.AE covers any immunological agent. |
| 386501002 (Acid-base balance regulation) | is related to | ETE (Water, mineral and electrolyte balance functions) | ICHI has no specific code for acid-base balance regulation. ETE is the closest conceptual match, as acid-base balance is physiologically intertwined with electrolyte and mineral balance. However, ETE covers a broader domain without explicitly mentioning acid-base, and is a target/function category rather than a therapeutic regulation intervention. |
| 266704000 (Fluid/electrolyte balance regulation) | is related to | ETE (Water, mineral and electrolyte balance functions) | ICHI code ETE represents the target domain that corresponds to the SNOMED concept's scope, but ICHI lacks a specific therapeutic/regulatory intervention code for actively managing fluid/electrolyte balance. The SNOMED concept describes a regulatory intervention, while ETE identifies the body function being targeted. |
| 134187008 (Child protection procedure) | is related to | VBB.ZZ.ZZ (Other and unspecified intervention targeting family and partner violence behaviours) | ICHI lacks a specific child protection code. VBB.ZZ.ZZ is the closest match as child protection procedures are most commonly related to family violence contexts (abuse, neglect), but the SNOMED concept is broader — encompassing all forms of child safeguarding including non-family settings and non-violence concerns — and is child-specific rather than addressing family and partner violence generally. |
| 1351524005 (Transportation of specimen) | is related to | PZX.AH.ZZ (Specimen collection, not elsewhere classified) | ICHI has no code for specimen transportation; it only covers specimen collection. PZX.AH.ZZ is the most closely related code as specimen collection and specimen transport are sequential steps in the same pre-analytical laboratory workflow, but they represent semantically distinct activities (collecting vs. moving a specimen). |
| 1431002 (Fixation) | is related to | MRB.LC.AH (Application of external immobilisation device to bone of unspecified site) | SNOMED "Fixation" is a generic stabilisation procedure for any structure. ICHI has fixation/stabilisation (LC) codes at specific body sites but no universal fixation code. MRB.LC.AH covers bone immobilisation at an unspecified site (the most common fixation context) but does not encompass soft tissue fixation, organ fixation, or internal fixation devices. |
| 165160008 (Diagnostic dye introduction) | is related to | PZA.DB.AE (Administering pharmacotherapy, percutaneous) | ICHI does not have a dedicated code for the introduction of diagnostic dye or contrast medium as a standalone procedure; contrast introduction is always embedded within specific imaging intervention codes. PZA.DB.AE is the closest generic code for percutaneous substance administration but refers to pharmacotherapy rather than diagnostic dye specifically. |
| 165162000 (Diagnostic dye to eye) | is related to | BAD.AC.AH (Dye disappearance test) | ICHI has no general "diagnostic dye to eye" code. BAD.AC.AH involves topical dye application to the eye for diagnostic purposes but is specifically a lacrimal apparatus drainage test rather than a general-purpose diagnostic dye procedure. |
| 169129004 (Dynamic non-imaging isotope study) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | ICHI has no code for non-imaging radioisotope functional studies. PZA.BA.BE is the most general radioisotope code but describes an imaging scan, whereas the SNOMED concept specifically refers to a dynamic non-imaging functional isotope study. They share the use of radioisotopes but differ in whether imaging is involved. |
| 169273006 (Diagnostic use of electricity) | is related to | PZX.AB.AH (Measurement of a body part, not elsewhere classified) | SNOMED concept is a broad grouper covering all diagnostic procedures using electricity (ECG, EEG, EMG, nerve conduction studies, etc.). ICHI has no equivalent umbrella code; each electrical diagnostic test is classified under its specific body system. PZX.AB.AH is the closest generic measurement residual code but covers all measurement types, not just electrical. |
| 64874008 (Chemodenervation) | is related to | ACA.GA.AE (Percutaneous destruction of peripheral nerve) | Chemodenervation specifically uses chemical agents to block nerve function and is not restricted to peripheral nerves, while ACA.GA.AE covers all methods of percutaneous nerve destruction but is limited to peripheral nerves. The concepts overlap significantly but differ on both the method axis (chemical vs. any percutaneous) and the anatomical axis (any nerve vs. peripheral nerve only). |
| 61761008 (Injection of phenol into nerve) | is related to | ACA.DB.AE (Injection into a peripheral nerve) | The SNOMED concept covers injection of phenol into any nerve (peripheral, central, or autonomic), while ACA.DB.AE is restricted to peripheral nerves. The mismatch is bidirectional: ICHI is wider in substance (any injection, not just phenol) but narrower in anatomy (peripheral nerves only, whereas SNOMED covers all nerves). |
| 228688003 (Californium 252 brachytherapy) | is related to | PZA.GA.BA (Total body irradiation) | ICHI does not have a site-unspecified brachytherapy code; "Brachytherapy seeds" exists only as an extension code without a standalone ICHI code. PZA.GA.BA is the only site-unspecified radiation therapy code in ICHI, but it refers to whole-body external beam irradiation rather than localized brachytherapy with a Californium-252 source. The concepts are related as both are radiation-based therapeutic interventions but differ in delivery method and scope. |
| 228677009 (Cesium 137 brachytherapy) | is related to | PZA.GA.BA (Total body irradiation) | ICHI does not have a code for brachytherapy as a standalone intervention or for Cs-137 specifically. ICHI classifies radiotherapy by body site, but the SNOMED concept specifies a radiotherapy technique/isotope without a body site. PZA.GA.BA is the only non-site-specific therapeutic radiation code in ICHI; both concepts involve therapeutic radiation delivery, but total body irradiation is fundamentally different from brachytherapy. |
| 24242005 (Cobalt-60 therapy) | is related to | PZA.GA.BA (Total body irradiation) | ICHI lacks a code for cobalt-60 radiation therapy specifically or for radiotherapy without a specified body site. PZA.GA.BA is the only non-site-specific radiation destruction code, sharing the same action (destruction by radiation) but differing semantically: Cobalt-60 therapy typically targets a specific tumour site using a cobalt-60 gamma ray source, whereas total body irradiation refers to irradiation of the entire body. |
| 228666003 (External beam radiation therapy with dual headed cobalt unit) | is related to | PZA.GA.BA (Total body irradiation) | ICHI does not have a site-unspecified external beam radiotherapy code or any codes distinguishing cobalt-60 sources or dual-headed units. All ICHI radiotherapy codes are site-specific. PZA.GA.BA is the only non-site-specific radiotherapy code, but it specifically means whole-body irradiation rather than an unspecified-site external beam modality. |
| 62867004 (External beam radiation therapy with radioactive cesium) | is related to | PZA.GA.BA (Total body irradiation) | ICHI does not have a generic "external beam radiotherapy" code or any codes that distinguish radiation source (cesium, cobalt, etc.). The SNOMED concept describes a radiation delivery modality without specifying a body site, while PZA.GA.BA describes irradiation of the whole body without specifying the source. Both involve therapeutic irradiation but characterize different axes of the procedure. |
| 228702008 (Gold 198 therapy) | is related to | EBA.GA.BE (Destruction of thyroid gland, using radioactive iodine) | Gold-198 therapy is a radionuclide therapy similar in concept to radioactive iodine therapy (both involve tissue destruction using a specific unsealed radioactive isotope), but ICHI has no code for Gold-198 specifically nor a site-unspecified radionuclide therapy. EBA.GA.BE is the only ICHI code representing destruction using a named radioactive substance, though it differs in both target organ and isotope. |
| 448467008 (Interstitial brachytherapy using cesium needle) | is related to | NMF.GA.BA (Destruction of lesion or tissue of cervix by radiotherapy) | ICHI lacks a site-unspecified brachytherapy or interstitial radiotherapy code; all radiotherapy codes (GA.BA) are site-specific. NMF.GA.BA is selected because interstitial cesium-137 needle brachytherapy is most classically associated with cervical cancer treatment. However, the SNOMED concept specifies only the method without constraining to a body site, while the ICHI code specifies the cervix but does not distinguish brachytherapy from other radiotherapy modalities. |
| 448552007 (Interstitial brachytherapy using gold grain) | is related to | NGA.GA.BA (Destruction of lesion or tissue of the prostate by radiotherapy) | ICHI has no site-unspecified brachytherapy code; all radiotherapy codes are site-specific. Gold grain (Au-198) interstitial brachytherapy is most classically associated with prostate cancer treatment, making NGA.GA.BA the most clinically relevant match. However, the SNOMED concept does not specify a body site and specifies a particular technique, while the ICHI code specifies a body site but covers all radiotherapy modalities. |
| 449157000 (Interstitial brachytherapy using iridium wire) | is related to | PZA.GA.BA (Total body irradiation) | ICHI lacks a generic or site-unspecified brachytherapy/interstitial radiotherapy code. All ICHI radiotherapy intervention codes are tied to specific body sites, while the SNOMED concept describes a radiotherapy delivery method without specifying a target site. PZA.GA.BA is the only radiotherapy intervention under comprehensive/unspecified topography, but represents total body irradiation rather than localized interstitial brachytherapy. |
| 228684001 (Iridium 192 brachytherapy) | is related to | PZA.GA.BA (Total body irradiation) | ICHI does not have a generic brachytherapy code or any isotope-specific radiation procedure code; all radiotherapy interventions are site-specific. PZA.GA.BA is the only non-site-specific radiation therapy code, but "total body irradiation" is clinically distinct from Ir-192 brachytherapy (localized internal radiation therapy). They share the radiation therapy domain but differ in intent, technique, and scope. |
| 363244004 (Nuclear medicine study by site) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | The SNOMED concept is a grouper/organizing concept for all nuclear medicine studies classified by anatomical site, while ICHI has no equivalent grouper. PZA.BA.BE is the closest match as it uses the same imaging modality at the broadest available topographic target, but it represents a specific whole-body procedure rather than an organizational parent concept encompassing all site-specific nuclear medicine studies. |
| 21372000 (Radium therapy) | is related to | PZA.GA.BA (Total body irradiation) | ICHI has no general "radiotherapy, unspecified site" code and no radium-specific concept. All ICHI radiotherapy codes (*.GA.BA) are site-specific except PZA.GA.BA (Total body irradiation), which is the closest non-site-restricted radiation therapy code. However, "Radium therapy" describes a radiation modality (using radium as the sealed source) applicable to any body site, while PZA.GA.BA refers specifically to whole-body irradiation -- making them related but semantically distinct concepts. |
| 228692005 (Radon 222 brachytherapy) | is related to | PZA.GA.BA (Total body irradiation) | ICHI does not have a standalone brachytherapy code or a site-unspecified radiotherapy code. The SNOMED concept describes a radiotherapy modality (brachytherapy using Radon-222) without specifying a body site. PZA.GA.BA is the only non-site-specific radiation therapy code in ICHI, but it refers to external beam whole-body irradiation rather than localized brachytherapy with a sealed radioactive source. The concepts are related only in that both involve therapeutic use of ionizing radiation. |
| 303860003 (Regional nuclear medicine) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | ICHI lacks a single grouping code for regional nuclear medicine; it instead has many site-specific nuclear imaging codes (e.g., kidney, breast, bone, joints). PZA.BA.BE is the closest general radioisotope scan code in ICHI, but it specifies "whole body" rather than a specific body region, making it related but not semantically equivalent to the SNOMED concept which groups nuclear medicine procedures applied to particular body regions. |
| 228667007 (Stereotactic cobalt external beam radiation therapy) | is related to | AAA.GA.BA (Destruction of lesion or tissue of brain by radiotherapy) | Stereotactic cobalt external beam radiation therapy (e.g., Gamma Knife) is predominantly used for intracranial targets, making AAA.GA.BA the closest clinical match. However, the SNOMED concept defines a radiation modality/technique without specifying a body site, while the ICHI code specifies the target (brain) but not the radiation technique, so neither subsumes the other. |
| 228694006 (Strontium 90 brachytherapy) | is related to | LZZ.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue by radiotherapy, not elsewhere classified) | ICHI has no body-site-independent brachytherapy or radiation modality code. Strontium-90 brachytherapy is a superficial contact/plaque radiation technique most commonly applied to surface structures (eye surface, skin). LZZ.GA.BA is the broadest residual radiotherapy code for superficial tissue destruction, making it the closest available concept, though it specifies skin as the target while the SNOMED concept is modality-specific and site-independent. |
| 228673008 (Strontium 90 electron external beam radiation therapy) | is related to | LZZ.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue by radiotherapy, not elsewhere classified) | The SNOMED concept specifies the radiation modality (Strontium-90 electron beam) without constraining the body site, while the ICHI code specifies the target tissue (skin and subcutaneous tissue) without constraining the radiation modality. Strontium-90 electron beam therapy is characteristically used for superficial skin lesions, making this the most clinically relevant ICHI code, but the two concepts overlap rather than one subsuming the other. |
| 228695007 (Tantalum 182 brachytherapy) | is related to | PZA.GA.BA (Total body irradiation) | ICHI lacks a general brachytherapy code or a site-unspecified radiotherapy code. All ICHI radiotherapy codes are site-specific, and "Brachytherapy seeds" exists only as an uncodable device extension. PZA.GA.BA is the most general therapeutic radiation code in ICHI and shares the therapeutic radiation domain, but it describes whole-body external irradiation rather than localized brachytherapy with Tantalum-182. |
| 228697004 (Yttrium 90 therapy) | is related to | EBA.GA.BE (Destruction of thyroid gland, using radioactive iodine) | ICHI lacks a general radionuclide therapy code or any yttrium-90-specific code. EBA.GA.BE is the only ICHI code representing therapeutic destruction using an internally administered radioactive isotope, sharing the same fundamental therapeutic modality (radionuclide therapy) as yttrium-90 therapy, but it differs in both the target organ (thyroid only vs. unspecified) and the specific radioisotope (iodine-131 vs. yttrium-90). |
| 236945008 (Antepartum obstetric procedure) | is related to | NUE (Functions related to pregnancy) | ICHI does not have a single code that directly represents "antepartum obstetric procedure" as a grouper concept. NUE covers pregnancy-related interventions but focuses on functional aspects (assessment, monitoring, education) rather than encompassing all structural obstetric procedures (on uterus, placenta, fetus) that the SNOMED concept includes. |
| 236883005 (Evacuation of retained product of conception) | is related to | NME.JE.AC (Dilatation and curettage of uterus) | Dilatation and curettage of the uterus is the standard surgical technique used for evacuation of retained products of conception. However, the SNOMED concept specifies the clinical indication (retained products) without specifying the surgical technique, while the ICHI code specifies the technique (D&C) without restricting it to any particular indication. |
| 40274000 (General outpatient clinic admission) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI does not have a specific concept for outpatient clinic admission as an administrative event. PZB.ZZ.ZZ is the closest match as a generic unspecified health management encounter on the whole person, but it lacks the outpatient/clinic setting specificity and represents a residual "unspecified" category rather than a defined concept. |
| 185348006 (Encounter for fear) | is related to | AUD.AA.ZZ (Assessment of emotional functions) | "Encounter for fear" describes the reason for a clinical visit (fear as an emotional concern), while AUD.AA.ZZ represents the assessment intervention targeting emotional functions, which is the most likely intervention performed during such an encounter. The equivalence is "relatedto" because the SNOMED concept is an encounter-level concept (reason for visit) whereas the ICHI code is a specific intervention (assessment), and "emotional functions" is broader than "fear" alone. |
| 185345009 (Encounter for symptom) | is related to | PZB.AA.ZZ (General health assessment) | ICHI classifies health interventions rather than encounter reasons, so there is no direct equivalent for "Encounter for symptom." PZB.AA.ZZ (General health assessment) represents the most typical intervention performed during a symptom-driven encounter, but the concepts are fundamentally different in nature — one describes a reason for an encounter and the other describes an assessment intervention. |
| 270430005 (Provider-initiated encounter) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI does not classify encounters by who initiated them; "Provider-initiated encounter" is an administrative context qualifier describing the initiating party, not a health intervention. PZB.ZZ.ZZ is the closest available code as it represents a generic health management encounter, but it lacks the semantic dimension of provider initiation and is a residual/unspecified category. |
| 423215004 (Provision of continuity of care) | is related to | PZB.TD.ZZ (Case coordination) | "Case coordination" in ICHI captures the core activity of organizing and integrating services across providers for a person, which is the primary mechanism for delivering continuity of care. However, "provision of continuity of care" is a broader principle-level concept encompassing not just coordination activities but also the goal of seamless, uninterrupted care across time and settings. |
| 47905007 (Postoperative administration of analgesia) | is related to | AXA.DB.AC (Oral or enteral medication for pain) | The SNOMED concept describes postoperative analgesic administration without specifying a route, while ICHI subdivides pain medication by route (oral, percutaneous, intravenous, transdermal). No single ICHI code captures route-unspecified analgesic administration, and ICHI does not encode the postoperative context. AXA.DB.AC is the most commonly applicable route but specifies oral route and omits the postoperative context. |
| 394934009 (Combined preoperative chemotherapy and radiotherapy) | is related to | PZA.DB.AZ (Administering pharmacotherapy, route not specified) | ICHI has no single code for combined chemoradiation or neoadjuvant therapy. PZA.DB.AZ captures the pharmacotherapy (chemotherapy) component but omits the radiotherapy component entirely and has no mechanism to express preoperative/neoadjuvant intent. In ICHI, this concept would require at minimum two codes (pharmacotherapy plus a site-specific radiotherapy code) combined with a simultaneous extension code. |
| 169333002 (Preoperative external beam radiotherapy) | is related to | PZA.GA.BA (Total body irradiation) | ICHI has no general "external beam radiotherapy" code independent of body site, nor any temporal qualifier (preoperative/neoadjuvant). All ICHI radiotherapy codes are site-specific. PZA.GA.BA is the only non-organ-specific radiation therapy code but refers specifically to total body irradiation (typically for bone marrow transplant conditioning), not to preoperative external beam radiotherapy directed at a tumor site. |
| 233567007 (Preoperative hemodilution) | is related to | DIA.JH.AF (Collection of blood or blood products) | Preoperative hemodilution is a specific blood conservation technique involving withdrawal of the patient's blood with simultaneous replacement by volume expanders. ICHI has no specific code for hemodilution; DIA.JH.AF captures the core blood withdrawal component but does not represent the simultaneous volume replacement or the preoperative timing. |
| 432442004 (Collection of forensic data) | is related to | PZA.AE.AH (Physical examination of whole body) | ICHI has no forensic or medicolegal-specific codes. Physical examination of whole body is the closest match as forensic data collection centers on a systematic physical examination, but the ICHI code lacks the forensic/legal purpose qualifier and does not encompass specimen collection or evidence documentation. |
| 446181006 (Forensic plain X-ray) | is related to | PZA.BA.BA (X-ray of whole body) | ICHI has no forensic or medicolegal qualifier for imaging procedures. PZA.BA.BA is the closest match as a non-region-specific plain X-ray, but the forensic context is not representable in ICHI, and ICHI specifies "whole body" whereas the SNOMED concept leaves the body region unspecified, making the relationship one of related concepts rather than a direct subsumption. |
| 258174001 (Imaging guidance) | is related to | PZX.BA.BL (Image capture and analysis, not elsewhere classified) | ICHI models imaging guidance as extension codes (XG0MQ2 and modality-specific children) rather than as standalone interventions. PZX.BA.BL is the closest assignable code, representing a generic imaging action at an unspecified site, but it describes diagnostic imaging as a primary intervention rather than the auxiliary use of imaging to guide another procedure. |
| 45681003 (Incision, exploration and biopsy for determination of stage of disease) | is related to | PAK.AE.AA (Exploratory laparotomy) | The SNOMED concept describes a combined incision, exploration, and biopsy procedure for disease staging at an unspecified body site, while PAK.AE.AA covers only the exploratory laparotomy portion (abdomen-specific, without biopsy or staging intent). The match is imprecise in both anatomical scope and procedural components. |
| 169335009 (External beam radiotherapy with surgery and chemotherapy) | is related to | PZA.GA.BA (Total body irradiation) | ICHI has no single code representing combined modality therapy (radiotherapy + surgery + chemotherapy). PZA.GA.BA is the only non-site-specific radiotherapy code in ICHI, representing the radiotherapy component, but it specifically denotes total body irradiation rather than external beam radiotherapy and entirely omits the surgery and chemotherapy components of the SNOMED concept. |
| 169541001 (Postcoital contraceptive procedure) | is related to | NME.DL.AC (Insertion of device into uterus) | ICHI has no specific code for postcoital/emergency contraception. NME.DL.AC covers insertion of a device (e.g., copper IUD) into the uterus, which is one recognized method of postcoital contraception, but the SNOMED concept encompasses all emergency contraceptive methods (including oral medications) and NME.DL.AC also covers non-contraceptive uterine device insertions, making this a related but not directly equivalent mapping. |
| 18183009 (Fixed prosthodontic procedure) | is related to | KAE.MK.AC (Restoration of tooth) | ICHI's "Restoration of tooth" (KAE.MK.AC) is the closest intervention code covering fixed prosthodontic work such as crowns, but the concepts do not align perfectly. KAE.MK.AC is broader in that it includes non-prosthodontic restorations (e.g., fillings), while SNOMED's "Fixed prosthodontic procedure" also encompasses multi-unit fixed bridges which extend beyond single-tooth restoration. |
| 183037005 (Male infertility therapy) | is related to | NUD.PH.ZZ (Training of functions related to fertility) | ICHI lacks a comprehensive "male infertility therapy" category. NUD.PH.ZZ ("Training of functions related to fertility") is the closest therapeutic intervention among the assignable codes, but it is neither male-specific nor broadly inclusive of all infertility therapies (e.g., pharmacological, surgical), making the relationship "relatedto" rather than a direct equivalence. |
| 183280009 (Deafness remedial therapy) | is related to | CTK.PH.ZZ (Training of sensations associated with hearing and vestibular functions) | "Deafness remedial therapy" is a broad therapeutic concept covering rehabilitation for hearing impairment, while CTK.PH.ZZ specifically targets training of sensations associated with hearing (and vestibular) functions. ICHI lacks a direct "Training of hearing functions" code, making CTK.PH.ZZ the closest available therapeutic intervention in the hearing domain, though it differs in scope by including vestibular sensations. |
| 183481006 (Non-urgent hospital admission) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not have a specific code for hospital admission (urgent or non-urgent). "Referral to health provider" is the most conceptually related code, as a non-urgent admission typically involves a planned referral to a hospital, but it describes the referral action rather than the admission event itself and is not specific to hospital or inpatient settings. |
| 183487005 (Non-urgent medical admission) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI does not classify administrative processes such as hospital admissions; it classifies health interventions. "Non-urgent medical admission" is an encounter/administrative concept with no direct equivalent in ICHI. PZB.ZY.ZY is the closest residual code for a health management encounter not elsewhere classified, but the semantic overlap is limited. |
| 183491000 (Non-urgent geriatric admission) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI does not classify hospital admissions as interventions, so no direct or broader match exists. PZB.ZY.ZY is the most relevant residual code under the "Interventions on whole person" block, capturing the notion of a health encounter that does not fit other ICHI categories, but it lacks the admission-specific, non-urgent, and geriatric dimensions of the SNOMED concept. |
| 20135006 (Screening procedure) | is related to | PZB.AA.ZZ (General health assessment) | ICHI lacks a direct "screening procedure" concept. PZB.AA.ZZ "General health assessment" is the closest clinical match as screening is a form of health assessment, but the two concepts differ in scope — screening specifically targets detection of disease/risk in asymptomatic individuals, while general health assessment is broader in purpose but narrower in that it implies a comprehensive whole-person evaluation rather than targeted screening tests. |
| 277132007 (Therapeutic procedure) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | SNOMED "Therapeutic procedure" is the broadest therapeutic concept, encompassing virtually all therapeutic health interventions. ICHI has no equivalent top-level therapeutic grouper; PZB.ZZ.ZZ is the most general unspecified health management intervention but differs fundamentally in framing (encounter vs. therapy) and scope. |
| 239702009 (Repair of cast brace) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | ICHI lacks a specific code for repairing a cast brace. PZX.KB.AH targets the same device domain (external immobilisation devices, which includes cast braces) but denotes replacement rather than repair — repair preserves the existing device while replacement substitutes it entirely, making them related but not semantically equivalent. |
| 20655006 (Application of tourniquet) | is related to | IZE.LA.AA (Occlusion of blood vessel, not elsewhere classified) | A tourniquet achieves temporary external occlusion of blood flow in an extremity, which is functionally related to blood vessel occlusion. However, the ICHI code typically refers to surgical or endovascular occlusion procedures rather than external compression devices, and ICHI lacks a specific code for tourniquet application. |
| 443076007 (Fluoroscopy of programmable cerebrospinal fluid shunt) | is related to | MAA.BA.BA (X-ray of skull) | ICHI has no specific code for fluoroscopic imaging of a CSF shunt. MAA.BA.BA captures the imaging modality (fluoroscopy/X-ray) and primary anatomical site (skull) where the shunt valve is visualized, but does not specify the shunt device as the target. |
| 66681002 (Subdural-peritoneal shunt with valve) | is related to | AAE.LI.AA (Ventricular shunt) | ICHI has no specific code for subdural-peritoneal shunts. AAE.LI.AA represents a similar CSF diversion shunt within the cranium but specifies the ventricle as the origin rather than the subdural space, and does not specify the peritoneal destination or valve component. |
| 278413009 (Lactation management) | is related to | NUH.PP.ZZ (Counselling about lactation) | "Lactation management" encompasses assessment, education, advising, counselling, and practical support of lactation. NUH.PP.ZZ captures the core clinical guidance activity but is only one component of the broader management concept. |
| 441368007 (Resting the breast from breastfeeding) | is related to | VEH.PN.ZZ (Advising about breastfeeding behaviours) | ICHI has no code for the act of temporarily resting the breast from breastfeeding. VEH.PN.ZZ is the most clinically related code, as breast rest is typically delivered as professional advice about modifying breastfeeding behaviour, but the SNOMED concept describes the resting behaviour itself rather than the advisory intervention. |
| 732970000 (Controlled ovarian stimulation) | is related to | NUD.PH.ZZ (Training of functions related to fertility) | ICHI lacks a specific code for pharmacological ovarian stimulation. NUD.PH.ZZ is the closest leaf-level code within the fertility interventions block, but "training" implies behavioral/physical approaches rather than the gonadotropin-based hormonal stimulation protocol. |
| 726556001 (Maternal spindle transfer mitochondrial replacement therapy) | is related to | NME.DH.AC (Uterine reproductive transfer procedures) | ICHI has no specific code for mitochondrial replacement therapy or spindle transfer techniques. NME.DH.AC covers assisted reproductive transfer procedures involving the uterus, which is the broader procedural context, but does not capture the specific mitochondrial/nuclear manipulation. |
| 61285001 (Ovulation induction) | is related to | NUD.PH.ZZ (Training of functions related to fertility) | ICHI lacks a specific code for pharmacological ovulation induction. NUD.PH.ZZ is the closest category within the fertility interventions block, but it represents training/rehabilitation-type interventions rather than drug therapy for ovulation stimulation. |
| 386517008 (Area restriction) | is related to | UBC.WB.ZZ (Restricting movement of people) | "Area restriction" is a clinical/nursing intervention restricting an individual patient's movement to a designated area. UBC.WB.ZZ captures the core concept of restricting movement but is classified under population-level environmental interventions rather than individual patient-level clinical care. |
| 406164000 (Chemical restraint) | is related to | PZA.DB.AZ (Administering pharmacotherapy, route not specified) | ICHI has no specific code for chemical restraint or involuntary medication administration. PZA.DB.AZ captures the action of administering pharmacotherapy but does not convey the restraint purpose or involuntary context central to the SNOMED concept. |
| 736766001 (Control and restraint management) | is related to | VB1.TM.ZZ (Environment modification to influence violence-related behaviours, unspecified) | ICHI lacks a specific code for clinical patient restraint. VB1.TM.ZZ is the most conceptually aligned, as control and restraint involves modifying the patient's physical environment to manage violence-related behaviour, but ICHI frames this as a general environmental intervention rather than a direct clinical restraint procedure. |
| 225212001 (Holding procedure) | is related to | SHD.RB.ZZ (Practical support with maintaining body position) | "Holding procedure" refers to physically holding a patient still or in position during clinical care. SHD.RB.ZZ captures providing hands-on assistance to maintain a body position, but differs in framing: ICHI focuses on activities/participation support while the SNOMED concept denotes a clinician-directed holding intervention. |
| 710767007 (Implementation of physical restraint regime) | is related to | UBC.WB.ZZ (Restricting movement of people) | ICHI does not have a specific code for clinical physical restraint of an individual patient. UBC.WB.ZZ captures the core semantic concept of restricting movement but is classified under population-level environmental interventions rather than individual clinical care. |
| 405688008 (Legal physical restraint procedure) | is related to | UBC.WB.ZZ (Restricting movement of people) | ICHI has no code for individual-level physical restraint under legal authority. UBC.WB.ZZ captures restricting movement but is a population-level public health intervention rather than a patient-level clinical restraint procedure. |
| 225210009 (Locked door procedure) | is related to | VBA.TM.ZZ (Environment modification to influence self-harm behaviours) | A locked door procedure is an environmental control measure in psychiatric settings. VBA.TM.ZZ captures the environment modification nature and its primary clinical purpose of preventing self-harm, but locked doors also serve broader purposes (preventing violence, absconding) outside this ICHI code's scope. |
| 386423001 (Physical restraint) | is related to | UBC.WB.ZZ (Restricting movement of people) | ICHI lacks a specific code for individual-patient physical restraint in a clinical setting. UBC.WB.ZZ captures the core concept of restricting movement but operates at a population/environmental level rather than an individual clinical level. |
| 225209004 (Removal of individual) | is related to | PZB.TJ.ZZ (Transporting person) | "Removal of individual" refers to physically removing a person from a location or situation in a safety/care context. "Transporting person" involves physically moving a person but emphasizes transport rather than the act of removal from a specific situation. |
| 3112006 (Restraint removal) | is related to | PZX.SO.AH (Removal of assistive product from body site, not elsewhere classified) | ICHI has no specific code for removing physical/behavioral restraints. PZX.SO.AH covers removal of an externally applied product from the body, but a restraint is a restrictive safety device rather than an assistive product. |
| 225211008 (Search procedure) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | "Search procedure" refers to a security/safety intervention where a patient or belongings are searched for prohibited items. ICHI has no specific code for this; PZB.ZY.ZY is a residual code for health management encounters not elsewhere classified. |
| 90278001 (Secluding patient) | is related to | PZB.VE.ZZ (Isolation of a person for infection control) | Both involve physically isolating an individual patient, but PZB.VE.ZZ is scoped to infection control while "Secluding patient" refers to psychiatric/behavioral seclusion. The core action is shared but the clinical context differs fundamentally. |
| 10442004 (Splint maintenance) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | ICHI lacks a direct "splint maintenance" code. PZX.KB.AH covers replacement of external immobilisation devices (which includes splints) at an unspecified body site, but "replacement" is only one specific activity within the broader concept of "maintenance" (which also encompasses checking, adjusting, and repairing). |
| 1234817009 (Changing of drainage bag) | is related to | NAI.KA.AC (Replacement of indwelling urinary catheter) | "Changing of drainage bag" is a generic, body-site-unspecified procedure involving replacement of an external collection bag attached to a drainage system. NAI.KA.AC is the closest clinically relevant ICHI code as urinary catheter drainage bags are the most common context, but the ICHI code refers to replacing the catheter itself (not just the bag) and is specific to the urinary system. |
| 18038006 (Protection of surroundings from individual) | is related to | VB1.TM.ZZ (Environment modification to influence violence-related behaviours, unspecified) | The SNOMED concept describes protecting the physical environment from a potentially violent or destructive individual. The ICHI code covers environment modification to influence violence-related behaviours more broadly, sharing the same clinical context but differing in focus — SNOMED emphasizes protecting the environment, while ICHI emphasizes modifying the environment to influence behaviour. |
| 225332003 (Physical and psychosocial approaches) | is related to | ATF.PH.ZZ (Training of global psychosocial functions) | The SNOMED concept is a broad grouper for combined physical and psychosocial therapeutic modalities. ICHI has no single code capturing this dual nature; ATF.PH.ZZ is the closest assignable code for the psychosocial dimension, but it is limited to training actions on psychosocial functions only, missing the physical component. |
| 225334002 (Intervention regime) | is related to | PZB.TB.ZZ (Individualised planning) | "Intervention regime" is a broad concept referring to any structured, coordinated set of health interventions or treatment protocol. ICHI's "Individualised planning" captures planned health interventions at the whole-person level, but specifically denotes the act of creating an individualized plan rather than representing a regime of interventions in general. |
| 225365006 (Care regime) | is related to | PZB.TB.ZZ (Individualised planning) | "Care regime" refers to a broad, structured approach to managing a patient's overall care, encompassing planning, coordination, and ongoing delivery. "Individualised planning" captures the core planning aspect but does not fully encompass the ongoing execution and management dimensions implied by the term "regime." |
| 225986002 (Gaining safe level of mobility prior to hospital discharge) | is related to | SJA.PH.ZZ (Training in walking) | The SNOMED concept encompasses achieving safe overall mobility in the context of hospital discharge readiness, including but not limited to walking. SJA.PH.ZZ captures the training-in-walking component (the most central element) but the SNOMED concept is broader in scope and carries additional discharge-planning context that ICHI does not represent. |
| 225993003 (Promoting rest) | is related to | VEC.RB.ZZ (Practical support with sleep and rest behaviours) | "Promoting rest" is a broad, non-specific nursing intervention aimed at facilitating rest, while VEC.RB.ZZ specifies "practical support" as the action type and includes both sleep and rest behaviours. The ICHI code is the closest match but differs in scope (includes sleep) and specificity of method (practical support vs. general promotion). |
| 228114008 (Child health procedures) | is related to | PZB.AA.ZZ (General health assessment) | ICHI has no specific concept for child health procedures as a category. "General health assessment" is the closest single code representing a whole-person health assessment (a core component of child health care), but it is not child-specific and does not encompass the full breadth of child health procedures (immunizations, developmental screening, growth monitoring, etc.). |
| 228558003 (Psychosocial intervention strategy) | is related to | ATF.PP.ZZ (Counselling for global psychosocial functions) | The SNOMED concept is a broad strategic/planning concept for psychosocial interventions. ICHI classifies specific psychosocial intervention types under the ATF block but has no single code for an overall strategy. ATF.PP.ZZ is the most commonly used specific psychosocial intervention, but represents only one action type within the broader strategy concept. |
| 228615008 (Provision of transport) | is related to | PZB.TJ.ZZ (Transporting person) | SNOMED "Provision of transport" is an administrative/management procedure (parent: "Management procedure") about arranging or making transport available (taxi, ambulance, air ambulance, commercial flight), while ICHI's "Transporting person" describes the physical act of moving a person. The concepts are related through the transport domain but differ fundamentally: one is service coordination, the other is a hands-on intervention. |
| 241029005 (Recharging suction device on drain) | is related to | LZZ.SN.AE (Management of internal device for skin and subcutaneous tissue, not elsewhere classified) | ICHI has no specific code for recharging or servicing a suction drain. LZZ.SN.AE covers management of internal devices in skin and subcutaneous tissue (where surgical drains typically exit), but it is broader in device scope (any internal device, not specifically suction drains) and the SNOMED concept describes a specific maintenance action (recharging suction/vacuum) rather than general device management. |
| 235564002 (Repositioning of bile duct T-tube) | is related to | KCM.KA.AD (Replacement of device in biliary duct) | ICHI has no specific code for repositioning a biliary tube or T-tube. KCM.KA.AD addresses management of an existing device in the biliary duct, but "replacement" (substituting a device) is semantically distinct from "repositioning" (adjusting the position of the same device), making this a related but not directly equivalent mapping. |
| 241718004 (Protection of patient) | is related to | VC1.ZZ.ZZ (Other and unspecified interventions targeting unspecified safety-related behaviours) | ICHI lacks a direct equivalent for general clinical patient protection procedures. VC1.ZZ.ZZ is the closest match within ICHI's safety-related behaviours block, but ICHI frames safety interventions as targeting health-related behaviours at a population level, whereas the SNOMED concept refers to direct clinical protective actions taken on behalf of an individual patient. |
| 236941004 (Ampullosalpingoscopy) | is related to | NME.AE.AD (Hysteroscopy) | ICHI has no salpingoscopy or fallopian tube endoscopy code. Hysteroscopy is the most closely related endoscopic examination in the female reproductive tract, but it targets the uterine cavity rather than the ampulla of the fallopian tube. |
| 236347006 (Hydrocele operation) | is related to | NGL.FA.AA (Incision of testis and tunica vaginalis) | A hydrocele operation targets the tunica vaginalis, and NGL.FA.AA addresses this anatomy via incision. However, the SNOMED concept is a general term for any hydrocele surgery, while the ICHI code covers incision for any indication, making them related but not directly equivalent. |
| 232502008 (Operation via maxillary antrum) | is related to | JAF.FA.AA (Radical maxillary antrotomy) | The SNOMED concept is a general grouper for any surgical procedure through the maxillary antrum as an approach route, while JAF.FA.AA is a specific radical procedure on the maxillary sinus. They share anatomy and access route but differ in specificity and semantic framing. |
| 233150009 (Patch enlargement of conduit) | is related to | HZZ.LG.AF (Percutaneous transluminal dilatation of cardiac conduit) | Both codes target enlargement of a cardiac conduit, but the SNOMED concept describes an open surgical technique using a patch, whereas the ICHI code specifies a percutaneous transluminal approach. They share the same target and therapeutic intent but differ in surgical method. |
| 241733007 (Tourniquet cuff inflation) | is related to | IZE.ZZ.ZZ (Other interventions on vessels, not elsewhere classified) | ICHI has no specific code for tourniquet application or cuff inflation. IZE.ZZ.ZZ is the residual catch-all for vascular interventions not elsewhere classified, the closest available code since tourniquet cuff inflation temporarily occludes blood flow. |
| 241731009 (Tourniquet positioning (uninflated)) | is related to | PZX.LD.ZZ (Positioning of a part of the body, not elsewhere classified) | ICHI has no specific code for tourniquet positioning. PZX.LD.ZZ is the closest general positioning intervention, but it refers to positioning of a body part rather than positioning a device onto a body part. |
| 25051003 (Removable prosthodontic procedure) | is related to | KAE.LC.AC (Application of dental device) | KAE.LC.AC covers application/fitting of dental devices generally, including removable prosthodontic devices. The SNOMED concept is specifically about removable prosthodontics but encompasses all related procedures, while the ICHI code covers all dental device applications but only the application action — the overlap is partial in both directions. |
| 276239002 (Therapy) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | SNOMED "Therapy" is an extremely broad grouper encompassing all therapeutic interventions. ICHI has no single code with equivalent breadth; PZB.ZZ.ZZ is the most general health management code but differs in framing (encounter vs. therapy) and does not capture the therapeutic scope. |
| 305224000 (Admission by health worker) | is related to | UEP.TI.ZZ (Referral to health provider) | "Admission by health worker" describes initiating a patient's entry into a healthcare service, while "Referral to health provider" describes directing a person to a health provider. Both involve facilitating access to health services but are semantically distinct steps in the care pathway. |
| 310361003 (Non-urgent cardiological admission) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not classify hospital admissions as interventions. UEP.TI.ZZ is the most conceptually related code, as a non-urgent cardiological admission involves directing a patient to a cardiac health provider, but it lacks cardiology specialty specificity, inpatient context, and non-urgent qualifier. |
| 62013009 (Ambulating patient) | is related to | SJA.RB.ZZ (Practical support with walking) | "Ambulating patient" refers to physically assisting a patient to walk, which aligns closely with "Practical support with walking." However, the SNOMED concept is framed as a clinical nursing procedure, while the ICHI code is framed as a functional support intervention within the activities and participation domain, making them related but not semantically equivalent. |
| 427219009 (Anchoring of chest drain using tape) | is related to | JCB.KA.AA (Replacement of pleural drainage device) | ICHI lacks a specific code for anchoring or securing a pleural drain with tape. JCB.KA.AA is the only device-management code within the pleural cavity block, but it describes replacement rather than securing in place. Both concepts share the same target (pleural drainage device) and involve device maintenance, but the actions are semantically distinct. |
| 715591003 (Assessment of function of chest drain) | is related to | JCB.KA.AA (Replacement of pleural drainage device) | ICHI lacks a specific code for assessment or management of a pleural drainage device. The pleural cavity block contains codes only for drainage, removal, and replacement. JCB.KA.AA addresses the same device and implies evaluation of function as part of the replacement decision, but the SNOMED concept describes assessing function rather than replacing the device. |
| 55628002 (Maintenance of thoracic drain) | is related to | JCB.KA.AA (Replacement of pleural drainage device) | ICHI has no direct "management of pleural drainage device" code. JCB.KA.AA is the only ICHI code targeting the pleural drainage device, but "replacement" represents only one specific activity within the broader concept of "maintenance" (which also includes monitoring, flushing, dressing, and repositioning). |
| 386371002 (Normalization promotion) | is related to | ATF.PP.ZZ (Counselling for global psychosocial functions) | Normalization promotion is a nursing intervention focused on helping families achieve a sense of normal life despite chronic illness/disability. ATF.PP.ZZ covers counselling for global psychosocial functions, which is the closest match, but normalization promotion encompasses a specific philosophy of care beyond general psychosocial counselling, and may include practical support and education beyond counselling alone. |
| 710152003 (Promotion of adherence to medication) | is related to | UAC.PM.ZZ (Education about medications) | ICHI has no specific code for medication adherence promotion. UAC.PM.ZZ is the closest match because patient education is the primary mechanism for promoting adherence, but "education about medications" is broader in scope while "promotion of adherence" may also encompass non-educational strategies (reminders, packaging aids), making neither a true subset of the other. |
| 710141009 (Promotion of caregiver child attachment) | is related to | SSK.PM.ZZ (Education about engaging in parent-child relationships) | SSK.PM.ZZ targets parent-child relationships, the closest ICHI domain to caregiver-child attachment, but the SNOMED concept addresses "promotion" broadly while the ICHI code specifies "education" and covers parent-child relationships generally rather than attachment/bonding specifically. |
| 710142002 (Promotion of caregiver role) | is related to | SPD.PH.ZZ (Training in assisting others) | "Promotion of caregiver role" encompasses a broad range of interventions aimed at developing and supporting the caregiver role. SPD.PH.ZZ captures the target well ("assisting others" maps to the caregiver role) but restricts the action to training specifically, whereas the SNOMED concept does not specify a single intervention method. |
| 710143007 (Promotion of child development) | is related to | ETM.PM.ZZ (Education about growth and development) | ETM.PM.ZZ covers education about growth and development, a key component of developmental promotion but not semantically equivalent. The SNOMED concept is specifically about children and encompasses a broader range of promotional activities beyond education alone, while the ICHI code is not age-restricted and limited to the educational intervention type. |
| 711038007 (Promotion of conception) | is related to | NUD.PP.ZZ (Fertility counselling) | "Promotion of conception" is a broad health promotion concept encompassing multiple types of supportive interventions (education, advising, training, counselling) aimed at achieving conception. "Fertility counselling" (NUD.PP.ZZ) is the single most relevant ICHI code as it directly addresses fertility support through guidance, but it represents one specific intervention modality (counselling) rather than the full scope of conception promotion activities captured by the SNOMED concept. |
| 710145000 (Promotion of effective bowel elimination) | is related to | KTK.PM.ZZ (Education about defaecation functions) | "Promotion of effective bowel elimination" is a broad nursing intervention encompassing education, advising, training, and practical support for bowel function. KTK.PM.ZZ covers education about defaecation functions, which is the closest single ICHI code but represents only one facet (education) of the broader promotional concept; no single ICHI code captures the full scope of "promotion." |
| 710146004 (Promotion of effective family communication) | is related to | SSJ.PP.ZZ (Counselling about engaging in family relationships) | The SNOMED concept specifically targets promotion of effective communication within families, while the ICHI code addresses counselling about engaging in family relationships more broadly. The mismatch is twofold: the ICHI action ("counselling") is more specific than SNOMED's "promotion," and the ICHI target ("engaging in family relationships") is broader than "effective family communication." |
| 710147008 (Promotion of effective family process) | is related to | SSJ.PP.ZZ (Counselling about engaging in family relationships) | The SNOMED concept is a broad promotion intervention targeting effective family processes without specifying a modality, while SSJ.PP.ZZ specifically addresses counselling about family relationships. They share the same domain (family relationships/processes) but differ in both scope and intervention type — "promotion" is wider than "counselling," and "effective family process" encompasses more than "engaging in family relationships." |
| 710148003 (Promotion of effective urinary elimination) | is related to | NTD.PH.ZZ (Training of urination functions) | "Promotion of effective urinary elimination" is a broad nursing health-promotion intervention that may encompass training, education, advising, and supportive activities to improve urinary elimination. NTD.PH.ZZ specifically covers training of urination functions (e.g., bladder training, timed voiding), which is the most clinically representative single component but does not fully capture the holistic "promotion" scope. |
| 438294006 (Promotion of individuality) | is related to | AUL.PP.ZZ (Counselling for experience of self and time functions) | "Experience of self" in ICHI (derived from ICF b180) covers body image, self-concept, and personal identity, which aligns with the concept of individuality. However, the ICHI code also includes "time functions" and the action type "counselling" is only one specific modality whereas SNOMED's "promotion" is a broader, non-specific intervention approach. |
| 710151005 (Promotion of infant development) | is related to | ETM.PM.ZZ (Education about growth and development) | ETM.PM.ZZ covers education about growth and development in general, which is the closest ICHI match for promoting infant development. However, the SNOMED concept is specifically about infants and encompasses promotion activities broader than education alone, while the ICHI code is not age-specific and is limited to the education modality. |
| 439332001 (Promotion of lactation) | is related to | NUH.PM.ZZ (Education about lactation) | "Promotion of lactation" encompasses a range of supportive interventions (education, advising, counselling, practical support) to encourage milk production, while NUH.PM.ZZ specifically covers education about lactation. Education is the closest single intervention type to promotion, but promotion is broader in scope. |
| 710154002 (Promotion of positive psychological status) | is related to | VEL.PM.ZZ (Education to influence behaviours related to psychological health and wellbeing) | The SNOMED concept addresses promotion of positive psychological status as a broad health promotion activity, while the ICHI code specifies education as the intervention method targeting behaviours related to psychological health and wellbeing. The target domains overlap substantially but they differ in both scope and action type. |
| 710155001 (Promotion of positive relationship) | is related to | SR1.PM.ZZ (Education about engaging in interactions and interpersonal relationships, unspecified) | The SNOMED concept is a broad promotional intervention that does not specify a method, while SR1.PM.ZZ specifies "education" as the intervention type and covers all interpersonal interactions/relationships rather than specifically "positive" ones. The target domain aligns well, but the mismatch in both method and scope makes this a related but not directly equivalent match. |
| 733916006 (Promotion of self-bathing) | is related to | SMB.PM.ZZ (Education about washing oneself) | "Promotion of self-bathing" is a broad health promotion concept that encompasses education, training, advising, and encouragement to enable independent bathing. SMB.PM.ZZ captures the education component but does not fully encompass the broader promotional intent, which could also include training and advising. |
| 710156000 (Promotion of social support) | is related to | SX1.RB.ZZ (Practical support with engaging in community, social and civic life, unspecified) | The SNOMED concept is an individual-level health promotion intervention aimed at encouraging and facilitating social support. SX1.RB.ZZ covers support for social engagement, but the ICHI code frames the action as "practical support" rather than "promotion," includes civic life beyond social support, and ICHI lacks a single code that precisely captures promoting social support at the individual level. |
| 710127000 (Promotion of spiritual support) | is related to | SXH.RB.ZZ (Practical support with engaging in religion and spirituality) | "Promotion of spiritual support" broadly encompasses promoting and facilitating spiritual support, which could include practical support, emotional support, education, and advocacy. SXH.RB.ZZ specifically covers practical support for engaging in religion and spirituality, the closest single match but representing only one dimension of what "promotion of spiritual support" entails. |
| 386492001 (Vehicle safety promotion) | is related to | VCA.VB.ZZ (Awareness raising to influence road safety behaviours) | "Vehicle safety promotion" maps conceptually to awareness raising about road safety behaviours. The match is "relatedto" because ICHI's VCA.VB.ZZ focuses on road safety behaviours broadly (including pedestrians and cyclists) while SNOMED focuses specifically on vehicle safety; additionally, "promotion" could encompass multiple ICHI action types beyond just awareness raising. |
| 50271000 (Dental implant maintenance procedure) | is related to | KAE.SM.AC (Management of external appliance of tooth) | ICHI has no specific code for management/maintenance of dental implants (internal devices of teeth). KAE.SM.AC is the closest match as it covers management of tooth-related devices within the correct anatomical block, but it specifies external appliances rather than internal osseointegrated implants. |
| 34896006 (Incision) | is related to | MRS.FA.AA (Incision of soft tissue of unspecified site) | SNOMED "Incision" is a completely generic concept covering incision of any tissue at any site. ICHI has no site-agnostic incision code; MRS.FA.AA is the most generic available, targeting soft tissue at an unspecified musculoskeletal site, but does not encompass incision of skin, organs, vessels, or other structures. |
| 367428009 (Desensitization therapy) | is related to | DTB.DB.AE (Percutaneous administration of immunological agent) | Desensitization therapy (allergen immunotherapy) is most commonly administered via percutaneous injection (allergy shots), which falls under DTB.DB.AE. However, the ICHI code is broader (covering all immunological agents, not just allergens) and desensitization therapy can also be delivered via other routes (e.g., sublingual/oral), so neither concept fully subsumes the other. |
| 373655009 (Medical service) | is related to | UEP.RG.ZZ (Providing health services, systems and policies) | SNOMED "Medical service" is a generic individual-level clinical service concept, while ICHI UEP.RG.ZZ addresses providing health services at a population/systems/policy level. Both relate to health service provision, but differ fundamentally in scope and perspective — SNOMED refers to a patient-facing clinical service, whereas ICHI refers to a macro-level environmental intervention. |
| 386254000 (Delegation) | is related to | PZB.TD.ZZ (Case coordination) | ICHI has no direct concept for delegation of tasks between healthcare workers. "Case coordination" is the most conceptually related code, as delegation is one activity within the broader process of coordinating care, but case coordination encompasses many activities beyond delegation, and delegation specifically concerns the transfer of task responsibility. |
| 386325009 (Humor facilitation) | is related to | AUD.PG.ZZ (Assisting and leading exercise for emotional function) | Humor facilitation is a therapeutic technique using humor to assist patients with emotional coping and well-being. ICHI has no specific code for humor-based interventions. AUD.PG.ZZ represents guided therapeutic activities targeting emotional functions, which aligns with the emotion-focused nature of humor facilitation, but "assisting and leading exercise" implies structured exercises rather than a psychosocial technique. |
| 386425008 (Pneumatic tourniquet precautions) | is related to | MRM.AI.AE (Compartment pressure monitoring) | Pneumatic tourniquet precautions encompass a broad set of perioperative safety measures (circulation checks, timing, padding, neurovascular monitoring), while compartment pressure monitoring is a specific diagnostic monitoring activity addressing the primary clinical concern of tourniquet application. ICHI lacks a direct code for tourniquet precautions as a nursing safety intervention. |
| 386446004 (Staff development) | is related to | UCK.VA.ZZ (Capacity building targeting support from health professionals) | SNOMED's "Staff development" refers to organizational activities to improve healthcare staff skills and competencies. ICHI's UCK.VA.ZZ addresses capacity building targeting health professional support, which is the closest available concept but is framed as a population-level environmental intervention rather than a direct staff training/development activity. |
| 386447008 (Staff supervision) | is related to | UEP.VA.ZZ (Capacity building targeting health services, systems and policies) | Staff supervision is an operational management activity involving oversight and direction of healthcare staff. ICHI's UEP.VA.ZZ is a population-level environmental intervention that encompasses far more than staff supervision, and staff supervision as a specific managerial activity is not directly represented in ICHI. |
| 410803008 (Decompression operation) | is related to | MRJ.FC.AA (Release of joint of unspecified site) | SNOMED "Decompression operation" is a generic release/decompression at any site. ICHI has release (FC) codes at specific sites but no universal decompression code. MRJ.FC.AA covers joint release at an unspecified site, one of the most common decompression contexts, but does not encompass nerve, spinal, or organ decompression. |
| 4116001 (Construction of window) | is related to | CCA.ML.AA (Fenestration of inner ear with graft) | The SNOMED concept is a generic, non-site-specific surgical fenestration procedure, while ICHI CCA.ML.AA specifies fenestration of the inner ear with graft. CCA.ML.AA is the only ICHI code explicitly describing a fenestration/window construction, but the SNOMED concept encompasses window construction at any body site and without the graft qualifier. |
| 43372004 (Specimen dispatch and referral, routine) | is related to | PZX.AH.ZZ (Specimen collection, not elsewhere classified) | ICHI lacks a specific code for specimen dispatch or transport to a laboratory. PZX.AH.ZZ is the closest code in the specimen-handling domain, but it covers the collection step rather than the dispatch/referral step, making this a related but not equivalent match. |
| 4365001 (Surgical repair) | is related to | MRS.MK.AA (Repair of soft tissue of unspecified site) | SNOMED "Surgical repair" is a generic concept covering repair of any body structure. ICHI has extensive repair (MK) codes, all body-site-specific. MRS.MK.AA is the most generic available, targeting soft tissue at an unspecified musculoskeletal site, but does not encompass repair of skin, vessels, organs, or other structures. |
| 439993001 (Prevention of deep vein thrombosis) | is related to | DTA.DB.AE (Injection of anticoagulant) | ICHI has no dedicated code for DVT prevention as a clinical goal. DTA.DB.AE represents the most common pharmacological method used for DVT prophylaxis, but the SNOMED concept is a broader preventive intent encompassing multiple modalities (anticoagulation, compression, mobilization), while the ICHI code describes only one specific therapeutic action. |
| 440358008 (Primary prevention of cardiovascular disease) | is related to | HT2.PN.ZZ (Advising about functions of the cardiovascular system, not elsewhere classified) | ICHI lacks a specific code for primary CVD prevention as a comprehensive program. HT2.PN.ZZ covers advising about cardiovascular function, which is one component of primary CVD prevention, but the SNOMED concept encompasses a broader scope including risk assessment, lifestyle modification, pharmacological prophylaxis, and screening. |
| 443425001 (Preparation for procedure) | is related to | LZZ.SI.ZZ (Preparation of skin) | ICHI lacks a general "preparation for procedure" intervention. LZZ.SI.ZZ is the closest classifiable intervention code using the preparation action, but it is limited to skin preparation only, whereas the SNOMED concept covers all types of pre-procedural preparation (positioning, draping, anaesthesia setup, etc.). |
| 64597002 (Destructive procedure) | is related to | LZZ.GA.AH (Destruction of skin and subcutaneous cell tissue, not elsewhere classified) | SNOMED "Destructive procedure" is the most generic destruction concept, covering any method at any site. ICHI has no site-agnostic destruction code; all 169 destruction (GA) codes are tied to specific anatomical targets. LZZ.GA.AH is the broadest available NEC destruction code but is restricted to the integumentary system. |
| 66500008 (Physical medicine procedure) | is related to | PZB.PG.ZZ (Assisting and leading exercises for the whole person) | Physical medicine encompasses exercise therapy, electrotherapy, manual therapy, hydrotherapy, and other rehabilitation modalities. ICHI distributes physical medicine across multiple functional domains with no unified category. PZB.PG.ZZ covers the core exercise-based component at the whole-person level but does not encompass non-exercise physical medicine modalities. |
| 71025006 (Dilation procedure) | is related to | IZA.LG.AF (Percutaneous transluminal dilatation of artery, not elsewhere classified) | SNOMED "Dilation procedure" is a completely generic concept. Unlike other actions, ICHI has no "unspecified site" dilatation code. IZA.LG.AF is the least restrictive available dilatation code, covering percutaneous arterial dilatation, but is fundamentally a vascular procedure and does not encompass dilatation of GI, urological, or respiratory structures. |
| 710769005 (Implementation of safety regime) | is related to | VC1.ZZ.ZZ (Other and unspecified interventions targeting unspecified safety-related behaviours) | The SNOMED concept refers to actively implementing a safety regime for a patient. VC1.ZZ.ZZ covers unspecified safety-related behaviour interventions, but as a residual category it lacks the specific notion of "implementing a regime" and is framed around health behaviours rather than clinical safety measures. |
| 713150007 (Diabetic foot ulcer prevention) | is related to | LTC.AA.ZZ (Assessment of protective functions of the skin) | Diabetic foot ulcer prevention centers on assessing the skin's protective barrier function on the feet. However, the SNOMED concept is broader (encompassing education, footwear advice, ongoing preventive management) while the ICHI code is limited to assessment and is not foot- or diabetes-specific. |
| 75152009 (Transposition procedure) | is related to | MRT.LJ.AA (Tendon transfer or transplantation of unspecified site) | SNOMED "Transposition procedure" is a generic transfer/repositioning concept for any structure. ICHI has transfer (LJ) codes at specific sites with no universal transposition code. MRT.LJ.AA is the most generic, covering tendon transfer at an unspecified site, but does not encompass nerve, muscle, or vessel transposition. |
| 9632001 (Nursing procedure) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI does not classify interventions by the professional role performing them (e.g., nurse), so there is no direct "nursing procedure" concept. PZB.ZZ.ZZ is the most general whole-person health intervention code, but the SNOMED concept defines the intervention by practitioner role whereas ICHI defines by target and specificity level. |
| 879913000 (Hematopoietic stem cell mobilization) | is related to | DGA.DB.AE (Injection into bone marrow) | ICHI has no specific code for stem cell mobilization. DGA.DB.AE is the closest match within the bone marrow intervention block, but mobilization is typically performed via subcutaneous G-CSF injection (not directly into bone marrow) and the clinical purpose differs from a general bone marrow injection. |
| 91321000 (Immediate allogeneic transplantation, cadaver donor) | is related to | NAA.KD.AA (Kidney transplantation) | ICHI has only organ-specific transplantation codes with no generic allograft or donor-source distinction. NAA.KD.AA represents the most commonly performed transplantation but does not capture the cadaveric donor source or the "immediate" timing specified in the SNOMED concept. |
| 86403000 (Immediate allogeneic transplantation, living donor) | is related to | NAA.KD.AA (Kidney transplantation) | ICHI has only organ-specific transplantation codes with no donor-source distinction. NAA.KD.AA represents the most commonly performed transplantation but does not capture the living donor source or the "immediate" timing specified in the SNOMED concept. |
| 180045004 (Amputation stump procedure) | is related to | MRS.MK.AA (Repair of soft tissue of unspecified site) | The SNOMED concept is a broad grouper for any procedure performed on an amputation stump (revision, repair, wound care, reconstruction), for which ICHI has no dedicated stump-specific category. MRS.MK.AA captures the most common class of such procedures (soft tissue repair at the residual limb), but the ICHI code neither encodes the stump context nor covers the full range of stump interventions (e.g., bone trimming, debridement, prosthetic fitting), making this a related-but-not-equivalent match. |
| 704991006 (Anchoring of endotracheal tube) | is related to | JBA.DL.AC (Insertion of endotracheal tube) | ICHI has no dedicated code for securing or anchoring an endotracheal tube after placement; JBA.DL.AC covers insertion of the endotracheal tube into the trachea, which is a related but distinct procedure from the post-insertion act of mechanically anchoring/taping the tube to prevent dislodgement. The two concepts share the same anatomical target and device but represent different clinical actions. |
| 241726007 (Application of cricoid pressure) | is related to | JZZ.ZY.ZY (Other specified interventions on the respiratory system, voice and speech) | ICHI contains no specific code for cricoid pressure (Sellick maneuver); the procedure is a manual external compressive technique on the cricoid cartilage performed as an ancillary airway-protection maneuver, which falls within the respiratory system intervention domain but cannot be mapped to any more precise ICHI category. The residual "other specified" respiratory interventions code is the closest available container, making this a related-to rather than equivalent match. |
| 233419004 (Application of direct pressure to artery) | is related to | IZA.LA.AA (Occlusion of artery, not elsewhere classified) | ICHI has no specific code for manual external compression of an artery as a haemostatic first-aid manoeuvre; IZA.LA.AA (occlusion of artery, NEC) captures the functional goal of stopping arterial flow but implies a surgical/procedural occlusion rather than temporary manual pressure, making it a related concept rather than an equivalent or approximate match. |
| 426902005 (Atrial switch and arterial switch) | is related to | HIN.LJ.AA (Arterial switch operation) | The SNOMED concept describes the "double switch operation" — a combined atrial switch (Mustard/Senning) plus arterial switch (Jatene) procedure for congenitally corrected transposition of the great arteries; ICHI HIN.LJ.AA covers only the arterial switch component under the complex congenital great vessel malformation block, missing the atrial switch entirely, making it a related but not equivalent match. No single ICHI code represents the combined double switch procedure. |
| 173594000 (Attention to connection of esophagus) | is related to | KBA.LB.AA (Anastomosis of oesophagus) | The SNOMED concept refers to post-procedural attention/management of an existing esophageal anastomotic connection, while KBA.LB.AA denotes the act of surgically creating the esophageal anastomosis. No ICHI code exists for attending to or managing an established oesophageal anastomosis; KBA.LB.AA is the closest code in the same anatomical-procedural domain but represents a different phase of care. |
| 173972001 (Attention to connection of ileum) | is related to | KBK.MK.AA (Repair of small intestine, not elsewhere classified) | "Attention to connection of ileum" denotes post-operative care or revision of an existing ileal anastomosis, which most closely aligns with repair of the small intestine rather than creation of a new anastomosis; however, ICHI's "repair" action does not precisely capture the broader "attention to" concept (which may encompass assessment, adjustment, or routine stoma/anastomosis care), making this a related but not equivalent match. |
| 232918009 (Balloon dilation of implanted atrioventricular valve) | is related to | HDM.LG.AF (Percutaneous transluminal dilatation of congenitally malformed atrioventricular valve) | Both codes describe percutaneous transluminal dilatation of an atrioventricular valve, but the ICHI code specifically targets a congenitally malformed AV valve whereas the SNOMED concept targets an implanted (prosthetic) AV valve — a clinically distinct target population with no dedicated ICHI code for prosthetic AV valve balloon dilation. |
| 233092001 (Balloon dilation of left ventricular outflow tract) | is related to | HBB.LG.AF (Percutaneous transluminal balloon dilatation of right ventricular outflow tract) | ICHI contains a direct code for percutaneous transluminal balloon dilatation of the right ventricular outflow tract but has no corresponding code for the left ventricular outflow tract; the procedure technique and anatomical level (subvalvular outflow tract) are identical, but the laterality is opposite, making this a related but non-equivalent match. |
| 176317002 (Balloon dilation of prostate) | is related to | NAK.LG.AD (Transurethral endoscopic dilatation of bladder neck) | ICHI contains no code for dilation of the prostate itself; the prostate block (NGA) covers only incision, excision, destruction, drainage, and device insertion — not dilatation. NAK.LG.AD shares the same action axis (LG = dilatation), the same approach (AD = transurethral endoscopic), and targets the anatomically adjacent bladder neck, which is the structure that balloon dilation of the prostate most directly affects, but the target organ differs (bladder neck vs. prostate), making this a related rather than equivalent mapping. |
| 719901007 (Balloon dilation of stomach and duodenum using fluoroscopic guidance) | is related to | KBI.LG.AD (Endoscopic dilatation of duodenum) | The SNOMED concept specifies balloon dilation of both stomach and duodenum under fluoroscopic guidance, whereas KBI.LG.AD covers only endoscopic dilatation of the duodenum — the target is narrower (duodenum only, not stomach) and the means differs (endoscopic vs. fluoroscopic). No ICHI code captures fluoroscopy-guided gastroduodenal balloon dilation as a combined procedure, making this the closest available match but only relationally equivalent. |
| 310489004 (Care of hemodialysis equipment) | is related to | UA1.SM.ZZ (Management of products and technology, unspecified) | ICHI contains no code specific to hemodialysis equipment care or maintenance; UA1.SM.ZZ is the closest structural fit as it covers management-level interventions on technology/devices, but it is an extremely broad environmental-axis code that does not capture the clinical specificity of hemodialysis equipment care. The match is relational rather than semantically equivalent, as the SNOMED concept describes a technical/maintenance task on a specific medical device class while ICHI's code applies generically to any product or technology. |
| 228681009 (Cobalt 60 brachytherapy) | is related to | NGA.GA.BA (Destruction of lesion or tissue of the prostate by radiotherapy) | ICHI does not have a generic brachytherapy or isotope-specific radiotherapy code; all radiotherapy codes in ICHI are site-specific (action GA, means BA) and none encode Cobalt-60 brachytherapy as a modality without a defined body target. NGA.GA.BA is cited as a representative radiotherapy-by-destruction code but is only related, not equivalent, as it is both site-specific (prostate) and does not distinguish brachytherapy from external beam radiotherapy. |
| 133910006 (Conductance catheter method) | is related to | HT2.AB.AH (Other nonoperative cardiac and vascular measurements, not elsewhere classified) | The conductance catheter method is an invasive intracardiac technique for measuring ventricular volume and pressure-volume loops, which conceptually belongs to cardiac and vascular measurements; however, ICHI has no specific code for this method, and HT2.AB.AH is a residual "not elsewhere classified" category for cardiac/vascular measurements rather than a precise match. The SNOMED concept also names only the measurement method rather than a complete procedure, making a direct equivalence or wider/narrower mapping inappropriate. |
| 118626002 (Construction of interposition anastomosis) | is related to | IZA.LB.AA (Anastomosis of artery, not elsewhere classified) | The SNOMED concept is a body-system-agnostic procedure type describing the creation of a connection using an interposed segment (graft or conduit), applicable across vascular, GI, urinary, and other systems; ICHI has no generic cross-system anastomosis code and IZA.LB.AA captures only the vascular anastomosis action while omitting both the interposition technique and the broader multi-system scope. No closer ICHI code exists, making this a related-but-not-equivalent approximation. |
| 228660009 (Contact therapy) | is related to | LZZ.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue by radiotherapy, not elsewhere classified) | "Contact therapy" (plesiotherapy/contact radiotherapy) is a form of very short-distance radiation applied to superficial lesions, most characteristically skin, but the SNOMED concept is a modality category not restricted to a single body site. ICHI LZZ.GA.BA captures the radiotherapy destruction mechanism on skin/subcutaneous tissue, but it is a body-site-specific code and does not represent the modality in the abstract, making it related but not directly equivalent. |
| 423733006 (Continuous passive motion device monitoring) | is related to | MTB.AM.ZZ (Observation of joint mobility) | The SNOMED concept specifically describes monitoring a CPM device during passive joint mobilization therapy, while the ICHI code covers observation of joint mobility as a function without any reference to mechanical devices or passive modality. The concepts share the domain of joint mobility surveillance but differ substantially in that ICHI does not capture the device-centric or passive-motion-specific nature of the SNOMED concept. |
| 14201006 (Coronary angioplasty by open chest approach) | is related to | HIA.LG.AF (Percutaneous transluminal coronary angioplasty) | Both codes describe dilation/angioplasty of a coronary artery, but the SNOMED concept specifies an open chest (surgical) approach whereas the only ICHI angioplasty code available (HIA.LG.AF) encodes a percutaneous transluminal approach — a fundamentally different technique. No ICHI code for open-surgical coronary angioplasty exists, making this a related but non-equivalent mapping. |
| 10046006 (Cystoureterolithotomy) | is related to | NAI.JE.AA (Extraction of calculus from bladder) | Cystoureterolithotomy is a combined open removal of calculi from both bladder and ureter; NAI.JE.AA captures only the bladder component (cysto-) and a full mapping would also require NAE.JE.AA for the ureteric component, so a single-code assignment is structurally incomplete despite matching the open approach. |
| 10090001 (Periosteotomy of facial bone) | is related to | MAB.FA.AA (Osteotomy of facial bone, not elsewhere classified) | ICHI encodes osteotomy of facial bone (incision of the bone itself) but has no specific code for periosteotomy (incision through the periosteum overlying a facial bone); the two share the same body region and incision-type action but differ in target tissue (bone vs. periosteum). |
| 1300242003 (Disimpaction of fetal head using vaginal silicone balloon) | is related to | NMR.LD.AC (Rotation of fetus) | Both codes represent positional manipulation of the fetus (ICHI action axis LD = repositioning/correction of position, target = fetal/embryonic structure), but ICHI captures rotational correction of fetal presentation rather than the specific upward disimpaction of an engaged fetal head via a vaginal silicone balloon device during caesarean section. No ICHI code exists for fetal head elevation or disimpaction, and the vaginal balloon (fetal pillow) technique has no equivalent in ICHI, making this a related but non-equivalent match. |
| 53071007 (Embolectomy with catheter of subclavian artery by neck incision) | is related to | IBA.JE.AF (Endovascular extraction of obstruction from artery of head and neck) | This code captures the correct action (extraction of obstruction, i.e., embolectomy) from an artery in the head and neck region, which matches the subclavian artery accessed via a neck incision, but the means axis "AF" (endovascular) does not precisely match the open arteriotomy-with-catheter technique, and ICHI does not have a dedicated subclavian artery target or an open extraction-of-obstruction code for this territory. No closer ICHI category exists for catheter embolectomy of the subclavian artery. |
| 122463005 (Embolization procedure) | is related to | IZE.LA.AA (Occlusion of blood vessel, not elsewhere classified) | The SNOMED concept is a generic grouper for embolisation at any anatomical site and by any technique, whereas ICHI has no single site-neutral embolisation code — it distributes these procedures across many site-specific categories (e.g., IAA.LA.AF, IEA.LA.AF). IZE.LA.AA is the closest residual, capturing vascular occlusion generically, but it specifies an open approach (means AA) rather than the endovascular/catheter route inherent to embolisation, making it a related but not directly equivalent match. |
| 405410001 (Endarterectomy and angioplasty of neck artery) | is related to | IBA.JE.AA (Endarterectomy of artery of head and neck, open approach) | The SNOMED concept groups both endarterectomy and angioplasty of neck arteries into a single concept, whereas IBA.JE.AA covers only the endarterectomy component (though at the correct anatomical scope — extracranial artery of head and neck); no single ICHI code combines both actions, and the angioplasty component would require a separate code (IBA.LG.AF). The "open approach" qualifier in IBA.JE.AA also adds specificity not present in the SNOMED concept. |
| 133912003 (Fiberoptic catheter method) | is related to | AD (Per orifice endoscopic) | ICHI does not have a standalone code for the fiberoptic catheter as a technique; "Per orifice endoscopic" (AD) is the closest means-axis concept capturing the endoscopic, light-guided, flexible-scope character of fiberoptic catheter use, but it is a means/approach axis value rather than a full procedure code, and does not specifically denote the fiberoptic instrument itself. |
| 229835000 (Filing of a nail) | is related to | LBD.JG.AA (Debridement of nail, nail bed, or nail fold of finger) | ICHI has no code for nail filing specifically; the closest procedural concept is debridement of the nail, which shares the target (nail) and a mechanical-removal intent but is clinically broader (removal of devitalised tissue rather than surface shaping/smoothing) and site-specific to the finger rather than site-unspecified as in the SNOMED concept. |
| 1332561007 (Fluoroscopy guided balloon dilation of nephrostomy) | is related to | NAA.LI.AE (Percutaneous nephrostomy) | ICHI has no specific code for balloon dilatation of a nephrostomy tract; NAA.LI.AE (Percutaneous nephrostomy) shares the same target (kidney), percutaneous approach, and nephrostomy context, but refers to creation of a nephrostomy rather than fluoroscopy-guided balloon dilation of an existing tract. No dilatation action code (LG) exists in the kidney block (NAA), making this a related but semantically distinct match. |
| 444687007 (Fluoroscopy of catheter in situ) | is related to | IZE.BA.BA (Imaging of blood vessel, not elsewhere classified) | ICHI has no dedicated code for fluoroscopic catheter position checking; IZE.BA.BA covers general imaging of blood vessels (the most common anatomical context for in-situ catheters) but its scope is the vessel itself rather than verifying device placement, making it related but not semantically aligned with the SNOMED concept. |
| 228689006 (Gold 198 brachytherapy) | is related to | NGA.GA.BA (Destruction of lesion or tissue of the prostate by radiotherapy) | Au-198 (Gold-198) brachytherapy is almost exclusively performed as permanent seed implantation into the prostate, making NGA.GA.BA the closest clinical match; however, the SNOMED concept is site-agnostic and specifies a particular radioisotope/delivery modality (interstitial brachytherapy), while the ICHI code is restricted to the prostate and encompasses all radiotherapy methods (including external beam) without distinguishing brachytherapy. |
| 182757007 (Head/neck perfusion) | is related to | PMA.DB.AF (Isolated upper limb perfusion, not elsewhere classified) | ICHI encodes isolated regional perfusion only for upper and lower limbs (PMA.DB.AF and PNA.DB.AF); there is no dedicated head/neck perfusion code in ICHI, and the PAB block (Interventions on head or neck, not otherwise specified) contains no perfusion category. PMA.DB.AF represents the same procedural concept — isolated regional perfusion for locoregional drug delivery — but at a different anatomical target (upper limb rather than head/neck), making it related but not equivalent. |
| 80893007 (Hyperthermia generated by intracavitary probes) | is related to | PZA.SD.BQ (Warming of central body temperature) | Both concepts involve therapeutic elevation of body temperature (hyperthermy/hyperthermia), but the SNOMED concept specifically denotes a localized intracavitary probe-based delivery technique used primarily in oncology, whereas the ICHI code refers to non-specific whole-body central warming without capturing the intracavitary approach, the probe instrumentation, or the therapeutic indication. No more precise ICHI code for regional or intracavitary hyperthermia exists in the classification. |
| 182557005 (Immobilization by bandaging) | is related to | PZX.LC.AH (Application of cast or splint, not elsewhere classified) | ICHI's "Application of cast or splint, NEC" (action LC = Set, means AH = External) covers external immobilisation at an unspecified site, which is conceptually related to immobilisation by bandaging, but ICHI specifically names casts and splints (rigid/semi-rigid devices) rather than bandages (flexible wrap immobilisation), and does not capture the bandaging technique as the defining characteristic. No ICHI code precisely represents bandage-based immobilisation independent of body site or device type. |
| 446565007 (Implantation of intravitreal drug delivery system and removal of vitreous) | is related to | BCD.JK.AA (Vitrectomy) | BCD.JK.AA covers the vitreous removal (vitrectomy) component of this combined procedure but does not capture the defining element of implanting an intravitreal drug delivery system. ICHI lacks any code for intravitreal device/sustained-release implant insertion, making this a related but not equivalent match. |
| 1268722002 (Insertion of tooth supported radiographic dental implant stent) | is related to | KAE.LC.AC (Application of dental device) | ICHI has no specific code for a radiographic dental stent/surgical guide used in implant planning; "Application of dental device" (KAE.LC.AC) is the closest available category as both involve placing an external device on the teeth, but the ICHI code is a generic catch-all for dental device application and does not capture the radiographic/imaging purpose or implant-planning context of the SNOMED concept. |
| 68641000 (Insufflation) | is related to | KMA.LK.AE (Injection of air into peritoneal cavity) | "Insufflation" in SNOMED is a broad grouper covering all forms of gas/air introduction (peritoneal, fallopian tube, ear, etc.), while ICHI's only closely related code represents only peritoneal air injection — a single specific subtype. No generic ICHI insufflation code exists, making this a related-but-not-equivalent match at best. |
| 81097003 (Internal fetal monitor removal) | is related to | NMR.AI.AC (Internal fetal monitoring) | ICHI has no dedicated code for removal of an internal fetal monitor (e.g., fetal scalp electrode or intrauterine pressure catheter); NMR.AI.AC covers internal fetal monitoring as the closest intervention in the same fetal/embryonic target domain, but it describes the monitoring activity rather than the specific act of device removal. The action axis "removal of internal device" (JD) combined with the NMR target does not exist as an assignable ICHI category. |
| 113120007 (Interstitial brachytherapy) | is related to | NGA.GA.BA (Destruction of lesion or tissue of the prostate by radiotherapy) | ICHI does not have a site-agnostic code for interstitial brachytherapy as a technique; instead it encodes radiotherapy destruction by anatomical target (e.g., NGA.GA.BA for prostate), with "Brachytherapy seeds" and "Interstitial radioactive material" existing only as extension/means modifiers. NGA.GA.BA is the most commonly associated clinical context but is site-specific to the prostate, making it related rather than equivalent to the SNOMED concept which is technique-level and body-site-agnostic. |
| 399180008 (Interstitial radioactive colloid therapy) | is related to | EBA.GA.BE (Destruction of thyroid gland, using radioactive iodine) | ICHI does not have a code specifically for interstitial radioactive colloid therapy (unsealed source radionuclide instillation into tissue or body cavities); the only ICHI code explicitly encoding destruction via a radioactive substance (rather than external beam radiotherapy) is EBA.GA.BE, which is organ-specific (thyroid) and uses radioactive iodine rather than a colloid, making it related but not semantically equivalent. A closer mapping does not exist in ICHI, and the "Interstitial radioactive material" entry found in the classification appears only as an extension qualifier with no assignable standalone code. |
| 169403005 (Intracavitary radiochemotherapy) | is related to | NME.GA.BA (Destruction of lesion or tissue of uterus by radiotherapy) | ICHI has no code for combined intracavitary radiochemotherapy; the closest available code covers only the radiotherapy component at the most clinically typical target site (uterus), omitting both the concurrent chemotherapy modality and the intracavitary delivery specification. The two modalities (radiation and pharmacotherapy) are encoded separately in ICHI, and no composite or intracavitary-specific radiation code exists in the classification. |
| 232666000 (Jaw thrust) | is related to | JTB.ZY.ZY (Other interventions on respiration function, not elsewhere classified) | The jaw thrust is a manual airway maneuver that opens the upper airway to maintain respiratory function, but ICHI has no specific code for jaw thrust or manual airway opening techniques; the NEC residual category for interventions on respiration function is the closest available placeholder. The SNOMED concept is a highly specific manual technique while the ICHI code is a broad catch-all residual, making a precise equivalence impossible. |
| 257883005 (Lubrication) | is related to | LZZ.DB.AH (External application of substance or living organism to skin and subcutaneous tissue, not elsewhere classified) | SNOMED "Lubrication" is a generic procedural method concept (applying a lubricant to any surface or tissue) with no direct ICHI equivalent, and no site-specific ICHI lubrication code exists. LZZ.DB.AH is the best available approximation covering the most common clinical scenario (topical/external application of a substance to body surface), but it is site-specific to skin and does not capture lubrication of joints, eyes, or devices. |
| 171867002 (Maintenance of neurostimulator electrode in peripheral nerve) | is related to | BlockL4-ACA (Interventions on peripheral nervous system) | ICHI has no assignable code for neurostimulator electrode maintenance, programming, or adjustment in the peripheral nervous system — the nearest category codes cover insertion (ACA.DL.AA) or percutaneous replacement (ACA.KA.AE), neither of which captures the "maintenance" (ongoing check/reprogramming) concept. The block BlockL4-ACA is the most appropriate grouping, assigned as related because the SNOMED concept describes a specific post-implantation management activity that falls within the peripheral nervous system intervention scope but has no equivalent ICHI category. |
| 171495006 (Maintenance of neurostimulator in brain) | is related to | AAA.SC.BP (Stimulation of the brain using electric fields) | ICHI has no dedicated code for neurostimulator device management or programming in the brain — the brain interventions block (BlockL5-AAA) lacks an SN (management of internal device) action code analogous to HFC.SN.AA for pacemakers. AAA.SC.BP (Stimulation of the brain using electric fields) is in the same clinical domain as deep brain stimulation device maintenance but represents the therapeutic electrical stimulation act itself rather than the device check, programming, or follow-up management captured by the SNOMED concept. |
| 228720004 (Making of shielding block for radiotherapy) | is related to | UA1.SJ.ZZ (Manufacturing of products and technology, unspecified) | ICHI has no dedicated code for fabricating a radiotherapy shielding/beam-blocking device; UA1.SJ.ZZ covers the manufacturing of products and technology but sits in the environmental interventions chapter and carries no radiotherapy or clinical context, making it only relationally connected rather than semantically equivalent or hierarchically aligned with the SNOMED concept. |
| 228719005 (Making of template for radiotherapy) | is related to | PZB.TB.ZZ (Individualised planning) | ICHI contains no code for the fabrication or making of a radiotherapy template; the closest applicable concept is "Individualised planning" (PZB.TB.ZZ), which captures the patient-specific preparatory planning activity but is a broad whole-person administrative concept that does not reflect the physical device-making nature of the SNOMED procedure. The match is related in intent but not semantically equivalent. |
| 103712006 (Manipulation of catheter) | is related to | NAI.SN.AC (Management of internal device for urinary bladder) | ICHI lacks a body-site-agnostic "manipulation of catheter" code; NAI.SN.AC is the most structurally aligned assignable category, covering management of an internal device (catheter) within the urinary bladder, but it is restricted to a single anatomical site whereas the SNOMED concept applies to catheters in any location. The relationship is directionally related but neither equivalent nor a clean broader/narrower match due to the site specificity mismatch. |
| 426008007 (Noncontact normothermic wound therapy) | is related to | LZZ.SC.AH (Phototherapy to skin and subcutaneous cell tissue, not elsewhere classified) | Noncontact normothermic wound therapy delivers radiant infrared energy externally to a wound without contact, which aligns most closely with the SC (photothermal/radiant energy) action axis applied externally (AH) to skin/subcutaneous tissue in the NEC integumentary category. However, ICHI has no specific code for localized thermal wound therapy, and LZZ.SC.AH is primarily oriented toward phototherapy for skin conditions rather than wound healing per se, making this a related rather than equivalent match. |
| 10012005 (Expression) | is related to | JB (Drainage) | "Expression" in SNOMED describes a generic manual squeezing/pressing technique to extract contents from body structures, which most closely aligns with ICHI's Drainage action axis (JB) — both involve removing fluid or contents from a structure. However, ICHI has no dedicated code for expression as a standalone generic technique, and all ICHI drainage codes are body-part-specific assignable categories, making this a related-but-not-equivalent mapping at the axis level only. |
| 234727004 (Occlusal rehabilitation) | is related to | KAE.MK.AC (Restoration of tooth) | ICHI lacks any code for occlusal rehabilitation, full mouth reconstruction, or bite correction; "Restoration of tooth" is the closest dental procedure code in the teeth interventions block (KAE), but it addresses single-tooth restoration rather than the comprehensive, functional, multi-tooth rehabilitative process that occlusal rehabilitation entails. The relationship is topically related but semantically distinct in scope and intent. |
| 426629002 (Percutaneous transluminal replacement of subcutaneous port) | is related to | HZZ.KA.AE (Replacement of subcutaneous device for intracardiac or great vessel haemodynamic monitoring) | Both codes describe percutaneous replacement of a subcutaneous implanted device in the circulatory system, but HZZ.KA.AE is specifically scoped to haemodynamic monitoring devices (e.g., implantable loop recorders) rather than totally implantable venous access ports (port-a-caths); ICHI has no dedicated code for venous access port replacement, making this the structurally closest but functionally divergent option. |
| 228691003 (Phosphorus 32 brachytherapy) | is related to | PZA.GA.BA (Total body irradiation) | ICHI organises radiotherapy destruction codes by specific body site and has no site-unspecified or general brachytherapy/radionuclide brachytherapy assignable code; "Brachytherapy seeds" and "Interstitial radioactive material" exist only as unassigned extension/means codes. PZA.GA.BA is the only destruction-by-radiotherapy code using an unspecified/comprehensive topography target, but its title "Total body irradiation" denotes a distinct technique that is semantically different from the localised internal-source brachytherapy described by the SNOMED concept. |
| 1230191000 (Preparation of personal care products) | is related to | UAD.SJ.ZZ (Manufacturing of products and technology for personal use in daily living) | The SNOMED concept describes preparing (making ready) personal care products, which relates to the ICHI concept of manufacturing/producing products and technology for personal use in daily living, but ICHI frames this as industrial/population-level manufacturing rather than individual preparation of personal care items. No ICHI code directly captures the specific act of readying personal hygiene or care products for use, making this a related-but-not-equivalent mapping. |
| 32626001 (Provision of external compensating shield) | is related to | UBR.RD.ZZ (Providing goods in relation to radiation) | ICHI has no code for the clinical act of fitting or applying a radiation therapy compensating/shielding device to a patient; the only remotely related concept is "Providing goods in relation to radiation" (UBR.RD.ZZ), which belongs to the public-health environmental-intervention chapter rather than clinical radiotherapy, making it only tangentially related. |
| 700357007 (Radium 223 brachytherapy) | is related to | NGA.GA.BA (Destruction of lesion or tissue of the prostate by radiotherapy) | ICHI has no code for systemic radionuclide therapy or Ra-223 administration; Ra-223 is given intravenously for bone metastases (predominantly from prostate cancer) and works by internal alpha emission, which is functionally related to radiotherapy-based tissue destruction but is neither site-limited to the prostate nor a localised brachytherapy implant. NGA.GA.BA is the closest assignable ICHI code by clinical context, but the SNOMED concept describes a systemic targeted radionuclide treatment not captured anywhere in ICHI's current classification. |
| 169327006 (Radium contact therapy) | is related to | LZZ.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue by radiotherapy, not elsewhere classified) | Radium contact (surface) therapy is a brachytherapy technique where a radium source is applied directly to superficial tissue, most commonly skin; ICHI lacks a modality-based or technique-based brachytherapy code and instead organises radiotherapy by body target, making this NEC skin radiotherapy residual code the closest available approximation, but the match is fundamentally imprecise since the SNOMED concept is technique-defined and site-agnostic. |
| 420227002 (Recommendation to) | is related to | VFZ.ZZ.ZZ (Interventions on health-related behaviours, unspecified) | "Recommendation to" is an abstract SNOMED grouper for any clinical recommendation act, which has no direct structural equivalent in ICHI; the closest available code covers unspecified interventions on health-related behaviours, but ICHI encodes advisory/guidance acts as specific counselling (PP action) codes tied to particular targets, making this a related-but-not-equivalent mapping. |
| 51835002 (Removal of electrodes of bone growth stimulator) | is related to | MDB.JD.AA (Removal of internal device or foreign body from bone of shoulder region) | ICHI has bone growth stimulator codes only for placement (MDB.DN.AH) within a shoulder-region-specific block, with no site-unspecified bone growth stimulator removal code; MDB.JD.AA is the closest structural analog but is anatomically restricted to the shoulder and does not name the bone growth stimulator specifically. |
| 128408009 (Removal of electronic monitor device) | is related to | HZZ.JD.AE (Percutaneous removal of internal device or foreign body from heart, not elsewhere classified) | Electronic monitor devices (e.g., implantable loop recorders) are most commonly cardiac subcutaneous devices, and HZZ.JD.AE captures percutaneous removal of a non-pacemaker cardiac internal device via NEC; however, the SNOMED concept is broader as it could apply to non-cardiac electronic monitors. |
| 61027002 (Removal of fetal structures) | is related to | NME.JB.AC (Suction curettage of uterus) | ICHI does not have a generic "removal of fetal structures" code; the NMR block covers interventions on fetal/embryonic structures but contains no removal-of-fetal-contents code, while NME.JB.AC is the closest procedural concept — however it specifies both the approach (suction) and target organ (uterus). |
| 177753009 (Removal of plomb) | is related to | JCA.JD.AA (Removal of internal device or foreign body from pleura) | Extrapleural plombage (lucite balls, oil, or other material placed in the extrapleural space for lung collapse in historical TB surgery) is anatomically adjacent to but outside the pleural membrane; JCA.JD.AA is the closest available ICHI code as there is no dedicated extrapleural or plombage removal code. |
| 64087001 (Repair of branchial cleft fistula or cyst) | is related to | LAA.JI.AA (Local excision of skin and subcutaneous cell tissue of head or neck) | ICHI has no dedicated code for branchial cleft fistula or cyst surgery; the standard surgical management (excision of the cyst or tract) most closely maps to local excision of skin and subcutaneous tissue of the head or neck, but the ICHI code captures neither the congenital anomaly nature nor the fistula-closure component. |
| 1287918007 (Repair of cardiac pacemaker pocket) | is related to | HFC.SN.AA (Management of pacemaker or defibrillator system) | ICHI has no specific code for pacemaker pocket repair (a wound/tissue procedure over the generator); the closest available code covers general management of the pacemaker or defibrillator system, a related but substantially broader concept that does not specifically address the soft-tissue pocket wound. |
| 439909009 (Repair of central venous access catheter) | is related to | IZD.SN.AF (Maintaining intravenous access) | ICHI contains no code specifically for repairing a central venous catheter; the nearest concept is maintaining intravenous access, which shares the goal of preserving vascular access but does not describe a repair procedure and is targeted at peripheral IV rather than central venous catheters specifically. |
| 372455009 (Repair of genital tract laceration) | is related to | NMH.MK.AA (Repair of vagina) | The SNOMED concept covers laceration repair across the entire female genital tract (vulva, vagina, cervix, uterus), whereas NMH.MK.AA is limited to the vagina specifically; no single ICHI code covers the full genital tract scope, so the best available code is related but anatomically narrower and cause-unspecified. |
| 50171005 (Replacement of electronic ureteral stimulator) | is related to | NAE.DN.AA (Implantation of electronic ureteral stimulator) | ICHI has only an implantation code for ureteral stimulator (action axis DN) and no replacement-specific code (action axis KA) for this device; the implantation code is the closest match but captures a distinct clinical action rather than replacement of an existing device. |
| 235562003 (Repositioning of bile duct prosthesis) | is related to | KCM.KA.AD (Replacement of device in biliary duct) | ICHI KCM.KA.AD covers replacement of a device in the biliary duct, which is closely related but semantically distinct from repositioning the same prosthesis (adjusting its position without exchanging it); there is no dedicated LD-action (repositioning) code for the bile duct target in ICHI. |
| 440364001 (Repositioning of gastric feeding tube via duodenum) | is related to | KBF.SN.AA (Adjustment of internal device of stomach via laparotomy) | ICHI encodes adjustment of internal stomach devices and endoscopic repositioning of the stomach itself, but there is no specific code for repositioning a gastric feeding tube through the duodenum; KBF.SN.AA is the closest conceptual match as it covers manipulation of a device placed in the stomach, though the approach and specificity differ significantly. |
| 448591002 (Repositioning of Tenckhoff catheter) | is related to | KMA.DN.AE (Percutaneous implantation of internal device of peritoneal cavity) | A Tenckhoff catheter is a peritoneal dialysis catheter placed in the peritoneal cavity, and KMA.DN.AE covers percutaneous implantation of devices there; however, ICHI has no specific code for repositioning (as opposed to initial insertion) of this catheter, so the match is related but not equivalent in action or intent. |
| 88791000 (Simple repair of wounds of extremities) | is related to | LAE.MK.AA (Repair of skin and subcutaneous cell tissue of upper limb) | No single ICHI code covers repair across all extremities; the closest individual codes are LAE.MK.AA (upper limb) and LAG.MK.AA (lower limb). The ICHI code is also broader than "simple repair of wounds" — "extremities" spans both limbs requiring two separate ICHI codes. |
| 440461005 (Skin ulcer care) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | ICHI has no dedicated "skin ulcer care" code; the concept encompasses a bundle of activities (cleansing, debridement, dressing, assessment) with no single exact match. Application of dressing is the most characteristic component, but the ICHI code covers only one element of the broader SNOMED concept. |
| 387821004 (Spinal deformity correction) | is related to | MBZ.FA.AA (Osteotomy of spine, not elsewhere classified) | ICHI encodes spinal procedures by specific action and anatomical site but has no single code for "spinal deformity correction" as a generic procedure — correction may involve osteotomy, fusion, instrumentation, or reconstruction. Osteotomy of the spine is the most representative action, but the mapping is approximate. |
| 232163009 (Suction clearance of external auditory canal) | is related to | CAE.JA.AC (Irrigation of external auditory canal) | Both procedures clear the external auditory canal but the mechanism differs — suction uses negative pressure aspiration whereas irrigation uses fluid flushing; ICHI has no specific suction/aspiration code for the external auditory canal. |
| 234745004 (Take oral or dental impression) | is related to | KAE.LC.AC (Application of dental device) | ICHI contains no specific code for taking a dental impression; the closest related code is KAE.LC.AC (Application of dental device), which covers dental appliance application and overlaps with impression-taking as a preparatory step, but the procedures are distinct. |
| 73354002 (Thrombectomy with catheter of brachial artery by arm incision) | is related to | IZE.JE.AA (Extraction of obstruction of blood vessel, not elsewhere classified) | ICHI has no open-approach "extraction of obstruction" code specific to arteries of the upper limb — only endarterectomy (a semantically different procedure) or endovascular extraction. The NEC code IZE.JE.AA correctly captures the open thrombectomy action but loses all anatomical specificity. |
| 63586007 (Thrombectomy with catheter of celiac artery by abdominal incision) | is related to | IZE.JE.AA (Extraction of obstruction of blood vessel, not elsewhere classified) | ICHI has no open-approach extraction of obstruction code for abdominal arteries specifically — only endovascular and endarterectomy options exist for this region. The NEC code IZE.JE.AA captures the correct procedure action (open thrombectomy) but provides no anatomical specificity. |
| 20492004 (Thrombectomy with catheter of femoropopliteal artery by leg incision) | is related to | IZE.JE.AA (Extraction of obstruction of blood vessel, not elsewhere classified) | ICHI has no open-approach "extraction of obstruction" code for arteries of the lower limb — only endarterectomy and endovascular extraction exist for this region. The NEC code IZE.JE.AA correctly captures the open thrombectomy action but provides no information about the femoropopliteal location or leg incision approach. |
| 85290004 (Thrombectomy with catheter of iliac vein by abdominal incision) | is related to | IED.FA.AA (Incision of abdominal or pelvic vein) | ICHI has no dedicated "extraction of obstruction" (thrombectomy) code under the abdominal/pelvic vein block; the closest available code captures the open abdominal incision approach to an abdominal/pelvic vein (which includes the iliac vein) but describes the incision action rather than thrombus extraction specifically. |
| 64227008 (Thrombectomy with catheter of iliac vein by leg incision) | is related to | IED.FA.AA (Incision of abdominal or pelvic vein) | ICHI lacks a thrombectomy/extraction-of-obstruction code for abdominal or pelvic veins; IED.FA.AA is the closest open surgical code for this vessel group, but it does not capture the thrombectomy action or the leg incision approach. |
| 76681003 (Thrombectomy with catheter of innominate artery by arm incision) | is related to | ICA.JE.AA (Endarterectomy of artery of upper limb) | The innominate (brachiocephalic) artery is accessed via an arm incision in this SNOMED concept, placing the surgical approach in the upper limb territory; ICA.JE.AA captures an open arterial obstruction-extraction at an upper limb vessel, but endarterectomy is not identical to catheter thrombectomy and the innominate trunk is anatomically a thoracic great vessel. |
| 72173001 (Thrombectomy with catheter of innominate artery by neck incision) | is related to | IBA.JE.AA (Endarterectomy of artery of head and neck, open approach) | The neck incision approach places this procedure in the head-and-neck vessel territory, and IBA.JE.AA captures open surgical extraction of obstruction from a head/neck artery; however, the innominate (brachiocephalic) trunk is a great vessel originating from the aortic arch rather than a true head-and-neck artery. |
| 60385006 (Thrombectomy with catheter of ulnar artery by arm incision) | is related to | ICA.JE.AA (Endarterectomy of artery of upper limb) | ICHI has no dedicated thrombectomy code for arteries of the upper limb — ICA.JE.AA (endarterectomy, open) is the closest open surgical code targeting the upper limb artery group, but endarterectomy denotes plaque removal rather than catheter thrombectomy, making this only a related concept. |
| 302452002 (Transcatheter instillation of substance into pleural cavity) | is related to | JCA.GA.AE (Pleurodesis using percutaneous administration of agent) | ICHI contains no code for general instillation of substance into the pleural cavity; the closest available code is JCA.GA.AE, which shares the percutaneous/transcatheter route of substance delivery into the pleural space but is semantically restricted to the specific purpose of pleurodesis. |
| 225358003 (Wound care) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | ICHI has no single "wound care" category; the SNOMED concept encompasses a bundle of acts (cleansing, assessment, debridement, dressing), so no single ICHI code is equivalent. Dressing application is the most prototypical wound care act, making this the closest related code. |
| 386503004 (Acid-base management: metabolic alkalosis) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | Metabolic alkalosis is primarily a disturbance of electrolyte and acid-base homeostasis; ICHI has no code for active correction of metabolic alkalosis, and the closest available code covers assessment of water/mineral/electrolyte balance (ETE.AA.ZZ) rather than active management. The relationship is related but not equivalent, as the SNOMED concept implies active treatment/management rather than assessment. |
| 386504005 (Acid-base management: respiratory acidosis) | is related to | JTB.DE.AC (Artificial ventilation) | Respiratory acidosis management centers on correcting alveolar hypoventilation, most commonly through assisted or artificial ventilation; JTB.DE.AC (Artificial ventilation) captures the primary intervention used, but it does not represent the full concept of "acid-base management" for respiratory acidosis, which may also include non-ventilatory measures. The mapping is relatedto because artificial ventilation is the key intervention but the SNOMED concept is the broader management strategy, not just the ventilation act. |
| 394830001 (Action plan (community)) | is related to | UEP.TB.ZZ (Planning in relation to health services, systems and policies) | No ICHI code exists specifically for a community-level health action plan; UEP.TB.ZZ represents planning at the health services and systems level, which is the closest structural equivalent to a community-directed health action plan, but it is scoped to health services infrastructure rather than a discrete community action plan document or process, making it a related but inexact match. |
| 386507003 (Active listening) | is related to | SAD.PN.ZZ (Advising about listening) | ICHI has a dedicated "Listening" target axis (SAD) with several action codes, but none specifically encodes "active listening" as a clinical technique; the closest is advising/counselling about listening rather than the practitioner performing active listening as a therapeutic act. The concept is more a communication skill embedded in other interventions than a standalone ICHI intervention. |
| 370864003 (Activity care) | is related to | VEB.RG.ZZ (Providing services in relation to physical activity behaviours) | "Activity care" in SNOMED refers to nursing/rehabilitation support for a patient's participation in activities of daily living, which does not map cleanly to any single ICHI category; the closest domain is the physical activity behaviours block (VEB), but providing services there targets population-level behaviour change rather than individual patient activity care. |
| 447986006 (Acute normovolemic hemodilution) | is related to | DIA.JH.AF (Collection of blood or blood products) | Acute normovolemic hemodilution involves withdrawing blood preoperatively, replacing it with crystalloid/colloid to maintain normovolemia, then reinfusing the blood — ICHI has no dedicated code for this combined procedure, and the closest relevant action is DIA.JH.AF (collection of blood or blood products), which captures only the withdrawal phase and misses the volume replacement and reinfusion components. |
| 119963004 (Adenoid destructive procedure) | is related to | DAB.JI.AC (Local excision of lesion of adenoid) | ICHI has no dedicated destruction code for adenoids (ablation, cautery, cryotherapy are not represented); DAB.JI.AC (local excision of lesion of adenoid) is the closest available code that represents a partial/targeted adenoid intervention short of full adenoidectomy, but it is framed as excision rather than destruction and may not fully capture non-surgical destructive techniques. |
| 234867008 (Adjust rapid maxillary expansion appliance) | is related to | KAE.SM.AC (Management of external appliance of tooth) | A rapid maxillary expansion appliance is a tooth-anchored orthodontic device, so KAE.SM.AC (management of external appliance of tooth) is the closest available code; however, the SNOMED concept specifically concerns activation/adjustment of a palatal expander device rather than general management of a tooth appliance, making this a related rather than equivalent match. |
| 231040004 (Adjustment of neurostimulator electrode on spinal nerve root) | is related to | ABN.KA.AE (Percutaneous replacement of spinal nerve device) | ICHI has no dedicated "adjustment" action for a neurostimulator electrode at the spinal nerve root; the closest available code covers percutaneous replacement of a spinal nerve device, which overlaps in target and approach but describes replacement rather than electrode repositioning or parameter adjustment. ABN.SC.BP (Stimulation of spinal nerve) was also considered but describes the therapeutic act itself, not the hardware management procedure. |
| 239696009 (Adjustment of plaster cast) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | ICHI does not have a dedicated "adjustment of cast" code; the closest concept covers replacement of an external immobilisation device at an unspecified site, which captures the same clinical context (managing an applied external immobiliser) but implies replacement rather than adjustment (e.g., wedging, trimming, or bivalving a cast). PZX.LC.AH (Application of cast or splint, NEC) was also considered but represents the initial application rather than a subsequent adjustment. |
| 708801005 (Adjustment of urethral catheter) | is related to | NAI.KA.AC (Replacement of indwelling urinary catheter) | ICHI contains no code for adjusting the position or settings of a urethral catheter; the nearest available code is replacement of an indwelling urinary catheter, which shares the target organ and device type but represents a more extensive intervention than a simple positional or drainage adjustment. |
| 239662002 (Adjustment to positioning of traction system) | is related to | PZX.LD.ZZ (Positioning of a part of the body, not elsewhere classified) | No ICHI code directly addresses adjusting a traction system's positioning; the best available approximation is the generic "positioning of a part of the body, NEC" code, which captures the repositioning/alignment intent but is substantially broader and does not specify traction as the mechanism. |
| 265147001 (Adjustment to skeletal traction of bone) | is related to | MBZ.LC.AE (Direct or skeletal traction to the spine) | ICHI has only one skeletal traction category code (MBZ.LC.AE), which is restricted to the spine and encodes the application (action LC = Set) of traction rather than an adjustment to existing traction; the SNOMED concept refers to any bone (not just spine) and specifically to an adjustment activity, making this a related but not equivalent match. |
| 305322003 (Admission by health care assistant) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no code for the administrative act of hospital admission; "Referral to health provider" is the nearest functional concept, covering the initiation of a patient's engagement with a health service. The professional role (health care assistant) is not distinguishable within ICHI coding. |
| 305323008 (Admission by midwife) | is related to | UEP.TI.ZZ (Referral to health provider) | As with other admission-by-role SNOMED concepts, ICHI has no code for hospital admission; "Referral to health provider" is the closest available concept. The specific professional role (midwife) is not captured in ICHI coding. |
| 305326000 (Admission by nurse) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not represent the administrative act of inpatient admission or distinguish who performs it; "Referral to health provider" is the nearest related concept, capturing the act of directing a patient into care. |
| 305260005 (Admission by physician) | is related to | UEP.TI.ZZ (Referral to health provider) | The SNOMED concept describes a physician-initiated inpatient admission, an administrative care transition not represented in ICHI; "Referral to health provider" is the closest related intervention concept available, though it is broader and does not specify inpatient admission. |
| 177079006 (Admission review) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI has no code for an admission review as a distinct clinical activity; "Health management encounter, unspecified" (PZB.ZZ.ZZ) is the closest conceptual neighbour, covering encounters focused on coordinating or managing a person's care, but it is far broader and does not specifically denote a review of the grounds or appropriateness of admission. |
| 370880008 (Adult day center management) | is related to | PZB.TD.ZZ (Case coordination) | "Adult day centre management" in a clinical context refers to the administrative and clinical oversight of a patient's ongoing programme at a day centre, which is most closely related to ICHI's case coordination code; however, ICHI case coordination does not encode the day-centre setting or the management/administrative dimension explicitly, making this a related rather than equivalent match. |
| 308425003 (Adult health screening recall) | is related to | VDB.AA.ZZ (Assessment of screening behaviours) | A "screening recall" is an administrative act of inviting or reminding a patient to attend a screening programme, which sits within the domain of health-service-related screening behaviours; VDB.AA.ZZ (Assessment of screening behaviours) is the closest ICHI concept in the relevant block, but ICHI does not have a code specifically representing a recall/invitation action, making this a related rather than equivalent mapping. |
| 719962002 (Advance care planning decisions shared with out of hours service) | is related to | PZB.TB.ZZ (Individualised planning) | Advance care planning is an individualised whole-person planning activity, and PZB.TB.ZZ (Individualised planning) is the nearest ICHI concept; however, the SNOMED concept specifically encodes the act of communicating/sharing decisions with an out-of-hours service, a level of specificity (communication act, recipient service type) that ICHI does not represent, making this only a related match. |
| 185100004 (Adverse drug reaction notification) | is related to | UAC.VF.ZZ (Alert concerning medications) | UAC.VF.ZZ covers issuing an alert in relation to medications, which shares the safety-signalling intent of an adverse drug reaction notification, but "alert" is a public-health/environmental action axis concept rather than a formal pharmacovigilance notification to a regulatory authority; the match is related but not semantically equivalent. |
| 385797002 (Adverse drug reaction prevention) | is related to | UAC.TB.ZZ (Planning in relation to medications) | ICHI has no code specifically for preventing adverse drug reactions; UAC.TB.ZZ (Planning in relation to medications) is the closest available concept under the medicaments block, capturing structured planning activity around medications, but it does not specifically encode prevention of adverse reactions. The match is associative rather than semantically equivalent. |
| 413467001 (Aftercare) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | "Aftercare" is a broad administrative/organisational concept covering post-treatment follow-up that has no direct ICHI equivalent; PZB.ZY.ZY under "Interventions on whole person" is the most fitting residual category for a health encounter that does not fit a specific therapeutic intervention, though it is wider in scope and not purpose-specific to post-procedure care. |
| 225977007 (Alleviating anxiety) | is related to | AUD.RC.ZZ (Emotional support for emotional functions) | ICHI has no concept for "alleviating anxiety" as a standalone intervention; emotional support for emotional functions is the closest match since anxiety is an emotional function and emotional support is the primary means of alleviating it, but the ICHI code is generic across all emotional functions rather than anxiety-specific. |
| 169572002 (Antenatal care categorized by gravida number) | is related to | NUE.AA.ZZ (Assessment of functions related to pregnancy) | NUE.AA.ZZ is the closest available pregnancy-functions code but describes a generic assessment action rather than a structured care episode stratified by gravida number. |
| 609442008 (Antenatal care for woman with history of recurrent miscarriage) | is related to | NUE.AA.ZZ (Assessment of functions related to pregnancy) | NUE.AA.ZZ is the closest pregnancy-functions code, but ICHI does not represent risk-stratified antenatal care pathways or care indicated by a history of recurrent miscarriage. |
| 232850000 (Aortoventriculoplasty) | is related to | HBA.LI.AA (Creation of conduit between left ventricle and aorta) | Aortoventriculoplasty (e.g. Konno) enlarges the LVOT and aortic annulus rather than simply creating a conduit; HBA.LI.AA is the closest ICHI code at this anatomical interface but the procedural intent differs. |
| 38491000 (Apnea monitor removal) | is related to | JTB.AI.ZZ (Monitoring of respiration function) | ICHI has no code for removal of a respiratory monitoring device; the closest thematic anchor is monitoring of respiration function, but it represents the monitoring activity itself rather than device removal. |
| 312040009 (Application for social services funding) | is related to | UEN.RG.ZZ (Providing social security services, systems and policies) | UEN.RG.ZZ describes delivery of social security services rather than the act of applying for funding; the SNOMED concept captures a patient-initiated administrative request, making this related but non-equivalent. |
| 179210002 (Application of balanced suspension traction) | is related to | MBZ.LC.AE (Direct or skeletal traction to the spine) | Balanced suspension traction is most commonly applied to a lower limb fracture, yet ICHI's only explicit non-extraction traction code targets the spine; no ICHI code for limb traction exists, making this a related but imprecise match. |
| 372045002 (Application of chemical hemostatic agents) | is related to | PZA.DB.AH (Topical application of pharmacotherapy) | Chemical haemostatics are pharmacological agents applied topically; ICHI has no haemostasis-specific code, so topical pharmacotherapy is the closest structural match but does not encode the haemostatic purpose. |
| 79444008 (Application of halo type body cast) | is related to | MBA.LC.AH (Application of cervical external immobilisation device) | A halo body cast immobilises the cervical spine via a rigid vest connected to a skull halo ring; MBA.LC.AH does not capture the body/trunk component of the construct, making this related but inexact. |
| 238294008 (Application of hemostatic agent to peritoneal cavity) | is related to | KMA.DB.AE (Injection into peritoneum and peritoneal cavity) | KMA.DB.AE represents percutaneous injection into the peritoneal cavity; "injection" implies a needle route and does not capture direct surgical application (e.g. intraoperative packing or topical spray), making this related but not equivalent. |
| 303889001 (Application of Pugh's traction) | is related to | PZX.LC.AH (Application of cast or splint, not elsewhere classified) | ICHI has no lower-limb skin traction code; the only traction codes present are for spinal traction (MBZ.LC.AE) and skull halo devices (MAA.DL.AA), neither of which applies. PZX.LC.AH captures a musculoskeletal external fixation/immobilisation action applied non-specifically, which is only distantly related to Pugh's skin traction of the lower limb. |
| 302488007 (Application of traction using a traction device) | is related to | PZX.LC.AH (Application of cast or splint, not elsewhere classified) | ICHI has no generic code for application of traction using a traction device across all body sites; available traction codes are site-specific (spine, skull halo) and do not match the generic SNOMED concept. The NEC cast/splint code is the closest non-specific external immobilisation code but is only relatedly equivalent, as traction and casting/splinting are distinct mechanisms. |
| 442410008 (Application of venous foot pump) | is related to | PND.LC.AH (Application of external immobilisation device to foot) | ICHI has no code specifically for a venous foot pump (an intermittent pneumatic compression device used for DVT prophylaxis); PND.LC.AH covers application of an external immobilisation device to the foot, which shares the foot target and the non-invasive device application action but does not capture the venous/haemodynamic function of a foot pump. |
| 182748001 (Arteriovenous cannulation for blood treatment) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | Both concepts involve an arteriovenous circuit for an extracorporeal purpose, but the SNOMED concept describes the specific act of cannulating an AV access for blood treatment (e.g., dialysis), whereas IZA.SN.AF describes ongoing management of an AV shunt and does not specifically encode the cannulation act or the blood treatment purpose. |
| 786452006 (Arteriovenous extracorporeal membrane oxygenation) | is related to | PSA.DD.AF (Cardiopulmonary bypass) | ECMO and cardiopulmonary bypass are both extracorporeal circulatory support modalities using arterial and venous cannulation, but they differ in purpose, duration, and circuit configuration; ICHI has no dedicated ECMO code, making PSA.DD.AF the closest available code in the same clinical domain. |
| 7634006 (Arthrectomy of spine) | is related to | MRJ.JJ.AA (Partial excision of joint of unspecified site) | Arthrectomy means excision of a joint, and MRJ.JJ.AA encodes partial excision of a joint; however, ICHI has no specific spinal joint (zygapophyseal/facet joint) excision code, so the unspecified-site joint code must be used, losing the anatomical specificity of the SNOMED concept. |
| 441470002 (Arthroscopic matrix-induced autologous chondrocyte implantation of joint) | is related to | MMC.KD.AB (Arthroscopic transplantation of chondrocyte cells of knee joint) | ICHI has no joint-agnostic code for arthroscopic chondrocyte implantation; codes exist only for specific joints (elbow, wrist, knee, ankle). MMC.KD.AB is representative of the technique (arthroscopic chondrocyte transplantation) but adds the knee-joint specificity not present in the SNOMED concept, and ICHI does not encode the MACI-specific matrix-induction detail. |
| 178107009 (Aspiration of ganglion - foot) | is related to | MOJ.JB.AE (Percutaneous drainage of joint of foot or toe) | A ganglion cyst is a peri-articular soft tissue cyst (arising from joint capsule or tendon sheath), not an intra-articular collection, so percutaneous drainage of the joint of foot or toe is related but not semantically equivalent. ICHI lacks a dedicated code for percutaneous aspiration of a ganglion cyst, making this the closest anatomically anchored code available. |
| 178103008 (Aspiration of ganglion - hand) | is related to | MGJ.JB.AE (Percutaneous drainage of finger or hand joint) | A ganglion cyst at the hand is a peri-articular soft tissue cyst, not an intra-articular fluid collection, so this joint drainage code covers a different (though adjacent) anatomical compartment. It is the closest available ICHI code for a percutaneous aspiration procedure at the hand, but represents a related rather than equivalent match. |
| 178105001 (Aspiration of ganglion - knee) | is related to | MMJ.JB.AE (Percutaneous drainage of knee joint) | A knee ganglion cyst is a soft tissue structure adjacent to the knee joint rather than fluid within the joint cavity itself; the ICHI code for percutaneous drainage of the knee joint is the nearest anatomical match but is not semantically equivalent. ICHI has no specific code for ganglion cyst aspiration at any site. |
| 178102003 (Aspiration of ganglion - wrist) | is related to | MFJ.JB.AE (Percutaneous drainage of wrist joint) | Wrist ganglion cysts are the most common ganglion site and arise from the wrist joint capsule or tendon sheath — still a peri-articular soft tissue cyst rather than an intra-articular collection. The wrist joint drainage code is the closest ICHI match anatomically, but differs in the target tissue compartment. |
| 390813006 (Assertive outreach in mental health care) | is related to | PZB.TD.ZZ (Case coordination) | ICHI has no specific code for assertive outreach (an intensive community-based team approach to engaging people with severe mental illness). PZB.TD.ZZ (Case coordination) is the closest available concept, capturing the coordinated, proactive care management dimension of assertive outreach, but it does not reflect the community/outreach or mental-health-specific nature of the SNOMED concept. |
| 713133005 (Assessment following possible exposure to contagion) | is related to | PZB.VC.ZZ (Infectious disease contact tracing) | PZB.VC.ZZ (Infectious disease contact tracing) is the closest ICHI code, as both concepts involve identifying and assessing individuals in relation to an infectious exposure. However, the SNOMED concept focuses on clinical assessment of an individual after a possible exposure, while the ICHI code primarily represents the public health activity of tracing contacts, making this a related but not equivalent match. |
| 840297006 (Assessment of patient reported outcome measures) | is related to | PZB.AN.ZZ (Interview in relation to the whole person) | Patient-reported outcome measures (PROMs) are typically captured via structured interview or questionnaire directed at the whole person's experience; PZB.AN.ZZ is the nearest ICHI code in scope, but it does not specifically encode the PROM construct, making this a related rather than equivalent mapping. |
| 1148823006 (Assessment of progress toward goals to achieve adequate housing) | is related to | UEE.AA.ZZ (Assessment of housing services, systems and policies) | UEE.AA.ZZ is the best available housing-related assessment code in ICHI, but it targets housing services, systems, and policies at a population or system level, whereas the SNOMED concept concerns an individual patient's progress toward a personal goal of securing adequate housing. The conceptual framing is meaningfully different. |
| 1148812007 (Assessment of progress toward goals to achieve housing security) | is related to | UEE.AA.ZZ (Assessment of housing services, systems and policies) | UEE.AA.ZZ is the closest housing-related assessment in ICHI, but it is oriented toward system-level housing services rather than tracking an individual patient's goal progress for housing security. The two concepts are related but not equivalent. |
| 710562003 (Assessment of sanitation) | is related to | UEU.AA.ZZ (Assessment of sewerage services, systems and policies) | "Sanitation" in public health encompasses waste disposal, sewerage, and related infrastructure; ICHI's closest assessment code targets sewerage services specifically, which is one major component of sanitation but does not cover the full scope (e.g., water quality, hygiene). No single ICHI code captures the breadth of "sanitation assessment" as a whole, making this a related but not equivalent match. |
| 711008001 (Assessment of substance withdrawal) | is related to | VA1.AA.ZZ (Assessment of substance-related and addictive behaviours, unspecified) | ICHI has no code specifically for assessing withdrawal states; PZA.TE.ZZ (Detoxification) is a treatment rather than an assessment, so VA1.AA.ZZ — the generic substance-related assessment — is the nearest available code, though it does not capture the clinical specificity of withdrawal symptom evaluation. |
| 450327003 (Assessment of suitability of footwear) | is related to | MVG.AA.ZZ (Assessment of gait pattern) | No ICHI code exists for footwear assessment specifically; the closest functionally related assessment in ICHI is gait pattern assessment, which is the clinical context in which footwear suitability is evaluated. This is a related but not directly equivalent match. |
| 711012007 (Assessment of transfer injury) | is related to | SHG.AA.ZZ (Assessment of transferring oneself) | ICHI contains no code for assessment of injury sustained during transfer; the closest structural match is "Assessment of transferring oneself" (SHG.AA.ZZ), which addresses the transfer activity itself, not the injury risk or consequence. These are related in clinical context but semantically distinct. |
| 713057007 (Assessment using Ecomap) | is related to | SS2.AA.ZZ (Assessment of engaging in particular interpersonal relationships, not elsewhere classified) | An Ecomap is a diagrammatic tool used to assess a person's social network, family relationships, and environmental connections; SS2.AA.ZZ covers assessment of particular interpersonal relationships (NEC), which captures the relational domain an ecomap primarily evaluates. However, the match is only related — ICHI does not encode the specific tool or the environmental/community dimensions of an ecomap. |
| 223454002 (Assisting with activity) | is related to | SM1.RB.ZZ (Practical support with self care, unspecified) | "Assisting with activity" is a very broad nursing/care concept with no direct ICHI equivalent; SM1.RB.ZZ is the closest assignable code covering practical support across unspecified self-care activities, but the SNOMED concept extends beyond self-care to any activity domain, so the match is relational rather than equivalent. |
| 223453008 (Assisting with therapy) | is related to | UCK.RB.ZZ (Practical support with health professionals) | ICHI has no direct concept for "assisting with therapy" as a patient-support activity; UCK.RB.ZZ (practical support with health professionals) is the closest structural analogue, covering support that facilitates access to or engagement with therapeutic professionals, but it is oriented toward the support relationship with health professionals rather than the therapy activity itself. |
| 271549001 (Asymptomatic bacteriuria screening) | is related to | PZX.AH.XB (Specimen collection of urine) | ICHI has no dedicated code for bacteriuria screening or microbiological urine testing; the closest available code captures the specimen collection act (urine) which is the core procedural component. The full concept — screening specifically for asymptomatic bacteriuria — is not represented at any level of ICHI granularity. |
| 76611008 (Atherectomy by laser) | is related to | IZA.JE.AA (Endarterectomy of artery, not elsewhere classified) | ICHI represents atherectomy only via endarterectomy (removal of atheromatous material from an artery wall), which is semantically close but not identical — endarterectomy is typically open surgical plaque removal, whereas laser atherectomy is a distinct percutaneous ablative technique; IZA.JE.AA captures an unspecified artery with an open approach, neither the laser means nor the full spectrum of peripheral atherectomy targets is encoded. |
| 90284003 (Attachment of orbicularis oculi to eyebrow) | is related to | BAA.ML.AA (Reconstruction of eyelid) | Attachment of the orbicularis oculi muscle to the eyebrow is a ptosis-correction procedure involving eyelid and periorbital muscle, which falls closest under eyelid reconstruction in ICHI; however, BAA.ML.AA does not capture the specific muscle-to-brow fixation technique or the frontalis/brow suspension aspect, making this an approximate rather than direct match. |
| 386520000 (Attachment promotion) | is related to | SSJ.PP.ZZ (Counselling about engaging in family relationships) | "Attachment promotion" in clinical usage refers to fostering parent-infant bonding; ICHI has no dedicated code for this, but SSJ.PP.ZZ (counselling about engaging in family relationships) is the closest structural match within the activities and participation domain, though it covers family relationships broadly rather than the specific developmental/psychological attachment construct. |
| 450871008 (Attention to colostomy) | is related to | KBP.LI.AA (Colostomy) | ICHI does not have a distinct code for colostomy maintenance or stoma care; KBP.LI.AA represents the creation procedure rather than ongoing attention to it. The SNOMED concept covers post-operative stoma management (e.g., appliance change, irrigation), which has no precise ICHI equivalent, making this only a related-to match. |
| 235258008 (Attention to duodenostomy) | is related to | KBI.LI.AA (Duodenostomy) | ICHI does not have a dedicated code for ongoing attention to or maintenance of a duodenostomy stoma; KBI.LI.AA represents the creation of a duodenostomy rather than its subsequent care, so the match is only relationally related and not semantically equivalent. |
| 179258006 (Attention to electromagnetic stimulator in bone) | is related to | MRB.DN.AH (Noninvasive placement of external device of bone of unspecified site) | ICHI has no code specifically for monitoring, checking, or managing a bone electromagnetic stimulator already in situ. MRB.DN.AH concerns noninvasive placement of an external bone device and is the closest structural concept, but it covers device insertion rather than ongoing attention to an existing stimulator. |
| 737858009 (Attention to endoprosthesis of bone) | is related to | MRB.JD.AA (Removal of internal device or foreign body from bone of unspecified site) | ICHI has no dedicated code for reviewing or managing an in-situ bone endoprosthesis; the closest actionable codes are implantation (MRB.DN.AA) and removal (MRB.JD.AA) of bone devices. Neither captures the broad "attention to" concept, making this a related-but-not-equivalent mapping. |
| 173838005 (Attention to gastric balloon) | is related to | KBF.JD.AC (Removal of internal device or foreign body from stomach without incision) | Intragastric balloon management encompasses adjustment, surveillance, and removal; ICHI's most commonly applicable single code is KBF.JD.AC (endoscopic removal without incision), which represents one key aspect of attending to a gastric balloon. No ICHI code exists specifically for managing or monitoring a gastric balloon in situ, so this is a related rather than equivalent mapping. |
| 235444009 (Attention to gastrointestinal tract tube) | is related to | KBK.KA.AC (Replacement of tube or enterostomy device of small intestine, not elsewhere classified) | The SNOMED concept is intentionally broad, covering any tube anywhere in the GI tract, whereas ICHI only has site-specific tube-management codes (oesophagostomy, small intestine, rectal). KBK.KA.AC is the most general of these but still narrower and site-specific, making the mapping approximate and relatedto at best. |
| 448837005 (Attention to percutaneously inserted tubal prosthesis in bile duct) | is related to | KCM.KA.AD (Replacement of device in biliary duct) | ICHI has no dedicated "management of internal device of bile duct" code — the KCM block lacks an SN (management) category. KCM.KA.AD covers replacement of a biliary device (the most common component of "attention to" a percutaneous biliary stent), but "attention to" is broader and may include checking patency, flushing, or repositioning without replacement, making this only a related rather than equivalent match. |
| 180006009 (Attention to prosthesis for limb) | is related to | UAE.SM.ZZ (Management of products and technology for personal indoor and outdoor mobility and transportation) | ICHI has no clinical body-system code for managing a limb prosthesis; the closest available code is in the environmental/assistive technology domain (UAE.SM.ZZ) covering management of mobility and transportation products (which includes limb prostheses as assistive devices). This is only relationally linked — the SNOMED concept implies direct clinical attention to the prosthesis, while ICHI frames it as environmental product management. |
| 448544009 (Attention to prosthetic replacement of articulation of bone) | is related to | BlockL5-MRJ (Interventions on joint unspecified site) | ICHI has site-specific joint device replacement codes (hip, knee, shoulder, etc.) but no single code for replacement or management of a joint prosthesis at an unspecified site; the block "Interventions on joint unspecified site" is the closest organisational grouping. A block-level assignment is used because no assignable category code covers this concept without implying a specific joint. |
| 428565009 (Balloon assisted embolization of aneurysm using transluminal coil) | is related to | IAA.LA.AF (Endovascular embolisation or occlusion of intracranial artery) | ICHI does not have a code that captures balloon-remodelling-assisted coil embolization of an aneurysm as a distinct procedure; the SNOMED concept also does not specify vessel location. IAA.LA.AF is the closest available code (endovascular embolisation of an intracranial artery, the most common site for this technique), but the aneurysm target, balloon-assist technique, and coil instrument are not reflected, making this a related-but-not-equivalent match. |
| 169328001 (Beta source contact therapy) | is related to | LZZ.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue by radiotherapy, not elsewhere classified) | Beta source contact therapy is a surface brachytherapy technique using beta-emitting isotopes applied directly to tissue, most commonly skin lesions; ICHI has no dedicated brachytherapy or beta-source code, and LZZ.GA.BA is the closest radiotherapy destruction code but is scoped to skin/subcutaneous tissue and does not capture the beta-emission mechanism or non-dermatological sites. |
| 385964008 (Bladder instillation assessment) | is related to | NTC.AA.ZZ (Assessment of urinary excretory functions) | "Bladder instillation assessment" refers to evaluating the outcome or safety of an intravesical drug instillation, an administrative/clinical monitoring act for which ICHI has no specific code. NTC.AA.ZZ (Assessment of urinary excretory functions) is the closest available concept in the urinary functional domain, but it does not capture the instillation-specific assessment context. |
| 310418000 (Blindness certification) | is related to | BTB.AC.ZZ (Test of seeing functions) | Blindness certification is a formal legal/administrative determination of visual impairment that presupposes functional testing of vision; BTB.AC.ZZ captures the functional test component but not the certification or legal documentation act, making it a related but non-equivalent match. |
| 418389000 (Blood glucose management) | is related to | ETB.AA.ZZ (Assessment of general metabolic functions) | Blood glucose management is a clinical process encompassing monitoring, adjustment, and treatment of glycaemia, which sits within the metabolic function domain; ETB.AA.ZZ is the closest available ICHI code but covers only assessment of general metabolic functions, not the full management cycle, making this a related but imprecise match. |
| 127801007 (Body fluid analysis) | is related to | DIA.AH.XA (Specimen collection of blood) | ICHI does not have a generic "body fluid analysis" code; the closest structured intervention is specimen collection of blood (DIA.AH.XA), which covers only one body fluid type and represents the pre-analytical step rather than the analysis itself. No ICHI code captures generic multi-fluid laboratory analysis, making this a related-but-not-equivalent mapping. |
| 78534001 (Body fluid replacement) | is related to | DIA.DG.AF (Transfusion of blood or blood products) | ICHI has no generic body fluid replacement code; the closest is DIA.DG.AF (transfusion of blood or blood products), which covers only one specific type of fluid replacement. Other fluid types (crystalloids, colloids, electrolyte solutions) lack specific ICHI codes, so this is a related but partial match at best. |
| 118462007 (Bone positioning procedure) | is related to | MRB.LD.AH (Closed reduction of bone of unspecified site) | "Bone positioning" is a very broad SNOMED concept covering any manipulation to place a bone in correct alignment, whereas MRB.LD.AH refers specifically to closed reduction of a fracture at an unspecified site; the two concepts overlap in clinical intent but ICHI's code carries fracture-reduction specificity not implied by the SNOMED term. |
| 9421007 (Bougienage) | is related to | KBA.LG.AC (Dilatation of oesophagus) | Bougienage is a general mechanical dilatation technique applicable to any tubular structure (oesophagus, urethra, cervix, etc.), while KBA.LG.AC covers only oesophageal dilatation — the most common clinical application of bougienage; no single ICHI code represents the technique generically across all targets. |
| 431399005 (Brachytherapy using iodine (131-I) ethiodized oil) | is related to | NGA.GA.BA (Destruction of lesion or tissue of the prostate by radiotherapy) | ICHI encodes brachytherapy implicitly under site-specific radiotherapy destruction codes (GA.BA means axis = radiotherapy), but these are body-site-specific (e.g., prostate, uterus, breast) while the SNOMED concept defines a specific modality (131-I ethiodized oil brachytherapy) without specifying the target organ; since the target is unspecified in the SNOMED concept but required for any ICHI code, and no generic multi-site brachytherapy code exists, the mapping is relatedto rather than equivalent or wider. |
| 241190000 (Breast pneumocystogram) | is related to | LCA.BA.BB (Contrast radiogram of mammary ducts) | A pneumocystogram involves injecting air into an aspirated breast cyst followed by radiography — it is a contrast imaging technique applied to breast cysts, not mammary ducts. LCA.BA.BB (galactography/ductography) is the only contrast radiogram code in the breast imaging block, making it related but not semantically equivalent to this cyst-specific air-contrast procedure. |
| 62434009 (Breast thermography) | is related to | LCA.BA.BE (Nuclear imaging of breast) | Thermography (infrared thermal imaging) of the breast is a distinct imaging modality not represented in ICHI's breast imaging block, which covers mammography, contrast radiogram, MRI, ultrasound, and nuclear imaging only. Nuclear imaging is the closest non-standard imaging modality available but is a different technique; no equivalent or inexact code exists, making this a related-to match. |
| 232591009 (Bronchoscopy with lobar gas sampling) | is related to | JBB.AH.XC (Specimen collection of sputum) | ICHI has no code for bronchoscopic lobar gas or air sampling; the closest available code is specimen collection of sputum, which is also a bronchoscopic respiratory specimen collection procedure but targets sputum rather than lobar gas, making it related rather than equivalent. |
| 386226007 (Calming) | is related to | AUD.RC.ZZ (Emotional support for emotional functions) | ICHI has no code for "calming" as a discrete procedure; the closest match is emotional support targeting emotional functions, which covers the provision of supportive intervention to regulate a person's emotional state. This is related but broader, as calming could also be achieved via sedation, distraction, or other means. |
| 413739009 (Cancer monitoring invitation) | is related to | VDB.VF.ZZ (Alert concerning screening behaviours) | A cancer monitoring invitation is an administrative/communication act prompting a patient to attend surveillance — ICHI does not have a code for recall or invitation specifically, but VDB.VF.ZZ is the closest match, covering population-level alerting to promote engagement with screening/monitoring services. The SNOMED concept is more specific (individual invitation, cancer context). |
| 387672006 (Cardiotochogram) | is related to | NMR.AI.AC (Internal fetal monitoring) | A cardiotocogram (CTG) records fetal heart rate and uterine contractions, typically via external transducers. The closest ICHI code, NMR.AI.AC, refers specifically to invasive monitoring such as a fetal scalp electrode — a different modality and route. No ICHI code for external CTG exists, making this a related but non-equivalent match. |
| 29492006 (Care of patient clothing (record)) | is related to | SME.RA.ZZ (Performing the task of dressing the person) | The SNOMED concept refers to handling/recording a patient's clothing as an administrative or custodial act, whereas SME.RA.ZZ describes the nursing/rehabilitation task of physically dressing the person (putting clothes on them). These are related — both involve clothing — but the SNOMED concept is custodial/clerical and the ICHI code is an activity-performance intervention, so they are not semantically equivalent. |
| 225351009 (Care provision regime) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI has no code for a "care regime" or structured care provision programme as a concept; the closest available category is the residual "Health management encounter, unspecified" (PZB.ZZ.ZZ) within the whole-person block, which relates to ongoing health management encounters but does not specifically encode a care provision regime. |
| 392134007 (Care regimes management) | is related to | PZB.TD.ZZ (Case coordination) | "Case coordination" (PZB.TD.ZZ) is the closest ICHI concept to managing an overall care regime — it involves coordinating the totality of a patient's care — but it emphasises inter-professional coordination rather than the active management and adjustment of care regimes, making it related rather than equivalent. |
| 386229000 (Caregiver support) | is related to | UCH.RG.ZZ (Providing services in relation to support from personal care providers and personal assistants) | ICHI addresses caregivers under the environmental factor "personal care providers and personal assistants" (UCH block), and "Providing services in relation to support from personal care providers and personal assistants" is the closest functional match for caregiver support as a delivered intervention; however, the ICHI framing targets the environment/support system rather than the caregiver as direct recipient of support, making the match relational rather than equivalent. |
| 1345013001 (Caretaking skills case management) | is related to | VEJ.PH.ZZ (Training to influence parenting behaviours) | "Caretaking skills case management" is a social-work-led intervention focused on building care skills in parents or guardians, which aligns most closely with ICHI's "Training to influence parenting behaviours" block (VEJ). However, the ICHI code does not capture the "case management" coordination component of the SNOMED concept, making this a related rather than equivalent match. |
| 392323002 (Cartilage graft) | is related to | MRS.ML.AA (Reconstruction of soft tissue of unspecified site) | ICHI has site-specific cartilage repair codes (e.g., MMC.MK.AA for knee) but no generic "cartilage graft" category; the nearest unspecified-site soft-tissue reconstruction code (MRS.ML.AA) is only loosely related, as cartilage is distinct from soft tissue and the graft concept implies reconstruction/transplantation rather than repair alone. |
| 306729003 (Case closure by social worker) | is related to | PZB.TD.ZZ (Case coordination) | ICHI has no code for case closure or case discharge by a social worker; "Case coordination" (PZB.TD.ZZ) is the closest concept within the whole-person interventions block, but it represents ongoing care coordination rather than the formal administrative closure of a case. |
| 410280002 (Cast care education, guidance, and counseling) | is related to | MTB.PM.ZZ (Education about joint mobility) | ICHI has no code specifically for patient education about cast or splint care; "Education about joint mobility" (MTB.PM.ZZ) captures the functional domain most directly relevant to cast care (immobilisation and mobility), but does not encompass the full scope of cast-specific guidance and counselling as described in the SNOMED concept. |
| 386231009 (Cast care: wet) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | "Cast care: wet" is a nursing activity focused on monitoring and managing a freshly applied wet cast, which is closest to management/replacement of an external immobilisation device in ICHI. However, there is no ICHI code specifically representing cast care as a monitoring or maintenance activity; the match is relational rather than equivalent. |
| 236930001 (Catheterization of fallopian tube) | is related to | NMC.LG.AA (Dilatation of fallopian tube) | ICHI has no catheter insertion code for the fallopian tube; fallopian tube catheterization is clinically performed to dilate or open an occluded tube (selective salpingography/catheterization), making dilatation the closest procedural intent match, though the ICHI code does not encode the catheter-based means. |
| 172900000 (Catheterization of nasal sinus) | is related to | JAE.JB.AC (Drainage of paranasal sinus through natural ostium, not elsewhere classified) | ICHI has no dedicated nasal sinus catheterization code; sinus catheterization is clinically used to drain the sinus through the natural ostium (antrum lavage), making this drainage code the closest functional equivalent, though it does not encode the catheter-based means specifically. |
| 80079004 (Catheterization of nasolacrimal duct) | is related to | BAD.JA.AA (Irrigation of lacrimal apparatus) | ICHI has no specific catheterization or intubation code for the nasolacrimal duct; irrigation of the lacrimal apparatus (BAD.JA.AA) is the closest procedural act on the same structure, but it captures flushing rather than the act of passing a catheter through the duct. The block BlockL5-BAD (Interventions on lacrimal apparatus) is the relevant section, but no assignable code semantically covers nasolacrimal duct catheterization. |
| 53248001 (Catheterization of ureter) | is related to | NAE.JB.AA (Drainage of ureter) | ICHI does not have a dedicated code for ureteral catheterization (no device-insertion code exists under NAE); drainage of the ureter (NAE.JB.AA) is the closest in purpose — both involve accessing the ureter to allow urine flow — but the ICHI code does not specify the catheterization technique and the two concepts are not semantically equivalent. |
| 1287649000 (Cellular immunotherapy) | is related to | DGA.KD.AF (Bone marrow or stem cell transplant) | ICHI has no dedicated code for cellular immunotherapy (e.g., CAR-T, TIL therapy, adoptive cell transfer); the closest assignable code covers bone marrow or stem cell transplantation, which shares the concept of infusing therapeutic cells but is a substantially different and narrower procedure type. The relationship is conceptually related but not semantically equivalent. |
| 1255692001 (Central venous catheter injection) | is related to | IZD.SN.AF (Maintaining intravenous access) | ICHI does not have a dedicated code for administering a substance via an existing central venous catheter; "Maintaining intravenous access" is the closest procedural code covering use of established venous access, but it does not capture the injection/administration act itself and is therefore only relationally similar. |
| 261501006 (Cervical puncture) | is related to | AAG.AH.AE (Cranial puncture) | Cervical puncture (cisterna magna/C1-C2 level puncture for CSF access) is anatomically distinct from cranial puncture, and specimen collection from spinal canal also is not a precise match; no dedicated ICHI code exists for cervical/cisternal puncture, making AAG.AH.AE the closest related interventional code but not a direct equivalent. |
| 225720000 (Changing endotracheal tube headband) | is related to | JBA.KA.AC (Replacement of tracheal device) | No ICHI code exists for changing an endotracheal tube fixation device such as a headband; "Replacement of tracheal device" is the most related code but refers to the tube itself rather than an external securing accessory. |
| 225721001 (Changing endotracheal tube tapes) | is related to | JBA.KA.AC (Replacement of tracheal device) | Endotracheal tube tapes are an external fixation material rather than the tube device itself, and ICHI has no code for changing tube-securing tape; "Replacement of tracheal device" is the closest related concept in the trachea interventions block. |
| 425890004 (Checking contraceptive diaphragm) | is related to | NMH.KA.AC (Replacement and refitting of vaginal device) | NMH.KA.AC is the closest ICHI code in scope, as it covers the refitting and replacement of a vaginal device, which partially overlaps with the act of checking a contraceptive diaphragm for fit. However, the SNOMED concept is specifically a checking/verification act whereas the ICHI code implies a replacement or refit procedure, making this only a related match. |
| 432028000 (Checking position of endotracheal tube by auscultation) | is related to | JBA.DL.AC (Insertion of endotracheal tube) | ICHI captures the insertion of an endotracheal tube but has no code for post-insertion position verification by auscultation. There is no trachea-specific assessment or monitoring code in the JBA block; the insertion code is the most closely related procedural code available. |
| 432987005 (Checking position of endotracheal tube using exhaled carbon dioxide) | is related to | JBA.DL.AC (Insertion of endotracheal tube) | As with auscultation-based checking, ICHI has no code for capnography-guided ETT position verification. The endotracheal tube insertion code is the most contextually related code in ICHI; a CO2-based position check is a peri-insertion safety step not independently represented in the classification. |
| 225260003 (Checking position of thread of intrauterine device) | is related to | NME.AE.AC (Digital examination of uterus) | ICHI has no specific code for checking IUD thread position. Digital examination of uterus (NME.AE.AC) is the physical examination technique most often used to confirm IUD thread presence and is the best relatedto match for this clinical check. |
| 51767009 (Chemodenervation of extraocular muscle) | is related to | MRM.DB.AE (Injection into muscle of unspecified site) | The BDA (Extraocular muscle) block in ICHI has no injection code — only surgical procedures such as transposition, shortening, and repair. MRM.DB.AE captures the procedural action (injection into muscle) but refers to an unspecified site and does not convey chemodenervation semantics, making it only relatedly connected. |
| 271453001 (Child examn/reports/meetings) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | This SNOMED concept describes a composite administrative/clinical activity encompassing child examinations, report preparation, and meetings — a multi-faceted encounter type that has no precise ICHI equivalent. PZB.ZY.ZY is the best available approximation, capturing the encounter/management nature of the activity. |
| 134431007 (Child health promotion) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | "Child health promotion" is a population/individual-level preventive concept with no dedicated ICHI code; PZB.ZZ.ZZ is the closest available category as a catch-all for health management interactions, though it does not encode the promotional/preventive intent or the paediatric population target. |
| 260397005 (Closure of fistula of cerebrospinal fluid) | is related to | AAC.MK.AA (Repair of cerebral meninges) | ICHI contains no dedicated "closure of CSF fistula" code; the closest match is repair of the cerebral meninges, which is the tissue layer involved in most CSF fistulae, but "repair of meninges" is broader and does not specifically encode fistula closure or the CSF fluid compartment. |
| 1268693009 (Coaching for interview readiness) | is related to | SUD.PN.ZZ (Advising about acquiring, keeping and terminating a job) | ICHI has no "coaching for interview readiness" concept; the closest match shares the vocational readiness domain but is broader and framed as advising rather than coaching for a specific interview skill. |
| 185530001 (Cohort screening) | is related to | VDB.VC.ZZ (Public health surveillance concerning screening behaviours) | Cohort screening is a defined-population epidemiological screening strategy, which sits within the public health surveillance domain in ICHI; VDB.VC.ZZ captures the surveillance/monitoring of screening behaviours at the population level. ICHI does not encode the cohort study design itself. |
| 410281003 (Communication education, guidance, and counseling) | is related to | BlockL3-_LD (Interventions on learning and applying knowledge) | ICHI has codes for "Education about communication, unspecified" and "Counselling about communication, unspecified" within the _LD block, but these codes are marked _LDINCOMPLETE; the closest usable grouping is the block itself, since no single assignable category covers the combined education, guidance, and counselling on communication. |
| 225220004 (Communication interventions) | is related to | BlockL3-_LD (Interventions on learning and applying knowledge) | "Communication interventions" is a very broad SNOMED grouping concept; ICHI's BlockL3-_LD covers the communication target domain but no single assignable ICHI category captures the full breadth of this parent concept. |
| 422649009 (Community outreach worker services education, guidance, and counseling) | is related to | UEP.PM.ZZ (Education about health services, systems and policies) | UEP.PM.ZZ is the nearest ICHI code in scope to education about community outreach worker services, but it is broader and does not distinguish outreach worker services specifically. |
| 1370991005 (Conjunctival limbal autograft to ocular surface) | is related to | BBB.KD.AA (Corneal transplant) | ICHI contains no limbal stem cell transplantation code; the closest anatomically related code is BBB.KD.AA (Corneal transplant) since CLAU targets the corneal limbus, but a corneal transplant is a distinct procedure type. |
| 1255369007 (Construction of abdominal stoma) | is related to | KBP.LI.AA (Colostomy) | ICHI encodes specific named abdominal stoma types (colostomy, ileostomy, etc.) rather than the generic act of abdominal stoma construction; KBP.LI.AA is the most commonly referenced abdominal stoma but covers only colonic stoma. |
| 233075005 (Construction of conduit - right ventricle to aorta) | is related to | HBA.LI.AA (Creation of conduit between left ventricle and aorta) | ICHI has a dedicated conduit-creation code between the left ventricle and the aorta but no equivalent code for right ventricle to aorta; HBA.LI.AA is selected as relationally closest given the shared "ventricular outflow conduit to great artery" concept, but the source ventricles differ. |
| 440241001 (Construction of custom nasal prosthesis) | is related to | JAA.DN.AC (Implantation of device into nose) | A custom nasal prosthesis is an external maxillofacial epithesis, whereas JAA.DN.AC denotes implantation of an internal device into the nose; ICHI has no code for fabrication or fitting of an external facial prosthesis. |
| 440705000 (Construction of custom palatal lift prosthesis) | is related to | KAS.DN.AA (Implantation of device into soft palate) | A palatal lift prosthesis is a removable intraoral appliance that mechanically elevates the soft palate; KAS.DN.AA is the nearest anatomical code but implies surgical implantation of a fixed internal device rather than fabrication and fitting of a removable prosthesis. |
| 440712009 (Construction of custom speech aid prosthesis) | is related to | KAS.DN.AA (Implantation of device into soft palate) | A speech aid prosthesis (palatal obturator for cleft palate or VPI) is a removable oral appliance targeting the soft palate; KAS.DN.AA is the nearest ICHI code by target anatomy but does not capture the removable or speech-aid nature. |
| 440713004 (Construction of custom surgical obturator prosthesis) | is related to | KAT.DN.AA (Implantation of internal device of hard palate) | A surgical obturator is a temporary prosthesis placed immediately after maxillectomy to close a hard palate defect; KAT.DN.AA covers device implantation into the hard palate but does not distinguish a temporary surgical obturator from other hard-palate devices. |
| 281614005 (Construction of dental pull down template) | is related to | KAE.LC.AC (Application of dental device) | A dental pull-down (surgical guide) template is a fabricated device used to guide dental implant placement; KAE.LC.AC is the broadest dental-device code available but ICHI does not encode the fabrication of a surgical guide as a distinct procedure. |
| 429620002 (Construction of left ventricle to aorta tunnel with right ventricle to pulmonary artery valved conduit) | is related to | HBA.LI.AA (Creation of conduit between left ventricle and aorta) | This SNOMED concept is a combined procedure involving both an LV-to-aorta tunnel and an RV-to-pulmonary artery valved conduit; HBA.LI.AA captures only the LV-to-aorta component and entirely omits the RV-to-PA conduit, so it is related but not an adequate representation of the full procedure. |
| 429575001 (Construction of left ventricle to aorta tunnel with right ventricle to pulmonary trunk direct anastomosis) | is related to | HBA.LI.AA (Creation of conduit between left ventricle and aorta) | Combined operation pairing an LV-to-aorta tunnel with an RV-to-pulmonary trunk direct anastomosis; HBA.LI.AA covers only the LV-to-aorta portion and does not account for the second anastomosis component, so it is related but not equivalent to the full SNOMED procedure. |
| 788542004 (Consultation by acupuncturist) | is related to | PZX.SP.AH (Acupuncture, not elsewhere classified, external) | ICHI has no concept for a consultation by an acupuncturist as a standalone advisory encounter; the closest code (PZX.SP.AH) represents the therapeutic acupuncture procedure itself rather than a consultation visit, so it is related but does not capture the consultation-only nature of the SNOMED concept. |
| 788543009 (Consultation by ergotherapist) | is related to | PZB.AA.ZZ (General health assessment) | ICHI contains no code specifically for an occupational therapy (ergotherapy) consultation; PZB.AA.ZZ "General health assessment" is the closest whole-person assessment code available, but it is far broader than a specialist consultation by an occupational therapist and does not capture the discipline-specific context. |
| 1268903003 (Consultation by multidisciplinary team) | is related to | PZB.TD.ZZ (Case coordination) | ICHI does not have a concept for a multidisciplinary team consultation specifically; PZB.TD.ZZ "Case coordination" is the nearest code as it implies coordinated multi-provider management of a patient, but it emphasises coordination activity rather than the consultation encounter itself. |
| 1290509001 (Consultation for acute disorder) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI has no concept for a consultation specifically contextualised by acuity or disorder type; PZB.ZZ.ZZ "Health management encounter, unspecified" is the most generic encounter-level code available, but it does not convey the acute-disorder specificity of the SNOMED concept nor the consultation modality. |
| 698311009 (Consultation for assisted reproductive procedure) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept for a procedure-specific consultation; "Referral to health provider" is the closest available code representing the act of directing a patient toward a specialised service (here, assisted reproductive technology), but it does not capture the consultative assessment dimension. |
| 866203004 (Consultation for asthma) | is related to | JTB.AA.ZZ (Assessment of respiration function) | ICHI does not have a disease-specific consultation concept; a consultation for asthma involves evaluating respiratory function, making "Assessment of respiration function" the closest domain match, though the ICHI code is broader (covers any respiratory assessment) and does not encode the consultative encounter framing. |
| 698307003 (Consultation for benign neoplasm disease) | is related to | PZB.AA.ZZ (General health assessment) | ICHI contains no neoplasm- or tumour-specific consultation or assessment code; "General health assessment" is the broadest fallback that at least represents a clinical assessment encounter, but the ICHI code is substantially wider in scope and does not capture the oncology context. |
| 866204005 (Consultation for chronic obstructive pulmonary disease) | is related to | JTB.AA.ZZ (Assessment of respiration function) | As with asthma, ICHI lacks a COPD-specific or disease-consultation concept; "Assessment of respiration function" is the closest domain match since COPD management is centred on evaluating respiratory function, but the ICHI code is not disease-specific and does not encode the encounter type. |
| 698310005 (Consultation for colposcopy related procedure) | is related to | NMF.AE.AC (Colposcopy) | The SNOMED concept describes a pre-procedure consultation in the context of colposcopy, not the procedure itself; NMF.AE.AC anchors the mapping to the correct anatomical and procedural context but represents the colposcopy itself rather than the consultative encounter. |
| 1287705005 (Consultation for diabetes mellitus) | is related to | ETK.PN.ZZ (Advising about endocrine gland functions) | ICHI has no "consultation" concept; the closest functional match for a diabetes consultation is advising about endocrine gland functions (the endocrine pancreas being the implicated organ), but the ICHI code covers only the advising/counselling component and is framed around endocrine gland function rather than diabetes as a disease. |
| 1287779000 (Consultation for hearing problem) | is related to | CTB.AN.ZZ (Interview in relation to hearing functions) | ICHI has no "consultation" concept; the closest functional match is the interview (history-taking) in relation to hearing functions, which captures a core component of what a hearing consultation entails but covers only the interview component, not the full clinical encounter. |
| 1287707002 (Consultation for hypertension) | is related to | ITA.AN.ZZ (Interview in relation to blood pressure functions) | ICHI has no "consultation" concept; hypertension is a disorder of blood pressure regulation, and the closest ICHI code is the interview in relation to blood pressure functions, but the ICHI code represents only the interview component and targets the function rather than the disease. |
| 1287706006 (Consultation for menopause) | is related to | ETK.PP.ZZ (Counselling for endocrine gland functions) | Menopause is fundamentally a transition in endocrine (ovarian) function, and ICHI's nearest applicable code covers counselling for endocrine gland functions broadly; however, the ICHI code does not specifically address menopause nor restrict to the reproductive endocrine axis. |
| 713281006 (Consultation for palliative care) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | ICHI lacks any palliative care-specific code, and PZB.PP.ZZ is a residual whole-person counselling category that could encompass goals-of-care and palliative discussions; the mapping is related but not semantically equivalent, as the ICHI code is broader and does not carry the specific palliative care context. |
| 49463003 (Consultation for paternity case) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | A paternity case consultation involves a health professional providing advice in a medico-legal context; ICHI has no code for paternity or forensic testing, so the residual counselling code for the whole person is the closest structural match, though the legal and forensic nature of the encounter is not represented. |
| 1255360006 (Consultation for radiotherapy) | is related to | PZB.TB.ZZ (Individualised planning) | A radiotherapy consultation is primarily a clinical planning encounter in which a radiation oncologist designs a treatment course; ICHI does not have a dedicated pre-radiotherapy consultation code, and "Individualised planning" captures the planning intent of the encounter better than radiotherapy-specific codes (which all represent the destructive treatment itself). |
| 423861007 (Consultation for restraint debriefing) | is related to | SDJ.PP.ZZ (Counselling about handling stress and other psychological demands) | Post-restraint debriefing is a structured psychological intervention addressing the emotional aftermath of a restraint event, which aligns with counselling about stress and psychological demands; however, ICHI does not distinguish debriefing as a specific technique within counselling. |
| 698314001 (Consultation for treatment) | is related to | PZB.TB.ZZ (Individualised planning) | A consultation for treatment is a broad, non-specific encounter in which a clinician discusses and plans a course of treatment with a patient; ICHI's "Individualised planning" is the closest match as it captures the bespoke planning nature of the encounter, but neither the consultation activity nor the unspecified treatment context is directly represented. |
| 710242005 (Consulting with home care service) | is related to | UEP.TD.ZZ (Collaboration relating to health services, systems and policies) | ICHI has no specific "consultation" or "home care" code; the closest match is inter-service collaboration under health services, which captures the inter-organisational coordination intent of consulting a home care service, but the ICHI code is broader and applies to a public-health policy level rather than a clinical encounter. |
| 424800003 (Continuity of care education, guidance, and counseling) | is related to | UEP.TB.ZZ (Planning in relation to health services, systems and policies) | ICHI has no composite code covering education, guidance, and counseling together for care continuity; the planning code captures the care-transition coordination dimension but omits the patient-facing education and counseling components that are central to this SNOMED concept. |
| 72531000052105 (Contraceptive counseling) | is related to | NUD.PP.ZZ (Fertility counselling) | No ICHI code for contraceptive counselling exists; the closest available is "Fertility counselling" under interventions on reproductive functions, but it addresses fertility promotion rather than contraception, making it related but not semantically equivalent. |
| 718029003 (Contralateral neck dissection) | is related to | DFB.JL.AA (Radical neck dissection) | ICHI's only neck dissection code is specifically "Radical neck dissection," whereas the SNOMED concept specifies the laterality (contralateral side) without implying radicality; the procedure type and the specified attribute differ, making this a related but not equivalent match. |
| 698649004 (Control of hemorrhage in blood vessel of limb following vascular surgery) | is related to | IZE.MK.AA (Repair of blood vessel, not elsewhere classified) | ICHI lacks a dedicated "control of haemorrhage of limb vessel" code; IZE.MK.AA is the closest available option as a repair/haemostasis of a blood vessel with an unspecified (NEC) anatomical site, but it does not encode the limb location, the post-surgical context, or the specific haemorrhage-control action axis. |
| 709096001 (Control of hemorrhage of blood vessel of abdomen following vascular surgery) | is related to | IZE.MK.AA (Repair of blood vessel, not elsewhere classified) | The abdominal vessel block (IEA) contains no specific haemorrhage-control code; IZE.MK.AA is the best available NEC fallback representing repair of a blood vessel, but it omits the abdominal site specificity and the post-vascular-surgery haemorrhage context present in the SNOMED concept. |
| 698647002 (Control of hemorrhage of blood vessel of neck following vascular surgery) | is related to | IZE.MK.AA (Repair of blood vessel, not elsewhere classified) | No dedicated haemorrhage-control code exists for neck vessels in ICHI (IBA block contains occlusion and reconstruction but not haemorrhage control); IZE.MK.AA is the best NEC approximation, but it is anatomically non-specific and does not encode the neck site or post-surgical context. |
| 698648007 (Control of hemorrhage of intrathoracic blood vessel following vascular surgery) | is related to | IDA.MK.AA (Repair of artery of thorax) | ICHI has no dedicated "control of haemorrhage" code for intrathoracic vessels; neither the thoracic artery (BlockL5-IDA) nor thoracic vein (BlockL5-IDB) blocks contain a haemostasis or bleeding-control category. IDA.MK.AA "Repair of artery of thorax" is the closest structural intervention, but it does not capture the post-surgical haemorrhage context or cover venous bleeding, making this only a related concept. |
| 709423005 (Control of postoperative hemorrhage of anus) | is related to | KBW.LA.AA (Control of bleeding of rectum) | ICHI has no haemorrhage/haemostasis code specifically for the anus; KBW.LA.AA covers the immediately adjacent rectum using the same LA (bleeding control) action, but the target is the rectum (KBW), not the anus (KBX), making it anatomically related but not equivalent. Neither ICHI code captures the postoperative specificity. |
| 302384005 (Controlled cord traction of placenta) | is related to | NMM.JE.AC (Manual removal of retained placenta) | ICHI has no code for controlled cord traction specifically; NMM.JE.AC is the closest code in the placenta/cord block, as both involve manual manipulation to achieve placental separation and delivery, but controlled cord traction is a routine third-stage technique while NMM.JE.AC refers to management of a retained (pathological) placenta. |
| 1268664009 (Coordination of resources to address elder abuse) | is related to | VBB.TD.ZZ (Collaborating or building partnerships in relation to family and partner violence behaviours) | ICHI has no elder-abuse-specific code; the closest available domain is VBB (family and partner violence), and the action "Collaborating or building partnerships" (TD) corresponds to coordinating resources. Elder abuse frequently occurs in family/domestic settings, making VBB the nearest structural fit, but the ICHI code does not capture the elder-specific population dimension, making this a related rather than equivalent mapping. |
| 44272006 (Cordopexy of vocal cord) | is related to | JAN.LC.AA (Arytenoidopexy) | ICHI has no code for cordopexy (fixation of the vocal cord) specifically; the closest structural match is JAN.LC.AA "Arytenoidopexy," which is a fixation (LC = positioning/fixation) within the larynx block, but it targets the arytenoid cartilage rather than the vocal cord itself. The procedures are related laryngeal fixation operations but are anatomically distinct. |
| 390799004 (Coronary heart disease review) | is related to | HTB.AA.ZZ (Assessment of heart functions, not elsewhere classified) | ICHI has no code for a disease-specific clinical review encounter; HTB.AA.ZZ (assessment of heart functions, NEC) is the nearest functional equivalent within the circulatory system assessment block, though it does not capture the chronic disease management or follow-up encounter nature of the SNOMED concept. |
| 64833008 (Costochondral cartilage graft) | is related to | MCB.JH.AA (Procurement of bone of rib or sternum for graft) | The costochondral graft harvests the osteocartilaginous junction of the rib — primarily cartilage, not bone — but MCB.JH.AA is the closest ICHI code covering graft procurement from the rib/sternum region (thoracic cage). The SNOMED concept specifically refers to cartilage harvest (chondral component), while the ICHI code focuses on the bony component, making this a related but not equivalent match. |
| 310358004 (Counseling about serious diagnosis) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | ICHI has no code specifically for counselling triggered by a serious or life-changing diagnosis; PZB.PP.ZZ is the residual whole-person counselling category and is the closest available code, but it carries no implication of a serious diagnosis context, making the match relational rather than equivalent or hierarchically aligned. |
| 710198002 (Counseling about spiritual distress) | is related to | SXH.PN.ZZ (Advising about engaging in religion and spirituality) | ICHI does not have a counselling code specifically for spiritual distress; SXH.PN.ZZ (advising about religion and spirituality) is the closest match, but it sits in the activities/participation domain and addresses engagement with religion rather than the psychological or existential distress dimension of the SNOMED concept. The relationship is meaningful but the semantic axes differ enough that a direct equivalence cannot be asserted. |
| 464691000124107 (Counseling for barriers to achieving food security) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | ICHI has no dedicated code for counseling targeting food security barriers; the UAB block covers population-level food interventions (awareness raising, capacity building, policy) rather than individual counseling. PZB.PP.ZZ is the best-fit residual counselling category, but it is only relatedly associated since it carries no food security specificity. |
| 737598000 (Counseling for end of life issues) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | ICHI has no dedicated code for end-of-life counselling — there are no codes for palliative, terminal, advance care planning, grief, or bereavement counselling. PZB.PP.ZZ is the only residual counselling category available and relates to the concept only in that it represents unspecified counselling. |
| 464681000124109 (Counseling for food insecurity care plan participation barriers) | is related to | VD1.PP.ZZ (Counselling about health service-related behaviours, unspecified) | The SNOMED concept targets counselling aimed at overcoming barriers to participating in a food insecurity care plan — a health service engagement behaviour — which aligns with ICHI's "health service-related behaviours" counselling domain. However, ICHI has no specific code for food insecurity or care plan adherence barriers, making this a related but not directly equivalent match. |
| 1230101008 (Counseling for pregnancy) | is related to | NUE.RC.ZZ (Emotional support for pregnancy functions) | ICHI has no counselling (PP) code within the NUE pregnancy functions block — only assessment, monitoring, exercise, training, education, and emotional support codes exist there. NUE.RC.ZZ (emotional support for pregnancy functions) is the closest available code within the correct pregnancy domain, though counselling is a broader concept than emotional support alone; PZB.PP.ZZ (counselling NEC) would be an alternative but lacks the pregnancy specificity. |
| 464701000124107 (Counseling for readiness to achieve food security goals) | is related to | UAB.VA.ZZ (Capacity building targeting food safety and security) | ICHI's food block (UAB) contains no individual-level counselling or behaviour-change code; UAB.VA.ZZ (capacity building for food safety and security) is the closest match as it targets enabling food security goals, though it is oriented toward population/system-level capacity rather than individual-level readiness counselling. |
| 22600001 (Creation of arteriovenous fistula with nonautogenous graft) | is related to | IZE.LI.AA (Bypass of blood vessel, not elsewhere classified) | ICHI has no code for arteriovenous fistula creation; the closest structural concept is a blood vessel bypass/conduit (IZE.LI.AA), but this does not capture the arteriovenous anastomosis semantics, the fistula intent, or the nonautogenous graft material. The match is related but not directly equivalent. |
| 71382001 (Creation of cutaneoperitoneal fistula) | is related to | KMA.LI.AA (Creation of peritoneovascular shunt) | ICHI has no code for cutaneoperitoneal fistula creation; KMA.LI.AA describes creating a shunt from the peritoneal cavity to a vessel, which shares the peritoneum-to-another-structure drainage concept but targets vasculature rather than skin. No better match exists in ICHI for this uncommon procedure. |
| 48859006 (Creation of esophagogastric sphincteric competence) | is related to | KBF.MK.AA (Repair of stomach) | This SNOMED concept describes antireflux/fundoplication-type procedures reconstituting lower esophageal sphincter function; ICHI has no dedicated antireflux or fundoplication code. Repair of stomach is the nearest available code covering reconstructive gastric work at the gastroesophageal junction, but it does not convey the sphincter-competence or antireflux intent. |
| 122469009 (Reduction procedure) | is related to | MRB.LD.AH (Closed reduction of bone of unspecified site) | "Reduction procedure" in SNOMED is a very broad concept covering any type of fracture or dislocation reduction at any site; MRB.LD.AH captures unspecified-site bone reduction but is limited to the closed approach and to bones specifically, so it is a related but not fully representative match for this high-level concept. |
| 789482004 (Regenerative endodontic procedure) | is related to | KAE.ML.AC (Root canal therapy) | ICHI has no code for regenerative endodontic procedures, which are biologically-driven treatments aimed at regenerating pulp-dentin tissue rather than simply filling root canals. Root canal therapy (KAE.ML.AC) covers conventional endodontic treatment and is the closest dental/tooth intervention available, but the regenerative intent and biological nature of the SNOMED concept make this only a related match. |
| 231104003 (Removal of acupuncture needle) | is related to | PZX.SP.AE (Acupuncture, not elsewhere classified, percutaneous) | ICHI has no dedicated code for removal of an acupuncture needle as a standalone act; the available acupuncture codes describe the acupuncture intervention itself rather than the discrete act of needle removal, making this a related but not equivalent match. |
| 16736007 (Transcatheter therapy for embolization) | is related to | IZE.ZZ.ZZ (Other interventions on vessels, not elsewhere classified) | ICHI has transcatheter embolisation codes only for specific vessels, but no generic "transcatheter embolisation of unspecified vessel" code exists; the residual IZE.ZZ.ZZ captures unspecified vessel interventions but does not encode the embolisation action, making this only a related-to match. |
| 409088002 (Tube care: endotracheal) | is related to | JBA.JB.AC (Suctioning of endotracheal tube) | ICHI has no general "endotracheal tube care/maintenance" concept; suctioning is one specific component of endotracheal tube care, making it only relatedly applicable rather than equivalent. |
| 1332562000 (Ultrasonography guided balloon dilation of nephrostomy) | is related to | NAA.LI.AE (Percutaneous nephrostomy) | ICHI has no code specifically for balloon dilation of an existing nephrostomy tract; NAA.LI.AE covers the creation of a percutaneous nephrostomy rather than the dilation of one, making it only relatedly applicable. |
| 238250002 (Umbilical cord clamp removal) | is related to | NMM.LA.AH (Umbilical cord clamping) | Both concepts concern the umbilical cord clamp, but NMM.LA.AH describes application of the clamp whereas the SNOMED concept describes its removal; no ICHI code for clamp removal exists. |
| 386482009 (Umbilical line tube care) | is related to | IED.DL.AF (Percutaneous transluminal insertion of catheter into umbilical vein) | "Umbilical line tube care" is an ongoing maintenance activity for an already-placed umbilical line, whereas IED.DL.AF covers only the insertion act. No ICHI code for post-insertion catheter care/management of an umbilical vein device exists; IED.DL.AF is the closest anatomically related procedural code. |
| 73633004 (Uterine contraction monitor maintenance) | is related to | NME.AI.AH (Monitoring of delivery) | ICHI does not have a code for maintaining or managing a uterine contraction monitor as an activity; NME.AI.AH is the closest related concept but describes the monitoring act itself rather than the technical maintenance of the monitoring equipment. |
| 473205007 (Assessment of effectiveness of bowel preparation) | is related to | KTK.AA.ZZ (Assessment of defaecation functions) | Bowel preparation evaluation operates at the level of bowel/defaecation function; KTK.AA.ZZ is the closest functional assessment but addresses baseline defaecation function rather than evaluating the adequacy of a preparation protocol. |
| 1148815009 (Assessment of goals to achieve adequate housing) | is related to | UEE.AA.ZZ (Assessment of housing services, systems and policies) | The SNOMED concept focuses on goal-setting for an individual to achieve adequate housing (a person-centred social-determinants assessment), whereas UEE.AA.ZZ targets housing services at a population/structural level — related but at different levels of abstraction. |
| 1148814008 (Assessment of goals to achieve housing security) | is related to | UEE.AA.ZZ (Assessment of housing services, systems and policies) | Person-centred housing security goal-assessment maps to UEE.AA.ZZ system/policy-level housing services assessment — related but not directly equivalent, and no closer ICHI code exists. |
| 1231388000 (Assessment of knowledge of complementary therapy) | is related to | VFZ.AA.ZZ (Assessment of other specified health-related behaviours) | ICHI has no code for complementary or alternative therapy knowledge assessment; VFZ.AA.ZZ (residual health-related behaviours assessment) is the closest available home but is only broadly related. |
| 709486004 (Assessment of knowledge of physical therapy) | is related to | VFS.AA.ZZ (Assessment of health literacy levels) | ICHI has no code for assessing a patient's knowledge specifically of physical therapy. VFS.AA.ZZ (Assessment of health literacy levels) is the closest available concept — it covers a clinician's assessment of a patient's understanding of health-related information — but it is broader and does not target physical therapy knowledge specifically. |
| 709487008 (Assessment of knowledge of treatment regime) | is related to | VFS.AA.ZZ (Assessment of health literacy levels) | ICHI does not have a code for assessing a patient's knowledge of their treatment regimen. VFS.AA.ZZ (Assessment of health literacy levels) is the nearest available match, as treatment-regime knowledge is a core component of health literacy, but the ICHI code is considerably broader and not specific to treatment adherence or understanding. |
| 17081000202107 (Assessment of loneliness) | is related to | SSG.AA.ZZ (Assessment of engaging in informal social relationships) | ICHI has no dedicated code for assessing loneliness as a psychological or social state. SSG.AA.ZZ (Assessment of engaging in informal social relationships) is the closest available code, since loneliness is primarily defined by a deficit in informal social relationships; however, it targets behavioural participation rather than the subjective experience of loneliness, making this a related-but-inexact mapping. |
| 39842005 (Creation of syndactyly) | is related to | LAE.MK.AA (Repair of skin and subcutaneous cell tissue of upper limb) | Surgically creating syndactyly involves suturing adjacent digit skin flaps together, which falls within skin and soft tissue repair of the upper limb; however, LAE.MK.AA is a generic repair code with no implication of intentional digit union, and ICHI has no code for deliberate syndactyly creation or finger reconstruction of this kind. The match is relational at best. |
| 313073008 (Crime victim counseling) | is related to | VBC.PP.ZZ (Counselling about community violence behaviours) | Crime victims are recipients of violence, not perpetrators of community violence behaviours — the ICHI code sits in a block targeting behavioural change around community violence rather than support for victims. VBC.RC.ZZ (emotional support) was also considered but counselling is the stronger match for the activity; however, neither code is semantically equivalent to victim-focused counselling. |
| 431668004 (CT guided kyphoplasty of fracture of cervical spine) | is related to | MBZ.ML.AE (Percutaneous vertebroplasty, not elsewhere classified) | Kyphoplasty and vertebroplasty are closely related percutaneous vertebral augmentation procedures, but kyphoplasty additionally involves balloon inflation to restore vertebral height before cement injection — a meaningful procedural distinction. Furthermore, MBZ.ML.AE does not specify the cervical spine level, making it broader in both technique and anatomical specificity. |
| 431613003 (CT guided kyphoplasty of fracture of lumbar spine) | is related to | MBZ.ML.AE (Percutaneous vertebroplasty, not elsewhere classified) | As with the cervical variant, kyphoplasty differs from vertebroplasty by its balloon-assisted technique, and MBZ.ML.AE does not encode lumbar specificity; it is the closest available ICHI code but remains relationally rather than equivalently matched. |
| 432903006 (CT guided kyphoplasty of fracture of thoracic spine) | is related to | MBZ.ML.AE (Percutaneous vertebroplasty, not elsewhere classified) | Same reasoning as the cervical and lumbar kyphoplasty concepts — kyphoplasty and vertebroplasty are procedurally related but not identical, and MBZ.ML.AE does not capture thoracic specificity, making this a relatedto rather than equivalent or wider mapping. |
| 1356866001 (CT guided percutaneous insertion of fiducial marker into liver) | is related to | KCA.DB.AE (Injection into liver) | No ICHI code exists for percutaneous placement of a fiducial/reference marker into the liver; KCA.DB.AE covers percutaneous delivery of material into the liver but describes injection rather than device insertion, and does not capture the fiducial marker or CT-guidance specificity. |
| 386253006 (Cutaneous stimulation) | is related to | AVD.SC.ZZ (Stimulation of touch functions) | Cutaneous stimulation is a clinical technique (e.g., massage, heat, ice, TENS applied to the skin surface) used in pain management and rehabilitation, while AVD.SC.ZZ targets stimulation of touch functions from a functional/rehabilitation perspective. The two are conceptually related — both involve cutaneous/tactile stimulation — but the SNOMED concept emphasises the physical technique/intervention on the skin rather than the functional rehabilitation goal encoded in ICHI. |
| 445056003 (Cutting toenails of both feet) | is related to | LBF.JG.AA (Debridement of nail, nail bed, or nail fold of toe) | ICHI has no dedicated "nail cutting/trimming" code; the closest surgical match is LBF.JG.AA (debridement of nail of toe), but debridement implies therapeutic removal of devitalised tissue rather than routine nail cutting. The SNOMED concept describes a basic nursing/podiatry task that ICHI classifies in the Activities & Participation self-care axis (SMC — caring for body parts) rather than as a surgical procedure on the nail target. |
| 315029007 (Debulking of cartilage graft of eyelid) | is related to | BAA.ML.AA (Reconstruction of eyelid) | ICHI has no specific code for debulking of a graft; debulking a cartilage graft placed in the eyelid is a reconstructive refinement procedure, making "Reconstruction of eyelid" the most clinically related code available. The ICHI code does not capture the specific nature of the procedure (graft reduction vs. primary reconstruction), so the match is relatedto rather than equivalent or wider. |
| 238302003 (Debulking of pelvic tumor) | is related to | PAK.JI.AA (Excision of intra-abdominal lesion) | No dedicated pelvic-cavity lesion excision code exists in ICHI; "Excision of intra-abdominal lesion" is the closest available code but is anatomically imprecise (abdomen rather than pelvis) and does not reflect the partial/cytoreductive nature of debulking. |
| 10745001 (Delivery of transverse presentation) | is related to | NMR.LD.AC (Rotation of fetus) | Delivery of a transverse presentation typically requires internal or external rotation/version of the fetus before or during delivery, which NMR.LD.AC (Rotation of fetus) captures as the operative intervention. However, NMR.LD.AC describes the rotational maneuver specifically, while the SNOMED concept encompasses the entire delivery event including fetal malposition, so the match is related but not directly equivalent. |
| 85403009 (Delivery, medical personnel present) | is related to | NME.AI.AH (Monitoring of delivery) | SNOMED's concept describes a circumstance of delivery characterised by medical personnel attendance rather than a distinct procedural act, while ICHI's "Monitoring of delivery" is the closest active intervention code covering clinical oversight during labour. No ICHI code captures the mere presence of medical staff as a classifiable intervention. |
| 71061001 (Dentoalveolar bone osseous surgery, including flap entry and closure, per quadrant) | is related to | KAG.JJ.AC (Partial excision of gingiva) | Dentoalveolar osseous surgery involves raising a mucoperiosteal flap, reshaping the alveolar bone, and closing — a periodontal procedure targeting both bone and gingival tissue. ICHI lacks a specific alveolar bone surgery or osseous resection code; KAG.JJ.AC (Partial excision of gingiva) is the nearest related dental surgical code, but it captures only the gingival component and not the bone reshaping that is the primary objective of this procedure. |
| 1303471003 (Destruction of lesion of perineum using laser) | is related to | PAW.JI.AA (Local excision of lesion of perineum) | ICHI contains no destruction code under the PAW (perineum) block — PAW.JI.AA (local excision of lesion of perineum) is the closest available code for a lesion-level intervention on the perineum, but excision and destruction are distinct actions, and neither captures the laser modality. The two concepts are related but not equivalent. |
| 450354000 (Destruction of thoracic sympathetic nerve) | is related to | ADC.JK.AA (Total excision of thoracic sympathetic nerve) | ICHI has no thoracic sympathetic nerve destruction code; the closest available codes are excision (surgical removal) of the thoracic sympathetic nerve. "Destruction" and "total excision" both ablate the nerve but by different means, making this a related but inexact match; ADC.JK.AA is chosen as the most specific anatomically correct option. |
| 67407003 (Determination of outcome) | is related to | PZB.AA.ZZ (General health assessment) | "Determination of outcome" is a high-level clinical judgment activity not directly represented in ICHI; the closest available code, General health assessment (PZB.AA.ZZ), covers broad whole-person evaluation but does not specifically denote the act of judging treatment or disease outcome, making this a related-but-not-equivalent mapping. |
| 20481000 (Determination of prognosis) | is related to | PZB.AA.ZZ (General health assessment) | ICHI has no dedicated code for prognostic determination; PZB.AA.ZZ (General health assessment) is the nearest available construct — a whole-person evaluation that may inform prognosis — but it does not encode the specific act of forecasting disease course or treatment outcome that SNOMED 20481000 represents. |
| 423652009 (Determination of resuscitation status) | is related to | PZB.TB.ZZ (Individualised planning) | ICHI has no code for determining or documenting resuscitation status (DNR/DNAR decision-making). "Individualised planning" under "Interventions on whole person" is the closest available code, covering personalised health management planning, but it does not specifically capture the clinical act of determining resuscitation preferences. |
| 306685000 (Discharge to establishment) | is related to | UEP.TI.ZZ (Referral to health provider) | "Discharge to establishment" describes transferring or directing a patient from one setting to another (e.g., hospital to nursing home), which overlaps conceptually with referral to a health provider; however, ICHI's referral code focuses on initiating a new care relationship rather than capturing the discharge act itself, making this a related-but-not-equivalent match. |
| 304672001 (Discussion about a problem) | is related to | SGD.PP.ZZ (Counselling about having a discussion) | ICHI does not model "discussion about a problem" as a clinical intervention concept; the SGD block covers "having a discussion" as an activity/participation target (an ICF domain), not the act of discussing a clinical problem with a patient. SGD.PP.ZZ is the closest available code given the discussion framing, but the semantic fit is only loosely related. |
| 223469001 (Discussion about activity) | is related to | VEB.PN.ZZ (Advising about physical activity behaviours) | "Discussion about activity" in a clinical context most plausibly refers to advising a patient about their physical activity, for which VEB.PN.ZZ is the closest functional match. The SNOMED concept is broader (activity may not be restricted to physical activity) and "discussion" is not the same as formal advising, so the match is relatedto rather than equivalent or wider. |
| 304671008 (Discussion about behavior) | is related to | VA1.PP.ZZ (Counselling about substance-related and addictive behaviours, unspecified) | "Discussion about behavior" is a broad clinical concept with no direct ICHI equivalent; the most relevant ICHI construct is counselling targeting health-related behaviours, but all ICHI behaviour-counselling codes are tied to specific behaviour domains. VA1.PP.ZZ is one plausible match; the SNOMED concept is far broader, making this a relatedto mapping at best. |
| 439112006 (Discussion about child health) | is related to | PZB.AA.ZZ (General health assessment) | There is no ICHI code specifically representing a discussion or consultation about child health, nor any paediatric-specific encounter code; PZB.AA.ZZ (General health assessment, whole person) is the closest available concept as a broad clinical interaction, but does not capture the conversational/discussion nature of the SNOMED concept and is not paediatric-specific. |
| 223471001 (Discussion about disorder) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | There is no ICHI code specifically representing a clinical discussion about a patient's disorder or diagnosis; PZB.PP.ZZ (Counselling NEC, whole person) is the closest residual code capturing a broad supportive clinical interaction, but "counselling" is more structured than a general information-sharing discussion about a disorder. |
| 955571000000108 (Discussion about family wellbeing) | is related to | SSJ.PP.ZZ (Counselling about engaging in family relationships) | SSJ.PP.ZZ is the closest ICHI code addressing a clinical interaction focused on the family unit and its relational functioning, which overlaps substantively with a discussion about family wellbeing. However, "family wellbeing" is broader than family relationships specifically, and ICHI frames this as counselling rather than a clinical discussion. |
| 223487003 (Discussion about options) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | ICHI has no code specifically for discussing treatment options or shared decision-making; the SGD codes address "discussion" as a communication activity target, not as a clinical counselling encounter about options. PZB.PP.ZZ is the closest residual category for an unspecified clinical counselling interaction, but the match is approximate since ICHI lacks a "discussion about options/choices" construct. |
| 223486007 (Discussion about preferences) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | ICHI contains no code for eliciting or discussing patient preferences; SGD codes address "discussion" as a participation activity rather than a clinical consultation about preferences. PZB.PP.ZZ is the most reasonable residual counselling code at the whole-person level, but remains only relationally matched given the semantic gap. |
| 223483004 (Discussion about procedure) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | ICHI does not have a code for pre-procedural discussion or informed consent counselling; there is no "discussion about a health intervention" construct. PZB.PP.ZZ is the only feasible residual match, but the semantic overlap is weak since SNOMED intends a specific pre-procedure discussion rather than general counselling. |
| 84635008 (Disease process or condition education) | is related to | VFS.PM.ZZ (Education about improving health literacy) | ICHI has no generic "patient education about disease/condition" code at the whole-person level; ICHI's education (PM) action codes are all tied to specific body systems or functions, and the closest available code addressing condition-related health education broadly is the health literacy education code, which overlaps in intent but targets literacy levels rather than disease-specific teaching. |
| 788671008 (Disinfection of room using ultraviolet room disinfection system) | is related to | UBL.VL.ZZ (Environmental remediation or decontamination of indoor air) | ICHI's closest concept is environmental decontamination of indoor air (UBL.VL.ZZ), which partially overlaps with UV room disinfection as a whole-room infection-control measure, but the ICHI target is air quality rather than surfaces or a specific UV technique, making this a related rather than equivalent match. |
| 11971000224104 (Dissection of lymph node) | is related to | DFA.JK.AA (Total excision of lymph node, not elsewhere classified) | "Dissection of a lymph node" in surgical context typically refers to its removal (as in sentinel node biopsy or lymphadenectomy), but ICHI does not have a code labeled "dissection of lymph node" — the closest procedural match is total excision (DFA.JK.AA). The equivalence is "relatedto" because "dissection" can also mean surgical exposure/separation without full excision, making the semantic overlap imprecise. |
| 25291006 (Dissection of orbital fibrous bands) | is related to | BAM.FC.AA (Decompression of orbit) | ICHI has no specific code for lysis or dissection of fibrous bands within the orbit. "Decompression of orbit" (BAM.FC.AA) is the closest available code in the orbit block, as releasing fibrous bands achieves orbital decompression, but the action axis (FC = release/decompression) and the specific mechanism differ enough that this is a related rather than equivalent match. |
| 447380008 (Dissection of retroperitoneum) | is related to | KMA.FA.AA (Incision of peritoneum) | ICHI has no dedicated retroperitoneum target code or dissection action; the closest available code is "Incision of peritoneum" (KMA.FA.AA), which covers the broader peritoneal/retroperitoneal space with an incision/dissection action. The retroperitoneum is anatomically distinct from the peritoneum itself, making this a related but imprecise match. |
| 439524005 (Dissection within cavernous sinus for obliteration of carotid artery aneurysm) | is related to | IAA.LA.AA (Occlusion of intracranial artery) | ICHI has no code for cavernous sinus surgery or carotid aneurysm obliteration specifically; IAA.LA.AA (Occlusion of intracranial artery) captures the closest functional intent — permanently occluding an intracranial arterial structure — but does not represent the surgical dissection approach, the cavernous sinus location, or the aneurysm-specific context, making it only relationally associated rather than equivalent. |
| 112812002 (Division of common wall between posterior left atrium and coronary sinus with roofing of resultant defect and patch graft) | is related to | HAM.MK.AA (Repair of divided left atrium) | HAM.MK.AA sits in the "Interventions on complex congenital heart malformation, atrium" block and addresses the left atrial division (cor triatriatum-type) defect that is the anatomical basis of the SNOMED concept; however, the ICHI code covers only the repair of an already-divided atrium whereas the SNOMED concept describes the full surgical procedure including division of the common wall, roofing, and patch grafting, making this a related-but-not-equivalent match. |
| 80557002 (Drilling of bone) | is related to | MRB.FB.AA (Division of bone of unspecified site) | ICHI has no dedicated "drilling" action for bone; the closest structural intervention on unspecified bone is division (FB action axis), which overlaps mechanically but does not precisely capture drilling as a distinct technique. No narrower site-specific or instrument-specific code exists for bone drilling in ICHI. |
| 229836004 (Drilling of nail) | is related to | LBD.JB.AE (Percutaneous drainage of nail of finger) | Drilling a nail (finger or toe) is typically performed to drain a subungual haematoma, and the closest ICHI functional equivalent is percutaneous drainage of nail of finger (LBD.JB.AE) or toe (LBF.JB.AE); however the SNOMED concept is site-unspecified and the technique (drilling) is only implicit in the ICHI drainage code, making this a related but not equivalent match. |
| 270393005 (Drug addiction notification) | is related to | VAC.VC.ZZ (Public health surveillance concerning illicit drug use behaviours) | ICHI has no specific "notification" action code; public health surveillance (VC action) on illicit drug use behaviours (VAC target) is the closest available code covering the reporting/notification dimension of drug addiction, but it is broader and covers ongoing surveillance rather than a singular notification event. |
| 770915004 (Dry needling of verruca plantaris) | is related to | PZX.SP.AE (Acupuncture, not elsewhere classified, percutaneous) | Dry needling of a plantar wart uses a needle inserted percutaneously into the lesion to trigger an immune response, sharing the percutaneous needle-insertion means with acupuncture, but the clinical target (verruca plantaris on foot skin), intent (wart destruction/immune stimulation), and anatomical site are entirely different from acupuncture. |
| 86599005 (Echography, scan B-mode for placental localization) | is related to | NMR.BA.BJ (Ultrasound of fetal structure, not elsewhere classified) | No ICHI code specifically represents placental ultrasound imaging; NMR.BA.BJ (Ultrasound of fetal structure, NEC) is the closest available code under the fetal/embryonic structure block, but the target is "fetal structure" rather than the placenta itself, and the NMM (Placenta, amnion, cord) block contains no imaging codes. The SNOMED concept is a B-mode obstetric ultrasound for placental localization, which relates to but does not align precisely with this code. |
| 59241000087109 (Education about consequences of behavior) | is related to | VFZ.PM.ZZ (Education to influence other specified health-related behaviours) | ICHI frames behavioural education as interventions aimed at influencing health-related behaviours rather than teaching about consequences, and no code specifically captures "consequences of behaviour" as a topic; VFZ.PM.ZZ is the residual catch-all for other specified health-related behaviour education and is related but framed differently. |
| 1256112006 (Education about document translation service) | is related to | UEP.PM.ZZ (Education about health services, systems and policies) | ICHI has no code for education about a document translation service specifically; the closest available concept is education about health services broadly, which may encompass translation/language access services as an environmental support. The match is approximate and loses the specific subject of translation services. |
| 868263005 (Education about infectious disease) | is related to | DTB.PM.ZZ (Education about functions of the immunological system) | ICHI has no code specifically for education about infectious disease as a disease category. The closest functional analogue is education targeting the immunological system (which underpins host-pathogen responses), but the ICHI code is defined by a body function domain rather than by disease etiology, making it a related rather than equivalent match. |
| 737859001 (Education about internal cardiac defibrillator) | is related to | HT2.PM.ZZ (Education about functions of the cardiovascular system, not elsewhere classified) | ICHI contains no code for patient education specifically about an implantable cardiac defibrillator device; the nearest available code covers education about cardiovascular system function in general, which is a much broader domain that does not capture device-specific education content. |
| 710884008 (Education about managing withdrawal symptoms) | is related to | VA1.PM.ZZ (Education to influence substance-related and addictive behaviours, unspecified) | No ICHI code addresses withdrawal symptom management specifically. VA1.PM.ZZ is the most semantically proximate option, situated in the substance-related and addictive behaviours chapter, but its focus is on behaviour change rather than educating patients about how to manage the physiological and psychological symptoms of withdrawal. |
| 720849008 (Education about stroke) | is related to | HT2.PM.ZZ (Education about functions of the cardiovascular system, not elsewhere classified) | ICHI lacks a code specifically for stroke education; HT2.PM.ZZ covers cardiovascular system functions education and is the closest structural match, but stroke (cerebrovascular disease) primarily involves the cerebrovascular system rather than cardiovascular functions generally. No cerebrovascular-specific education code exists in ICHI, making this a related but imprecise mapping. |
| 710738006 (Education about symptom control) | is related to | SMH.PM.ZZ (Education in looking after one's health) | ICHI has no code for symptom control education as a generic concept; SMH.PM.ZZ (education in looking after one's health, within the self-care activities domain) is the closest broad match capturing self-management and health maintenance education. The SNOMED concept is more clinically specific to controlling symptoms of a condition, whereas ICHI's code is broader and framed around self-care activities. |
| 410332003 (Education programs case management) | is related to | PZB.TD.ZZ (Case coordination) | PZB.TD.ZZ (Case coordination) captures the coordination and management aspect of organising care for an individual, which is the closest ICHI concept to managing an education program through a case management framework; however, ICHI does not encode the education-program delivery component, making this a related rather than equivalent match. |
| 409065003 (Education programs education, guidance and counseling) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | The SNOMED concept describes a broad education program encompassing education, guidance, and counselling activities, which has no single direct ICHI equivalent; PZB.PP.ZZ represents generalised counselling for the whole person not elsewhere classified and is the closest unspecified code, but it captures only one of the three components (counselling) and misses the education/guidance program framing. |
| 306981006 (Education relating to information and organizations) | is related to | ST2.RF.ZZ (Providing opportunities for engaging in education, not elsewhere classified) | ICHI does not have a code for education specifically relating to information and organizational structures as a distinct intervention type. ST2.RF.ZZ (Providing opportunities for engaging in education, NEC) is the closest available code in the education block, covering facilitation of non-categorized educational engagement, though it does not capture the "information and organizations" content dimension of the SNOMED concept. |
| 180329009 (Electrical operative cardiac stimulation) | is related to | HFC.DL.AA (Insertion of temporary epicardial pacemaker system) | "Electrical operative cardiac stimulation" most closely aligns with intraoperative temporary epicardial pacing, and HFC.DL.AA (insertion of temporary epicardial pacemaker system, open approach) is the nearest ICHI code within the conducting system of heart block. However, "stimulation" in the operative context may refer to the act of pacing rather than device insertion, so this is a related rather than equivalent match. |
| 225089006 (Electrical stimulation of urinary bladder) | is related to | PAW.SC.BP (Pelvic floor stimulation) | ICHI contains no code specifically for electrical stimulation of the urinary bladder; there are no stimulation codes within the urinary bladder interventions block (NAI). PAW.SC.BP (pelvic floor stimulation) is the closest available code as it covers electrical stimulation in the same anatomical region and is used for bladder-related dysfunction, but it targets the perineum/pelvic floor rather than the bladder itself. |
| 1290260001 (Electrocoagulation of lesion of middle ear) | is related to | CBA.JI.AC (Local excision of lesion of middle ear, not elsewhere classified) | The middle ear block (CBA) contains no destruction code — only local excision of lesion (CBA.JI.AC). Electrocoagulation is a destructive technique distinct from excision, so this is a related but not equivalent match, representing the closest available code for a lesion intervention on the middle ear. |
| 51454005 (Electrocoagulation of prostatic bed) | is related to | NGA.GA.AA (Destruction of prostate and seminal vesicle) | The "prostatic bed" is the post-prostatectomy residual cavity, anatomically distinct from the intact prostate gland and seminal vesicle; no ICHI code targets the prostatic bed specifically, making this only a related match rather than a true equivalent or straightforward broader code. |
| 174789007 (Embolization of spleen) | is related to | IEA.LA.AF (Endovascular embolisation or occlusion of abdominal or pelvic artery) | ICHI has no dedicated code for splenic embolization and the spleen interventions block (DJA) contains only surgical approaches; splenic embolisation is performed via the splenic artery (an abdominal artery), making IEA.LA.AF the closest related code, but the match is approximate since the target in ICHI is the artery rather than the spleen as an organ. |
| 4525004 (Emergency department patient visit) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | An emergency department patient visit is an administrative/organisational encounter concept rather than a specific clinical intervention, and ICHI does not have a dedicated emergency department encounter code; PZB.ZZ.ZZ represents the closest structural match as an unspecified health management encounter. |
| 373368006 (Emergency replacement of aneurysm) | is related to | HIH.ML.AA (Reconstruction of abdominal aorta) | ICHI does not have a generic aneurysm replacement code; HIH.ML.AA is the closest structural match as open aortic reconstruction is the dominant procedure for aneurysm replacement, but the SNOMED concept is anatomically unspecified (could be any vessel) and the emergency context is not captured. |
| 410333008 (Employment case management) | is related to | SU2.TA.ZZ (Advocacy in relation to engaging in work and employment, not elsewhere classified) | ICHI has no specific "case management" code for employment; the closest concept within the "Interventions on work and employment" block (BlockL4-SU2) is SU2.TA.ZZ (advocacy/coordination in relation to employment), which shares the coordination and facilitation intent of case management but is not semantically equivalent. |
| 423606002 (End of life education, guidance and counseling) | is related to | PZB.PQ.ZZ (Psychotherapy for the whole person, not elsewhere classified) | ICHI has no dedicated code for end-of-life or palliative education and counselling; PZB.PQ.ZZ (psychotherapy for the whole person) comes closest as a holistic psychosocial intervention targeting the whole person, but it is a different modality (psychotherapy) and does not capture the educational and guidance dimensions of end-of-life care. |
| 119940009 (Endocrine gland closure) | is related to | EZZ.ZY.ZY (Other specified interventions on the endocrine system) | ICHI has no generic "endocrine gland closure" code; closure procedures in the endocrine chapter exist only at the level of specific glands (e.g. suture of thyroid EBA.MK.AA). EZZ.ZY.ZY is the best available residual category for a non-specific endocrine system intervention. |
| 119941008 (Endocrine gland reconstruction) | is related to | EZZ.ZY.ZY (Other specified interventions on the endocrine system) | ICHI has no single code for generic endocrine gland reconstruction; reconstruction codes exist only for individual glands. EZZ.ZY.ZY captures the concept as a residual endocrine system intervention, but it is a weak match because the SNOMED concept is a category-level grouper for reconstructive procedures across all endocrine glands. |
| 119942001 (Endocrine gland repair) | is related to | EZZ.ZY.ZY (Other specified interventions on the endocrine system) | ICHI has repair codes only at the individual-gland level (e.g. EBC.MK.AA repair of adrenal gland) and no pan-endocrine repair code. EZZ.ZY.ZY serves as the closest available residual category, though it is broader and action-unspecified relative to the SNOMED repair concept. |
| 119943006 (Endocrine gland transplantation) | is related to | EZZ.ZY.ZY (Other specified interventions on the endocrine system) | ICHI has transplantation codes for individual endocrine glands (EBA.KD.AA thyroid, EBB.KD.AA parathyroid, EBC.KD.AA adrenal, EBD.KD.AF islets of Langerhans) but no single code covering endocrine gland transplantation in general. EZZ.ZY.ZY is the only available non-specific assignable code for this grouper concept. |
| 274369008 (Endocrine surgical biopsy) | is related to | EZZ.ZZ.ZZ (Interventions on the endocrine system, unspecified) | ICHI has individual biopsy codes for each endocrine gland (pituitary, pineal, thyroid, parathyroid, adrenal) but no single code spanning biopsy of any endocrine gland; the only assignable residual code for the whole system does not encode the biopsy action at all, making this a related-but-not-equivalent mapping. |
| 107987003 (Endocrine system destructive procedure) | is related to | EZZ.ZZ.ZZ (Interventions on the endocrine system, unspecified) | ICHI encodes destruction gland-by-gland (e.g., thyroid EBA.GA.*, adrenal EBC.GA.BA) but provides no single code representing destruction across the endocrine system as a whole; the residual EZZ.ZZ.ZZ covers the correct system but omits the action axis. |
| 107983004 (Endocrine system excision) | is related to | EZZ.ZZ.ZZ (Interventions on the endocrine system, unspecified) | Excision codes exist for each individual endocrine gland (e.g., thyroidectomy EBA.JK.AA, adrenalectomy EBC.JK.AA) but ICHI has no cross-gland excision code for the endocrine system; the residual code is the only system-level assignable option and does not capture the excision action. |
| 107982009 (Endocrine system incision) | is related to | EZZ.ZZ.ZZ (Interventions on the endocrine system, unspecified) | Incision codes exist per gland (e.g., EBA.FA.AA thyroid, EBC.FA.AA adrenal, EAA.FA.AA pituitary) but there is no aggregate incision-of-endocrine-system code in ICHI; EZZ.ZZ.ZZ is the only assignable system-level residual, losing the incision specificity. |
| 609200008 (Endoscopic procedure on small intestine for control of hemorrhage) | is related to | KBK.LA.AF (Transcatheter embolisation for small intestinal bleeding) | ICHI contains no dedicated endoscopic haemostasis/control-of-bleeding code for small intestine; the only small-intestinal bleeding code (KBK.LA.AF) specifies a transcatheter embolisation approach rather than an endoscopic approach, making it related but not semantically equivalent. |
| 439773003 (Endovascular repair of aneurysm with transcatheter placement of wireless physiologic sensor) | is related to | HIH.DL.AF (Percutaneous transluminal insertion of device into abdominal aorta) | The SNOMED concept is a combined procedure (endovascular aneurysm repair plus wireless sensor placement); ICHI has no single code covering this combination, and HIH.DL.AF captures only the transcatheter device insertion component without the aneurysm repair or sensor-specificity, making this a related but inexact mapping. |
| 732216006 (Enteral tube care assessment) | is related to | PTB.AA.ZZ (Enterostomy assessment) | PTB.AA.ZZ covers assessment of an enterostomy, which overlaps substantially with enteral tube care assessment but is not identical — an enteral tube may be placed without a formal enterostomy (e.g. nasogastric or PEG), and the SNOMED concept emphasises ongoing tube care rather than the stoma itself. No more precise ICHI code for enteral tube assessment exists. |
| 410334002 (Environment case management) | is related to | UB1.TD.ZZ (Collaborating or building partnerships in relation to aspects of natural environment and human-made changes to environment, unspecified) | ICHI does not have a clinical "case management" concept targeting a patient's environment; UB1.TD.ZZ is the nearest structural match within ICHI's environment interventions chapter but is a population/public-health action rather than a patient-level case management intervention. |
| 410288009 (Environment education, guidance, and counseling) | is related to | UB1.PM.ZZ (Education about aspects of natural environment and human-made changes to environment, unspecified) | UB1.PM.ZZ captures the education-about-environment action within ICHI's environment chapter, but it is framed as a public health/population-level intervention rather than patient-facing education, guidance, and counseling; the match is structural rather than semantically precise. |
| 386289003 (Environmental risk protection) | is related to | UB1.VL.ZZ (Environmental remediation or decontamination to reduce threats to health, unspecified) | Environmental risk protection encompasses a broad range of actions to shield people from environmental hazards, while UB1.VL.ZZ specifically covers remediation or decontamination to reduce health threats — this captures one major component of risk protection but not the full concept (e.g., regulatory, behavioural, or engineering controls are excluded). |
| 232554003 (Epiglottopexy) | is related to | JAN.LC.AA (Arytenoidopexy) | Both JAN.LC.AA (arytenoidopexy) and epiglottopexy are fixation (-pexy) procedures on laryngeal/epiglottic structures within the same ICHI block (Interventions on larynx and epiglottis), but ICHI has no dedicated epiglottopexy code; arytenoidopexy is the closest named structural analog and shares the same action axis (LC = fixation) within the same anatomical block. |
| 172571009 (Epiretinal dissection) | is related to | BCC.MK.AA (Repair of retina) | Epiretinal dissection (peeling of a fibrocellular membrane from the retinal surface) is a surgical procedure targeting the retina, but ICHI has no specific code for membrane peeling or epiretinal membrane dissection. BCC.MK.AA (Repair of retina) is the closest retinal surgical category, though it is broader and does not specifically capture the dissection/peeling action. |
| 236266008 (Epispadias repair in female - revision procedure) | is related to | NAM.ML.AA (Reconstruction of urethra) | Epispadias repair in females involves reconstructing the urethra and associated structures; there is no ICHI-specific code for epispadias repair or revision. NAM.ML.AA (Reconstruction of urethra) is the closest available code, though it does not capture the epispadias-specific anatomy, the female sex specification, or the revision (re-do) nature of the procedure. |
| 196470000 (Epley maneuver) | is related to | CTE.PH.ZZ (Training of vestibular functions) | The Epley (canalith repositioning) maneuver is a physical maneuver to treat BPPV by repositioning displaced otoliths in the semicircular canals; ICHI has no specific code for it. CTE.PH.ZZ (Training of vestibular functions) is the closest category within the vestibular functions block, but "training" does not accurately capture a repositioning therapeutic maneuver. |
| 228582008 (Errorless learning technique) | is related to | AUB.PH.ZZ (Training of memory functions) | Errorless learning is a specific rehabilitation technique primarily used to support memory acquisition in cognitive impairment; ICHI has no dedicated code for the technique itself, but AUB.PH.ZZ (Training of memory functions) is the closest functional match as the technique is most commonly applied in memory rehabilitation contexts. |
| 712744002 (Evaluation of care plan) | is related to | PZB.TB.ZZ (Individualised planning) | ICHI has no code for evaluating/reviewing an existing care plan; PZB.TB.ZZ "Individualised planning" is the closest structural match as it concerns person-level care planning across body systems, but it captures the creation of a plan rather than its evaluation, making it related but not equivalent. |
| 441967009 (Evaluation of cerebrospinal fluid) | is related to | ABG.AH.XE (Specimen collection from spinal canal) | ICHI does not have an assignable code for laboratory analysis or evaluation of CSF; the closest procedural code is ABG.AH.XE, which covers CSF specimen collection from the spinal canal (a prerequisite act), while the actual fluid evaluation/analysis is outside ICHI's procedural scope. |
| 441813004 (Evaluation of peritoneal fluid) | is related to | KMA.AH.XE (Specimen collection of peritoneal fluid) | The ICHI classification contains no dedicated "assessment" or "evaluation" code for peritoneal fluid — the closest available code is specimen collection of peritoneal fluid (KMA.AH.XE), which is a related but procedurally distinct act (collection rather than evaluation/analysis of the fluid itself). |
| 711123008 (Evaluation of specimen care management) | is related to | PZX.AH.ZZ (Specimen collection, not elsewhere classified) | ICHI covers specimen collection activities (under the AH — Specimen collection action axis) but has no category representing the evaluation or management oversight of specimen handling processes. PZX.AH.ZZ is the closest available code in the specimen domain, but the SNOMED concept concerns quality/process evaluation of specimen management rather than the act of collection itself, making this only a related concept. |
| 442514001 (Evaluation of stool specimen) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI does not have a category for evaluating/examining a stool specimen (e.g., macroscopic or microscopic analysis); the closest code is PZX.AH.XG (Specimen collection of faeces), which covers the collection act rather than the evaluation/analysis of the collected specimen. These are related but distinct steps in the diagnostic process. |
| 442564008 (Evaluation of urine specimen) | is related to | PZX.AH.XB (Specimen collection of urine) | ICHI contains a code for collecting a urine specimen (PZX.AH.XB) but no separate code for evaluating or analysing a collected urine specimen; the closest structural equivalent captures the specimen-collection step rather than downstream evaluation. The two concepts are closely related but not semantically equivalent — SNOMED describes the analytic evaluation whereas ICHI describes the pre-analytic collection act. |
| 713591001 (Ex vivo cultured autologous oral mucosal epithelial cell transplant to ocular surface) | is related to | BBB.KD.AA (Corneal transplant) | This SNOMED concept describes a highly specific cell-based regenerative procedure targeting the ocular surface (limbal stem cell deficiency treatment), which ICHI does not represent — the closest available code is corneal transplant, but that refers to transplanting corneal tissue rather than cultured mucosal epithelial cells; the procedures are related but clinically and technically distinct. |
| 440365000 (Excision of epiphyseal bar with autogenous soft tissue graft) | is related to | MRB.JI.AA (Local excision of lesion of bone of unspecified site) | ICHI has no specific code for epiphyseal bar (physeal bridge) resection; the closest is local excision of a bone lesion at an unspecified site, which partially captures the excision component. The autogenous soft tissue graft — a distinct and clinically important second surgical act — is entirely absent from this code, making the match only loosely related. |
| 49266009 (Excision of hydrocele) | is related to | NGL.FA.AA (Incision of testis and tunica vaginalis) | Hydrocelectomy involves surgical intervention on the tunica vaginalis (excision or eversion), and this ICHI code is the only one that explicitly addresses the tunica vaginalis in a surgical context. However, the ICHI action is incision rather than excision, and the code also implicates the testis itself, so it is related but not a direct equivalent of hydrocele excision. |
| 449180008 (Excision of vascular graft of extremity) | is related to | IZE.JJ.AA (Partial excision of blood vessel, not elsewhere classified) | ICHI has no specific code for removal of an implanted vascular graft, and the closest actionable code (partial excision of blood vessel NEC) does not capture the implanted graft nature of the target or the extremity location; site-specific codes such as IFA.JJ.AA (lower limb artery) or ICA.JJ.AA (upper limb artery) exist but cover native vessel excision, not graft removal, making all options only relationally equivalent. |
| 9104009 (Exploration of soft tissue) | is related to | LZZ.AE.AA (Open exploration of skin and subcutaneous cell tissue, not elsewhere classified) | ICHI has no generic "exploration of soft tissue" code spanning all soft tissue sites; LZZ.AE.AA is the closest structural match (open exploration of superficial soft tissue NEC under the integumentary system), but it is restricted to skin and subcutaneous tissue rather than the full range of soft tissue structures the SNOMED concept encompasses. |
| 363122004 (Exploration of trunk) | is related to | PAK.AE.AA (Exploratory laparotomy) | ICHI has no single code for exploration of the trunk as a whole; PAK.AE.AA is the most representative exploratory procedure of the trunk region available (abdominal exploration via laparotomy), but it covers only the abdominal sub-region of the trunk and does not extend to the thoracic or other trunk compartments that the SNOMED concept encompasses. |
| 310602001 (Expression of retained products of conception) | is related to | NME.JB.AC (Suction curettage of uterus) | "Expression of retained products of conception" refers to manual or mechanical expulsion of residual uterine contents after delivery or miscarriage, which is conceptually a drainage/evacuation of the uterus; suction curettage is the closest ICHI procedure for removing uterine contents, but it denotes a specific mechanical technique (vacuum aspiration) rather than the broader act of expression/expulsion, making this a related rather than equivalent match. |
| 1303774005 (Extensive debulking of neoplasm of female reproductive organs) | is related to | NME.JL.AA (Radical abdominal hysterectomy) | Extensive debulking (cytoreductive surgery) of female reproductive neoplasms is a multi-organ resection procedure — typically including uterus, ovaries, tubes, and peritoneal deposits — that has no direct ICHI equivalent; radical abdominal hysterectomy is the closest single ICHI code (covering the most extensive uterine excision), but it does not capture the multi-organ scope or the cytoreductive intent of debulking, making this only a related match. |
| 80104006 (Exteriorization of carotid artery) | is related to | IBB.FA.AA (Incision of carotid artery, extracranial) | Exteriorization of the carotid artery involves surgically mobilising and bringing the vessel to the surface (often as part of a staged procedure or repair), which is distinct from a simple arteriotomy (incision); ICHI has no dedicated exteriorization action code for arteries, and incision of the extracranial carotid artery is the closest available procedure in the same anatomical target block, but the concepts are not semantically equivalent. |
| 1287556004 (Exteriorization of cricoid) | is related to | JAN.FA.AA (Incision of larynx) | The cricoid cartilage is part of the larynx, and ICHI does not have a dedicated cricoid code or an exteriorization action axis value; incision of the larynx (open approach) is the closest structural match within the larynx block, but it does not capture the specific concept of surgically exposing/exteriorizing the cricoid cartilage. |
| 408840008 (Extra-amniotic termination of pregnancy) | is related to | NMM.DB.AE (Injection or infusion into amnion) | Extra-amniotic termination of pregnancy is performed by injecting an abortifacient (e.g. prostaglandin) into the extra-amniotic space via a catheter; ICHI's NMM.DB.AE captures the injection/infusion into the amnion component but does not encode the termination-of-pregnancy intent or the extra-amniotic route specifically. No ICHI code combines the pregnancy termination purpose with an extra-amniotic/transcervical injection approach, so this is a related but not directly equivalent match. |
| 443610008 (Extraction of obstructive material from central venous device) | is related to | HIB.JE.AA (Extraction of obstruction of superior vena cava) | No ICHI code specifically addresses clearing an obstruction (e.g., thrombus, fibrin sheath) from within a central venous catheter/device. The closest codes are vessel-level obstruction extractions such as HIB.JE.AA (superior vena cava) or HIC.JE.AA (inferior vena cava), but these describe removing obstruction from the vessel wall/lumen, not from within a central venous access device itself, making this only a related match. |
| 225363004 (Eye care) | is related to | BZA.AA.ZZ (Assessment of eye, not elsewhere classified) | "Eye care" is a broad administrative/clinical concept encompassing assessment, treatment, and management of eye conditions, which no single ICHI code represents; BZA.AA.ZZ captures only the assessment dimension and is the closest available leaf-level code in the visual system chapter, but the match is only relational rather than semantically equivalent. |
| 1269515004 (Face to face consultation with patient) | is related to | PZB.AN.ZZ (Interview in relation to the whole person) | ICHI classifies what clinical action is performed, not the delivery mode (in-person vs. remote), so there is no "face-to-face consultation" as such. The closest assignable code is PZB.AN.ZZ (Interview in relation to the whole person), which captures a structured clinical interaction with the patient, but it is narrower in scope than the SNOMED concept which encompasses any direct patient encounter. |
| 1217461009 (Facilitation of ability to communicate about dying process) | is related to | SGA.PP.ZZ (Counselling about having a conversation) | ICHI has no concept for facilitation of communication about death or dying — searches for "dying," "death," "end of life," and "palliative" returned no results. The closest assignable code is SGA.PP.ZZ (Counselling about having a conversation), which captures a supported communication activity but does not encode the specific subject matter (dying process). |
| 711119000 (Facilitation of ability to communicate needs) | is related to | SGA.RB.ZZ (Practical support with having a conversation) | ICHI does not have a code specifically for facilitating a person's ability to express their needs; the concept straddles communication support and rehabilitation. The best available assignable code is SGA.RB.ZZ (Practical support with having a conversation), which is action-oriented support for conversational communication, but does not encode the specific goal of needs expression. |
| 711120006 (Facilitation of acceptance of aging) | is related to | ATF.PP.ZZ (Counselling for global psychosocial functions) | Acceptance of aging is a psychosocial adjustment intervention with no direct ICHI equivalent; counselling for global psychosocial functions (which includes identity, personality, and adaptation) is the closest available code. The ICHI code is broader, covering all psychosocial counselling rather than aging-specific acceptance work. |
| 871527004 (Facilitation of access to mental health service) | is related to | UEP.TI.ZZ (Referral to health provider) | Facilitating access to a mental health service most closely corresponds to referral to a health provider in ICHI, as both describe connecting an individual to a health service. The ICHI code does not specify mental health and covers referrals to any provider, making it wider in scope. |
| 1155839009 (Facilitation of activity of daily living) | is related to | SM1.RB.ZZ (Practical support with self care, unspecified) | ICHI's self care block (SM1) covers ADL-related activities, and "practical support" aligns with the concept of facilitation; however, the SNOMED concept encompasses all ADLs broadly while SM1.RB.ZZ is scoped to self-care tasks only, excluding domestic and mobility ADLs covered under other ICHI blocks. |
| 711118008 (Facilitation of alcohol abuse recovery) | is related to | VAA.PP.ZZ (Counselling about alcohol use behaviours) | ICHI's VAA block specifically addresses interventions on alcohol use behaviours, and counselling (VAA.PP.ZZ) is the most generic clinical intervention for facilitating recovery from alcohol abuse. The SNOMED concept implies a broader recovery-facilitation role that may encompass multiple modalities beyond counselling alone. |
| 1156689009 (Facilitation of compliance to regime) | is related to | VD1.PP.ZZ (Counselling about health service-related behaviours, unspecified) | Compliance to a treatment/care regime is a health service-related behaviour, and counselling is a principal clinical approach to promote and sustain it. However, ICHI frames this as counselling about a category of behaviour rather than an explicit "facilitation of compliance" action; "regime" in SNOMED may also encompass non-health-service behaviours (e.g. diet, exercise) that VD1 does not fully cover. |
| 711116007 (Facilitation of drug abuse recovery) | is related to | VAC.PP.ZZ (Counselling about illicit drug use behaviours) | Counselling about illicit drug use is the closest assignable ICHI code to facilitating drug abuse recovery, but SNOMED's concept implies a broader recovery support process (which could include peer support, practical assistance, and rehabilitation) beyond counselling alone, and ICHI does not have a dedicated "recovery facilitation" code. |
| 711121005 (Facilitation of family ability to participate in care plan) | is related to | UCB.VA.ZZ (Capacity building targeting support from immediate family) | Building the capacity of immediate family to provide support is the closest ICHI concept to facilitating family ability to participate in a care plan, as both involve strengthening the family's role in health support; however, ICHI does not specifically reference a care plan context, and "capacity building" is a population/system-level action axis somewhat broader than the individual facilitation implied by the SNOMED concept. |
| 711115006 (Facilitation of financial recovery) | is related to | SVG.RB.ZZ (Practical support with engaging in economic self-sufficiency) | Economic self-sufficiency is the closest ICHI target to financial recovery, and practical support aligns with the facilitative nature of the SNOMED concept; however, SNOMED's "financial recovery" implies restoring financial standing (often post-illness or crisis) which is more specific than the broader ICF-based concept of economic self-sufficiency. |
| 408589008 (Falls assessment) | is related to | VCC.AA.ZZ (Assessment of home safety behaviours) | ICHI does not have a specific falls risk assessment code; VCC.AA.ZZ is the closest available code, covering assessment of home safety behaviours, which overlaps substantially with falls assessment in clinical practice (home hazard evaluation, fall risk factors) but is scoped to home safety behaviours rather than individual patient fall risk per se. |
| 390997009 (Falls education) | is related to | VCC.PM.ZZ (Education to influence home safety behaviours) | ICHI has no dedicated falls education code; VCC.PM.ZZ captures education targeting home safety behaviours, which is the dominant context of falls prevention education, but the ICHI code is broader (encompasses all home safety, not just falls) and anchored to behaviour change rather than patient-centred health education strictly. |
| 1367947008 (Femtosecond laser assisted cataract surgery and implantation of intraocular lens) | is related to | BBF.JK.AE (Phacoemulsification of lens) | ICHI has no dedicated code for femtosecond laser-assisted cataract surgery; BBF.JK.AE (Phacoemulsification of lens) is the closest comparator for cataract extraction by fragmentation technique, but it does not capture the femtosecond laser modality nor the combined intraocular lens implantation that is integral to the SNOMED concept — a compound procedure that ICHI does not represent as a single code. |
| 71543002 (Fenestration of aorta) | is related to | HIG.FA.AA (Incision of descending thoracic aorta) | ICHI does not contain a specific fenestration code for the aorta (a procedure typically performed to create a communication between true and false lumens in aortic dissection); the closest available concept is incision of the descending thoracic aorta (HIG.FA.AA), which shares the operative target and an opening action but does not capture the fenestration-specific technique or its non-site-specific nature across all aortic segments. |
| 71492005 (Fenestration of cardiac valve) | is related to | HDF.LG.AA (Closed mitral valvotomy) | ICHI has no generic "fenestration of cardiac valve" code; valvotomy (HDF.LG.AA, closed mitral valvotomy) is the most functionally related procedure — both involve opening or creating an aperture in a valve leaflet — but the SNOMED concept is non-specific to valve type whereas this ICHI code is mitral-specific, and the procedural techniques differ (fenestration vs. valvotomy). |
| 447221008 (Fenestration of cyst of arachnoid) | is related to | AAG.JI.AA (Local excision of lesion of intracranial space) | ICHI has no dedicated "fenestration of arachnoid cyst" code; AAG.JI.AA (local excision of lesion of intracranial space) is the closest available concept, covering removal/opening of an intracranial space lesion. Fenestration (marsupialization) of a cyst is functionally related but not semantically identical to local excision, and the arachnoid is part of the meninges rather than the intracranial space proper. |
| 31694007 (Fenestration of intervertebral disc) | is related to | MBV.GA.AA (Destruction of intervertebral disc, not elsewhere classified) | ICHI contains no fenestration code for the intervertebral disc; disc fenestration (puncturing/venting the annulus fibrosus) is mechanically related to destructive interventions on the disc, making MBV.GA.AA the closest available code, though "destruction" is not semantically equivalent to "fenestration." |
| 446067007 (Fenestration of lamina of vertebra) | is related to | MBZ.JJ.AA (Partial ostectomy of vertebra, not elsewhere classified) | ICHI does not have a code for fenestration (laminotomy/laminoforaminotomy) of the vertebral lamina specifically; MBZ.JJ.AA (partial ostectomy of vertebra, NEC) is the nearest available concept since laminar fenestration involves removing a portion of vertebral bone, though "partial ostectomy" is broader and does not specify the lamina as the target sub-structure. |
| 239337009 (Fenestration of maxilla) | is related to | MAF.FA.AA (Osteotomy of maxillary bone) | ICHI has no specific "fenestration of maxilla" code; the closest intervention on the maxillary bone is osteotomy (MAF.FA.AA), which involves cutting the bone but does not specifically describe creating a fenestration (window/opening). The procedure families are related but not semantically equivalent. |
| 830199004 (Fenestration of optic nerve sheath) | is related to | BAM.FA.AA (Orbitotomy) | ICHI has no specific code for optic nerve sheath fenestration; the optic nerve sheath lies within the orbit, and the closest anatomically relevant surgical intervention is orbitotomy (BAM.FA.AA — incision of the orbit). This is only a broad relatedto match, as the target (nerve sheath) and operative detail (fenestration vs. generic incision/approach) differ substantially. |
| 233103000 (Fenestration of patch of ventricular septum) | is related to | HBD.LK.AA (Enlargement of ventricular septal defect) | Fenestration of a ventricular septal patch deliberately creates or enlarges an opening through a previously placed patch, which functionally resembles enlargement of a ventricular septal defect (HBD.LK.AA). However, the SNOMED concept specifies an intervention on an existing surgical patch rather than native septal tissue, making this a relatedto match rather than equivalent. |
| 264952001 (Fenestration of pleura) | is related to | JCA.JJ.AA (Partial excision of pleura) | ICHI contains no specific code for pleural fenestration (creating an opening/window in the pleura). The closest available code is partial excision of pleura (JCA.JJ.AA), as both procedures involve removing or opening a portion of the pleural membrane, but excision and fenestration are distinct operative techniques and the match is only approximate. |
| 261532007 (Fenestrectomy) | is related to | CCA.ML.AA (Fenestration of inner ear with graft) | Fenestrectomy is a historical otosclerosis operation creating a new fenestra (window) in the lateral semicircular canal of the bony labyrinth — related to but distinct from graft-based fenestration, since it does not inherently involve a graft. CCA.ML.AA is the closest available code but does not precisely match the action. |
| 243773009 (Fetal blood sampling) | is related to | NMR.AD.AD (Biopsy of fetal structures) | ICHI has no dedicated code for fetal blood sampling (e.g. scalp blood sampling or cordocentesis); "Biopsy of fetal structures" is the closest structural specimen-collection act on the fetus, but it denotes tissue biopsy rather than blood-specimen collection. |
| 75444003 (Fetal electrocardiogram) | is related to | HTB.AC.AH (Electrocardiogram, not elsewhere classified) | ICHI has no fetus-specific ECG code; HTB.AC.AH is the residual ECG category under cardiac function interventions and could accommodate a fetal ECG, but it is conceptually oriented to the patient (not the fetus), making this only a related match. |
| 472826006 (Fetal kinetocardiography) | is related to | NMR.AI.AC (Internal fetal monitoring) | Kinetocardiography records fetal cardiac motion vibrations and is a form of fetal cardiac assessment, but ICHI's "Internal fetal monitoring" specifically refers to invasive intrapartum monitoring (e.g. scalp electrode), whereas kinetocardiography is non-invasive external — related but differing substantially in modality. |
| 391898007 (Fetal oxytocin stress test) | is related to | NUE.AI.ZZ (Monitoring of functions related to pregnancy) | The oxytocin (contraction) stress test monitors fetal heart rate response to induced uterine contractions; ICHI has no specific code, and NUE.AI.ZZ encompasses many other pregnancy-monitoring interventions and does not capture the oxytocin-provocation aspect at all. |
| 1029002 (Fetoscopy) | is related to | NMM.AE.AE (Amnioscopy) | ICHI has no dedicated fetoscopy code; amnioscopy is the closest procedure in the same placenta/amnion/cord block, but amnioscopy specifically visualises the amniotic sac and membranes whereas fetoscopy directly visualises the fetus and placental surface. |
| 386307002 (Fire-setting precautions) | is related to | VBC.TM.ZZ (Environment modification to influence community violence behaviours) | Fire-setting precautions are an environmental safety measure for a patient with dangerous behaviour; VBC.TM.ZZ captures the environmental/structural intervention angle, though fire-setting as a psychiatric risk behaviour (pyromania) is not directly represented in ICHI. |
| 290042003 (Fit tinnitus masker) | is related to | PAB.DP.AH (Installation of assistive product to head or neck) | No specific ICHI code exists for tinnitus masker fitting; a tinnitus masker is an assistive device worn at/around the ear, so "Installation of assistive product to head or neck" is the closest structural match, though it lacks the tinnitus-specific functional context. |
| 444800009 (Fitting of antithromboembolic stockings) | is related to | PNA.DP.AH (Installation of assistive product to lower limb, not elsewhere classified) | ICHI has no code specifically for antithromboembolic or compression stockings; the best structural match is installing an assistive product to the lower limb, but this code does not capture the thromboembolism-prevention intent or the specific garment type. |
| 1285646006 (Fitting of cleft lip or palate strapping appliance) | is related to | KAA.LC.AA (Fixation of lip) | There is no ICHI code for presurgical nasoalveolar molding or cleft lip/palate strapping appliances; KAA.LC.AA shares the target anatomy and the concept of externally supporting lip tissue, but it does not capture the palate component, the appliance nature, or the presurgical orthopedic intent. |
| 42300004 (Fixation of tendon) | is related to | MRT.MK.AA (Repair of tendon of unspecified site) | ICHI has no "fixation of tendon" code using the LC (suspension/fixation) action axis for musculoskeletal tendons — the tendon intervention set only includes release, division, repair, reconstruction, transfer, and lengthening. Repair of tendon at unspecified site (MRT.MK.AA) is the closest structural intervention on tendons, but "fixation" (anchoring/stabilising tendon to bone) and "repair" are distinct surgical actions, making this only a related concept. |
| 288095001 (Flap/pedicle graft revision) | is related to | LZZ.MK.AA (Repair of skin and subcutaneous cell tissue, not elsewhere classified) | ICHI has no specific code for flap or pedicle graft revision. The closest concept is LZZ.MK.AA (repair of skin and subcutaneous cell tissue, NEC), which covers surgical correction of skin/soft tissue — the revision of a flap or pedicle graft is a repair-type intervention on skin/subcutaneous tissue, but the ICHI code does not capture the specific nature of revising a prior flap or pedicle graft. |
| 276026009 (Fluid balance regulation) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | The SNOMED concept refers to the active regulation (management) of fluid balance, while ICHI's closest assignable code covers only the assessment of water, mineral, and electrolyte balance function. No ICHI intervention code for fluid balance regulation or management exists; the block `BlockL5-ETE` is organisational only. |
| 716887009 (Fluid input management) | is related to | SMG.AB.ZZ (Measurement of fluid intake) | ICHI's `SMG.AB.ZZ` covers measurement of fluid intake under self-care interventions, which is related but narrower than the SNOMED concept of fluid input management, which implies active oversight and adjustment rather than measurement alone. |
| 414273009 (Fluorescein staining of eye) | is related to | BBE.AA.AH (Assessment of anterior chamber of eye) | Fluorescein staining of the eye is a topical diagnostic procedure used to assess the ocular surface and anterior segment; ICHI has no code for fluorescein staining specifically (the three fluorescein codes in ICHI are all angiography), so the generic anterior chamber assessment code is the closest applicable intervention, though it does not capture the fluorescein staining technique. |
| 431651003 (Fluoroscopy guided percutaneous repositioning of temporary filter of superior vena cava with contrast) | is related to | HIB.DL.AA (Insertion of filter in superior vena cava) | ICHI has no code for repositioning (action LD) of a filter in the superior vena cava; the closest available code covers initial filter insertion into the SVC, which is a related but distinctly different procedure step from repositioning a previously placed temporary filter. |
| 431313005 (Fluoroscopy guided repositioning of central venous catheter with contrast) | is related to | IZD.SN.AF (Maintaining intravenous access) | ICHI has no dedicated code for repositioning a central venous catheter; "Maintaining intravenous access" is the closest related concept covering ongoing management of vascular access, but it does not capture the specific repositioning action or fluoroscopic guidance with contrast. |
| 385955003 (Foot care) | is related to | SMC.RA.ZZ (Performing the task of caring for body parts) | ICHI has no dedicated clinical "foot care" code; SMC.RA.ZZ sits in the self-care/activities-and-participation domain and refers to performing care of body parts as a functional activity, which is conceptually related but does not capture the clinical nursing or therapeutic dimensions implied by the SNOMED concept. |
| 127590006 (Forearm tendon exteriorization cineplasty) | is related to | MFM.ML.AA (Reconstruction of muscle of forearm) | Cineplasty is a procedure where a forearm muscle/tendon loop is tunnelled through skin to create a living motor for a prosthetic limb; ICHI has no dedicated code for this technique, and while MFM.ML.AA is in the correct anatomical region, it does not capture the tunnelling/exteriorisation concept or prosthetic-coupling purpose. |
| 278725006 (Frontal incision) | is related to | LZZ.FA.AA (Incision of skin and subcutaneous cell tissue, not elsewhere classified) | "Frontal incision" denotes a skin and soft-tissue incision over the frontal region of the skull, which is closest to incision of skin and subcutaneous tissue; LZZ.FA.AA is the residual NEC code because ICHI has no specific head/neck skin incision category, and the concept is a surgical approach step rather than a standalone therapeutic procedure. |
| 172929003 (Functional endoscopic sinus surgery - postoperative suction clearance under local anesthetic) | is related to | JAE.JB.AC (Drainage of paranasal sinus through natural ostium, not elsewhere classified) | ICHI has no code for endoscopic sinus suction clearance as a postoperative procedure; suction/clearance of the sinus cavity through the natural ostium (via endoscopy) is conceptually closest to JAE.JB.AC (drainage through the natural ostium), but the SNOMED concept emphasises suction/aspiration of debris rather than formal drainage, and specifies a postoperative context not reflected in ICHI. |
| 122501008 (Fusion) | is related to | MRJ.LE.AA (Arthrodesis of joint of unspecified site) | The SNOMED concept "Fusion" is a generic, unqualified term that could refer to joint fusion (arthrodesis), spinal fusion, or tissue fusion of any body part; MRJ.LE.AA represents arthrodesis of a joint at an unspecified site, which is the most general fusion code available in ICHI but still presupposes a joint target. If a spinal or other body-part fusion is intended, MBZ.LE.AA (Spinal fusion, NEC) would be an alternative, but the SNOMED concept is too broad for an equivalent match. |
| 87193006 (Fusion-stabilization and immobilization) | is related to | MBZ.LE.AA (Spinal fusion, not elsewhere classified) | The SNOMED concept combines fusion with stabilisation and immobilisation as a compound procedure concept, which most commonly applies to the spine; ICHI encodes fusion and external immobilisation as separate codes (e.g. MBZ.LE.AA for spinal fusion and MBZ.LC.AH for external immobilisation of spine), so no single ICHI code captures the combined meaning. MBZ.LE.AA is chosen as the primary related code since fusion is the dominant surgical element, but the stabilisation/immobilisation component is not represented. |
| 410339007 (Gait training case management) | is related to | MVG.PH.ZZ (Training of gait pattern) | The SNOMED concept specifically denotes case management (care coordination and oversight) around gait training, which is an administrative/supervisory function rather than the direct therapeutic training itself. MVG.PH.ZZ is the closest ICHI code in the gait domain but captures the training intervention, not case management of it; no ICHI code for gait-related case management exists. |
| 408876009 (Gastric care) | is related to | KZZ.ZZ.ZZ (Interventions on the digestive system, unspecified) | "Gastric care" is a broad nursing management concept with no specific ICHI category; the nearest assignable code is the digestive system residual, which is far wider than the stomach-specific care concept. No ICHI category captures unspecified/general gastric care, so this is a related-but-not-equivalent match. |
| 118160005 (Gastrointestinal tract manipulation) | is related to | KZZ.ZZ.ZZ (Interventions on the digestive system, unspecified) | ICHI has organ-specific manipulation codes (small intestine, colon) but no single code for GI tract manipulation as a whole; the digestive system residual is the only digestive-system-wide assignable code, making it related but not semantically equivalent to the SNOMED manipulation concept. |
| 385813006 (Gastrostomy/nasogastric tube irrigation assessment) | is related to | PTA.AA.ZZ (Gastrostomy assessment) | PTA.AA.ZZ covers assessment of a gastrostomy artificial body opening, which aligns with the gastrostomy component of this SNOMED concept; however, ICHI has no equivalent code for nasogastric tube irrigation assessment specifically, and the irrigation aspect (flushing a tube) is distinct from a general gastrostomy assessment, making this a related but not equivalent match. |
| 391151002 (General psychiatric care of older adults - Part day : day care) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI has no concept for partial-day psychiatric care programmes or age-specific mental health day services; the closest available code is the residual "Health management encounter, unspecified" (PZB.ZZ.ZZ) under Interventions on the whole person, which captures the encounter type but none of the psychiatric, geriatric, or part-day specificity. |
| 423641003 (Genetic evaluation case management) | is related to | PZB.TD.ZZ (Case coordination) | ICHI has no code for genetic-specific case management or evaluation; PZB.TD.ZZ "Case coordination" under Interventions on the whole person captures the coordination/management dimension of the SNOMED concept but loses the genetic evaluation specificity entirely. |
| 53973008 (Genetic investigation procedure) | is related to | PYA.PP.ZZ (Genetic counselling) | The "Interventions on genome" block (BlockL4-PYA) contains only one assignable code — PYA.PP.ZZ "Genetic counselling" — and there is no ICHI code for genetic investigation, testing, or analysis; PYA.PP.ZZ is within the correct target axis (genome) but represents a counselling action rather than an investigative procedure, making it a related but inexact match. |
| 405824009 (Genetic test) | is related to | PYA.PP.ZZ (Genetic counselling) | ICHI contains no code for genetic testing, molecular diagnostics, or genomic analysis — the sole assignable code in the genome intervention block is "Genetic counselling" (PYA.PP.ZZ), which represents a different action (counselling vs. testing) on the same target axis, making it only relationally associated rather than a meaningful procedural match. |
| 243770007 (Gonadal vein sampling catheter procedure) | is related to | DIA.AH.XA (Specimen collection of blood) | ICHI has no code for selective catheter-based venous sampling from the gonadal vein specifically; the general blood specimen collection code (DIA.AH.XA) captures the sampling intent but does not represent the selective venous catheterisation approach or the gonadal vein target, making it only relationally associated rather than a close match. |
| 112852000 (Graft to buccal sulcus) | is related to | KAZ.LK.AC (Extension or deepening of buccolabial or lingual sulcus of oral cavity, not elsewhere classified) | KAZ.LK.AC is the only ICHI code that directly addresses the buccal sulcus as a surgical target, and sulcus grafts are clinically performed to deepen or extend the sulcus (LK action), making this the closest available code; however, the LK action (extension/deepening) does not fully capture the graft concept, so the match is related rather than equivalent. |
| 14356008 (Grafting of inner ear) | is related to | CCA.ML.AA (Fenestration of inner ear with graft) | CCA.ML.AA is the only inner ear code in ICHI that involves a graft, but it specifically describes fenestration with graft — a distinct procedure (creating a new window in the bony labyrinth) — rather than grafting of the inner ear in general; the procedures are related but not equivalent. |
| 50128001 (Grafting of mediastinal fat to myocardium) | is related to | BlockL5-HFD (Interventions on myocardium) | ICHI has no assignable code for fat/tissue grafting to the myocardium — the myocardium block (BlockL5-HFD) contains only biopsy, imaging, and transmyocardial revascularisation codes, none of which capture the transplantation of mediastinal fat as a revascularisation adjunct. The block is the closest organisational grouping available, making this a relatedto match at block level rather than a precise category assignment. |
| 6231003 (Grafting of palate) | is related to | KAS.ML.AA (Reconstruction of soft palate) | ICHI has reconstruction codes for soft palate (KAS.ML.AA) and hard palate (KAT.ML.AA) but no single code for "palate" as a whole, and no code using an explicit grafting action (ML = reconstruction/graft is the closest). Because the SNOMED concept does not specify soft vs. hard palate, neither ICHI code alone is equivalent; the soft palate code is the most commonly grafted site and is chosen as the best approximate match, but it is only relatedly equivalent given the ambiguity. |
| 80215007 (Grafting of pericardium) | is related to | HFF.MK.AA (Repair of pericardium) | ICHI has no reconstruction or graft code for the pericardium — the pericardium block (BlockL5-HFF) contains repair (HFF.MK.AA) as the closest structural intervention but uses the MK (repair) action rather than ML (reconstruction/graft). Grafting of pericardium is semantically closer to repair than to any other available code, but the match remains approximate. |
| 1344723008 (Grafting of tissue to upper limb) | is related to | LAE.ML.AA (Skin graft to upper limb) | ICHI's LAE.ML.AA is specific to skin grafts to the upper limb, while the SNOMED concept covers grafting of any tissue (skin, muscle, bone, nerve, vascular) to the upper limb. The SNOMED concept is broader in tissue type but shares the same anatomical target and graft action. |
| 1268963001 (Group consultation) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI does not have a specific code for a group consultation; the extension XG4M55 ("Person/patient — group") indicates that ICHI encodes group recipients via extension rather than as a standalone intervention type. PZB.ZZ.ZZ is the closest base concept. |
| 278218003 (Guanethidine block) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | Guanethidine block is an intravenous regional sympathetic blockade procedure; ICHI has no code for this specific technique or for guanethidine as an agent. ADA.ZZ.ZZ is related but far too broad to be even an inexact match. |
| 431764009 (Guide wire recanalization of central venous catheter using fluoroscopic guidance with contrast) | is related to | IDB.LH.AF (Percutaneous transluminal dilatation with insertion of device into vein of thorax) | ICHI has no specific code for guide wire recanalization of a central venous catheter under fluoroscopy with contrast; the closest code is percutaneous transluminal dilatation with device insertion into the vein of the thorax, but it does not capture catheter maintenance/recanalization intent or fluoroscopic-with-contrast means. |
| 1129491000000109 (Guided self-help) | is related to | PZB.PQ.ZZ (Psychotherapy for the whole person, not elsewhere classified) | ICHI has no specific code for guided self-help as a structured low-intensity psychological intervention; the closest is psychotherapy for the whole person NEC, which shares the therapeutic intent but is broader and does not capture the self-directed-with-guidance modality. |
| 709089003 (Harvesting of buccal mucosa) | is related to | LZZ.JH.AA (Procurement of skin and subcutaneous tissue for graft or flap, not elsewhere classified) | ICHI has no dedicated procurement code for buccal/oral mucosa; the closest procurement code in the integumentary chapter covers soft tissue harvesting NEC, but buccal mucosa is mucosal rather than skin/subcutaneous tissue. |
| 180846004 (Harvesting of digit) | is related to | MGB.JH.AA (Procurement of bone of hand or finger) | ICHI has no code for procurement of a whole digit; MGB.JH.AA covers procurement of bone of hand or finger for graft, the closest structural match but limited to bone rather than the entire digit including soft tissue. |
| 74909004 (Harvesting of ligament) | is related to | MRS.JH.AA (Procurement of fascia of unspecified site for graft) | ICHI lacks a dedicated ligament procurement code at an unspecified site; MRS.JH.AA covers procurement of fascia (a related connective tissue) and is the best available approximation. The only true ligament procurement code (MGL.JH.AA) is restricted to hand or finger. |
| 709107002 (Harvesting of mucous membrane of nose) | is related to | LZZ.JH.AA (Procurement of skin and subcutaneous tissue for graft or flap, not elsewhere classified) | ICHI has no procurement code specific to nasal mucosa; LZZ.JH.AA is the closest available NEC procurement code in the integumentary chapter, but nasal mucosa is mucosal rather than cutaneous tissue. |
| 1288013003 (Harvesting of stem cells with cryopreservation) | is related to | DGA.JH.AE (Aspiration of bone marrow from donor for transplant) | ICHI has no code combining stem cell harvesting with cryopreservation; the closest code covers bone marrow/stem cell aspiration from a donor but does not capture the cryopreservation component and is restricted to bone marrow rather than stem cells broadly. |
| 119795007 (Head artery destructive procedure) | is related to | IBA.LA.AA (Occlusion of artery of head and neck) | ICHI does not have a general "destruction of artery" action for head arteries; the closest concept is occlusion (LA), which achieves functional destruction of flow, but is a specific technique rather than a general destructive category, and the target also encompasses neck arteries. |
| 410314003 (Health promotion education, guidance, and counseling) | is related to | VFS.PM.ZZ (Education about improving health literacy) | ICHI has no single code combining education, guidance, and counseling for general health promotion; VFS.PM.ZZ is the closest match in the health-related behaviours chapter, but "health literacy" is narrower than the broad health promotion concept. |
| 386317007 (Healthcare information exchange) | is related to | UEP.TD.ZZ (Collaboration relating to health services, systems and policies) | ICHI contains no code specifically representing information exchange between healthcare entities; UEP.TD.ZZ is the nearest conceptual match, as information exchange is a form of inter-organisational collaboration within health systems. |
| 385903004 (Hearing aid care management) | is related to | CBA.SM.AC (Management of prosthetic device of the middle ear, not elsewhere classified) | ICHI has no dedicated code for hearing aid care management; CBA.SM.AC covers management of middle ear prosthetic devices, but hearing aids are external assistive devices rather than implanted prosthetics. |
| 229571007 (Heat pad treatment) | is related to | PZA.SD.BQ (Warming of central body temperature) | ICHI contains no code specifically for superficial heat pad/pack application as a physiotherapy modality; PZA.SD.BQ is the only heat-based warming intervention code but relates to systemic/central warming rather than localised topical heat application. |
| 257858005 (Heater probe treatment) | is related to | KBF.LA.AD (Endoscopic control of gastric bleeding) | Heater probe treatment is an endoscopic thermocoagulation technique primarily for haemostasis in upper GI bleeding; ICHI has no generic endoscopic haemostasis or thermocoagulation code, and KBF.LA.AD represents only one anatomical site where heater probe is used. |
| 1370982006 (Hematopoietic stem cell mobilization using granulocyte colony-stimulating factor) | is related to | DTA.DB.AE (Injection of anticoagulant) | ICHI has no specific code for G-CSF administration or stem-cell mobilisation; DTA.DB.AE is the closest structural match (percutaneous injection of a pharmacological agent targeting haematological function), but is scoped to anticoagulants rather than haematopoietic growth factors. |
| 78086002 (Holding patient) | is related to | PZA.LD.ZZ (Positioning of the whole body) | ICHI has no code specifically representing the act of physically holding/restraining a patient; PZA.LD.ZZ (positioning of the whole body) is the nearest concept, as holding is often performed to maintain a position, but the two concepts are not equivalent. |
| 90817005 (Home care by visiting nurse) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI does not classify care delivery settings (home vs clinic) or professional roles (nurse vs physician); PZB.ZZ.ZZ is the most plausible catch-all but only relationally linked because it omits both the home setting and the nursing-specific nature of the intervention. |
| 60689008 (Home care of patient) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI does not encode care setting or the general concept of home-based care; PZB.ZZ.ZZ is the broadest available catch-all for a health encounter, but is only relationally matched because the home setting and ongoing care-provision nature are not captured. |
| 185467006 (Home visit for acute condition) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI does not represent visit location (home) or acuity (acute condition) as dimensions of a health intervention code; PZB.ZZ.ZZ is the closest available concept as an unspecified health management encounter. |
| 440146002 (Home visit for care and maintenance of colostomy) | is related to | KBP.LI.AA (Colostomy) | KBP.LI.AA represents the surgical creation of a colostomy, not the ongoing care/maintenance of an existing one or the home visit context; no ICHI code for colostomy maintenance exists, and the creation code is the closest structurally related entry on the colon target axis. |
| 698704008 (Home visit for rheumatology service) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI has no concept of care setting (home vs clinic) or specialty-specific visit types; the closest available code captures an unclassified clinical encounter but omits both the home-visit modality and the rheumatology specialisation. |
| 185466002 (Home visit for urgent condition) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI does not encode urgency level or care setting; this residual encounter code is the nearest available representation of an unclassified clinical encounter, but the urgent-condition and home-visit dimensions are not captured. |
| 391195008 (Homeless mental health care - 3-5 contacts/week) | is related to | AS1.RB.ZZ (Practical support with mental functions, unspecified) | ICHI has no codes for care-programme intensity (contact frequency) or for homeless-specific populations; the practical support code is the closest semantic approximation, omitting the homelessness context, multi-contact frequency, and broader care-programme framing. |
| 391194007 (Homeless mental health care - Daily intensive) | is related to | AS1.RB.ZZ (Practical support with mental functions, unspecified) | As with the 3-5 contacts/week variant, ICHI cannot represent daily-intensive intensity or homeless-population targeting; the same practical mental-function support code is the best available approximation. |
| 274388001 (Diagnostic aspiration of cyst) | is related to | MRS.JB.AE (Percutaneous drainage of soft tissue of unspecified site) | ICHI organises aspiration/drainage codes by anatomical target, not by lesion type, so there is no generic "cyst aspiration" code; MRS.JB.AE captures a percutaneous drainage of unspecified soft tissue and is structurally related, but it does not specify cysts or encode the diagnostic intent, making it only a loose relational match. |
| 274389009 (Diagnostic aspiration of ovary) | is related to | NMA.JB.AE (Percutaneous drainage of ovary) | ICHI has no dedicated aspiration code for the ovary; percutaneous drainage is the closest procedural analog since aspiration is a form of drainage, but the action axis differs (drainage vs. aspiration) and the diagnostic intent is absent in ICHI. |
| 287571005 (Diagnostic bronchial aspiration) | is related to | JBB.AH.XC (Specimen collection of sputum) | Diagnostic bronchial aspiration is a procedure that suctions secretions from the bronchial tree for diagnostic purposes, and the closest ICHI code is specimen collection of sputum (JBB.AH.XC), which captures the diagnostic specimen-collection intent. However, ICHI does not have a dedicated code for bronchial aspiration itself — the sputum code is anatomically adjacent but does not precisely encode the aspiration technique or bronchial site. |
| 168813001 (Diagnostic pneumothorax) | is related to | JBF.LL.AE (Artificial pneumothorax for collapse of lung) | ICHI's only pneumothorax code (JBF.LL.AE) describes artificial pneumothorax specifically for therapeutic lung collapse (e.g., TB treatment), whereas the SNOMED concept refers to intentional pneumothorax created for diagnostic imaging purposes. The procedures share the same physical act but have different clinical intent, making this a related rather than equivalent match. |
| 300022005 (Diathermy of perineal wart) | is related to | PAW.JI.AA (Local excision of lesion of perineum) | The perineum block (PAW) has no destruction code — only local excision of lesion (PAW.JI.AA) and debridement (PAW.JG.AA); diathermy of a wart is a destructive ablation rather than surgical excision, so PAW.JI.AA is the closest available perineal lesion procedure code but represents a different operative modality, making this a related rather than equivalent match. |
| 50687007 (Digestive tract consultation and report) | is related to | KTE.AA.ZZ (Assessment of digestive functions) | ICHI has no concept for clinical consultation or written report as an encounter type, and no digestive-system-specific assessment code beyond KTE.AA.ZZ. This functional assessment code is the closest related code, but it does not capture the consultation-and-report encounter structure of the SNOMED concept, making the match relatedto rather than a direct equivalence. |
| 310603006 (Digital evacuation of retained products of conception) | is related to | NMM.JE.AC (Manual removal of retained placenta) | NMM.JE.AC represents manual (finger/hand) removal of retained placental tissue post-delivery, which shares the same manual approach and the same broad clinical context, but the SNOMED concept targets retained products of conception more broadly (not exclusively placenta), and specifically refers to digital/finger evacuation rather than the general manual technique captured by ICHI. No ICHI code exists for digital evacuation of retained products of conception specifically. |
| 78680009 (Hospital admission, emergency, direct) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no dedicated code for hospital admission or emergency admission; UEP.TI.ZZ is the closest concept capturing the act of directing a patient to a health facility, but it does not encode the emergency or inpatient nature of the admission, making it a related rather than equivalent match. |
| 184274007 (Hospital death discharge notification) | is related to | PZA.TH.ZZ (Post mortem care) | ICHI has no code for an administrative notification act. The closest clinical concept is PZA.TH.ZZ (Post mortem care), which concerns the care given to a body after death, but "notification" is an administrative communication act semantically distinct from post mortem clinical care. |
| 229574004 (Hot mud treatment) | is related to | PZA.ZZ.BS (Hydrotherapy with full immersion, for therapeutic purposes) | ICHI has no specific code for peloid/mud therapy (fangotherapy); PZA.ZZ.BS is the nearest code within the hydrotherapy/physical agent section but strictly describes water immersion, whereas hot mud treatment involves a different physical medium (mineral mud/peat applied to the body surface). |
| 410341008 (Housing case management) | is related to | UEE.RB.ZZ (Practical support with housing services, systems and policies) | ICHI does not have a dedicated "case management" action code; practical support with housing services is the closest concept in the housing services block. Case management encompasses coordination and navigation of housing resources, which overlaps with but is not equivalent to "practical support" as defined in ICHI. |
| 232532000 (Hyoid bone expansion) | is related to | MAH.LC.AA (Hyoid suspension) | ICHI contains no code for hyoid bone expansion specifically; the only hyoid-bone intervention codes available are partial excision and hyoid suspension. Hyoid bone expansion (a surgical technique to enlarge the upper airway) is most closely related to hyoid suspension in both anatomical target and clinical purpose, but the two procedures are not equivalent. |
| 308427006 (Hypertension screening recall) | is related to | ITA.AB.AH (Measurement of blood pressure) | "Hypertension screening recall" is an administrative/scheduling act to bring a patient back for blood pressure screening; the closest functional ICHI code is measurement of blood pressure, which captures the clinical action performed during the encounter, but ICHI has no concept for the recall/administrative trigger itself. |
| 401048005 (Hypertension six month review) | is related to | ITA.AA.ZZ (Assessment of blood pressure functions) | A six-month hypertension review is a broader clinical assessment visit encompassing multiple elements (medication review, risk factors, blood pressure check); ITA.AA.ZZ is the closest ICHI category but covers only the functional assessment component, not the full periodic review encounter. |
| 78080008 (Hyperthermia treatment of cancer) | is related to | PZA.DB.BQ (Hyperthermic administration of pharmacotherapy) | ICHI does not have a dedicated code for oncological hyperthermia as a standalone thermal therapy; PZA.DB.BQ specifically describes hyperthermic drug delivery (e.g. HIPEC), while "Hyperthermy" is only an action-axis means code. PZA.DB.BQ is the closest assignable category but conflates thermal therapy with chemotherapy delivery. |
| 764907006 (Hypogastric plexus block using fluoroscopic guidance) | is related to | ADE.DC.AE (Injection of anaesthetic into sacral sympathetic nerve) | The hypogastric plexus is the pelvic autonomic plexus anatomically adjacent to the sacral sympathetic chain; ICHI has no specific code for hypogastric plexus block, and ADE.DC.AE is the closest available category, though it does not capture the fluoroscopic guidance means or the exact plexus target. |
| 31695008 (Hypotension, induction and maintenance) | is related to | ITA.AA.ZZ (Assessment of blood pressure functions) | ICHI has no code for deliberately inducing or maintaining hypotension (controlled/deliberate hypotension is a surgical anaesthetic technique). The closest available ICHI code sits in the blood pressure functions block but represents assessment rather than the active therapeutic manipulation of blood pressure. |
| 408497003 (Hypotensive therapy) | is related to | ITA.AA.ZZ (Assessment of blood pressure functions) | ICHI does not contain a code for antihypertensive or hypotensive therapy as a clinical management intervention; the entire blood pressure functions block covers only assessment, measurement, monitoring, interview, and training — none of which equate to administering therapy to lower blood pressure. |
| 386330008 (Hypovolemia management) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | ICHI has no code for hypovolemia management (fluid resuscitation, volume replacement); the water, mineral and electrolyte balance functions block is the closest thematic area but contains only assessment and education codes, not active volume restoration. |
| 288042004 (Hysterectomy and fetus removal) | is related to | NME.JE.AA (Termination of pregnancy by hysterotomy) | This SNOMED concept describes a combined procedure — uterine removal together with extraction of a fetus — which is distinct from hysterotomy alone and from standard hysterectomy codes. NME.JE.AA is the closest ICHI concept but does not capture the simultaneous removal of the uterus itself. |
| 1359709000 (Hysteroscopic evacuation of retained product of conception) | is related to | NME.JD.AD (Hysteroscopic removal of internal device or foreign body from uterus) | ICHI has no dedicated code for hysteroscopic evacuation of retained products of conception; NME.JD.AD is the closest hysteroscopic removal/extraction code from the uterus, but its title frames this as removal of a device or foreign body rather than retained gestational tissue, making it a related but semantically imprecise match. |
| 440231004 (Hysteroscopy and cannulation of bilateral fallopian tubes) | is related to | NMC.LG.AA (Dilatation of fallopian tube) | ICHI contains no specific code for hysteroscopic cannulation of the fallopian tubes; NMC.LG.AA is the closest procedural analogue, as tubal cannulation achieves recanalization similarly to dilatation, but it does not encode the hysteroscopic approach, bilateral scope, or the hysteroscopy component. |
| 370814005 (Identification of presence of implantable cardiac devices) | is related to | HFC.SN.AH (Pacemaker or cardioverter defibrillator function check) | ICHI's pacemaker/defibrillator function check is the closest code, but it implies a functional assessment of a known device rather than the act of identifying whether an implantable cardiac device is present; the two concepts differ in clinical intent and scope. |
| 1251633000 (Imaging guided percutaneous aspiration of breast) | is related to | LCA.AD.AE (Percutaneous biopsy of breast) | ICHI has no dedicated percutaneous aspiration code for the breast — the closest available code is LCA.AD.AE, which shares the percutaneous approach and breast target but the action axis (biopsy/sampling) does not precisely distinguish aspiration from solid-tissue biopsy; neither code captures the imaging-guidance component. |
| 708681005 (Imaging guided percutaneous drainage of retroperitoneum) | is related to | KMA.JB.AE (Percutaneous drainage of peritoneal cavity) | ICHI contains no code for retroperitoneal drainage; the retroperitoneal space is anatomically distinct from the peritoneal cavity (it lies behind the peritoneum), so KMA.JB.AE is only a related concept rather than a true equivalent or approximate match. |
| 772022001 (Imaging guided radiation synovectomy) | is related to | MRJ.DB.AE (Injection into joint of unspecified site) | ICHI has no code for radiosynoviorthesis (radiation synovectomy / intra-articular radionuclide injection); the closest concept is percutaneous injection into a joint (MRJ.DB.AE), which shares the target (joint) and approach (percutaneous), but entirely omits the defining feature of the procedure — delivery of a radioactive agent to ablate synovium — making this a related rather than equivalent or inexact match. |
| 1196993005 (Imaging guided repositioning of peritoneal dialysis catheter) | is related to | KMA.KA.AA (Replacement of internal device of peritoneal cavity) | ICHI has no specific code for repositioning of a peritoneal dialysis catheter; KMA.KA.AA (replacement of internal device of peritoneal cavity) is the closest available code but describes replacement rather than repositioning, and does not capture the imaging guidance or the dialysis-specific catheter context. |
| 426344007 (Imaging guided transluminal occlusion of colorectal fistula) | is related to | KBP.MK.AA (Repair of colon) | ICHI lacks a specific code for transluminal occlusion of a colorectal fistula; KBP.MK.AA (repair of colon) is the closest conceptual match but does not capture the transluminal approach, imaging guidance, or the fistula-specific closure nature of the procedure, and does not address the rectal component. |
| 1284973003 (Immune tolerance induction) | is related to | DTB.DB.AF (Intravenous administration of immunological agent) | ICHI does not have a dedicated code for immune tolerance induction (a procedure where patients are exposed to escalating doses of an antigen to suppress immune reactivity); the closest available codes are in the DTB block (Interventions on immunological system function), specifically the administration of immunological agents, but these are defined by route rather than therapeutic goal, making the match relational rather than equivalent. |
| 308432007 (Immunization recall) | is related to | VDA.VF.ZZ (Alert concerning immunisation behaviours) | Immunization recall is a public health activity in which patients overdue for a vaccine are contacted (recalled), which aligns most closely with "alert concerning immunisation behaviours" in ICHI's health-service behaviour section; the match is relational rather than equivalent because ICHI frames this as a population-level alert action, while SNOMED frames it as the recall process itself. |
| 268558004 (Immunization status screening) | is related to | VDA.AA.ZZ (Assessment of immunisation behaviours) | Checking a patient's immunization status is an assessment activity targeting immunisation behaviours, making VDA.AA.ZZ the closest available ICHI code; the match is relational rather than wider/narrower because "assessment of immunisation behaviours" is framed as a behavioural intervention concept in ICHI, whereas the SNOMED concept describes a clinical screening act to determine vaccination history. |
| 1259015007 (Implantation of permanent spinal cord stimulator) | is related to | AXA.SC.BP (Electrical stimulation for pain) | ICHI does not have a dedicated code for spinal cord stimulator implantation as a device insertion procedure; AXA.SC.BP captures the functional purpose of spinal cord stimulation but focuses on the stimulation act rather than the surgical implantation of the device, making this a related rather than equivalent mapping. |
| 370824002 (Implementation of protective measures to prevent injury due to electrical sources) | is related to | VCB.TM.ZZ (Environment modification to influence workplace safety behaviours) | ICHI has no code specific to electrical hazard protection; electrical injury prevention is functionally a workplace safety behaviour intervention, and VCB.TM.ZZ is the closest available concept. The ICHI code is considerably broader, covering all workplace safety environment modifications rather than electrical sources specifically. |
| 370825001 (Implementation of protective measures to prevent injury due to laser sources) | is related to | UBH.TM.ZZ (Environment modification to influence light) | ICHI has no laser-specific code; laser is a form of coherent light, so UBH.TM.ZZ is the closest physical-agent match covering the same environmental domain. The ICHI code is substantially broader, encompassing all light-related environmental modification rather than laser injury prevention specifically. |
| 370829007 (Implementation of protective measures to prevent skin or tissue injury due to mechanical sources) | is related to | VCB.TM.ZZ (Environment modification to influence workplace safety behaviours) | ICHI has no code representing mechanical forces (pressure, friction, shear) as a hazard class; mechanical injury prevention overlaps most with workplace safety environment modification. The match is approximate — the ICHI code targets workplace safety behaviour broadly rather than mechanical hazard protection for skin and tissue. |
| 370828004 (Implementation of protective measures to prevent skin or tissue injury due to thermal sources) | is related to | LTC.LD.ZZ (Positioning to protect skin functions) | ICHI's LTC block (Interventions on protective functions of the skin) contains only two codes — assessment and positioning — neither of which captures the full scope of implementing protective measures specifically against thermal sources. The SNOMED concept encompasses a wider set of nursing/protective interventions that are not individually coded in ICHI. |
| 52637005 (In vitro fertilization) | is related to | NMA.JH.AC (Transvaginal oocyte retrieval) | ICHI does not contain a dedicated IVF code; IVF as a complete procedure involves oocyte retrieval, laboratory fertilization, and embryo transfer — each potentially mapping to separate ICHI codes. No single ICHI code captures the full IVF procedure, making this a relatedto mapping representing only one component step. |
| 185496007 (In-house chiropody) | is related to | LBF.JG.AA (Debridement of nail, nail bed, or nail fold of toe) | Chiropody (podiatry) is a multi-component foot care discipline encompassing nail debridement, callus reduction, corn treatment, and skin care of the foot — ICHI has no single "chiropody" code. LBF.JG.AA represents the most commonly performed chiropody procedure but covers only one aspect of a broader clinical encounter; "in-house" is a service-delivery modifier with no ICHI equivalent. |
| 185497003 (In-house chiropody - domiciliary visit) | is related to | LBF.JG.AA (Debridement of nail, nail bed, or nail fold of toe) | The clinical content is the same as in-house chiropody (185496007) — the "domiciliary visit" qualifier denotes setting/mode of delivery, which has no expression in ICHI procedure codes. ICHI has telehealth extension codes but no distinction for home visits, so this maps identically to 185496007 at the procedure level. |
| 185490001 (In-house counseling) | is related to | SM1.PP.ZZ (Counselling about self care, unspecified) | ICHI organises counselling codes by target domain (body function, activity, etc.) and has no single generic "counselling" category code at the encounter level; SM1.PP.ZZ is the closest unspecified counselling code in the activities/self-care domain, but "in-house counseling" in primary care could span many ICHI target domains. |
| 385951007 (Incision care) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | ICHI has no concept corresponding to "incision care" as a post-procedural wound management activity; the closest available code covers application of dressing to skin/subcutaneous tissue, which captures a common component of incision care but does not cover the full scope of monitoring, irrigation, and wound assessment that the SNOMED concept implies. |
| 82678002 (Incision of cerebral epidural space) | is related to | AAG.JB.AA (Drainage of intracranial space) | ICHI has no dedicated incision code for the intracranial epidural space, and no code at the granularity of epidural space specifically; AAG.JB.AA covers drainage of the intracranial space generally and is the closest structural match, but differs in both the action (drainage vs. incision) and the target granularity (intracranial space broadly vs. epidural space specifically). |
| 424183000 (Infection precautions education, guidance, counseling) | is related to | VED.PM.ZZ (Education to influence hygiene behaviours) | There is no ICHI code specifically for infection precautions education; the closest thematic match is education targeting hygiene behaviours, since hygiene is the primary behavioural domain for infection precautions. The match is approximate — the SNOMED concept is specific to infection precautions and combines education, guidance, and counselling. |
| 182771004 (Informed consent for procedure) | is related to | PZB.TB.ZZ (Individualised planning) | ICHI has no dedicated code for consent; the closest available concept is "Individualised planning" (PZB.TB.ZZ), which covers personalised preparation and decision-making for a person's care encounter, but this is broader than consent and does not capture the legal-ethical dimension of procedure-specific informed consent. |
| 223461003 (Informing about what is happening) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI lacks a specific code for clinician-to-patient communication about current clinical status; the most reasonable container is the residual "Health management encounter, unspecified" (PZB.ZZ.ZZ) under the whole-person block, but this is far broader and represents an unmatched category rather than a communicative act. |
| 304564008 (Informing next of kin) | is related to | UCB.RG.ZZ (Providing services in relation to support from immediate family) | ICHI does not model clinician-to-family communication as a discrete intervention; "Providing services in relation to support from immediate family" (UCB.RG.ZZ) is the closest structural match in the environment chapter's immediate-family block, but it targets family support broadly rather than the specific act of notifying or informing next of kin. |
| 1230235003 (Informing of subject's social support network) | is related to | UCB.TD.ZZ (Collaboration relating to support from immediate family) | ICHI has no "informing" action and no target axis for a generic social support network; the closest structural domain is the UCB/UCC family-support block, where collaboration (TD) codes represent engagement with support systems, but this is only tangentially related and does not capture the act of one-directional disclosure to a support network. |
| 407574002 (Informing partner) | is related to | PZB.VC.ZZ (Infectious disease contact tracing) | "Informing partner" in a health context most commonly refers to partner notification in sexually transmitted infection management, which is functionally the clinical purpose of infectious disease contact tracing in ICHI; however, ICHI's code encompasses the full tracing process and is restricted to infectious disease, while the SNOMED concept could apply more broadly. |
| 310866003 (Informing patient) | is related to | PZB.AN.ZZ (Interview in relation to the whole person) | ICHI has no dedicated "informing" or "disclosing to patient" code; the closest individual-level clinical communication encounter is an interview with the whole person (PZB.AN.ZZ), but an interview is bidirectional whereas informing the patient is a directed one-way disclosure, making this only a related match. |
| 703091001 (Initiation of depot contraception) | is related to | MRM.DB.AE (Injection into muscle of unspecified site) | Depot contraception (e.g. medroxyprogesterone acetate) is typically administered as an intramuscular or deep subcutaneous injection, which MRM.DB.AE captures at the procedural level, but ICHI does not encode the contraceptive purpose, the specific medicament, or the "initiation" aspect, making this a related but not directly equivalent match. |
| 440163003 (Initiation of first time insulin therapy) | is related to | UAC.RD.ZZ (Providing medications) | UAC.RD.ZZ ("Providing medications") is the closest ICHI concept for dispensing or administering a medicament such as insulin, but it is far broader — covering any medication provision — and does not capture the insulin-specific or diabetes-management context nor the "first time initiation" nuance of the SNOMED concept. |
| 703143004 (Initiation of transdermal contraception) | is related to | LZZ.DB.AH (External application of substance or living organism to skin and subcutaneous tissue, not elsewhere classified) | LZZ.DB.AH covers external application of a substance to skin and subcutaneous tissue (NEC), which corresponds to the route of administration of a transdermal contraceptive patch, but the ICHI code is generic across any externally applied substance and does not encode the contraceptive purpose or the "initiation" aspect. |
| 60196006 (Injection of alcohol into sympathetic nerve) | is related to | ACA.GA.AE (Percutaneous destruction of peripheral nerve) | ICHI has no code for injection of a neurolytic/destructive agent (alcohol) into the sympathetic nervous system specifically; the sympathetic nerve injection codes in ICHI (ADB–ADE series) cover anaesthetic only. ACA.GA.AE captures the destructive intent of alcohol neurolysis but applies to the peripheral nervous system target axis rather than the sympathetic nervous system. |
| 75841000 (Injection of neurolytic agent into sympathetic nerve) | is related to | ADB.DC.AE (Injection of anaesthetic into cervical sympathetic nerve) | ICHI has sympathetic nerve injection codes (ADB/ADC/ADD/ADE.DC.AE) but all specify anaesthetic as the substance and are segmented by spinal level, while the SNOMED concept specifies a neurolytic agent into an unspecified sympathetic nerve. No single ICHI code captures the neurolytic substance into a non-level-specific sympathetic nerve target. |
| 736047008 (Injection of neurolytic substance into superior hypogastric plexus) | is related to | ADE.DC.AE (Injection of anaesthetic into sacral sympathetic nerve) | The superior hypogastric plexus is a presacral sympathetic plexus; the closest ICHI code targets the sacral sympathetic nervous system with injection, but specifies anaesthetic rather than neurolytic substance and does not distinguish the hypogastric plexus specifically. No ICHI code exists for neurolytic injection into this plexus. |
| 112948001 (Injection of optic nerve) | is related to | AAN.DC.AE (Injection of anaesthetic into cranial nerve) | The optic nerve is cranial nerve II, so the cranial nerve target block is anatomically correct. However, ICHI only has AAN.DC.AE (anaesthetic injection) rather than a general "injection into cranial nerve" code — the SNOMED concept does not specify the substance, while the ICHI code specifies anaesthetic, making this a related but not equivalent match. |
| 80017006 (Injection of phenol into sympathetic nerve) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | ICHI has level-specific sympathetic nerve injection codes (ADB–ADE series) but all use the anaesthetic-injection action (DC), whereas phenol is a neurolytic/destructive agent — no ICHI code combines a destructive injection with an unspecified-level sympathetic nerve target. ADA.ZZ.ZZ is the only unspecified-level sympathetic system code but covers all intervention types, making it a related rather than equivalent match. |
| 1260141007 (Insertion of autologous fascial midurethral sling) | is related to | NAK.LC.AA (Suspension procedures on bladder neck) | ICHI has no dedicated sling procedure code; midurethral slings are anti-incontinence procedures functionally classified under bladder neck suspension in ICHI. NAK.LC.AA is the closest structural/functional equivalent, but the SNOMED concept is more specific (autologous fascia, midurethral position) and targets the urethra rather than the bladder neck, so this is a related rather than equivalent mapping. |
| 1260138003 (Insertion of autologous fascial pubovaginal sling) | is related to | NAK.LC.AC (Transvaginal suspension procedures on bladder neck) | A pubovaginal sling is placed via a transvaginal approach to support the bladder neck, making NAK.LC.AC the closest ICHI match; however, the SNOMED concept specifies autologous fascia as the graft material and a distinct sling configuration, details not captured in the broader ICHI suspension category. |
| 53916009 (Insertion of cordis cannula into abdomen) | is related to | PAK.JB.AA (Abdominal drainage) | A Cordis cannula inserted into the abdomen is a drainage or access device placement, and PAK.JB.AA is the closest available ICHI code covering drain/cannula insertion into the abdominal region. However, the ICHI code describes the drainage procedure rather than the device insertion step specifically, and no dedicated "abdominal cannula insertion" category exists in ICHI. |
| 232617002 (Insertion of tracheo-esophageal catheter) | is related to | JBA.DL.AC (Insertion of endotracheal tube) | A tracheo-esophageal catheter is placed through a surgically created tracheoesophageal puncture (typically for voice restoration post-laryngectomy), distinct from endotracheal intubation; JBA.DL.AC is the closest available code in the trachea block but refers to a different type of tracheal tube, making the match only related. |
| 107883003 (Integumentary system manipulation) | is related to | LZZ.ZY.ZY (Other specified interventions on the integumentary system) | ICHI does not have a manipulation action code applied to integumentary targets; manipulation in ICHI is restricted to musculoskeletal structures. LZZ.ZY.ZY is the closest residual code but only relatedto since the manipulation semantic is not preserved. |
| 119829000 (Integumentary system transposition) | is related to | LZZ.ML.AA (Skin graft, not elsewhere classified) | ICHI has no code explicitly using "transposition" for integumentary structures; the closest procedural family is skin grafting, which is related to but not equivalent to transposition (which involves rotating/transferring a pedicled flap rather than a free graft). |
| 182998008 (Intensive nursing care) | is related to | UCK.RG.ZZ (Providing services in relation to support from health professionals) | ICHI lacks any concept of nursing care intensity or ICU-level nursing as a specific intervention category; the closest available code captures provision of health professional support services generically, only loosely related to intensive nursing care. |
| 288159007 (Intermittent traction) | is related to | MBZ.LC.AE (Direct or skeletal traction to the spine) | ICHI contains only spine-specific traction codes and no generic "intermittent traction" code applicable across body regions; the SNOMED concept is body-site-independent, making this a related-but-not-equivalent match limited to spinal application. |
| 169359004 (Internal radiotherapy - permanent seeds) | is related to | NGA.GA.BA (Destruction of lesion or tissue of the prostate by radiotherapy) | ICHI has no generic body-site-agnostic code for permanent seed brachytherapy; all radiotherapy destruction codes are target-organ-specific, and the most clinically common use of permanent seeds is prostate brachytherapy, so the closest ICHI code is only relatedly equivalent. |
| 182753006 (Intestinal dialysis) | is related to | KMA.JC.AE (Peritoneal dialysis) | Intestinal dialysis is a non-standard technique using the intestinal mucosa as a dialytic membrane (analogous to peritoneal dialysis but via the gut lumen), and ICHI's closest equivalent is peritoneal dialysis (KMA.JC.AE) which uses the peritoneal membrane in the same abdominal cavity context. |
| 69158002 (Intra-atrial pacing) | is related to | HFC.DL.AF (Percutaneous transluminal endocardial insertion of temporary pacemaker system) | ICHI has no dedicated "intra-atrial pacing" code; HFC.DL.AF is the closest procedural cousin (temporary endocardial pacing) but specifies device insertion rather than the pacing stimulus, and does not distinguish atrial from ventricular lead placement. |
| 438376002 (Intracardiac procedure using imaging guidance) | is related to | HZZ.BA.AF (Intracardiac echocardiography) | ICHI does not have a generic "intracardiac procedure with imaging guidance" category; HZZ.BA.AF is the only intracardiac code combining imaging action with intracardiac approach, but it specifically denotes the echocardiography procedure itself rather than imaging-guided guidance for another intervention. |
| 438602007 (Intracranial procedure using imaging guidance) | is related to | AAA.AD.AE (Percutaneous biopsy of brain) | ICHI does not have a generic "imaging-guided intracranial procedure" category; image guidance is typically represented via the means axis (e.g. percutaneous AE), but no single code captures the full breadth of this SNOMED concept across all target tissues and action types. |
| 231302009 (Intramuscular infiltration of neurolytic substance) | is related to | ACA.DB.AE (Injection into a peripheral nerve) | ICHI has no code for injection of a neurolytic agent directly into muscle tissue; the nearest anatomically and procedurally related code captures injection into a peripheral nerve percutaneously, but the target (peripheral nerve vs. muscle) and the specific neurolytic nature of the agent are both different. |
| 9106006 (Intraoperative cardiac pacing and mapping) | is related to | HFC.AF.AF (Electrophysiological study of heart) | ICHI's electrophysiological study of the heart covers cardiac mapping as part of EP assessment, but it does not specifically capture the pacing component or the intraoperative context; the closest pacing-specific codes address device insertion rather than the combined pacing-and-mapping procedure. |
| 786456009 (Intraoperative fixation of head using head fixation device) | is related to | MAA.DL.AA (Insertion of skull tongs or halo traction device) | MAA.DL.AA describes insertion of skull tongs or a halo traction device into the skull, which is the closest ICHI code for intraoperative rigid head fixation (e.g., Mayfield clamp); however, ICHI frames this as a traction/fixation device insertion rather than a positional stabilisation procedure. |
| 430824005 (Intraosseous cannulation) | is related to | DGA.DB.AE (Injection into bone marrow) | ICHI has no dedicated "intraosseous cannulation" code; the closest structural match is percutaneous injection into bone marrow, which shares the intraosseous access concept but describes an injection act rather than the act of establishing vascular access via cannulation. |
| 176849008 (Introduction of abortifacient into uterine cavity) | is related to | NME.DB.AC (Termination of pregnancy by oral medication) | No ICHI code specifically represents introduction of an abortifacient agent into the uterine cavity; the closest concept in the uterus block is NME.DB.AC (termination of pregnancy by oral medication), which shares the intent (pharmacological termination of pregnancy) but specifies oral rather than intrauterine delivery. The approaches differ significantly — ICHI describes the oral route while SNOMED describes direct intracavitary instillation — making this a related but not equivalent match. |
| 56221009 (Introduction of catheter, retrograde, brachial artery) | is related to | ICA.FA.AA (Incision of artery of upper limb) | ICHI lacks a dedicated code for catheter insertion into the brachial artery (or any specific upper limb artery); the brachial artery falls within the upper limb artery block (BlockL5-ICA), but no DL (insertion of device) code exists for that block. ICA.FA.AA (incision of artery of upper limb) is the closest procedural step involved in open retrograde brachial arteriotomy for catheter introduction, but it captures only the incision component rather than the full catheterisation procedure, making this a related-only match. |
| 76677003 (Introduction of needle, retrograde, brachial artery) | is related to | ICA.FA.AA (Incision of artery of upper limb) | ICHI has no dedicated code for needle puncture or cannulation of the brachial artery; ICA.FA.AA (incision of artery of upper limb) is the closest structural intervention on the same anatomical target, but "incision" is broader and more invasive than retrograde needle introduction. The specific retrograde approach and the needle-only nature of the SNOMED concept are not captured. |
| 68966003 (Intubation AND aspiration) | is related to | JZZ.DL.AC (Other intubation of respiratory tract, not elsewhere classified) | The SNOMED concept describes a combined procedure (intubation plus aspiration of the airway/respiratory tract), and while JZZ.DL.AC covers the intubation component within the respiratory system, there is no single ICHI code that captures both intubation and aspiration together; the closest suctioning code covers the aspiration component separately, making this a related-but-not-equivalent match. |
| 417917001 (Intubation of lacrimal drainage structure) | is related to | BAD.JA.AA (Irrigation of lacrimal apparatus) | ICHI has no dedicated intubation or stent-insertion code for the lacrimal drainage system within the BlockL5-BAD (Interventions on lacrimal apparatus) block; irrigation (BAD.JA.AA) is the closest procedural intervention on the lacrimal apparatus, but intubation/stenting of the nasolacrimal duct is a mechanically different act, making this only a related match. |
| 394918006 (Iodine seed radiotherapy) | is related to | NGA.GA.BA (Destruction of lesion or tissue of the prostate by radiotherapy) | Iodine seed (I-125 brachytherapy) is most commonly applied to the prostate, and ICHI has no dedicated brachytherapy seed implantation code; NGA.GA.BA covers prostate radiotherapy destruction but is site-specific and does not capture the seed/brachytherapy technique, nor does it cover iodine seed use at other anatomical sites, making this only a related match. |
| 234932007 (Irrigation of oral wound) | is related to | KAG.JA.AC (Irrigation of gingiva) | ICHI has no generic "irrigation of oral wound" or "irrigation of oral cavity" code; the only oral irrigation code is specifically for the gingiva (gums), which is a subsite of the oral cavity and may or may not match the wound location intended by the SNOMED concept. |
| 450770001 (Issuing of certificate of fitness) | is related to | PZB.AA.ZZ (General health assessment) | ICHI does not have a code for issuing administrative health certificates; the closest available concept is "General health assessment" (PZB.AA.ZZ), which captures the clinical evaluation that underlies a fitness certificate. The issuing of the document itself is an administrative act not represented as a distinct ICHI intervention, making this only a related match. |
| 450771002 (Issuing of certificate of incapacity) | is related to | PZB.AA.ZZ (General health assessment) | As with the fitness certificate, ICHI has no code for issuing incapacity documentation; the underlying clinical act is a general health or functional assessment best approximated by PZB.AA.ZZ. The administrative act of certifying incapacity for work/activity falls outside ICHI's intervention scope, making this only a related match. |
| 113127005 (Kidney transplant evaluation) | is related to | NAA.KD.AA (Kidney transplantation) | No ICHI code exists for pre-transplant evaluation or candidate assessment of the kidney. NAA.KD.AA represents the transplantation procedure itself rather than the evaluation leading to it, making this a related-but-not-equivalent mapping; the SNOMED concept is a workup/assessment activity, not the operative procedure. |
| 816968003 (Labor and birth support) | is related to | NUG.PP.ZZ (Counselling for functions related to childbirth) | ICHI does not have a dedicated code for intrapartum supportive care; NUG.PP.ZZ represents psychosocial counselling in the childbirth function domain, which partially overlaps, but SNOMED's concept spans the full range of physical, emotional, and informational support provided during labour — a broader and distinct intervention type. |
| 55693001 (Lacrimal apparatus intubation for dilation) | is related to | BAD.FA.AA (Incision of lacrimal apparatus) | ICHI has no code for lacrimal intubation or tube/stent insertion into the lacrimal apparatus; the closest available intervention in the lacrimal apparatus block is incision (BAD.FA.AA), which relates to the surgical access component, but intubation for dilation is a distinct procedure not captured by any single ICHI code. |
| 51657007 (Ladd operation, mobilization of intestine) | is related to | KBK.LC.AA (Fixation of small intestine, not elsewhere classified) | The Ladd procedure for intestinal malrotation involves dividing Ladd's bands, mobilising the bowel, and repositioning/fixing the intestine. ICHI has no dedicated Ladd procedure code; KBK.LC.AA captures the repositioning/fixation component but misses the band division and broader operative intent, making this a related but inexact match. |
| 712983009 (Laparoscopic esophagectomy and gastric mobilization) | is related to | KBA.JK.AB (Thoracoscopic total oesophagectomy) | ICHI has no laparoscopic esophagectomy code — the thoracoscopic variant is the closest minimally invasive esophagectomy available, but the approach axis differs and the gastric mobilization component of the SNOMED concept is not represented in any ICHI code. |
| 708988001 (Laparoscopic repositioning of Tenckhoff catheter) | is related to | KMA.KA.AA (Replacement of internal device of peritoneal cavity) | ICHI has no code for repositioning of a peritoneal catheter; KMA.KA.AA is the closest functional analog for manipulation of a peritoneal cavity device, but it denotes replacement rather than repositioning, and no laparoscopic variant exists in this action class. |
| 309451008 (Laparoscopic uterosacral nerve ablation) | is related to | NME.GA.AB (Laparoscopic destruction of lesion or tissue of uterus) | ICHI has no dedicated code for laparoscopic uterosacral nerve ablation, and the sympathetic nervous system blocks cover only the systemic sympathetic chain without laparoscopic approaches. NME.GA.AB is the closest available code but targets uterine tissue rather than the uterosacral ligament nerve fibres specifically. |
| 424979004 (Laryngeal mask airway insertion) | is related to | KAR.DL.AC (Insertion of oropharyngeal airway) | ICHI has no specific code for laryngeal mask airway (LMA) insertion. KAR.DL.AC is the most anatomically adjacent code — both are supraglottic airway devices inserted through the oral route — but an LMA seats at the laryngeal inlet rather than purely in the oropharynx, and the two devices are clinically distinct. |
| 287437003 (Larynx/trachea dilation) | is related to | JAN.LG.AD (Endoscopic dilatation of larynx) | The SNOMED concept covers dilation of either the larynx or trachea (or both) without specifying approach, whereas the best ICHI code covers only endoscopic laryngeal dilation; the tracheal equivalent is a separate code (JBA.LG.AD), and neither individually represents the combined larynx/trachea scope. |
| 414582004 (Laser assisted subepithelial keratomileusis) | is related to | BBB.GA.AH (Destruction of corneal lesion) | LASEK is a refractive corneal reshaping procedure using laser ablation of corneal epithelium/stroma, a form of tissue destruction on the cornea, but BBB.GA.AH is oriented toward lesion destruction rather than refractive sculpting. No specific refractive surgery code exists in ICHI, making this a related but imprecise match. |
| 240920002 (Laser cardiac valvotomy) | is related to | HDF.LG.AA (Closed mitral valvotomy) | ICHI contains only closed (mechanical) valvotomy codes specific to individual valves with no generic "cardiac valvotomy" or laser-specific valvotomy code; since the SNOMED concept does not specify which valve, no single ICHI code captures both the laser means and the valve-unspecified target, making this only relatedly matched via the closest structural procedure. |
| 87199005 (Lead screening) | is related to | DIA.AH.XA (Specimen collection of blood) | Lead screening in clinical practice requires blood specimen collection as the primary procedural act (venepuncture or fingerstick), making DIA.AH.XA the closest procedural anchor; however, the SNOMED concept encompasses the full screening activity (collection plus laboratory analysis and interpretation), while ICHI only represents the specimen collection step. |
| 410344000 (Legal system case management) | is related to | UEJ.TD.ZZ (Collaboration relating to legal services, systems and policies) | ICHI's legal services block (UEJ) covers interventions on legal services, with UEJ.TD.ZZ representing cross-sector collaboration — the closest proxy to coordinating a patient's engagement with the legal system. No ICHI code directly encodes "case management" within the legal-system context. |
| 108152001 (Lens incision) | is related to | BBF.FA.AA (Capsulotomy) | BBF.FA.AA (Capsulotomy) is the only incision-type procedure on the lens in ICHI, representing incision of the lens capsule specifically, whereas the SNOMED concept "lens incision" is broader and could encompass any incision of the crystalline lens or its capsule. |
| 711066004 (Liaising with family) | is related to | UCB.TD.ZZ (Collaboration relating to support from immediate family) | "Liaising with family" is a collaborative coordination activity directed at family members, which aligns closely with UCB.TD.ZZ (collaboration relating to support from immediate family); however, ICHI's target is the environmental factor "support from immediate family" rather than the act of liaising itself, and "family" in SNOMED is broader than "immediate family" in ICHI. |
| 1155752006 (Liaising with healthcare provider) | is related to | UCK.TD.ZZ (Collaboration relating to support from health professionals) | "Liaising with healthcare provider" describes interprofessional collaborative communication, which maps most closely to UCK.TD.ZZ (collaboration relating to support from health professionals); ICHI frames the target as the environmental support relationship rather than the provider contact event, making this a related but not equivalent match. |
| 718532008 (Liaising with housing service) | is related to | UEE.TD.ZZ (Collaboration relating to housing services, systems and policies) | "Liaising with housing service" involves collaborative communication with housing services, which corresponds well to UEE.TD.ZZ; the ICHI code is broader in scope (covering systems and policies) while the SNOMED concept is specifically a clinical liaison activity, making the match relatedto rather than equivalent. |
| 18131000202106 (Liaising with legal guardian) | is related to | UCF.TD.ZZ (Collaboration relating to support from people in positions of authority) | A legal guardian is a person in a position of authority over a patient (particularly a child or incapacitated adult), making UCF.TD.ZZ the closest available ICHI code; however, ICHI targets the broad environmental factor of authority figures rather than a specific guardian relationship, so the match is relatedto. |
| 709764001 (Liaising with legal service) | is related to | UEJ.TD.ZZ (Collaboration relating to legal services, systems and policies) | "Liaising with legal service" is a collaborative act directed at legal services, which maps directly to UEJ.TD.ZZ; as with the other liaising concepts, ICHI frames this as a population-level or systemic collaboration rather than a specific clinical liaison event, so the equivalence is relatedto rather than equivalent. |
| 712553007 (Liaising with patient) | is related to | PZB.AN.ZZ (Interview in relation to the whole person) | ICHI has no dedicated "liaison with patient" code; the closest functional equivalent is an interview/encounter with the whole person (PZB.AN.ZZ), which captures the structured communicative contact between clinician and patient. However, "liaising" in SNOMED implies a broader, ongoing coordination activity rather than a single interview, making this a relatedto match rather than equivalent. |
| 709010006 (Liaising with referral source) | is related to | UEP.TI.ZZ (Referral to health provider) | "Liaising with referral source" describes communication back to the originating provider, whereas UEP.TI.ZZ covers referral to a health provider in the forward direction; both sit within the same health services coordination domain. Neither is an exact match. |
| 709754005 (Liaising with religious service) | is related to | SXH.RC.ZZ (Emotional support for engaging in religion and spirituality) | ICHI does not have a code for clinical liaison with a religious service or chaplain; SXH.RC.ZZ is the closest code in the religion and spirituality domain, covering support interventions related to religious and spiritual engagement. The SNOMED concept describes a coordination activity with an external religious service rather than direct emotional support delivery. |
| 278811004 (Limb incision) | is related to | MRS.FA.AA (Incision of soft tissue of unspecified site) | ICHI has no generic "limb incision" code spanning all tissue types; the skin-specific incision codes are limited to skin and subcutaneous tissue of a specific limb, while MRS.FA.AA covers incision of soft tissue without site specification — but it does not capture the full anatomical scope of "limb" as a target or the range of tissue types an incision might traverse. |
| 397554006 (Limbal stem cell transplantation) | is related to | BBB.KD.AA (Corneal transplant) | Limbal stem cell transplantation targets the limbus (the corneal-conjunctival junction) to restore the ocular surface epithelium, which is anatomically adjacent to but distinct from a full corneal transplant. ICHI has no specific code for limbal stem cell transplantation, and BBB.KD.AA is the closest structural intervention on the anterior eye segment, though it does not capture the stem cell or limbal specificity. |
| 386348004 (Limit setting) | is related to | AUD.PH.ZZ (Training of emotional functions) | "Limit setting" is a psychiatric/behavioural nursing intervention used to regulate a patient's disruptive or unsafe behaviour, most commonly in mental health inpatient settings; ICHI has no direct equivalent. Training of emotional functions is the closest conceptual match, but limit setting is a clinician-directed boundary-enforcement action rather than a patient training intervention. |
| 70495004 (Limited consultation) | is related to | PZB.AN.ZZ (Interview in relation to the whole person) | A "limited consultation" in SNOMED denotes a focused, brief clinical encounter (a specific billing/service type concept), for which ICHI has no direct equivalent. PZB.AN.ZZ captures the clinical encounter/interview nature of the interaction, but does not convey the "limited" scope distinction. |
| 177714000 (Liposuction removal of hematoma) | is related to | LZZ.JB.AA (Drainage of skin and subcutaneous cell tissue, not elsewhere classified) | ICHI has no code specifically for liposuction used as a technique to evacuate a hematoma from subcutaneous tissue; the closest concept is open drainage of skin and subcutaneous tissue, which captures the drainage/removal purpose but does not encode the liposuction technique or the hematoma target. |
| 183254008 (Loan of appliance) | is related to | UAD.RD.ZZ (Providing goods for personal use in daily living) | ICHI has no concept of "loaning" (temporary provision) of an appliance; UAD.RD.ZZ represents providing goods/products for personal daily use, which is related in intent but does not capture the temporary/loan nature of the intervention, and "appliance" is narrower than "goods for daily living." |
| 60478006 (Local actinotherapy) | is related to | PZA.SC.AH (Whole body phototherapy) | Actinotherapy (therapeutic use of light/UV radiation on tissue) aligns most closely with phototherapy in ICHI, but "whole body phototherapy" is broader and site-unspecific, while "local" actinotherapy implies a targeted application to a specific body area. No site-specific ICHI phototherapy code captures the general concept of local actinotherapy. |
| 733967009 (Local anesthetic thoracic paravertebral nerve block) | is related to | ADC.DC.AE (Injection of anaesthetic into thoracic sympathetic nerve) | A thoracic paravertebral nerve block targets the spinal nerve roots at the paravertebral space (somatic nerves), whereas ADC.DC.AE specifically concerns the thoracic sympathetic nerve chain; ICHI does not have a dedicated paravertebral block code, making this a related but structurally distinct concept. |
| 1179621007 (Localization of sentinel lymph node using diagnostic dye) | is related to | DFA.BA.ZZ (Lymphogram, not elsewhere classified) | ICHI has no dedicated sentinel lymph node mapping/localization code; DFA.BA.ZZ represents imaging/visualisation of an unspecified lymph node, which is conceptually related to lymphatic mapping with dye, but sentinel node localization is a pre-surgical identification procedure rather than a conventional lymphographic imaging study. |
| 1179619002 (Localization of sentinel lymph node using indocyanine green) | is related to | DFA.BA.ZZ (Lymphogram, not elsewhere classified) | As with dye-based sentinel node localization, ICHI lacks a specific code for fluorescence-guided (indocyanine green) lymphatic mapping; DFA.BA.ZZ is the closest available code capturing lymph node imaging/visualisation, but it does not reflect the fluorescence imaging technique or the sentinel-node-specific purpose. |
| 1179620008 (Localization of sentinel lymph node using magnetic nanoparticle tracer) | is related to | DFA.BA.ZZ (Lymphogram, not elsewhere classified) | Magnetic nanoparticle-guided sentinel lymph node localization is a novel technique not represented anywhere in ICHI; DFA.BA.ZZ is the least-worst match as a general lymph node imaging code, but it fails to capture the magnetic detection method, the nanoparticle tracer, or the sentinel-node identification purpose. |
| 314094003 (Lupus anticoagulant screening test) | is related to | XG5E59 (Partial thromboplastin time) | The lupus anticoagulant screening test relies primarily on phospholipid-dependent clotting assays such as the aPTT, making XG5E59 the closest available ICHI laboratory test code. However, a full lupus anticoagulant screen typically involves multiple assays and a confirmatory mixing study, so the match is related but not equivalent. |
| 108002007 (Lymphatic system manipulation) | is related to | BlockL4-DFA (Interventions on lymphatic system) | ICHI has no "manipulation" action category for the lymphatic system; the lymphatic section contains procedural codes covering destruction, excision, drainage, repair, and reconstruction but not manual manipulation. The block is a related structural grouper, but the semantic match is only approximate. |
| 371909000 (Magnet induced pacing) | is related to | HFC.SN.AH (Pacemaker or cardioverter defibrillator function check) | Magnet-induced pacing is a specific technique used to test or override an implanted pacemaker by placing a magnet over it, which is functionally related to pacemaker function checking; however, no ICHI code specifically captures magnet-induced pacing as a therapeutic or diagnostic act. |
| 225995005 (Maintaining a safe environment) | is related to | VC1.TM.ZZ (Environment modification to influence safety-related behaviours, unspecified) | ICHI has no code for the nursing/care act of maintaining a safe immediate environment for a patient; the closest codes are in the public-health-oriented "safety-related behaviours" block (VC1), but the scope is population/behaviour-focused rather than individual patient-environment safety management. |
| 385877003 (Maintaining individual safety) | is related to | VC1.ZZ.ZZ (Other and unspecified interventions targeting unspecified safety-related behaviours) | ICHI's safety-related behaviour section (VC1) focuses on public health and behavioural interventions rather than the direct clinical/nursing act of maintaining an individual patient's safety; VC1.ZZ.ZZ is the most general residual code and is the closest available option. |
| 79821001 (Maintenance of cervical collar) | is related to | MBA.LC.AH (Application of cervical external immobilisation device) | ICHI contains only the application (initial fitting) of a cervical external immobilisation device, with no code for ongoing maintenance or adjustment of an existing collar. MBA.LC.AH is in the correct anatomical block and involves the same device type, but does not capture the maintenance/upkeep concept. |
| 21314009 (Maintenance of knee immobilizer) | is related to | MMJ.LC.AH (Application of external immobilisation device to the knee) | ICHI has a code for applying an external immobilisation device to the knee, but there is no ICHI code specifically representing maintenance (checking, adjusting, or reapplying) of an existing knee immobilizer. MMJ.LC.AH is the closest structural match — same target and device type — but it denotes initial application rather than ongoing maintenance, making the relationship related but not equivalent. |
| 171667000 (Maintenance of neurostimulator in cranial nerve) | is related to | AAN.KA.AA (Replacement of cranial nerve device) | ICHI does not have a dedicated "maintenance of neurostimulator" code for the cranial nerve target. The closest codes are AAN.KA.AA (replacement of cranial nerve device) and AAN.SC.BP (stimulation of cranial nerve); replacement covers the most common maintenance action (generator/electrode exchange), but the SNOMED concept is broader and includes all maintenance activities, so the mapping is only relationally approximate. |
| 12682005 (Maintenance of newborn thoracic drain) | is related to | JCB.KA.AA (Replacement of pleural drainage device) | ICHI has no dedicated code for maintenance of a thoracic/pleural drain, and does not represent neonatal-specific context. JCB.KA.AA (replacement of pleural drainage device) is the closest available code, capturing the most common maintenance activity for a drain, but it does not cover the full scope of maintenance nor the newborn-specific qualifier, making this only a related match. |
| 312834003 (Maintenance of ventricular shunt) | is related to | AAE.LI.AA (Ventricular shunt) | AAE.LI.AA describes creation of a ventricular shunt (LI = creation of shunt/bypass), whereas the SNOMED concept refers to maintenance/management of an existing shunt; ICHI has no dedicated "management of ventricular shunt" code, so the closest related code is the ventricular shunt category itself. |
| 710055003 (Management of aggressive behavior) | is related to | VB1.ZZ.ZZ (Other and unspecified interventions targeting unspecified violence-related behaviours) | Aggressive behaviour maps most closely to ICHI's violence-related behaviours section (BlockL3-VB1), as aggression is a form of violent behaviour. However, no ICHI code specifically addresses clinical management of aggressive behaviour (e.g., de-escalation), and the unspecified residual code VB1.ZZ.ZZ is the nearest available option under that domain; the match is related but imprecise. |
| 742878008 (Management of body temperature) | is related to | ETG.AB.ZZ (Measurement of body temperature) | ICHI has no single code for "management of body temperature" as a general concept — it splits into measurement (ETG.AB.ZZ), warming (PZA.SD.BQ), and cooling (PZA.SE.ZZ) as separate codes. The SNOMED concept is a broad management activity that encompasses monitoring and regulation, so no single ICHI code is equivalent; ETG.AB.ZZ (measurement) is the most commonly encountered activity within temperature management but does not capture the full scope of the SNOMED concept. |
| 700098008 (Management of bowel preparation for surgery) | is related to | KBP.JA.AC (Local irrigation of colon) | ICHI has no dedicated code for preoperative bowel preparation as a coordinated management activity; KBP.JA.AC (local irrigation of colon) represents the most clinically relevant ICHI procedure used in mechanical bowel prep, but bowel preparation for surgery also involves oral laxatives and patient instructions, none of which have a dedicated ICHI code, making this only a related match at best. |
| 1163378000 (Management of breast milk feeding attempts in 24 hours) | is related to | NUH.AA.ZZ (Assessment of lactation) | The SNOMED concept refers to tracking and managing the number of breast milk feeding attempts within a 24-hour period, which is primarily a monitoring and assessment activity within the lactation domain; NUH.AA.ZZ (assessment of lactation) is the closest ICHI code, but it is broader and does not capture the specific "attempts in 24 hours" counting/management dimension of the SNOMED concept. |
| 410127008 (Management of compliance with safety precautions) | is related to | VC1.PN.ZZ (Advising about safety-related behaviours, unspecified) | ICHI's BlockL3-VC1 (Interventions on safety-related behaviours) contains codes for advising, training, and counselling about safety behaviours but no code specifically for managing or enforcing compliance with safety precautions in a clinical setting; VC1.PN.ZZ (advising about safety-related behaviours) is the closest related concept, though the SNOMED concept has a compliance-monitoring/management intent not captured in ICHI. |
| 1163380006 (Management of concentration of breast milk) | is related to | NUH.AA.ZZ (Assessment of lactation) | ICHI has no code for measuring or managing breast milk concentration specifically; NUH.AA.ZZ (Assessment of lactation) is the closest available code under the Interventions on lactation block, but it covers assessment of lactation broadly rather than the specific clinical activity of monitoring or adjusting breast milk nutrient concentration. |
| 710062007 (Management of coping impairment) | is related to | SDJ.PP.ZZ (Counselling about handling stress and other psychological demands) | ICHI contains a well-developed block for interventions on "handling stress and other psychological demands" (SDJ), which is the closest functional equivalent to coping capacity in the ICHI framework; SDJ.PP.ZZ (counselling) is the most clinically proximate code, though the SNOMED concept is an umbrella management concept spanning assessment through intervention, and no single ICHI code captures that full breadth. |
| 741768003 (Management of fall prevention) | is related to | VCC.PM.ZZ (Education to influence home safety behaviours) | ICHI does not have a specific "fall prevention" code; the closest domain is the BlockL4-VCC "Interventions on home safety behaviours," which covers the environmental and behavioural context where falls most commonly occur. VCC.PM.ZZ (education to influence home safety behaviours) is representative of the preventive management intent, though the SNOMED concept is broader and encompasses clinical fall risk assessment and multifactorial fall prevention programmes that span multiple ICHI codes. |
| 710962009 (Management of financial circumstance) | is related to | SV2.PN.ZZ (Advising about engaging in economic life, not elsewhere classified) | ICHI has no code for managing a patient's financial circumstance as a clinical or social intervention target per se; the closest functional domain is BlockL4-SV2 "Interventions on economic life," which covers participation in economic life as a health-related activity. SV2.PN.ZZ (advising about engaging in economic life) captures the advisory/management orientation of the SNOMED concept, though the SNOMED term is broader and includes financial counselling, benefits navigation, and social determinants management not fully represented by any single ICHI code. |
| 713075008 (Management of fluid therapy) | is related to | PZA.DA.ZZ (Administering nutritional requirements, not elsewhere classified) | ICHI lacks a direct "fluid therapy" or "fluid management" code; PZA.DA.ZZ covers administering nutritional/fluid substances via unspecified route and is the nearest match for clinical fluid administration. The SNOMED concept also encompasses the monitoring, prescribing, and titration aspects of fluid therapy that go beyond simple administration, making this only a relatedto match. |
| 710967003 (Management of health status after discharge from hospital) | is related to | XG38D0 (Discharge planning) | XG38D0 "Discharge planning" is an ICHI extension code covering the planning process at the point of discharge, whereas the SNOMED concept refers to ongoing management and monitoring of health status after discharge has already occurred (i.e., post-discharge follow-up). These are temporally adjacent but distinct activities; no ICHI assignable code directly represents post-discharge health status management. |
| 710056002 (Management of impulse control) | is related to | AUH.PP.ZZ (Counselling for higher-level cognitive functions) | Impulse control is classified in ICF under higher-level cognitive functions, and ICHI has a dedicated block (AUH) for interventions on higher-level cognitive functions, but no code specifically targets impulse control. Counselling is a representative clinical intervention within this block, but the SNOMED concept encompasses a broader management approach not captured by a single ICHI code. |
| 710057006 (Management of inappropriate sexual behavior) | is related to | VEF.PQ.ZZ (Psychotherapy for sexual behaviours) | ICHI has a dedicated block (BlockL4-VEF) for interventions on sexual behaviours, and psychotherapy (VEF.PQ.ZZ) is the most clinically aligned intervention for managing inappropriate sexual behavior. However, the SNOMED concept implies a broader management umbrella not captured by any single ICHI category, and ICHI does not specifically encode "inappropriate" sexual behavior as a target. |
| 439372005 (Management of increased intracranial pressure) | is related to | AAG.JB.AA (Drainage of intracranial space) | ICHI does not have a code for management of intracranial pressure as a clinical concept; the nearest procedural match is drainage of the intracranial space (AAG.JB.AA), which is a key therapeutic intervention used to reduce elevated ICP. However, ICP management also encompasses monitoring, pharmacotherapy, and positioning — none of which are captured by this single code, making this a relatedto mapping. |
| 710966007 (Management of negative behavior) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI has no code for managing negative behaviour as a clinical activity; the residual "other health management encounter" code is the only plausible administrative mapping. The behavioural intervention codes in ICHI (e.g. VEL, ATH) address specific therapeutic techniques rather than clinical management of a behaviour problem. |
| 710964005 (Management of negative response to situation) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI contains no code for managing a patient's negative psychological response to a situational stressor; the residual whole-person management encounter code is the only approximate placeholder. Codes such as SDJ.PP.ZZ (Counselling for handling stress and psychological demands) describe a specific therapeutic technique, not the broader clinical management concept. |
| 710047005 (Management of negative response to treatment) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI does not have a code representing the clinical management of adverse or negative responses to treatment; this concept spans pharmacovigilance, clinical decision-making, and patient support that ICHI does not capture in a single code. The residual health management encounter code is the closest available mapping. |
| 408936000 (Management of prevention of harmful pattern of substance use) | is related to | VA1.WJ.ZZ (Policy change concerning substance-related and addictive behaviours, unspecified) | The SNOMED concept refers to managing a prevention programme targeting harmful substance-use patterns, which sits most closely within ICHI's public-health interventions on substance-related behaviours; VA1.WJ.ZZ (policy change on unspecified substance behaviours) captures a programmatic/management-level action, though it implies a policy-change action rather than day-to-day prevention programme management, making it a related but inexact fit. |
| 1217334008 (Management of respiratory device) | is related to | JTB.DE.AC (Artificial ventilation) | ICHI has no dedicated code for the management or servicing of a respiratory device (e.g. home oxygen equipment, CPAP, nebuliser); JTB.DE.AC (Artificial ventilation) is the nearest code within the respiratory function block but denotes the ventilation intervention itself, not device management, so the relationship is associative rather than equivalential. |
| 1163379008 (Management of volume of breast milk) | is related to | NUH.AA.ZZ (Assessment of lactation) | ICHI groups all lactation interventions under the NUH block (Interventions on lactation), but the available category codes focus on assessment, education, advising, and counselling about lactation — none specifically captures the clinical act of managing the volume of breast milk produced. NUH.AA.ZZ (Assessment of lactation) is the closest functional match within this block but represents only assessment rather than active volume management. |
| 237008007 (Maneuvers for delivery in shoulder dystocia) | is related to | NMR.LD.AC (Rotation of fetus) | ICHI has no code explicitly for shoulder dystocia maneuvers, which are a set of obstetric techniques (e.g., McRoberts, Woods screw, Rubin) used intrapartum to relieve impaction of the fetal shoulder. NMR.LD.AC (Rotation of fetus) captures one of the primary maneuver mechanisms and sits within the correct fetal structure block, but represents only one component of the broader set of dystocia maneuvers. |
| 277447009 (Manipulation of acid-base balance) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | Acid-base balance regulation is physiologically intertwined with water, mineral, and electrolyte balance, and the ETE block (Interventions on water, mineral and electrolyte balance functions) is the closest ICHI structural domain; however, ETE.AA.ZZ covers assessment only and no ICHI category specifically encodes active manipulation or correction of acid-base balance. |
| 112808008 (Manipulation of cardiovascular system) | is related to | IZZ.ZZ.ZZ (Interventions on the circulatory system, unspecified) | ICHI has no "manipulation" action defined for the cardiovascular system as a whole; the circulatory system block covers structural vascular/cardiac interventions while functional interventions sit under HT2. IZZ.ZZ.ZZ is a residual catch-all for unspecified circulatory interventions that is conceptually related but not a semantic match to the SNOMED concept of manipulation. |
| 82819003 (Manipulation of eyeball) | is related to | BZA.MK.AA (Repair of eyeball, not elsewhere classified) | ICHI has no dedicated "manipulation" action coded against the eyeball target (BZA); the available BZA codes cover imaging, biopsy, enucleation, foreign body removal, and repair. BZA.MK.AA (Repair of eyeball, NEC) is the closest procedural category on the same anatomical target, but "repair" is not equivalent to the broader SNOMED concept of manipulation. |
| 709098000 (Manipulation of lacrimal drainage structure) | is related to | BAD.JA.AA (Irrigation of lacrimal apparatus) | ICHI has no dedicated manipulation or probing code for the lacrimal drainage system; irrigation is the closest available procedure in the lacrimal apparatus block and shares clinical overlap with manipulation of that system (e.g., probing/syringing). However, irrigation does not semantically cover the full scope of manipulation, making this a related rather than equivalent match. |
| 449652005 (Manipulation of lower limb) | is related to | MRJ.PA.AH (Manipulation of joint of unspecified site) | ICHI has no code for manipulation of the lower limb as a whole; manipulation codes exist only for specific named joints (hip, knee, ankle, foot) or unspecified joint site, and soft-tissue codes cover only massage or stretch. The unspecified-joint manipulation code is the closest residual option but does not capture the broad anatomical scope (entire lower limb) or non-joint soft tissue implied by the SNOMED concept. |
| 103717000 (Manipulation of stent) | is related to | SN (Management of internal device) | ICHI uses the action axis code "SN" (Management of internal device) to cover adjustment, repositioning, or other manipulation of implanted devices such as stents, but "SN" alone is not an assignable category code and no body-site-neutral stent manipulation category exists in ICHI. The concept is closely related but not directly mappable to a single assignable ICHI code. |
| 449199004 (Manual inline stabilization of cervical spine) | is related to | MBA.LC.AH (Application of cervical external immobilisation device) | ICHI does not have a code for manual (hands-on, device-free) inline stabilization as performed in trauma/airway management; the closest code, MBA.LC.AH, involves applying a physical external immobilisation device to the cervical spine, which is a related but distinct intervention (device-based rather than purely manual). |
| 238230001 (Marsupialization of cyst of abdominal wall) | is related to | PAL.JB.AE (Percutaneous drainage of abdominal wall) | ICHI offers only a percutaneous drainage code for the abdominal wall; there is no open drainage code under PAL. Marsupialization is an open surgical procedure rather than percutaneous, so PAL.JB.AE is related but mismatches on technique and specificity. |
| 711534004 (Maternal cervical assessment) | is related to | NMF.AE.AC (Colposcopy) | No ICHI category exists specifically for cervical assessment in a maternal/obstetric context; NMF.AE.AC is the only examination-type code for cervix. Colposcopy is an instrument-assisted visual examination of the cervix, not a general clinical assessment, so the match is relatedto. |
| 236984003 (Mauriceau Smellie Veit maneuver) | is related to | NMR.LD.AC (Rotation of fetus) | The Mauriceau-Smellie-Veit maneuver is a specific obstetric technique to flex and deliver the aftercoming head in a vaginal breech delivery; ICHI has no dedicated code. NMR.LD.AC involves manual repositioning of the fetus per vaginum and is the closest related fetal manipulation code. |
| 879785009 (Mechanical dilation of pupil) | is related to | BBC.FC.AA (Release of iris) | ICHI has no dedicated code for mechanical pupil dilation; the closest structural match is "Release of iris", since mechanical dilation of the pupil is achieved by mechanically breaking iris adhesions (synechiae) or stretching iris tissue. |
| 82766007 (Medical testimony) | is related to | UEJ.RG.ZZ (Providing legal services, systems and policies) | ICHI has no code for expert witness or medical testimony as a distinct act; a clinician providing formal medical testimony in a legal proceeding is most plausibly classified under "providing legal services," but this is a structural approximation covering a much wider category of legal service delivery than testimony alone. |
| 424490002 (Medication prescription case management) | is related to | UAC.TB.ZZ (Planning in relation to medications) | There is no ICHI code for prescription case management specifically; UAC.TB.ZZ "Planning in relation to medications" is the closest available code as case management involves coordinating and planning a medication regimen, but it does not capture the prescription act itself nor the case management coordination component, making this a related but inexact match. |
| 770849006 (Medication review invitation) | is related to | UAC.VF.ZZ (Alert concerning medications) | ICHI has no code for inviting or recalling a patient for a medication review; UAC.VF.ZZ "Alert concerning medications" is the closest concept as both involve proactively notifying or flagging something medication-related to a recipient, but an alert is not semantically the same as a structured invitation to attend a medication review appointment. |
| 273993002 (Meninges operation) | is related to | BlockL5-AAC (Interventions on cerebral meninges) | "Meninges operation" is an unspecified, category-level SNOMED concept that encompasses operations on both cerebral and spinal meninges; no single ICHI category covers both anatomical sites together, and the block BlockL5-AAC covers only cerebral meninges (its spinal counterpart is BlockL5-ABC). A block code is assigned as the closest organisational grouping, but it remains only relationally matched because the SNOMED concept is anatomically broader (both meninges) and operationally unspecified. |
| 412894004 (Menopausal profile) | is related to | NUB.AA.ZZ (Assessment of menstruation functions) | A menopausal hormone profile is a laboratory panel (typically FSH, LH, oestradiol) used to assess menopausal status; ICHI has no code for menopause assessment, hormone panels, or gonadotrophin testing, and the closest related code — "Assessment of menstruation functions" (NUB.AA.ZZ) — covers a broader domain of menstrual function assessment that is only loosely related to a targeted biochemical menopausal panel. |
| 414669002 (Mental health monitoring invitation) | is related to | UEP.TI.ZZ (Referral to health provider) | A "monitoring invitation" is an administrative act directing a patient toward a mental health monitoring service — the closest ICHI concept is referral to a health provider, which captures the act of directing someone to a service, though it does not specifically convey the monitoring or mental health context. No ICHI code for invitation, recall, or call/reminder to services exists, making this a related but imprecise match. |
| 84218000 (Microdissection of nerve) | is related to | ACA.JG.AA (Debridement of peripheral nerve) | ICHI does not have a microdissection code nor does it distinguish the microscope-assisted technique; the closest available nerve procedure involving fine tissue removal/separation is debridement of peripheral nerve (ACA.JG.AA), but it is not semantically equivalent since debridement implies removing devitalised tissue rather than precise dissection under magnification. |
| 787995009 (Microdissection of tissue specimen) | is related to | PZX.AH.XH (Specimen collection of tissue) | Microdissection of a tissue specimen is a laboratory technique applied to an already-collected specimen to isolate specific cell populations, which is conceptually related to tissue specimen collection (PZX.AH.XH) but not equivalent — ICHI codes the act of collecting the specimen, not the downstream microscopic dissection of it. No ICHI code represents post-collection specimen microdissection. |
| 29906006 (Microdissection, spinal procedure) | is related to | ABN.FC.AA (Release of spinal nerve root) | Spinal microdissection typically refers to microsurgical decompression or dissection around spinal nerve roots; release of spinal nerve root (ABN.FC.AA) is the closest ICHI code capturing decompressive spinal nerve work, but it does not encode the microscope-assisted technique and represents only one of several possible spinal microdissection procedures. |
| 307072009 (Microsuction clearance of external auditory canal) | is related to | CAE.JD.AC (Removal of internal device or foreign body from external auditory canal) | ICHI does not have a dedicated cerumen/debris removal or microsuction code for the external auditory canal; CAE.JD.AC covers removal of foreign bodies/devices from that site and is the nearest structural match, but microsuction clearance typically targets cerumen or debris rather than a formal foreign body or device, making this only a relatedto mapping. |
| 1365656003 (Microsurgical denervation of spermatic cord) | is related to | NGD.MK.AA (Repair of spermatic cord) | ICHI has no code for denervation (nerve destruction/excision targeting the spermatic cord specifically), and the microsurgical approach is not represented as a means axis value. "Repair of spermatic cord" is the closest structurally relevant code on the spermatic cord block but does not convey denervation; this is a related but semantically distinct mapping. |
| 176478002 (Microsurgical epididymovasostomy) | is related to | NGD.LB.AA (Vasovasostomy) | ICHI does not have a dedicated code for epididymovasostomy (anastomosis between the epididymis and vas deferens); the closest available code is vasovasostomy (vas-to-vas anastomosis, NGD.LB.AA), which is a related but anatomically distinct reconstructive procedure in the same functional context of male fertility restoration. The microsurgical approach is also not encoded in ICHI's means axis. |
| 870627004 (Migraine therapy caloric vestibular stimulation) | is related to | CTE.PH.ZZ (Training of vestibular functions) | Caloric vestibular stimulation is a passive physical thermal stimulus applied to the ear canal to modulate vestibular input as a migraine therapy, which is distinct from vestibular training/rehabilitation. No ICHI code exists for therapeutic caloric stimulation; CTE.PH.ZZ is the closest code in the vestibular functions block but captures a different type of vestibular intervention. |
| 173995005 (Mobilization of intestine) | is related to | KMA.FC.AA (Release of peritoneal adhesions) | Surgical mobilization of the intestine most commonly involves releasing peritoneal attachments and adhesions, which is captured by KMA.FC.AA; however ICHI does not have a dedicated "mobilization of intestine" code, and KMA.FC.AA is anatomically framed around the peritoneum rather than the intestine itself, making this a related rather than equivalent match. |
| 229430003 (Mobilization of laryngeal structure) | is related to | JAN.FC.AA (Release of adhesions of larynx) | Mobilization of a laryngeal structure is conceptually closest to releasing laryngeal adhesions (JAN.FC.AA), as both involve freeing laryngeal tissues; however mobilization is a broader surgical maneuver that may not involve adhesions, so the match is related rather than equivalent. |
| 83164005 (Mobilization of mandible) | is related to | MAG.LD.AH (Closed reduction of mandibular bone) | Mandibular mobilization in clinical practice typically refers to manual or instrument-assisted manipulation to restore range of motion (e.g. after trismus or ankylosis), which is closest to closed reduction of mandibular bone (MAG.LD.AH) in ICHI; however ICHI has no dedicated mobilization code, and closed reduction implies a fracture context, making this a related rather than equivalent match. |
| 20124001 (Mobilization of testis in scrotum) | is related to | NGL.LC.AA (Orchiopexy) | Orchiopexy is the standard surgical procedure involving fixation of a testis in the scrotum, which typically requires mobilisation of the testis as a core surgical step; however, "mobilization of testis in scrotum" refers specifically to the mobilisation manoeuvre, which is only part of the full orchiopexy procedure, making this a related rather than equivalent match. |
| 229373006 (Mobilization of the lower limb) | is related to | MRJ.PB.AH (Mobilisation of joint of unspecified site) | ICHI has no single code covering mobilisation of the lower limb as a whole; it only offers joint-specific codes (hip, knee, ankle, foot/toe). The unspecified-site residual MRJ.PB.AH is the closest available approximation, but it loses the anatomical specification of "lower limb" entirely, making this a relatedto match rather than a true equivalent. |
| 229330002 (Mobilization of the upper limb) | is related to | MRJ.PB.AH (Mobilisation of joint of unspecified site) | ICHI has mobilisation codes for individual upper limb joints (shoulder, elbow, wrist, finger/hand) but no single code covering the entire upper limb as a region; MRJ.PB.AH is a residual joint mobilisation code that can accommodate the concept but loses anatomical specificity entirely. |
| 303079004 (Mobilization of tibiofibular joint) | is related to | MNJ.PB.AH (Mobilisation of ankle joint) | ICHI has no dedicated code for the tibiofibular joint; the lower leg musculoskeletal block (BlockL4-MNB) only classifies ankle joint interventions at the joint level, making MNJ.PB.AH the closest anatomical neighbour, though the tibiofibular joint is a distinct articulation from the ankle joint. |
| 229325001 (Mobilizing the trunk) | is related to | MBZ.PB.AH (Mobilisation of vertebra, not elsewhere classified) | No single ICHI code covers the trunk as a whole; separate codes exist for thoracic, lumbar, and sacral spine mobilisation, and MBZ.PB.AH serves as the vertebral column NEC residual, but it still excludes the thoracic cage and other non-vertebral trunk structures encompassed by the SNOMED concept. |
| 710988007 (Monitoring of tissue perfusion) | is related to | HT2.AM.ZZ (Observation of functions of the cardiovascular system, not elsewhere classified) | ICHI has no code for monitoring tissue perfusion specifically; the closest available concept is observation of cardiovascular system functions (HT2.AM.ZZ), which partially overlaps since perfusion depends on cardiovascular function, but tissue perfusion monitoring is more targeted (e.g., capillary refill, near-infrared spectroscopy) and not equivalent to general cardiovascular observation. |
| 413029008 (Monospecific reactions) | is related to | DTB.AC.ZZ (Test of functions of the immunological system) | A monospecific reaction is a serological or immunological testing method (a reaction involving a single antibody/antigen specificity), and DTB.AC.ZZ is the nearest ICHI category covering immunological function testing; however, "monospecific reactions" is a laboratory method concept rather than a clinical intervention category, so the match is relational rather than equivalent. |
| 225223002 (Motivating patient) | is related to | ATI.PP.ZZ (Counselling for energy and drive functions) | "Motivating patient" is a clinical activity aimed at increasing a patient's drive and volition, which falls within the ICHI domain of energy and drive functions (ATI), and counselling (PP) is the closest action axis available. However, "motivating" as a clinician activity is not a perfect semantic match to a structured counselling intervention, making this relatedto rather than equivalent. |
| 71081000 (Muscle graft) | is related to | MRM.JH.AA (Procurement of muscle of unspecified site for graft) | ICHI splits a "muscle graft" procedure across two codes — MRM.JH.AA for procurement of the donor muscle and MRM.ML.AA for reconstruction using the graft at an unspecified site — and neither alone fully represents the SNOMED concept of "muscle graft" as a single undifferentiated procedure. MRM.JH.AA is offered as the most directly related single code, but the mapping is approximate; ideally both codes together would better represent the full procedure. |
| 108125006 (Nerve manipulation) | is related to | ACA.LK.AA (Neurectasis of peripheral nerve) | ICHI has no generic "nerve manipulation" code; neurectasis (stretching/elongation of a nerve) is one form of mechanical nerve manipulation, but the SNOMED concept is broader and could encompass mobilisation, transposition, or other manual interventions — making this only a related rather than equivalent match. |
| 34105003 (Nerve teasing preparation) | is related to | ACA.AD.AA (Biopsy of peripheral nerve) | Nerve teasing is a histological laboratory preparation technique applied to nerve biopsy specimens to separate individual nerve fibres for microscopic examination; it is not a therapeutic intervention but a diagnostic processing step associated with nerve biopsy. ICHI does not contain a code for this preparatory technique, so the closest related code is peripheral nerve biopsy (ACA.AD.AA), though the teasing step itself is a laboratory procedure, not the biopsy excision. |
| 309467002 (Neurological observation regime) | is related to | AZZ.AA.ZZ (Neurological assessment, not elsewhere classified) | A "neurological observation regime" is a structured ongoing monitoring protocol (e.g. post-head injury neuro obs) rather than a single assessment event; ICHI has no code for surveillance regimes or repeated observation protocols, and the closest available code is the residual neurological assessment NEC (AZZ.AA.ZZ). This is a relatedto match as the SNOMED concept describes a care pathway/monitoring programme rather than a single classifiable intervention. |
| 408973002 (Neurovascular care) | is related to | AZZ.AA.ZZ (Neurological assessment, not elsewhere classified) | "Neurovascular care" is a broad care-delivery concept (encompassing monitoring, assessment, and management of neurovascular conditions such as stroke) with no direct ICHI equivalent. The closest available code is the neurological assessment NEC, which captures the assessment component but omits the treatment and care-coordination dimensions; the relationship is associative rather than equivalent. |
| 171324002 (New patient screening) | is related to | VDB.AA.ZZ (Assessment of screening behaviours) | ICHI does not have a code for a clinical screening encounter with a new patient; the VDB block covers interventions on screening behaviours (a public health/behavioural domain) rather than a clinical screening visit itself, making this only relatedly relevant. The concept is more precisely a health-service encounter than a behaviour-targeted intervention. |
| 704499004 (Non-imaging isotope study of sentinel lymph node) | is related to | DFA.BA.ZZ (Lymphogram, not elsewhere classified) | ICHI has no code for sentinel lymph node radionuclide/isotope study specifically; the closest available code is the generic lymphogram (imaging of lymph node, NEC) which captures lymphatic imaging but does not represent the non-imaging isotope/tracer aspect of sentinel node mapping. The modality and functional purpose diverge enough that this is a related-but-not-equivalent match. |
| 170516003 (Notification of disease) | is related to | UBC.VC.ZZ (Population public health surveillance) | "Notification of disease" (mandatory reporting of a notifiable condition to public health authorities) is conceptually related to public health surveillance, making UBC.VC.ZZ the nearest ICHI code. However, the match is only approximate — disease notification is a specific reporting act by a clinician or institution, whereas UBC.VC.ZZ describes broad population-level surveillance activities, making this a related-but-not-equivalent mapping. |
| 428426009 (Notification of physician) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not have a dedicated "notification of physician" code; UEP.TI.ZZ (Referral to health provider) is the closest concept in the health-services block, as both involve directing clinical communication toward a health professional, but referral implies action to engage a provider rather than simply informing one. |
| 709138001 (Notification of treatment plan) | is related to | PZB.TB.ZZ (Individualised planning) | ICHI has no "notification" or "communication of plan" code; PZB.TB.ZZ (Individualised planning) is the nearest concept as it covers the creation and management of an individualised care plan for the whole person, but it describes the planning activity itself rather than the act of notifying or communicating that plan to the patient or provider. |
| 2494005 (Nursing conference) | is related to | PZB.TD.ZZ (Case coordination) | A nursing conference is a structured interdisciplinary meeting to coordinate patient care, most closely related to case coordination in ICHI; however PZB.TD.ZZ is a clinical intervention on the patient rather than a professional meeting activity, so the match is only relational. |
| 410131002 (Nursing conference assessment) | is related to | PZB.AA.ZZ (General health assessment) | A nursing conference assessment evaluates a patient's status as part of a multidisciplinary conference; PZB.AA.ZZ captures the assessment dimension at the whole-person level but does not represent the conference/multidisciplinary coordination context. |
| 410132009 (Nursing conference education) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI has no code for a nursing conference as a care delivery modality, and no nursing-specific education concept at the whole-person level; PZB.ZY.ZY captures the residual health management encounter category that comes closest, but the match is only broadly relational. |
| 410135006 (Nursing coordination education) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI education codes (PM action axis) are all tied to specific body functions or clinical targets, not to care coordination processes; the residual health management encounter is the closest available code, but the match is only broadly relational. |
| 11553003 (Nursing report session) | is related to | PZB.TD.ZZ (Case coordination) | A nursing report session is a structured inter-professional communication activity (e.g., shift handover) for coordinating ongoing patient care, mapping most closely to "Case coordination"; however ICHI does not have a specific code for nursing handover or report-style meetings. |
| 385778002 (Nursing status report) | is related to | PZB.AA.ZZ (General health assessment) | A nursing status report documents and communicates the current clinical status of a patient, overlapping conceptually with a general health assessment of the whole person; ICHI has no code specifically for clinical documentation or status reporting. |
| 410139000 (Nursing status report management) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | The management component of a nursing status report concerns clinical decision-making and care planning during the report encounter; the residual whole-person health management encounter code is the closest available, but ICHI does not model nursing-specific management actions within a report session. |
| 133908009 (Obstetrical laceration care) | is related to | PAW.MK.AA (Repair of perineum) | ICHI has no code specifically for obstetrical laceration care; the perineum is the most frequent site of obstetric lacerations, making "Repair of perineum" the closest related code. However, obstetrical laceration care also encompasses repair of cervical, vaginal, and uterine tears. |
| 234726008 (Occlusal adjustment) | is related to | KAE.MK.AC (Restoration of tooth) | ICHI contains no specific code for occlusal adjustment (selective grinding/equilibration of tooth surfaces to modify bite); "Restoration of tooth" is the closest dental procedure code but covers restorative work rather than the selective reshaping that characterises occlusal adjustment. |
| 170896008 (Occupation risk monitoring) | is related to | VCB.VC.ZZ (Public health surveillance concerning workplace safety behaviours) | ICHI does not have a dedicated clinical occupational risk monitoring code; VCB.VC.ZZ is the closest concept, but it frames the activity as a population-level public health surveillance action rather than individual-level occupational risk monitoring. |
| 1285278006 (Occupational health promotion program) | is related to | VCB.VA.ZZ (Capacity building targeting workplace safety behaviours) | ICHI lacks a code explicitly for occupational health promotion programs; VCB.VA.ZZ is the closest structural match within the workplace safety block, but it emphasises capacity building rather than a broad health promotion program, and does not cover the full scope of occupational health beyond safety behaviours. |
| 84478008 (Occupational therapy) | is related to | SM1.PH.ZZ (Training in self care, unspecified) | ICHI does not have a single code for occupational therapy as a profession; the discipline's core domain — restoring functional independence in daily activities — maps most closely to "Training in self care, unspecified", though OT also spans work rehabilitation and household tasks, making any single code only a partial capture. |
| 424574000 (Occupational therapy education, guidance, counseling) | is related to | SM1.PP.ZZ (Counselling about self care, unspecified) | ICHI has no code specifically for "occupational therapy" as a discipline; the closest thematic anchor is counselling in the self-care activities-and-participation domain, which overlaps with the counseling component but misses the education/guidance components and the broader vocational scope. |
| 70031002 (Oophorostomy) | is related to | NMA.FA.AA (Incision of ovary) | Oophorostomy (surgical creation of a temporary opening/stoma in the ovary for drainage) is not represented explicitly in ICHI; the closest available code is NMA.FA.AA (Incision of ovary), which is related but semantically distinct — incision does not necessarily imply stoma creation, and dedicated drainage codes in the block describe drainage without stoma creation specifically. |
| 1332404004 (Open reattachment of intra-articular ligament) | is related to | MRJ.MK.AA (Repair of joint of unspecified site) | ICHI has ligament reattachment codes only for region-specific joints (shoulder, elbow, wrist) with no unspecified-site ligament reattachment code available; the closest unspecified-site concept is repair of joint. The action (reattachment) differs from repair, and the target is joint rather than ligament specifically, making this a related but non-equivalent match. |
| 450640001 (Open removal of products of conception from uterus) | is related to | NME.JB.AC (Suction curettage of uterus) | ICHI has no code explicitly for "removal of products of conception"; the closest procedural concepts are suction curettage and dilatation/curettage, both of which are common methods used to remove products of conception, but neither encodes the indication or the open surgical approach specified in the SNOMED concept. |
| 175843001 (Open removal of thrombus from vein) | is related to | IFD.JE.AA (Extraction of obstruction from vein of lower limb) | ICHI has no single generic vein thrombectomy code — venous thrombectomy codes are all anatomically specific; IFD.JE.AA for lower limb vein is the most common clinical context but the SNOMED concept is anatomically unspecified, making the relationship related rather than equivalent or wider. |
| 443683004 (Open revision of arteriovenous fistula using graft with removal of thrombus) | is related to | IFA.ML.AA (Reconstruction of artery of lower limb) | ICHI lacks a dedicated arteriovenous fistula revision or thrombectomy-with-graft code; IFA.ML.AA is used as a related match since the procedure involves open vascular reconstruction, but the target (AV fistula vs. native artery) and compound nature differ meaningfully from the ICHI title. |
| 396221000 (Opening of cranial suture) | is related to | MAA.FA.AA (Craniotomy) | No specific ICHI code exists for opening (incision/division) of a cranial suture (suturectomy/strip craniectomy); MAA.FA.AA (Craniotomy) is the closest available skull intervention involving bone opening, but a craniotomy is a bone flap procedure, whereas opening of a cranial suture is typically done for craniosynostosis correction. |
| 239548003 (Operation for spinal trauma) | is related to | MBZ.LD.AA (Open reduction of vertebra, not elsewhere classified) | "Operation for spinal trauma" is a vague umbrella concept with no direct ICHI equivalent; MBZ.LD.AA represents a common surgical intervention following spinal trauma but the SNOMED concept is broader and could encompass stabilisation, decompression, or other procedures. |
| 239613002 (Operation involving external fixators) | is related to | MDB.LC.AE (Percutaneous application of external fixator device to shoulder region) | ICHI contains only one assignable code referencing external fixators, and it is restricted to the shoulder region via percutaneous approach, whereas the SNOMED concept covers application of external fixators to any skeletal region. No broader cross-regional external fixator category exists in ICHI. |
| 41293005 (Operation on aortic body) | is related to | EZZ.ZZ.ZZ (Interventions on the endocrine system, unspecified) | The aortic body is a paraganglion (chemoreceptor tissue near the aortic arch) classified under the endocrine system in ICHI; no dedicated intervention code or block exists for the aortic body or paraganglion specifically, so the residual unspecified endocrine code is the closest available match. |
| 234311008 (Operation on cystic hygroma) | is related to | DFO.JI.AA (Local excision of lesion of lymphatic vessel) | A cystic hygroma is a cystic lymphatic malformation (lymphangioma), and surgical excision of the lesion maps to local excision of a lesion of the lymphatic vessel; however, the SNOMED concept covers any operation on the hygroma and the ICHI code specifies a particular action rather than any unspecified operation. |
| 27879009 (Operation on hypopharynx) | is related to | BlockL5-KAR (Interventions on oral pharynx) | ICHI does not have a dedicated block or category for the hypopharynx (laryngopharynx); BlockL5-KAR is the closest pharyngeal intervention section, but it covers the oropharynx rather than the hypopharynx, making it related but not equivalent. |
| 232839003 (Operation on implanted aortic valve) | is related to | HDE.KA.AA (Implantation of prosthetic valve in replaced aortic valve) | HDE.KA.AA specifically describes implanting a prosthetic valve into an already-replaced (implanted) aortic valve, which is the closest ICHI code; however, the SNOMED concept is a broad grouping of any operation on a previously implanted aortic valve, not limited to re-implantation. |
| 239277003 (Operation on lesion of muscle) | is related to | MRM.JI.AA (Local excision of lesion of muscle of unspecified site) | The SNOMED concept is a broad grouping for any operation on a muscle lesion (destruction, biopsy, excision, repair, etc.), while MRM.JI.AA specifically represents local excision; no single ICHI code covers all operations on muscle lesions generically. |
| 234308007 (Operation on lymphocyst) | is related to | BlockL5-DFZ (Interventions on lymphatic structure, unspecified) | ICHI has no specific code or block for lymphocyst (a post-surgical lymphatic fluid collection); the closest grouping is BlockL5-DFZ "Interventions on lymphatic structure, unspecified," which covers NEC lymphatic interventions including drainage or excision of unclassified lymphatic structures. The match is related but imprecise because a lymphocyst is a specific pathological entity not explicitly represented in ICHI. |
| 83502000 (Operation on tendon sheath) | is related to | MRT.AE.AA (Exploration of tendon sheath of unspecified site) | ICHI encodes tendon sheath operations as individual specific procedure codes (exploration, local excision of lesion) rather than a single grouping concept for all operations on tendon sheath. MRT.AE.AA is the most generic tendon sheath code at the unspecified-site level, but it captures only one type of operation (exploration); no single ICHI code or block maps cleanly to "any operation on tendon sheath," making this a related-but-not-equivalent mapping. |
| 22701007 (Operative procedure on artery of extremity) | is related to | BlockL4-ICA (Interventions on vessels of upper limb) | ICHI splits arteries of extremities by limb — "Interventions on vessels of upper limb" (BlockL4-ICA) and "Interventions on vessels of lower limb" (BlockL4-IFA) — with no single block that unifies all extremity arteries across both upper and lower limbs. There is no ICHI equivalent that spans the full scope of the SNOMED concept, so the best achievable match is relatedto using one of the limb-specific blocks; the mapping is inherently incomplete. |
| 108021004 (Operative procedure on male genitourinary system) | is related to | BlockL4-NGA (Interventions on male genital system) | The SNOMED concept covers the full male genitourinary system (both genital and urinary components), whereas BlockL4-NGA covers only the male genital system; the urinary system is a separate ICHI block at the same level. No single ICHI block or assignable code spans the combined male genitourinary scope, making this a related-but-partial match. |
| 107896002 (Operative procedure on skin of extremity) | is related to | BlockL5-LAE (Interventions on skin and subcutaneous cell tissue of the upper limb) | ICHI separates skin of upper limb (BlockL5-LAE) from skin of lower limb (BlockL5-LAG) with no single block covering both extremities together; the SNOMED concept spans both upper and lower extremity skin, so no single ICHI code or block is an equivalent match. |
| 38629001 (Operative procedure on the arteries of the thorax and abdomen) | is related to | BlockL4-IDA (Interventions on vessels of thorax) | The SNOMED concept spans both thoracic and abdominal arteries, but ICHI separates these into two distinct blocks — BlockL4-IDA (vessels of thorax) and BlockL4-IEA (abdominal vessels) — with no single block covering both together. |
| 185528003 (Opportunistic screening) | is related to | VDB.ZZ.ZZ (Interventions on screening behaviours, unspecified) | ICHI frames screening in the context of population-level behaviour change and public health (VDB block), whereas the SNOMED concept refers to the clinical act of screening an individual opportunistically during a routine encounter; the ICHI code is thematically related but operates at a different level of abstraction. |
| 120097003 (Orbit manipulation) | is related to | BAM.MK.AA (Repair of orbit) | ICHI has no manipulation-of-orbit code; the manipulation action axis is only represented in ICHI for joint/musculoskeletal targets, not for the orbit. "Repair of orbit" is the closest orbit-targeted intervention, but does not align precisely with manipulation. |
| 1156959004 (Organization of housing adapted to meet physical needs) | is related to | UAL.TM.ZZ (Environment modification to aspects of buildings for private use) | "Organization of housing adapted to meet physical needs" describes arranging modifications to a patient's home to accommodate physical limitations; the ICHI code captures the physical modification act but does not specifically convey the organizational/coordination aspect nor the disability-needs framing. |
| 239365006 (Orthognathic assessment and planning) | is related to | PZB.TB.ZZ (Individualised planning) | Orthognathic assessment and planning is a specialist pre-surgical process evaluating jaw relationships. ICHI contains no dedicated orthognathic or craniofacial assessment/planning code; PZB.TB.ZZ is the closest generic match capturing the planning component but is far broader. |
| 46209003 (Orthotic evaluation for brace fitting) | is related to | PZB.AA.ZZ (General health assessment) | ICHI has no dedicated code for orthotic evaluation or brace fitting assessment; the closest is the general health assessment code PZB.AA.ZZ, which captures the evaluative intent but lacks the specificity of an orthotic/brace fitting assessment. |
| 11924009 (Orthotics training of upper extremities) | is related to | PMA.DP.AH (Installation of assistive product to upper limb, not elsewhere classified) | ICHI has no code specifically for orthotics training of the upper limb; PMA.DP.AH captures the fitting/application dimension but not the training/instruction component that is central to the SNOMED concept. |
| 79518006 (Ossiculectomy with tympanoplasty revision) | is related to | CBF.ML.AC (Ossicular chain reconstruction) | The SNOMED concept combines ossicle removal with revision tympanoplasty. CBF.ML.AC covers ossicular chain reconstruction but represents repair/reconstruction rather than excision, and does not capture the tympanoplasty revision component; no single ICHI code encompasses both elements. |
| 104221004 (Ova and parasites, specimen concentration, direct smear, and interpretation) | is related to | PZX.AH.XG (Specimen collection of faeces) | PZX.AH.XG covers faecal specimen collection, which is the starting point for ova and parasite examination, but the SNOMED concept additionally encompasses concentration technique, direct smear preparation, and result interpretation. |
| 47454007 (Ovarian denervation) | is related to | NME.GA.AC (Paracervical uterine denervation) | ICHI contains no code for ovarian denervation specifically; the closest available is paracervical uterine denervation, which is a denervation procedure in the same female pelvic anatomical region but targets the uterus/cervix rather than the ovary. |
| 103735009 (Palliative care) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI contains no dedicated "palliative care" code; the whole-person health management encounter (PZB target) is the most conceptually related category, as palliative care is a comprehensive, person-centred management approach, but it lacks the specificity of the palliative intent and is a residual/unspecified code. |
| 712999003 (Palliative debulking of neoplasm for symptom relief) | is related to | KCO.JJ.AA (Partial excision of pancreas) | ICHI does not have a generic "debulking of neoplasm" concept nor any palliative-intent modifier; the closest structural analogue in a typical debulking scenario would be partial excision of an organ, but this code is site-specific to the pancreas and carries no palliative or neoplasm-reduction intent. Because the SNOMED concept is anatomically unspecified and intent-focused, no ICHI code captures both axes, making this only a related match. |
| 10274009 (Partial overdenture) | is related to | KAE.MK.AC (Restoration of tooth) | ICHI has no specific code for overdentures (prostheses retained over residual tooth roots or implants); the closest available dental prosthetic/restorative code is KAE.MK.AC "Restoration of tooth," but an overdenture is a removable prosthetic appliance rather than a direct tooth restoration, making this only a related match. |
| 233151008 (Patch enlargement of conduit anastomosis) | is related to | HBB.KA.AA (Replacement of conduit between right ventricle and pulmonary artery) | Patch enlargement of a conduit anastomosis (typically the right ventricle-to-pulmonary artery conduit junction in congenital heart surgery) is structurally related to HBB.KA.AA, which covers conduit replacement in that circuit. However, the SNOMED concept specifically describes patch augmentation of the anastomotic site rather than full conduit replacement, making this a related-but-not-equivalent mapping. |
| 386385007 (Patient contracting) | is related to | PZB.TB.ZZ (Individualised planning) | "Patient contracting" refers to the formal process of negotiating and establishing a care agreement or behavioural contract with a patient — this is most closely related to PZB.TB.ZZ (Individualised planning), which covers tailored care planning with the individual. The concepts overlap substantially but are not equivalent: contracting emphasises a mutual agreement with specific goals and consequences, while individualised planning is broader. |
| 1258989004 (Patient disciplinary discharge) | is related to | XG38D0 (Discharge planning) | ICHI's XG38D0 covers the planning and coordination of patient discharge, whereas the SNOMED concept specifically denotes a disciplinary (punitive/against-medical-advice) discharge act. The two are related within the discharge domain but are not semantically equivalent, as ICHI does not distinguish the disciplinary nature. |
| 386386008 (Patient rights protection) | is related to | SXK.TA.ZZ (Advocacy in relation to enjoying human rights) | ICHI has no direct "patient rights protection" code; SXK.TA.ZZ (advocacy for enjoying human rights) is the closest concept, covering rights-protection advocacy in a civic/participation context, but it is framed around enabling a person to enjoy rights rather than protecting a patient's clinical or legal rights specifically. |
| 439096006 (Percutaneous balloon test occlusion of anterior cerebral artery using fluoroscopic guidance with contrast) | is related to | IAA.LA.AF (Endovascular embolisation or occlusion of intracranial artery) | The SNOMED concept is a temporary diagnostic balloon test occlusion (to assess tolerance before definitive treatment), whereas the ICHI code represents therapeutic/permanent endovascular occlusion; the target (intracranial artery) and endovascular approach align, but the temporary/diagnostic "test" nature of the procedure has no ICHI equivalent, making this only a related match. |
| 16629601000119108 (Percutaneous catheterization of portal vein) | is related to | IEF.BA.BB (Angiography of the portal vein and branches with contrast medium) | ICHI has no dedicated code for percutaneous portal vein catheterization as a standalone access procedure; the portal vein block (IEF) lacks a pure "catheterization/cannulation" entry, and the angiography code is the closest procedure that inherently requires percutaneous catheter placement of the portal vein, though it includes the additional step of contrast imaging not implied by the SNOMED concept. |
| 241181007 (Percutaneous cyst puncture and cystogram) | is related to | KMA.BA.BB (Contrast radiography of peritoneum) | The SNOMED concept combines a percutaneous cyst puncture with contrast imaging (cystogram), but ICHI lacks any generic "cyst puncture with contrast" code; KMA.BA.BB captures only the contrast imaging component applied to peritoneal structures and does not encode the puncture or the unspecified cyst target, making it only relatedly associated rather than equivalent or approximate. |
| 609233003 (Percutaneous radiofrequency ablation of epicardium) | is related to | HFC.GA.AF (Percutaneous transluminal ablation of cardiac conduction system) | ICHI has no dedicated epicardial ablation code; the closest available code targets ablation of the cardiac conduction system via a percutaneous transluminal route, which shares the percutaneous approach and ablation action but refers to the conduction system rather than the epicardium specifically. The target mismatch (cardiac conduction system vs. epicardium) makes this a related but not equivalent mapping. |
| 432053002 (Percutaneous reposition of temporary filter of inferior vena cava using fluoroscopic guidance with contrast) | is related to | HIC.DL.AF (Percutaneous transluminal insertion of device in inferior vena cava) | ICHI has no code specifically for repositioning an IVC filter; the closest available codes are device insertion (HIC.DL.AF) and device removal (HIC.JD.AF) in the IVC, neither of which captures repositioning. HIC.DL.AF is chosen as the closest structural analogue (percutaneous transluminal device intervention in the IVC), but the action — repositioning rather than inserting — is meaningfully different. |
| 431933001 (Percutaneous thrombolysis of central venous catheter using fluoroscopic guidance with contrast) | is related to | IZD.DB.AF (Thrombolysis of vein, not elsewhere classified) | The SNOMED concept targets thrombus within or on a central venous catheter, whereas ICHI's thrombolysis codes all target named veins; IZD.DB.AF is the NEC vein thrombolysis residual code and is related in that the catheter resides within a central vein, but the procedural target (device vs. vessel lumen) differs and no ICHI code specifically represents catheter-directed thrombolysis. |
| 428974002 (Percutaneous transluminal embolization of aneurysm using liquid polymer) | is related to | IZA.LA.AF (Endovascular occlusion of artery, not elsewhere classified) | Endovascular embolization of an aneurysm is fundamentally an occlusion procedure performed via a percutaneous transluminal/endovascular route, matching the action and means of IZA.LA.AF; however, the SNOMED concept specifies an aneurysm and the liquid polymer agent, neither of which is reflected in the ICHI code, and the anatomical location of the aneurysm is unspecified. |
| 276977004 (Percutaneous venous thrombectomy) | is related to | IED.LA.AF (Endovascular embolisation or occlusion of abdominal or pelvic vein) | ICHI lacks a dedicated generic "percutaneous venous thrombectomy" code; the thrombectomy codes that exist are site-specific (atrium, pulmonary vein) and do not match a general venous thrombectomy. IED.LA.AF covers endovascular interventions on abdominal/pelvic veins but represents occlusion/embolisation rather than clot extraction, making it only relatedly equivalent. |
| 11037005 (Perineal care in obstetrics) | is related to | PAW.MK.AA (Repair of perineum) | No ICHI code exists for generic perineal care in an obstetric context; the SNOMED concept covers hygiene, wound care, and supportive nursing of the perineum in the postnatal/obstetric setting. PAW.MK.AA (repair of perineum) is the most related interventional code on the same target body part but is a surgical repair rather than general nursing/care, making this a related-but-not-equivalent mapping. |
| 238311003 (Peritoneal ovum and spermatozoa transfer) | is related to | NMC.DH.AB (Fallopian tube reproductive transfer procedures) | ICHI has no code for intraperitoneal gamete transfer (POST/PROST); the nearest assignable code is the fallopian tube reproductive transfer category (GIFT), which covers a procedurally similar but anatomically distinct gamete transfer route. The two procedures share the same clinical intent (direct gamete transfer for assisted reproduction) but differ in the target site (fallopian tube vs. peritoneal cavity). |
| 238282004 (Peritoneal pseudocyst marsupialization) | is related to | KMA.JI.AA (Local excision of lesion of peritoneal tissue) | ICHI does not have a dedicated marsupialization action code; marsupialization of a pseudocyst is functionally the closest to local excision or unroofing of a peritoneal lesion, making KMA.JI.AA the best available approximation. However, marsupialization creates a permanent open drainage pouch rather than excising tissue, so the match is related but not directly equivalent. |
| 13685004 (Pharyngostomy) | is related to | KAR.FA.AA (Oral pharyngotomy) | ICHI has no dedicated pharyngostomy code (surgical creation of a permanent stoma into the pharynx); the LI action ("creation of opening/stoma") is not paired with any pharynx target code in the classification. KAR.FA.AA "Oral pharyngotomy" is the most anatomically relevant code but represents a simple incision rather than a stoma formation, making it related but not equivalent. |
| 363778006 (Phenotype determination) | is related to | DTB.AC.ZZ (Test of functions of the immunological system) | Phenotype determination (e.g. blood group or HLA phenotyping) is a laboratory/functional testing procedure with no direct ICHI equivalent; the immunological function test code DTB.AC.ZZ is the closest available concept in ICHI but is broader and does not specifically capture phenotypic characterisation. The relationship is associative rather than hierarchical, making "relatedto" the most appropriate equivalence. |
| 10460004 (Phlebectomy with graft replacement) | is related to | IFD.ML.AA (Reconstruction of lower limb vein) | ICHI does not have a combined phlebectomy-with-graft code; IFD.ML.AA (reconstruction of lower limb vein) captures the reconstructive/replacement component of the procedure but omits the excision element and assumes a lower-limb site that is not specified in the SNOMED concept. The match is related but not equivalent. |
| 229557004 (Phonophoresis therapy) | is related to | LZZ.SC.BP (Iontophoresis) | Phonophoresis (ultrasound-driven transdermal drug delivery) and iontophoresis (electric-current-driven transdermal drug delivery) are distinct physical modalities but share the same therapeutic purpose of enhancing percutaneous drug penetration; ICHI encodes iontophoresis but has no dedicated phonophoresis code, so this is the closest available concept. The relationship is functional rather than exact, warranting "relatedto" rather than "inexact." |
| 71887002 (Photocoagulation of orbital lesion) | is related to | BAM.JI.AA (Local excision of lesion of orbit) | ICHI has no destruction or photocoagulation code for the orbit — the orbit block (BlockL5-BAM) contains only excision, aspiration, decompression, and imaging codes, with no GA (destruction) action available. The closest anatomical match is BAM.JI.AA (local excision of lesion of orbit), but this is a surgical excision rather than light-based coagulative destruction, making this only a related concept rather than an equivalent or inexact match. |
| 406174002 (Phototherapy: mood regulation) | is related to | PZA.SC.AH (Whole body phototherapy) | ICHI contains no dedicated code for phototherapy as a psychiatric or mood-regulation intervention; all ICHI phototherapy codes are framed as dermatological treatments targeting skin tissue. Whole body phototherapy (PZA.SC.AH) shares the physical modality (broad-spectrum or bright light exposure) but its ICHI semantic scope is somatic rather than mood-directed, making it a related-but-not-equivalent match. |
| 406175001 (Phototherapy: sleep regulation) | is related to | ATK.ZZ.ZZ (Other interventions on sleep function, not elsewhere classified) | ICHI has no specific code for phototherapy applied to regulate sleep (e.g., bright light therapy for circadian rhythm or insomnia management); the dedicated phototherapy codes are dermatological in framing. ATK.ZZ.ZZ (Other interventions on sleep function, NEC) captures the sleep-regulation target and the "not elsewhere classified" nature of this technique within the sleep functions block, making it the closest available residual fit. |
| 71318009 (Physical medicine consultation and report) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI lacks a specific code for a physical medicine (PM&R) specialist consultation with report; PZB.ZZ.ZZ covers an unspecified health management encounter at the whole-person level, which is the closest structural analog, but it does not convey the specialist consultation or documentation-of-report semantics of the SNOMED concept. |
| 57139001 (Physical medicine service to one body area) | is related to | PZX.AA.AH (Assessment of body part, not elsewhere classified) | This SNOMED concept describes a physical medicine treatment/intervention applied to a single body area, without specifying the nature of the intervention (it is a billing-level descriptor of scope, not a named procedure). ICHI does not have a code representing "a physical medicine service of unspecified type to one body area"; PZX.AA.AH captures the body-area specificity but reflects only an assessment action, not treatment, making this a related but not equivalent match. |
| 48530002 (Physical medicine service to three or more body areas) | is related to | PZA.AE.AH (Physical examination of whole body) | This SNOMED concept is a billing descriptor for physical medicine intervention covering three or more body areas — implying a widespread or multi-region treatment scope — but specifies neither the type of intervention nor that it is only an examination. PZA.AE.AH is the closest ICHI code in the sense of covering the whole body rather than a single site, but it denotes physical examination rather than treatment, and the match is therefore relational rather than equivalent. |
| 23027005 (Physical medicine service to two body areas) | is related to | PZX.AA.AH (Assessment of body part, not elsewhere classified) | Like the one-area and three-or-more-area counterparts, this concept is a billing-level descriptor of treatment scope (two body areas) without specifying the intervention type, and ICHI contains no code modelling quantity-of-body-areas as a classification dimension. PZX.AA.AH is the least-poor fit as an unspecified body-site intervention code, but captures only an assessment action and not the bilateral/multi-site treatment scope encoded in the SNOMED concept. |
| 424203006 (Physical therapy education, guidance and counseling) | is related to | MV2.PN.ZZ (Advising about movement function, not elsewhere classified) | ICHI does not offer a single code covering education, guidance, and counselling specifically in a physiotherapy context — the PM (Education), PN (Advising), and PP (Counselling) action codes are each distinct and all tied to specific body function targets. MV2.PN.ZZ (advising about movement function, NEC) represents the closest single ICHI code given movement functions are the primary concern of physical therapy, but it captures only the advising dimension and is not a genuine equivalent. |
| 386424007 (Physician support) | is related to | PZB.TD.ZZ (Case coordination) | "Physician support" in the SNOMED context implies ongoing clinical management and coordination provided by a physician to a patient, which maps most plausibly to PZB.TD.ZZ (Case coordination) under the whole-person interventions block. The ICHI code focuses on service coordination rather than direct physician-patient clinical support, making this a related but not equivalent match. |
| 6712008 (Piercing of nail) | is related to | LBD.JB.AE (Percutaneous drainage of nail of finger) | Clinical nail piercing in SNOMED CT refers to nail trephination — creating a small hole through the nail plate to drain a subungual haematoma — which is most closely represented by percutaneous drainage of the nail/nail bed (LBD.JB.AE for finger, LBF.JB.AE for toe). The match is relatedto rather than inexact because the clinical intent (decompression via puncture) aligns well, but ICHI does not specify the toe-vs-finger distinction and frames the action as "drainage" rather than "piercing/trephination." |
| 75928003 (Pinard maneuver) | is related to | NMR.LD.AC (Rotation of fetus) | The Pinard maneuver is an internal obstetric technique that flexes the fetal leg to convert a frank breech to a footling breech for delivery — it is a manipulation of fetal position/limb, not a pure rotation. NMR.LD.AC (Rotation of fetus) is the closest available ICHI code in the fetal interventions block, but it does not accurately describe the leg-flexion nature of the maneuver, making the relationship related rather than equivalent or wider. |
| 225955008 (Positioning accessible commode) | is related to | SMD.RB.ZZ (Practical support with toileting) | "Positioning accessible commode" is a nursing/support action to facilitate toileting for a patient with limited mobility; ICHI's closest match is practical support with toileting (SMD.RB.ZZ), which captures the assistive/support nature, though ICHI does not have a specific code for the act of arranging/positioning the commode itself. |
| 127778006 (Positive expiratory pressure mask physiotherapy) | is related to | JTG.RB.ZZ (Practical support with coughing, sneezing, expectorating and other respiratory functions related to breathing) | PEP mask physiotherapy is an airway clearance technique that uses a mask with resistance to facilitate secretion mobilisation and expiration; JTG.RB.ZZ is the closest ICHI code as it covers practical support with expectorating and breathing-related functions, but ICHI has no specific code for PEP therapy itself nor for the device-assisted technique. |
| 28860009 (Prague maneuver) | is related to | NMR.LD.AC (Rotation of fetus) | The Prague maneuver is a specific obstetric technique used in breech vaginal delivery to deliver the after-coming head, involving rotation and traction of the fetus; ICHI's "Rotation of fetus" (NMR.LD.AC) is related but captures only the rotational component and does not fully represent the complete maneuver, which also involves specific traction and flexion actions not encoded separately in ICHI. |
| 386391009 (Preceptoring: employee) | is related to | UEP.PH.ZZ (Training about health services, systems and policies) | Preceptoring of a health-care employee is a structured clinical teaching/training relationship; UEP.PH.ZZ (training about health services, systems and policies) is the closest ICHI concept, but the match is approximate — the ICHI code targets training about health service topics at a systems level rather than the individualised workplace supervision and skill-transfer that characterises preceptoring. |
| 1230099001 (Preparation of injection for self administration by subject) | is related to | UAC.PH.ZZ (Training about medications) | The SNOMED concept describes preparing an injection that the patient will self-administer — a practical medication-related task — while UAC.PH.ZZ covers training about medications broadly. No ICHI code exists for the act of physically preparing an injectable dose for self-administration; the closest is medication training under the medicaments target axis. |
| 304546001 (Preparation of patient) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI has no dedicated code for general patient preparation (e.g., pre-procedural or pre-operative preparation); PZB.ZZ.ZZ under "Interventions on whole person" is the broadest available catch-all for whole-person health management encounters, but it does not specifically represent patient preparation as an act. |
| 185925007 (Prescription event monitoring) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | No ICHI code exists for post-marketing prescription event monitoring (a pharmacovigilance/drug surveillance activity); PZX.TI.ZZ represents pharmacotherapy prescription itself, which is related but covers the act of prescribing rather than the epidemiological monitoring of outcomes associated with prescriptions. |
| 397939007 (Preservation of spontaneous respiration during anesthesia or sedation) | is related to | JTB.AM.ZZ (Observation of respiration function) | ICHI has no code for actively maintaining or preserving spontaneous breathing during anaesthesia/sedation; JTB.AM.ZZ (Observation of respiration function) is the closest related concept, but it captures monitoring rather than the deliberate anaesthetic technique of preserving spontaneous ventilation. |
| 275826003 (Preventing injury) | is related to | VC1.PM.ZZ (Education to influence safety-related behaviours, unspecified) | ICHI encodes injury prevention primarily through its safety-related behaviour interventions block (VC1); VC1.PM.ZZ captures educational interventions aimed at changing safety behaviours, which is one major mode of injury prevention, but the SNOMED concept "Preventing injury" is broader and encompasses environmental modification, legislation, and clinical interventions not captured by a single ICHI code. |
| 713115004 (Prevention of constipation) | is related to | KTK.ZZ.ZZ (Other interventions on defaecation function, not elsewhere classified) | ICHI has no dedicated "prevention of constipation" code; KTK.ZZ.ZZ covers unspecified interventions on defaecation function, which is the physiological target of constipation prevention, but the code is a residual category that does not specify the preventive intent. |
| 710974008 (Prevention of osteoporosis) | is related to | MTD.PG.ZZ (Assisting and leading exercise for mobility of bone functions) | ICHI contains no code specifically representing prevention of osteoporosis; the closest functional category is exercise intervention on bone mobility (MTD.PG.ZZ), which represents one component of osteoporosis prevention but is far narrower than the SNOMED concept. No ICHI code captures the full preventive intent across pharmacological, nutritional, and physical activity dimensions. |
| 1303711008 (Prevention of pre-eclampsia) | is related to | NUE.PM.ZZ (Education about functions related to pregnancy) | ICHI has no code for prevention of pre-eclampsia or hypertensive disorders of pregnancy; the pregnancy functions block (NUE) contains only generic assessment, monitoring, training, and education codes. NUE.PM.ZZ (education about functions related to pregnancy) is the broadest available proxy, but it does not capture the clinical specificity of pre-eclampsia prevention (e.g., low-dose aspirin, calcium supplementation, risk stratification). |
| 225996006 (Prevention of pressure injury) | is related to | LTC.LD.ZZ (Positioning to protect skin functions) | LTC.LD.ZZ is the most specific ICHI code available, covering repositioning as a skin-protective intervention, which is a core component of pressure injury prevention. However, it captures only the positioning aspect and not the full spectrum of pressure injury prevention (risk assessment, mattress/cushion selection, skin inspection, nutrition support). |
| 710973002 (Prevention of unwanted pregnancy) | is related to | NUD.PN.ZZ (Advising about functions related to fertility) | ICHI has no dedicated "contraception" or "pregnancy prevention" code; the closest match is advising about fertility functions (NUD.PN.ZZ), which overlaps in intent but is a narrower communicative act rather than the broad preventive programme concept that SNOMED encodes. |
| 179729007 (Primary prosthetic replacement of ligament) | is related to | MML.ML.AA (Reconstruction of ligaments of knee) | ICHI has no generic "prosthetic replacement of ligament" code applicable to all body sites; ligament codes are organised by anatomical region and the closest procedural concept available is reconstruction of ligaments (ML action), most commonly applied at the knee (MML.ML.AA). However, this is only related rather than equivalent because the SNOMED concept is body-site-agnostic and specifically denotes prosthetic replacement (implantation of a synthetic device), whereas ICHI reconstruction includes biological grafts and is site-specific. |
| 179699009 (Primary reduction of injury to growth plate) | is related to | MRB.LD.AA (Open reduction of bone of unspecified site) | ICHI has no code specifically targeting the growth plate (physis/epiphysis) as an anatomical target for reduction; the closest available concept is open reduction of bone at an unspecified site (MRB.LD.AA), which shares the reduction action on a musculoskeletal structure. This is only a related match because the SNOMED concept specifies the growth plate as the injury site and does not specify open versus closed approach, while MRB.LD.AA applies to bone generally and is approach-specific. |
| 179735007 (Primary xenograft replacement extra-articular ligament) | is related to | MML.ML.AA (Reconstruction of ligaments of knee) | ICHI has no code for xenograft (animal tissue) replacement of an extra-articular ligament as a generic concept; MML.ML.AA covers reconstruction of knee ligaments and is the closest structural analogue, but it is knee-specific and does not capture the xenograft graft type or the extra-articular location specified in the SNOMED concept. |
| 118742003 (Procedure on bursa) | is related to | BlockL5-MRS (Interventions on soft tissue unspecified site) | ICHI has no dedicated bursa block or target axis code; a bursa is a synovial sac classified under soft tissue, so BlockL5-MRS (Interventions on soft tissue unspecified site) is the closest structural home in the musculoskeletal chapter. The match is relatedto rather than equivalent or inexact because the ICHI block is broader (all soft tissue) and does not specifically represent bursa, making a precise equivalence claim unjustified. |
| 118690002 (Procedure on head) | is related to | BlockL5-PAB (Interventions on head or neck, not otherwise specified) | ICHI does not have a single block or code representing "all interventions on the head" as a whole; procedures on head structures are distributed across multiple system-based chapters (neurological, ENT, ophthalmological, oral, vascular, etc.). The closest structural match is BlockL5-PAB ("Interventions on head or neck, not otherwise specified"), but this covers only the topographical NOS residual category and also includes neck, making it an imprecise, related mapping rather than equivalent. |
| 118686004 (Procedure on immune system) | is related to | BlockL3-DAA (Interventions on the haematopoietic or lymphatic system) | ICHI has no dedicated "immune system" block; the closest structural grouping is BlockL3-DAA covering haematopoietic and lymphatic system interventions (tonsil, thymus, lymph nodes, bone marrow, spleen, blood). This overlaps significantly with the immune system but does not cover it completely. |
| 118752004 (Procedure on ligament) | is related to | BlockL3-MAA (Interventions on the musculoskeletal system) | ICHI does not have a single cross-body ligament block; ligament procedures are distributed across seven body-site-specific Level-5 blocks with no common parent that isolates ligaments, so only the broad musculoskeletal chapter can be assigned. |
| 439488009 (Procedure on lymphatic system using imaging guidance) | is related to | DFO.BA.BB (Lymphangiogram) | ICHI does not have a dedicated grouping for "lymphatic system procedures using imaging guidance"; DFO.BA.BB is the closest imaging-related code but is one specific procedure. Imaging guidance is encoded in the Means axis of individual codes rather than as a procedure class. |
| 373383001 (Procedure on oculomotor system) | is related to | BlockL4-BDA (Interventions on ocular muscles) | The oculomotor system includes both extraocular muscles (BlockL4-BDA) and the oculomotor nerve (cranial nerve III, BlockL5-AAN); no single ICHI code spans both components. BlockL4-BDA is the closest structural match but represents only the muscular component. |
| 430820001 (Procedure on tissue specimen) | is related to | PZX.AH.XH (Specimen collection of tissue) | PZX.AH.XH is the closest ICHI code for working with tissue specimens, covering the act of collecting a tissue sample. However, the SNOMED concept could include laboratory analysis or other manipulations of an already-collected specimen. |
| 118867005 (Procedure on uterine ligament) | is related to | BlockL5-NME (Interventions on uterus) | ICHI has no dedicated block or category for interventions specifically on uterine ligaments. The closest available grouping is the uterus interventions block, which contains one ligament-specific code but does not represent the full scope of uterine ligament procedures. |
| 238340000 (Procedure to costal cartilage) | is related to | BlockL5-PAF (Interventions on chest wall, not otherwise specified) | ICHI has no dedicated block or category for interventions specifically targeting costal cartilage. The closest procedural grouping covers the anatomical region but is broader and not costal-cartilage-specific. |
| 121581000146106 (Promotion of physical health) | is related to | BlockL4-VEB (Interventions on physical activity behaviours) | "Promotion of physical health" is a broad concept covering multiple lifestyle domains, while ICHI organises health-promotion actions at the level of specific behavioural targets such as physical activity; no single ICHI category captures the full breadth of the SNOMED concept. |
| 225345004 (Promotion of self-care) | is related to | SM1.PH.ZZ (Training in self care, unspecified) | ICHI's SM1 block covers interventions on self care, and SM1.PH.ZZ is the closest action-oriented code, but "promotion of self care" encompasses a wider range of supportive actions (education, counselling, advocacy) beyond training alone. |
| 444813003 (Prophylactic immunotherapy) | is related to | DTB.VD.AE (Percutaneous vaccination) | ICHI does not have a specific "prophylactic immunotherapy" code; the closest clinical concept is vaccination, but prophylactic immunotherapy also encompasses passive immunisation and other immunological agents, so no single code is an adequate match. |
| 24468001 (Prophylactic treatment of humerus with methyl methacrylate) | is related to | MEB.DN.AA (Implantation of device into bone of humerus) | "Implantation of device" via open approach is the closest action available for introducing a substance/material into bone, but methyl methacrylate is injected as a filler/cement for prophylactic stabilisation rather than a discrete device implant. |
| 79285000 (Prophylactic treatment of radius with methyl methacrylate) | is related to | MFB.DN.AA (Implantation of device into bone of forearm) | ICHI groups radius and ulna together as "bone of forearm" (MFB), so this code is broader than the radius-specific SNOMED concept; additionally, the DN action is an approximate fit for cement injection rather than a precise match. |
| 5342002 (Prophylactic treatment of tibia with methyl methacrylate) | is related to | MNB.DN.AA (Implantation of device into tibia or fibula) | ICHI groups tibia and fibula together in MNB, making the target broader than the tibia-specific SNOMED concept; the "implantation of device" action is an approximate fit for cement injection rather than an exact match. |
| 19925008 (Prophylactic treatment of ulna with methyl methacrylate) | is related to | MFB.DN.AA (Implantation of device into bone of forearm) | ICHI groups radius and ulna under the single "bone of forearm" target, broader than the ulna-specific SNOMED concept; the DN action is also only an approximate fit for methyl methacrylate cement injection. |
| 425809005 (Prosthetic replacement of intervertebral disc) | is related to | MBV.MK.AA (Repair of intervertebral disc, not elsewhere classified) | ICHI has site-specific disc prosthesis implantation codes but no unspecified-site prosthetic disc replacement code; MBV.MK.AA is the closest unspecified-site disc intervention, but it denotes "repair" rather than prosthetic replacement. |
| 450777003 (Prosthetic replacement of intraarticular ligament) | is related to | MML.ML.AA (Reconstruction of ligaments of knee) | ICHI has no generic code for prosthetic replacement of an intraarticular ligament across all joints; MML.ML.AA is the closest representative code since the knee is the most common site for intraarticular ligament prosthetic replacement (e.g. ACL/PCL), but is site-specific. |
| 450776007 (Prosthetic replacement of ligament) | is related to | MML.ML.AA (Reconstruction of ligaments of knee) | ICHI has no general "prosthetic replacement of ligament" code and no body-site-agnostic ligament reconstruction code; MML.ML.AA covers ligament reconstruction at the knee only, the most commonly performed ligament prosthetic replacement. |
| 423564006 (Provider instructions for treatment) | is related to | PZB.TB.ZZ (Individualised planning) | No ICHI code for "provider instructions for treatment" exists; "Individualised planning" captures the closest related concept of formulating and communicating a personalised management plan. ICHI does not represent the instructional/directive act as a discrete code. |
| 710924006 (Provision of adequate water supply) | is related to | UBN.TK.ZZ (Public facilities or infrastructure development for improved water supply) | UBN.TK.ZZ specifically addresses public infrastructure development to improve water supply, which overlaps with the SNOMED concept but frames it as a public-works intervention rather than the general act of ensuring water adequacy. |
| 1254716000 (Provision of aid for disability) | is related to | UEN.RG.ZZ (Providing social security services, systems and policies) | Disability aid (financial assistance, entitlements, support) is classified under social security services in ICHI's framework; however, the SNOMED concept could also encompass assistive devices or personal care, so no single ICHI code captures it precisely. |
| 243744006 (Provision of corneal contact lens) | is related to | BBB.DK.AH (Application of bandage contact lens to cornea) | The only contact-lens code in ICHI describes application of a therapeutic bandage contact lens, whereas the SNOMED concept covers the broader act of providing/supplying a corrective corneal contact lens. The two share the corneal contact-lens domain but differ in purpose. |
| 243743000 (Provision of corneoscleral contact lens) | is related to | BBB.DK.AH (Application of bandage contact lens to cornea) | ICHI has no code for corneoscleral lenses; the only contact-lens code refers to a bandage lens applied to the cornea, whereas a corneoscleral lens spans both cornea and sclera and is typically a rigid gas-permeable device. |
| 82033004 (Provision of diagnostic radioisotope) | is related to | UAC.RD.ZZ (Providing medications) | A diagnostic radioisotope (radiopharmaceutical) is classified under medicaments in ICHI, and UAC.RD.ZZ covers the provision of such agents; however, ICHI does not distinguish radiopharmaceuticals from other medications, and the diagnostic purpose is not encoded. |
| 243749001 (Provision of guide help for visual and hearing impairment) | is related to | UAD.RB.ZZ (Practical support with products and technology for personal use in daily living) | No ICHI code specifically covers human guide assistance for combined visual and hearing impairment; the closest functional match is practical support with personal use products/technology, but this targets assistive devices rather than human guiding assistance. |
| 710918000 (Provision of safety device) | is related to | VC1.RD.ZZ (Providing goods to support improved safety-related behaviours, unspecified) | "Provision of safety device" is the act of physically supplying a safety device to an individual, which maps most closely to the ICHI action of providing goods targeting safety-related behaviours. The ICHI code is unspecified as to type of safety context and frames it as a behavioural intervention rather than a device supply act, making this a related but inexact match. |
| 243742005 (Provision of scleral contact lens) | is related to | BBB.DK.AH (Application of bandage contact lens to cornea) | ICHI only codes the application of a bandage contact lens to the cornea, which is a therapeutic corneal device; a scleral contact lens is a larger rigid lens that vaults over the cornea and rests on the sclera, and no ICHI code exists for fitting or providing scleral lenses specifically. The two concepts involve different devices with different anatomical coverage, making this a related-but-not-equivalent match. |
| 699823003 (Provision of written information) | is related to | VFS.PM.ZZ (Education about improving health literacy) | ICHI has no specific code for provision of written information materials to a patient. VFS.PM.ZZ (education about improving health literacy) is the closest conceptual match — both involve conveying health-related knowledge — but the ICHI code implies structured education rather than simply handing over written materials, making this a related but not equivalent concept. |
| 424352007 (Public health case investigation) | is related to | PZB.VC.ZZ (Infectious disease contact tracing) | ICHI's closest assignable code for individual-level public health investigation is "Infectious disease contact tracing" (PZB.VC.ZZ), which shares the field epidemiology intent; however, "public health case investigation" in SNOMED is broader — it can apply to non-infectious cases and is about investigating the case itself, not only tracing contacts — making this a related but not equivalent match. |
| 424691005 (Public health investigation of communicable disease outbreak) | is related to | UBC.VC.ZZ (Population public health surveillance) | Outbreak investigation is population-level epidemiological activity directed at communicable disease events; ICHI's "Population public health surveillance" (UBC.VC.ZZ) is the nearest assignable code covering systematic population-level monitoring and investigation of health events, but it is broader (covering all surveillance, not specifically outbreak investigation) and does not specify communicable disease, making this a related rather than equivalent match. |
| 1366543008 (Pulsed radiofrequency to sympathetic nerve) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | ICHI codes for the sympathetic nervous system are limited to injection of anaesthetic and excision/sympathectomy procedures by region (cervical, thoracic, lumbar, sacral); there is no sympathetic nerve destruction or percutaneous neuromodulation code. The only unspecified sympathetic intervention code (ADA.ZZ.ZZ) is the closest available match, but it is a residual placeholder rather than a meaningful procedural equivalent, making this a related-to rather than a wider match. |
| 242051000 (Puncture of vessel) | is related to | DIA.AH.XA (Specimen collection of blood) | ICHI has no generic "puncture of vessel" code; the closest commonly-performed act is DIA.AH.XA (specimen collection of blood via venipuncture), but this is only one specific application of vessel puncture. The SNOMED concept is substantially broader, encompassing arterial, venous, and other vessel puncture for any purpose. |
| 443686007 (Quantitative PCR analysis) | is related to | XG4U02 (Viral nucleic acid amplification test) | ICHI has quantitative nucleic acid codes only for specific pathogens (HIV, HCV, HBV) and a general viral nucleic acid amplification test (XG4U02), but no pathogen-agnostic quantitative PCR code; XG4U02 is related in method but is limited to viral targets and does not capture the full scope of quantitative PCR analysis. |
| 171244006 (Radiation exposure screening) | is related to | UBR.AA.ZZ (Assessment of the impact of radiation) | ICHI has no dedicated "radiation exposure screening" code; "Assessment of the impact of radiation" (UBR.AA.ZZ) sits within the public-health "Interventions on radiation" block and captures the assessment intent, but its framing is population/environmental rather than individual clinical screening. |
| 420529003 (Radiation plaque therapy) | is related to | BCA.GA.BA (Destruction of lesion or tissue of posterior structures of eyeball by radiotherapy) | ICHI has no code for episcleral/ophthalmic plaque brachytherapy as a distinct technique; BCA.GA.BA is the closest anatomical match (posterior eyeball radiotherapy) but it does not specify the plaque/brachytherapy means and would only cover ocular plaque use. Radiation plaque therapy may also be applied to non-ocular targets. |
| 17876001 (Radiation therapy treatment planning, interpretation of special testing ordered by radiation therapist) | is related to | UBR.TB.ZZ (Planning in relation to radiation) | ICHI contains no clinical radiation oncology treatment-planning code; UBR.TB.ZZ is a public-health "planning in relation to radiation" code which is conceptually adjacent but operates at a population/environmental level rather than the individual patient dosimetry and test-interpretation context of this SNOMED concept. |
| 17962001 (Radical resection of tumor of soft tissue of neck) | is related to | DFB.JL.AA (Radical neck dissection) | ICHI's DFB.JL.AA (Radical neck dissection) is the closest available code, but it targets lymph nodes of the neck under the lymphatic system block, rather than soft tissue as the primary target. The SNOMED concept specifies radical resection of a soft tissue tumor, which is a distinct surgical intent; there is no ICHI code specifically for radical excision of soft tissue tumor of the neck. |
| 231400000 (Radiofrequency destruction of trigger point) | is related to | ACA.GA.AE (Percutaneous destruction of peripheral nerve) | ICHI does not have a specific trigger point or myofascial destruction code; radiofrequency trigger point ablation targets a focal point in muscle/soft tissue (not a nerve proper), so ACA.GA.AE is only conceptually related and not a true anatomical match. No better candidate exists in the musculoskeletal or soft tissue sections. |
| 55550006 (Radioisotope study of central nervous system) | is related to | AAA.BA.BF (Single photon emission computerised tomography of brain) | ICHI has no single code for nuclear imaging of the entire central nervous system; the closest options are organ-specific codes for brain (AAA.BA.BF SPECT) and spinal cord (ABA.BA.BF SPECT) separately. AAA.BA.BF is selected as the most clinically common form of CNS radioisotope study, but it covers only the brain and a specific modality. |
| 7562007 (Radioisotope study of endocrine system) | is related to | EBA.BA.BE (Thyroid scan or radioisotope function studies) | ICHI does not have a single code spanning the entire endocrine system; radioisotope imaging is coded per organ (thyroid, parathyroid, adrenal). EBA.BA.BE is selected as the most frequently performed endocrine radioisotope study and is the only code that explicitly uses the term "radioisotope function studies," but it is restricted to the thyroid gland. |
| 76927004 (Radioisotope study of genitourinary system) | is related to | NAA.BA.BE (Nuclear imaging study of the kidney) | ICHI has no single code for nuclear imaging of the genitourinary system as a whole; NAA.BA.BE ("Nuclear imaging study of the kidney") is the closest match and aligns with the most clinically common genitourinary radioisotope study (renal scintigraphy/renogram), but it covers only the kidney and excludes the bladder, ureters, and genital organs. |
| 1287922002 (Radionuclide imaging of biliary tract using radioactive isotope) | is related to | KCF.BA.BE (Nuclear study of gallbladder) | KCF.BA.BE is the only nuclear/radioisotope imaging code in the hepatobiliary hierarchy, but it is scoped to the gallbladder alone, whereas the SNOMED concept covers the full biliary tract (including bile ducts); no ICHI code for nuclear imaging of the bile duct exists, making this a related but not equivalent match. |
| 764089009 (Radionuclide imaging of radioisotope labeled platelets) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | ICHI has no specific code for radiolabelled platelet scintigraphy (e.g. In-111 platelet scan), and platelets as a circulating blood element do not map to a single anatomical target block. PZA.BA.BE (radioisotope scan of whole body) is the closest structural match since labelled platelet studies image the whole body to detect sites of platelet sequestration or thrombus, but the correspondence is approximate. |
| 764675000 (Radionuclide imaging using samarium (153-Sm) lexidronam) | is related to | MRB.BA.BE (Nuclear imaging study of bone of unspecified site) | Samarium-153 lexidronam is a bone-targeting radiopharmaceutical primarily used therapeutically for palliative treatment of painful bone metastases rather than diagnostic imaging; the SNOMED classification of this as "radionuclide imaging" is clinically atypical. Taking the SNOMED display at face value and noting the phosphonate-based bone uptake of the agent, the closest ICHI code is nuclear imaging of bone, but the relationship is indirect given the predominantly therapeutic use of this agent. |
| 303908008 (Radionuclide study of endocrine function) | is related to | EBA.BA.BE (Thyroid scan or radioisotope function studies) | ICHI has no single nuclear imaging code covering the entire endocrine system; organ-specific codes exist for thyroid (EBA.BA.BE), parathyroid (EBB.BA.BE), and adrenal gland (EBC.BA.BE). EBA.BA.BE is selected as the most representative nuclear endocrine function study in ICHI, but it is organ-specific (thyroid) rather than covering endocrine function broadly, making this a related rather than equivalent match. |
| 303907003 (Radionuclide study of genitourinary function) | is related to | NAA.BA.BE (Nuclear imaging study of the kidney) | ICHI has no code for nuclear imaging of the genitourinary system as a whole or for genitourinary function; the only genitourinary nuclear imaging code available is NAA.BA.BE which is limited to the kidney. This covers the most common genitourinary radionuclide study (renal scintigraphy/renography) but is narrower in anatomical scope and does not capture the functional orientation of the SNOMED concept. |
| 241290006 (Radionuclide study of neural receptors) | is related to | AAA.BA.BF (Single photon emission computerised tomography of brain) | Radionuclide receptor studies of the brain (e.g., dopamine receptor imaging) are most commonly performed using SPECT with a radiolabelled tracer targeted at neural receptors, making AAA.BA.BF the closest available ICHI code. However, the SNOMED concept is defined by the functional target (neural receptors) rather than the anatomical target (brain) and is not restricted to SPECT, so the match is related but not equivalent. |
| 303878008 (Radionuclide study of thorax) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | ICHI has no radioisotope scan code specifically scoped to the thorax — the thorax imaging block (PAE) only includes X-ray, CT, MRI, and ultrasound. The whole-body radioisotope scan (PZA.BA.BE) is the nearest structural equivalent within the nuclear medicine coding space, but it is considerably broader than a thorax-restricted study. |
| 71977002 (Radionuclide uptake study) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | ICHI has no dedicated code for a generic radionuclide uptake study; the only body-system-agnostic radioisotope imaging code is PZA.BA.BE (whole-body radioisotope scan). Uptake studies measure functional tracer accumulation rather than anatomical scanning, so this is a related but not equivalent match — the SNOMED concept is functionally distinct and organ-unspecified. |
| 417945007 (Radionuclide white blood cell imaging study) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | ICHI contains no code for labelled leukocyte (white blood cell) scintigraphy, which is used to localise infection or inflammation. PZA.BA.BE is the only organ-nonspecific radioisotope imaging code available and serves as the closest generic nuclear medicine imaging code, but it does not capture the WBC-labelling technique or the infection-detection purpose. |
| 415233007 (Raising awareness of risks) | is related to | VC1.VB.ZZ (Awareness raising to influence safety-related behaviours, unspecified) | ICHI's awareness raising codes are always anchored to a specific topic or target behaviour domain; the SNOMED concept is intentionally generic (any risks), so no single ICHI awareness-raising code is semantically equivalent — VC1.VB.ZZ is selected as the closest available unspecified safety-risk awareness code, but the match is only relational. |
| 281181008 (Rebase of maxillofacial prosthesis) | is related to | KAE.SM.AC (Management of external appliance of tooth) | ICHI has no code for rebasing a maxillofacial prosthesis; the closest available concept is management of an external dental/oral appliance, which shares the notion of servicing a prosthetic device in the oral/maxillofacial region but is anatomically narrower (tooth) and does not capture the rebase procedure specifically. |
| 306805000 (Recommendation to continue with treatment) | is related to | PZB.TB.ZZ (Individualised planning) | "Recommendation to continue with treatment" is a generic, non-specific clinical act not tied to any particular body system, substance, or activity; ICHI has no general "advising about treatment" code, and PZB.TB.ZZ captures a broad clinical decision-making and care coordination act that includes treatment continuation decisions, but the match is loose enough to warrant "relatedto" rather than wider. |
| 48051000087105 (Recommendation to perform genetic test) | is related to | PYA.PP.ZZ (Genetic counselling) | ICHI's only code under "Interventions on genome" is PYA.PP.ZZ Genetic counselling, which is related but semantically distinct — recommending a genetic test is a clinical advising act whereas genetic counselling is a broader psychosocial support intervention; no ICHI code for ordering or performing a genetic test itself exists, making this a related-to match at best. |
| 427272008 (Recommendation to physician) | is related to | UEP.TI.ZZ (Referral to health provider) | A recommendation directed to a physician is conceptually closest to a referral — the act of directing a patient or clinical request toward another health provider — but "recommendation to physician" is less specific and may not involve formal referral, making this a related rather than equivalent match. |
| 223448003 (Recommendation to read information) | is related to | SCF.PN.ZZ (Advising about reading) | SCF.PN.ZZ captures the act of advising a person about the activity of reading, which is semantically close to recommending that someone read information; however, ICHI frames this within a rehabilitation/activity context (reading as a functional activity) rather than as informational health guidance, making it a related rather than equivalent match. |
| 48061000087108 (Recommendation to repeat colonoscopy) | is related to | VDB.PN.ZZ (Advising about screening behaviours) | VDB.PN.ZZ covers advising a person about uptake of health screening services, which broadly encompasses recommending repeat colonoscopy as a surveillance/screening behaviour; however, it is population-health oriented and does not specifically encode repeat endoscopic surveillance, making this a related rather than equivalent match. |
| 438835004 (Reconstruction of lateral collateral ligament of elbow using tendon graft) | is related to | MEL.LB.AA (Reattachment of ligament or fascia of elbow) | ICHI has no reconstruction code for elbow ligament or fascia — the MEL block only contains division, release, excision, and reattachment codes; reattachment is the closest action available but does not capture the graft-based reconstruction semantics, nor does it distinguish the lateral collateral ligament specifically. |
| 439632006 (Reconstruction of medial collateral ligament of elbow using tendon graft) | is related to | MEL.LB.AA (Reattachment of ligament or fascia of elbow) | As with the lateral collateral counterpart, ICHI lacks a reconstruction-with-graft code for elbow ligament; MEL.LB.AA (reattachment) is the nearest available code but does not encode grafting or medial-vs-lateral specificity. |
| 1260025008 (Reconstruction of pressure injury stage II) | is related to | LAB.ML.AA (Skin graft to trunk) | ICHI has no dedicated code for pressure injury (decubitus ulcer) reconstruction; the closest approach codes cover skin grafts by body region or general trunk repair, but stage II pressure injury reconstruction (involving partial-thickness tissue loss) does not map cleanly to any single ICHI category. LAB.ML.AA (skin graft to trunk) is related but reflects only one possible approach to one common body region. |
| 1260026009 (Reconstruction of pressure injury stage III) | is related to | LAB.ML.AA (Skin graft to trunk) | As with stage II, ICHI contains no specific code for pressure injury reconstruction by stage; stage III involves full-thickness tissue loss through subcutaneous fat, and reconstruction commonly involves skin grafting often to the trunk, but LAB.ML.AA only partially captures this and does not encode stage or injury type. |
| 1260027000 (Reconstruction of pressure injury stage IV) | is related to | LAB.ML.AA (Skin graft to trunk) | ICHI has no code for pressure injury reconstruction by stage; stage IV involves full-thickness tissue loss exposing bone, tendon, or muscle, which may require complex flap or graft reconstruction, but the best available ICHI code (LAB.ML.AA) only covers skin grafting to the trunk region without capturing the severity, depth, or complexity specific to stage IV. |
| 714154006 (Reduction clitoroplasty of ambiguous genitalia) | is related to | NMI.JN.AA (Amputation of clitoris) | NMI.JN.AA is the only clitoris-specific procedural code in ICHI; however, reduction clitoroplasty is a tissue-reducing reshaping procedure, semantically distinct from amputation (complete removal), so the match is related but not equivalent. |
| 239530007 (Reduction of dislocated arthroplasty) | is related to | MRJ.LD.AH (Closed reduction of joint of unspecified site) | ICHI has no code specifically for reduction of a dislocated joint prosthesis/arthroplasty; MRJ.LD.AH is the closest available code as a closed reduction of an unspecified joint, but it does not capture the arthroplasty (prosthetic joint) context. |
| 22709009 (Reduction of fracture of larynx) | is related to | JAN.MK.AA (Repair of larynx) | ICHI contains no specific "reduction of laryngeal fracture" code; the larynx block (JAN) covers a wide range of interventions but not fracture reduction specifically. JAN.MK.AA (Repair of larynx) is the closest related concept because reduction and stabilisation of a laryngeal fracture is fundamentally a repair procedure. |
| 122473007 (Reduction of open hyoid fracture) | is related to | MAB.LD.AA (Open reduction of facial bone, not elsewhere classified) | ICHI has no dedicated hyoid fracture reduction code — the hyoid block (BlockL5-MAH) contains only partial excision and hyoid suspension. MAB.LD.AA covers open reduction of facial bone NEC and sits in the same head/neck musculoskeletal block, but the hyoid is not a facial bone and the match is only approximate. |
| 174141005 (Reduction of prolapse of colostomy) | is related to | KBP.LD.AA (Intra-abdominal manipulation of colon) | ICHI contains no code specifically for reduction of colostomy prolapse (unlike the parallel ileostomy code KBK.LD.AH and rectal prolapse code KBW.LC.AH). KBP.LD.AA is the broadest positioning/manipulation code for the colon and provides a related but imprecise mapping; it does not convey the prolapse-specific nature of the intervention. |
| 46918007 (Reduction of prolapse of uterus by suppository) | is related to | NME.LC.AA (Uterine suspension) | ICHI has no code for non-surgical reduction of uterine prolapse by suppository (a pharmacological/mechanical pessary-like approach); uterine suspension (NME.LC.AA) is the closest structural intervention targeting uterine prolapse, but it is a surgical fixation rather than a non-surgical reduction by medication/suppository. |
| 4094001 (Reduction of retroversion of uterus by suppository) | is related to | NME.LD.AC (Manual repositioning of inverted uterus) | ICHI has no code for pharmacological repositioning of a retroverted uterus by suppository; manual repositioning of inverted uterus (NME.LD.AC) is the closest concept as both involve non-surgical repositioning of a malpositioned uterus, but retroversion differs anatomically from inversion and the means (suppository vs. manual) differ. |
| 238180002 (Reduction of silo over congenital umbilical defect) | is related to | PAO.MK.AH (Manual reduction of umbilical hernia) | ICHI has no specific code for staged silo reduction of a congenital umbilical/abdominal wall defect (omphalocele/gastroschisis); manual reduction of umbilical hernia (PAO.MK.AH) is the closest available concept at the umbilical abdominal wall site, but the SNOMED concept describes a staged neonatal silo procedure for a congenital defect, which is clinically distinct. |
| 387820003 (Reduction of spinal deformity) | is related to | MBZ.LD.AA (Open reduction of vertebra, not elsewhere classified) | ICHI does not have a dedicated "correction/reduction of spinal deformity" code; open reduction of vertebra NEC (MBZ.LD.AA) is the closest at the vertebral column level for a non-site-specific spinal reduction procedure, though it implies a fracture context and is broader than a deformity-correction procedure. |
| 178805003 (Reduction of spondylolisthesis and fusion) | is related to | MBM.LD.AA (Open reduction of lumbar spine) | Spondylolisthesis most commonly occurs at the lumbar spine, and the procedure combines reduction with fusion; ICHI does not have a single combined reduction-and-fusion code, so open reduction of lumbar spine (MBM.LD.AA) captures the reduction component, but the fusion component (MBM.LE.AA) would need to be coded separately. |
| 450575009 (Registration of visual impairment) | is related to | BTB.AA.ZZ (Assessment of seeing functions) | ICHI has no concept of administrative registration or certification of a disability; the closest clinical act is a formal assessment of seeing functions (BTB.AA.ZZ), which would typically underpin such a registration. However, the administrative/legal act of registering a visual impairment is conceptually distinct from a clinical assessment, making this a related-to rather than an equivalent or inexact match. |
| 405782001 (Relapse prevention) | is related to | VA1.PP.ZZ (Counselling about substance-related and addictive behaviours, unspecified) | Relapse prevention is a specific psychotherapeutic technique used primarily in the context of substance-related and addictive behaviours, but ICHI encodes interventions by action type (counselling, psychotherapy, training) rather than by named technique; there is no dedicated relapse-prevention code, and the concept spans multiple ICHI action codes (PH/PP/PQ) and potentially multiple behaviour targets. |
| 64299003 (Relaxation training therapy) | is related to | ATI.PH.ZZ (Training of energy and drive functions) | Relaxation training is a technique targeting arousal/tension regulation, most closely aligned with energy and drive functions (ATI) in the ICHI mental functions axis, but ICHI does not have a dedicated relaxation-training code; SDJ.PH.ZZ (Training in handling stress and other psychological demands) is also a plausible candidate, reflecting that the concept maps inexactly across the ICHI structure. |
| 386407001 (Religious addiction prevention) | is related to | VA1.PM.ZZ (Education to influence substance-related and addictive behaviours, unspecified) | ICHI has no concept for religious addiction or its prevention; the closest available codes are general interventions on unspecified substance-related and addictive behaviours (VA1 block), but none encodes the religious dimension or the specific prevention focus, making this a related but non-equivalent mapping. |
| 15537006 (Removal by grinding) | is related to | KAE.JG.AC (Dental scaling, polishing, and debridement) | "Removal by grinding" in clinical context most commonly refers to dental procedures such as enameloplasty or occlusal adjustment where tooth substance is removed by grinding; KAE.JG.AC (dental scaling, polishing, and debridement) is the closest ICHI code involving mechanical removal from teeth, but it is not semantically equivalent as scaling/debridement differs procedurally from enamel grinding, and ICHI has no specific odontoplasty or enameloplasty code. |
| 225208007 (Removal from an abuse risk situation) | is related to | VBB.TM.ZZ (Environment modification to influence family and partner violence behaviours) | ICHI has no code for removing a person from an abuse risk situation as a distinct protective action. VBB.TM.ZZ captures the closest conceptual domain — environmental modification targeting family and partner violence — but the ICHI action (modifying the environment) is not semantically equivalent to physically removing someone from a risk situation, making this a related but non-equivalent match. |
| 233235008 (Removal of band from systemic to pulmonary artery shunt) | is related to | HID.FC.AA (Debanding of pulmonary artery) | HID.FC.AA describes debanding of the pulmonary artery trunk itself, while the SNOMED concept involves removing a band from an artificial systemic-to-pulmonary shunt (a conduit, not the native artery). No ICHI code exists for debanding a shunt, so this is the closest related code involving removal of a band from the pulmonary circulation. |
| 110471002 (Removal of blood clot from shunt) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | ICHI has no dedicated code for thrombectomy or clot removal from a shunt of any type; IZA.SN.AF (Management of arteriovenous shunt) is the closest available code but is limited to AV shunts only and covers management broadly, not specifically blood clot removal, making this only a related match. |
| 173597007 (Removal of bypass of esophagus) | is related to | KBA.ML.AA (Reconstruction of oesophagus) | ICHI has no dedicated code for reversal or takedown of an oesophageal bypass; reconstruction of the oesophagus is the closest conceptual match, as dismantling a bypass and restoring normal continuity involves reconstructive work, but the intent and direction of the procedure differ meaningfully from a straightforward reconstruction. |
| 300593004 (Removal of calculus from liver) | is related to | KCA.JD.AA (Removal of internal device or foreign body from liver) | ICHI has no dedicated calculus extraction code for the liver (unlike gallbladder KCF.JE.AA or bile duct KCM.JE.AA), so removal of internal device or foreign body from liver is the closest available category; a hepatic calculus is not strictly a foreign body or device, making this a related but imprecise mapping. |
| 3580004 (Removal of calculus of pharynx) | is related to | KAR.JD.AC (Removal of internal device or foreign body from oropharynx without incision) | ICHI contains no calculus-specific code for the pharynx; pharyngeal calculi (e.g., tonsilloliths, pharyngoliths) are functionally analogous to foreign bodies and the closest available code is removal of foreign body from the oropharynx, but the semantic match is only approximate and anatomical specificity may differ. |
| 21656000 (Removal of calculus of prostate) | is related to | NGA.JD.AA (Removal of internal device or foreign body from prostate) | ICHI has no dedicated calculus extraction code for the prostate; prostatic calculi are not classified under a calculus action within the prostate block, so the closest available code treats a calculus analogously to a foreign body, representing a related but semantically imprecise match. |
| 446624000 (Removal of cardiac monitoring implant using fluoroscopic guidance) | is related to | HFC.JD.AA (Removal of pacemaker or defibrillator system) | ICHI does not have a dedicated code for cardiac monitoring implant (e.g., implantable loop recorder) removal — HFC.JD.AA is the closest available code for removal of a cardiac conduction system implant, but it specifically targets pacemaker/defibrillator systems rather than monitoring devices, and does not capture the fluoroscopic guidance. |
| 239707003 (Removal of cast brace) | is related to | PZX.LC.AH (Application of cast or splint, not elsewhere classified) | ICHI has no dedicated code for removal of a cast or brace; PZX.LC.AH covers application of cast or splint and is the closest code in the same clinical domain, but it describes the opposite action (application, not removal), making it only relationally equivalent. |
| 265429001 (Removal of colorectal septum) | is related to | KBW.FB.AA (Division of rectovaginal septum) | No ICHI code exists for excision or removal of a colorectal septum specifically; the closest available code describes division of the rectovaginal septum, which is a structurally adjacent but anatomically distinct entity and represents a different procedural action (division vs. excision/removal). |
| 239708008 (Removal of constricting band from limb) | is related to | LZZ.FC.AA (Release of scar or web contracture of skin, not elsewhere classified) | ICHI has no specific code for removing an external constricting band (e.g., a tourniquet or amniotic band) from a limb; the closest concept is release of a scar or web contracture of the skin (LZZ.FC.AA), which addresses soft-tissue constriction relief, but it implies a different mechanism (scar tissue vs. a physical band). |
| 21301008 (Removal of dye from spinal canal) | is related to | ABG.JD.AA (Removal of internal device or foreign body from spinal canal) | Injected contrast dye in the spinal canal is neither a device nor a true foreign body in the surgical sense, so this code captures the anatomical target and removal action but the substance category does not align precisely. No dedicated ICHI code exists for removal of an intrathecal contrast agent. |
| 385904005 (Removal of ear wax) | is related to | CAE.JA.AC (Irrigation of external auditory canal) | Ear wax (cerumen) removal is most commonly performed by irrigation/syringing of the external auditory canal, making this the closest ICHI code; however, cerumen removal can also be done by instrumentation or suction, and ICHI has no dedicated ceruminectomy code, so the match is method-specific rather than concept-level. |
| 427175002 (Removal of electrocardiography loop recorder) | is related to | HFC.JD.AA (Removal of pacemaker or defibrillator system) | An implantable loop recorder is a subcutaneous cardiac rhythm monitoring device, not a pacemaker or defibrillator, so there is a meaningful semantic mismatch in device type; ICHI does not have a dedicated code for ILR removal, making this the closest available code within the conducting system of heart interventions block. |
| 230831006 (Removal of external subdural drain) | is related to | AAG.JB.AA (Drainage of intracranial space) | ICHI has no specific code for subdural drain removal; the subdural space sits within the intracranial space, and AAG.JB.AA is the closest structural match, but it describes drainage rather than device removal, making it a related rather than equivalent concept. |
| 444601005 (Removal of extracranial ventricular shunt) | is related to | AAE.JD.AA (Removal of internal device or foreign body from ventricles of brain) | The SNOMED concept specifically concerns removal of the extracranial (distal/peritoneal) component of a ventricular shunt, while AAE.JD.AA codes removal of a device from the ventricular (intracranial) end; these are complementary parts of the same shunt system but different anatomical targets, so the match is relatedto rather than equivalent or wider. |
| 1339004 (Removal of impacted feces) | is related to | KBW.JD.AA (Removal of internal device or foreign body from rectum) | ICHI does not have a dedicated code for fecal disimpaction; the closest structural match is removal of a foreign body or device from the rectum (where impacted feces most commonly presents and is manually removed), but the ICHI code is framed around devices/foreign bodies rather than impacted stool, making this a related but inexact mapping. |
| 312712008 (Removal of internal limiting membrane) | is related to | BCC.JJ.AA (Partial excision of retina) | The internal limiting membrane (ILM) is the innermost layer of the retina, and its peeling/removal is a distinct microsurgical step performed during vitreoretinal surgery; ICHI has no dedicated code for ILM peeling, and while BCC.JJ.AA (partial excision of retina) is the closest anatomical category, it does not precisely capture a membrane peel. The match is related but not equivalent. |
| 427979009 (Removal of internal tamponade agent from vitreous body) | is related to | BCD.JB.AA (Drainage of vitreous) | ICHI has no dedicated code for removal of a tamponade agent (e.g., silicone oil or gas) from the vitreous cavity; BCD.JB.AA (drainage of vitreous) is the closest available code as it involves removing fluid/substance from the vitreous body, but it does not specifically capture tamponade agent removal and the action axis (drainage) is only an approximate fit. |
| 180320008 (Removal of mallet splint) | is related to | MGJ.LC.AH (Application of external immobilisation device to finger or hand joint) | ICHI does not have a dedicated code for removing a mallet splint (a fingertip extension splint used for mallet finger). MGJ.LC.AH covers application of external immobilisation to a finger/hand joint, which is the inverse procedure; no removal-of-external-immobilisation-device code exists for this specific site, making this a related but non-equivalent association. |
| 174994000 (Removal of obstruction from structure adjacent to valve of heart) | is related to | HDE.JI.AA (Local excision of subaortic fibromuscular shelf) | The SNOMED concept describes removing an obstruction from any structure adjacent to any heart valve, whereas ICHI only encodes specific instances — subaortic fibromuscular shelf excision (HDE.JI.AA) or supravalvar mitral ring excision (HDF.JJ.AA). HDE.JI.AA is the most representative single code, but the SNOMED concept is broader and the ICHI code is too specific for a true equivalence or wider/narrower relationship. |
| 233102005 (Removal of patch from ventricular septum) | is related to | HZZ.JD.AE (Percutaneous removal of internal device or foreign body from heart, not elsewhere classified) | ICHI has no specific code for removal of a ventricular septal patch; the ventricular septum block only contains codes for inserting or repairing with a patch/device, not removing one. HZZ.JD.AE covers percutaneous removal of a device/foreign body from the heart NEC and is the closest available code, though it does not reflect the open surgical approach or the specific septal target. |
| 175334000 (Removal of prosthesis from aorta) | is related to | HZZ.JD.AF (Percutaneous transluminal removal of internal device or foreign body from heart, not elsewhere classified) | No ICHI code exists specifically for device removal from the aorta; none of the five aortic segment blocks contain a JD action code. HZZ.JD.AF covers the great vessel category but specifies a percutaneous transluminal approach and is scoped to "heart, NEC", making it only relationally associated rather than equivalent. |
| 239378006 (Removal of sequestra from maxillary tooth socket) | is related to | MAF.JD.AA (Removal of internal device or foreign body from maxillary bone) | A sequestrum (fragment of necrotic bone) is functionally treated as a foreign body in ICHI coding, and the target anatomy aligns with the maxillary tooth socket region. However, ICHI does not distinguish sequestra from other foreign bodies or devices, making this a related rather than equivalent match. |
| 625000 (Removal of supernumerary digit) | is related to | MRS.LA.AH (Ligation of supernumerary digit) | MRS.LA.AH is the only ICHI code that specifically addresses the supernumerary digit, but it captures ligation (a common technique for neonatal polydactyly) rather than surgical excision/removal more broadly; these are related but not equivalent procedures. |
| 232830004 (Removal of thrombus from aortic valve) | is related to | HDE.MK.AA (Repair of aortic valve) | ICHI has no specific thrombectomy code for the aortic valve; the aortic valve block contains no thrombectomy or thrombus removal procedure, and the closest intervention on the aortic valve is HDE.MK.AA (repair of aortic valve), which is related but represents a broader surgical repair. |
| 232908004 (Removal of thrombus from atrioventricular valve) | is related to | HAZ.JE.AA (Thrombectomy from atrium) | ICHI has no thrombectomy code for any cardiac valve; the only cardiac thrombectomy codes target the atrium rather than a valve. HAZ.JE.AA represents the closest structurally related procedure in the same cardiac neighbourhood, but the target (atrium vs. atrioventricular valve) does not match. |
| 232831000 (Removal of thrombus from implanted aortic valve) | is related to | HAZ.JE.AA (Thrombectomy from atrium) | No ICHI code exists for thrombectomy from any cardiac valve, native or prosthetic; the aortic valve block (BlockL5-HDE) contains only replacement, repair, dilatation, and reconstruction codes. HAZ.JE.AA is the nearest cardiac thrombectomy code but targets the atrium, not the aortic valve. |
| 232909007 (Removal of thrombus from implanted atrioventricular valve) | is related to | HAZ.JE.AA (Thrombectomy from atrium) | ICHI contains no code for thrombectomy of an implanted (prosthetic) atrioventricular valve; the only ICHI cardiac thrombectomy codes address the atrium. HAZ.JE.AA is structurally adjacent but differs in both the target anatomy (atrium vs. AV valve) and the prosthetic context. |
| 232764009 (Removal of thrombus from implanted mitral valve) | is related to | HAZ.JE.AA (Thrombectomy from atrium) | The mitral valve block (BlockL5-HDF) offers only repair, reconstruction, replacement, and dilatation codes — no thrombectomy. HAZ.JE.AA is the only open-surgery cardiac thrombectomy code in ICHI but refers to the atrium, not the mitral valve or a prosthesis within it. |
| 232864000 (Removal of thrombus from implanted pulmonary valve) | is related to | HAZ.JE.AA (Thrombectomy from atrium) | The pulmonary valve block (BlockL5-HDG) contains no thrombectomy codes, and ICHI has no category representing thrombectomy from any cardiac valve. HAZ.JE.AA is the closest existing cardiac thrombectomy code but is a poor fit given the different target structure (atrium vs. pulmonary valve) and prosthetic context. |
| 232804003 (Removal of thrombus from implanted tricuspid valve) | is related to | BlockL5-HDH (Interventions on tricuspid valve) | ICHI has no specific thrombectomy code for the tricuspid valve; the closest available codes are the tricuspid valve block or repair codes (HDH.MK.AA), neither of which captures thrombus removal from a prosthetic/implanted valve. Assigning the block acknowledges the anatomical target while recognising the lack of a specific action match. |
| 232940000 (Removal of thrombus from implanted truncal valve) | is related to | BlockL5-HDI (Interventions on truncal valve) | ICHI's truncal valve block contains only four codes (replacement, dilatation, repair, reconstruction) and none covers thrombus removal from a prosthetic truncal valve; the block is the closest available representation of this anatomical target. |
| 232863006 (Removal of thrombus from pulmonary valve) | is related to | BlockL5-HDG (Interventions on pulmonary valve) | No thrombectomy code exists for the pulmonary valve in ICHI; the pulmonary valve block covers the correct anatomical target but does not encode thrombus removal as an action, making this a related but inexact match. |
| 232939002 (Removal of thrombus from truncal valve) | is related to | BlockL5-HDI (Interventions on truncal valve) | Same situation as for the implanted variant — ICHI has no thrombectomy code within the truncal valve block, so only the block-level code representing the correct anatomical target can be assigned. |
| 446101008 (Removal of tick) | is related to | LAA.JD.AH (Removal of internal device or foreign body from skin and subcutaneous cell tissue of head or neck without incision) | ICHI has no specific code for tick (ectoparasite) removal; the closest structural match treats the embedded tick as a foreign body removed from skin without incision, but ticks most commonly attach to the head/neck and the body-site suffix makes this a regional approximation. The code is inexact in body-site specificity and in concept (tick as living organism vs. device/foreign body), making it a related rather than equivalent match. |
| 303238005 (Removal of wart) | is related to | LAB.GA.AH (Destruction of skin and subcutaneous cell tissue of trunk) | ICHI has no wart-specific code; the closest available concept is site-specific destruction of skin (e.g., LAA.GA.AH head/neck, LAB.GA.AH trunk, LAE.GA.AH upper limb, LAG.GA.AH lower limb), which covers the mechanism (destruction by cryotherapy, curettage, cautery) but is both site-specific and broader than a wart-only procedure. No single unspecified-site skin destruction code exists in ICHI, so the mapping is inherently approximate. |
| 178832008 (Removal spinal instrumentation) | is related to | MBM.JD.AA (Removal of internal device or foreign body from lumbar spine) | ICHI has site-specific removal of spinal internal device codes (cervical, thoracic, lumbar, sacral) but no single code covering the entire spinal column; the SNOMED concept is site-unspecified so any one ICHI code is only a partial match — the lumbar code is cited as the most commonly involved level for spinal instrumentation removal, but the true relationship is relatedto given the site mismatch. |
| 183475003 (Renal medicine emergency hospital admission) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not classify hospital admission events or emergency admissions to specialist services; searches for "admission", "inpatient", "emergency admission", and browsing of the health-services block found no code for this administrative/care-pathway concept. UEP.TI.ZZ is the closest available code, capturing the organisational action of directing a patient to a specialist service, but does not capture the emergency or inpatient nature. |
| 19947008 (Repair of aneurysm by coagulation using electrical energy) | is related to | IAA.LA.AA (Occlusion of intracranial artery) | ICHI has no code specifically for electrical coagulation of an aneurysm; the SNOMED concept describes obliteration of an aneurysm via electrical energy, which is functionally an occlusion procedure, but IAA.LA.AA is anatomically restricted to the intracranial artery and does not specify the electrical means. |
| 28242004 (Repair of filtering bleb by corneal graft) | is related to | BBB.KD.AA (Corneal transplant) | A filtering bleb repair with a corneal patch graft uses the corneal graft as the defining surgical material, making BBB.KD.AA the closest available ICHI code, but the target in SNOMED is the conjunctival bleb rather than the cornea itself, so the match is relational rather than equivalent. |
| 274038002 (Repair of hydrocele) | is related to | NGL.MK.AA (Repair of testis) | ICHI has no dedicated hydrocele or tunica vaginalis repair code; hydrocele repair addresses the fluid-filled sac around the testis, making "Repair of testis" the anatomically closest available category, but the target structure and operative intent differ. |
| 25827007 (Repair of macrodactyly) | is related to | MGB.LL.AA (Limb shortening procedures of bone of hand or finger) | Macrodactyly repair typically involves bone shortening/debulking of an enlarged finger, which is captured by MGB.LL.AA, but the SNOMED concept also encompasses soft tissue reduction; there is no dedicated ICHI code for macrodactyly correction and this code only partially covers the procedure. |
| 281172002 (Repair of maxillofacial prosthesis) | is related to | PAB.DP.AH (Installation of assistive product to head or neck) | ICHI has no code for repairing or servicing an external maxillofacial prosthesis; PAB.DP.AH covers installation of an assistive product to the head or neck region, which is the closest applicable ICHI concept but addresses fitting rather than repair of an existing device. |
| 26407007 (Repair of penile prosthesis) | is related to | NGM.KA.AA (Replacement of internal penile prosthesis) | ICHI has no specific code for repair of a penile prosthesis; NGM.KA.AA (replacement of internal penile prosthesis) is chosen as the most clinically related because prosthesis repair often entails component replacement, but the semantic match is imprecise since repair and replacement are distinct procedures. |
| 239698005 (Repair of plaster cast) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | ICHI has no code for repairing an existing cast; PZX.KB.AH (replacement of external immobilisation device NEC) captures modification of an external immobilisation device but implies full replacement rather than repair of the existing one. |
| 35512005 (Repair of resin saddle or base, partial denture) | is related to | KAE.SM.AC (Management of external appliance of tooth) | ICHI has no code specific to partial denture repair; a resin saddle/base is a removable dental prosthesis (external appliance) worn against teeth, so KAE.SM.AC is the closest available code, but it is a broader management category that does not capture the repair/restoration specificity. |
| 59661004 (Repair of urinary stress incontinence) | is related to | NAK.LC.AA (Suspension procedures on bladder neck) | ICHI has no code titled for repair of urinary stress incontinence as a condition; the closest functional match is bladder neck suspension, which is the prototypical surgical correction of stress incontinence, but the ICHI code describes the anatomical procedure target rather than the clinical goal. |
| 185381007 (Repeat medication check) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | ICHI lacks a specific code for a medication review or check consultation; PZX.TI.ZZ is the closest available concept as it covers the prescribing encounter where medications are reviewed and renewed, but a "repeat medication check" is primarily an assessment/review activity rather than a prescribing act. |
| 60270002 (Replace broken teeth, per tooth, partial denture) | is related to | KAE.MK.AC (Restoration of tooth) | ICHI has no code for removable partial dentures specifically; "Restoration of tooth" is the closest category in the teeth interventions block covering prosthetic tooth repair, but it does not capture the concept of a removable partial denture appliance. The SNOMED concept also specifies a per-tooth billing context that has no ICHI equivalent. |
| 426778003 (Replacement of canthal tendon) | is related to | BAA.ML.AA (Reconstruction of eyelid) | ICHI has no specific code for canthal tendon replacement; the canthal tendon is periocular connective tissue anchoring the eyelid, so the closest anatomical grouping is the eyelid block. Reconstruction of eyelid is related but encompasses a broader anatomical scope than the specific tendon structure. |
| 432018009 (Replacement of dialysis catheter using fluoroscopic guidance) | is related to | IZD.DL.AA (Insertion of a device into a vein, not elsewhere classified) | ICHI has no dedicated code for replacement of a dialysis (haemodialysis) catheter. IZD.DL.AA for insertion of a vein device is the closest structural analogue, but it covers only the insertion component, not a full removal-and-replace procedure, and does not capture the fluoroscopic guidance or the dialysis-specific context. |
| 24959006 (Replacement of drain of vulva) | is related to | NMI.JB.AA (Drainage of vulva) | ICHI has no code for replacement of a drain at the vulva; the NMI block (Interventions on vulva) contains NMI.JB.AA for drainage of the vulva, which is the closest functional match, but it represents the drainage procedure itself rather than the specific act of replacing an existing drain. |
| 431827006 (Replacement of drainage tube using fluoroscopic guidance) | is related to | JCB.KA.AA (Replacement of pleural drainage device) | ICHI lacks a body-system-neutral code for replacement of a generic drainage tube with fluoroscopic guidance; JCB.KA.AA is the only drainage device replacement code and is site-specific to the pleural cavity. It is selected as the closest structural analogue, but the SNOMED concept is not site-specified and explicitly includes fluoroscopic guidance which is not captured in ICHI. |
| 428414004 (Replacement of medial canthal tendon using periosteal strip) | is related to | BAA.MK.AA (Repair of eyelid) | ICHI has no code for medial canthal tendon repair specifically; this procedure corrects medial canthal laxity at the eyelid-orbital rim junction using a periosteal strip, and BAA.MK.AA (Repair of eyelid) is the closest anatomically relevant code, though it does not capture the tendon or periosteum aspects of the technique. |
| 439917001 (Replacement of nontunneled centrally inserted central venous catheter) | is related to | IZD.DL.AA (Insertion of a device into a vein, not elsewhere classified) | ICHI has no dedicated code for CVC replacement, and the only tunneled/non-tunneled CVC entries in the classification lack assignable codes; IZD.DL.AA covers insertion of a device into a vein NEC and is the best structural approximation, but it does not capture the removal-and-replacement nature of the procedure or the nontunneled/central distinction. |
| 45351004 (Replacement of prosthesis of lower extremity) | is related to | PNA.DP.AH (Installation of assistive product to lower limb, not elsewhere classified) | ICHI does not have a specific "replacement of lower limb prosthesis" code; the closest assignable code covers installation of an assistive product (which includes prostheses) to the lower limb NEC, but does not capture the replacement (removal + reinstallation) aspect, making this a related but not equivalent match. |
| 32957003 (Replacement of prosthesis of upper extremity) | is related to | PMA.DP.AH (Installation of assistive product to upper limb, not elsewhere classified) | As with the lower limb, ICHI has no dedicated replacement code for an upper limb prosthesis; the closest assignable code is installation of an assistive product to the upper limb NEC, which does not capture the full replacement (removal and refitting) concept. |
| 235565001 (Repositioning of biliary anastomosis prosthesis) | is related to | KCM.KA.AD (Replacement of device in biliary duct) | ICHI contains no specific code for repositioning a biliary anastomosis prosthesis; KCM.KA.AD is the closest related intervention in the bile duct device management family, but "replacement" is semantically distinct from "repositioning". |
| 177121008 (Repositioning of retroverted gravid uterus) | is related to | NME.LD.AC (Manual repositioning of inverted uterus) | NME.LD.AC is the closest available uterus repositioning code, but it refers specifically to an inverted uterus, whereas the SNOMED concept concerns a retroverted (backward-tilted) gravid uterus — a clinically distinct condition. |
| 717793002 (Reproductive counseling) | is related to | NUD.PP.ZZ (Fertility counselling) | NUD.PP.ZZ is the nearest counselling code in the reproductive domain, but it is specifically scoped to fertility rather than the broader concept of reproductive counseling, which encompasses contraception, pregnancy planning, genetic risk, and sexual health. |
| 311803000 (Resettlement assessment) | is related to | SX1.AA.ZZ (Assessment of engaging in community, social and civic life, unspecified) | ICHI has no specific code for resettlement assessment. SX1.AA.ZZ is the closest available concept — covering assessment of a person's engagement in community, social, and civic life — but it does not capture the migration/resettlement context. |
| 386410008 (Resiliency promotion) | is related to | VEL.VB.ZZ (Awareness raising to influence behaviours related to psychological health and wellbeing) | ICHI has no dedicated "resiliency promotion" code; VEL.VB.ZZ is the closest available concept under the psychological health and wellbeing behaviour block and partially overlaps with resiliency promotion, but does not specifically encode the concept of building or strengthening resilience. |
| 225317005 (Restriction of movement) | is related to | UBC.WB.ZZ (Restricting movement of people) | UBC.WB.ZZ is a population-level public health intervention on movement of people, whereas the SNOMED concept refers to a clinical nursing/therapeutic action applied to an individual patient. The concepts are related but differ fundamentally in scope and setting. |
| 421175005 (Restriction of visitors) | is related to | PZB.VE.ZZ (Isolation of a person for infection control) | Restricting visitors is often implemented as part of infection control isolation, but the SNOMED concept encompasses visitor restriction for reasons beyond infection control (patient safety, behavioural management), so the match is related rather than equivalent. |
| 429546007 (Retinal vascular sheathotomy) | is related to | BCC.MK.AA (Repair of retina) | Retinal vascular sheathotomy is an incision of the adventitial sheath of a retinal blood vessel, which is not semantically a "repair" of the retina; ICHI has no sheathotomy code, and BCC.MK.AA is the closest assignable code within the retina interventions block. |
| 312207008 (Reversal of procedure for complex congenital heart disease) | is related to | HZM.ML.AA (Reconstruction of complex congenital heart malformations, not elsewhere classified) | ICHI has no concept of "reversal" of a prior cardiac procedure; HZM.ML.AA is the broadest residual code for complex congenital heart reconstruction and shares the same anatomical domain, but does not convey the meaning of undoing a previously performed palliation or repair. |
| 275830000 (Reverse barrier nursing) | is related to | PZB.VE.ZZ (Isolation of a person for infection control) | PZB.VE.ZZ represents patient isolation for infection control; reverse barrier nursing is specifically protective (source-to-patient) isolation for immunocompromised individuals, whereas PZB.VE.ZZ is framed around preventing outward spread, making these related but not equivalent. |
| 1344764003 (Review of behavior change plan) | is related to | PZB.TB.ZZ (Individualised planning) | PZB.TB.ZZ covers the creation and management of person-specific plans in a health context. The SNOMED concept is specifically a review of an existing behaviour change plan, whereas ICHI's code does not distinguish initial planning from review; no ICHI code specifically targets behaviour-change plan review. |
| 179790000 (Revision allograft augmentation extra-articular ligament) | is related to | MML.ML.AA (Reconstruction of ligaments of knee) | ICHI has no dedicated concept for allograft augmentation of an extra-articular ligament, nor does it distinguish revision from primary procedures or encode the allograft/extra-articular specificity. MML.ML.AA is the closest structural analog but is broader and non-specific. |
| 707280004 (Revision anterior excision of body of cervical vertebra with reconstruction) | is related to | MBA.JK.AA (Total cervical vertebrectomy) | MBA.JK.AA covers total cervical vertebrectomy but does not encode the revision nature, the anterior approach specifically, or the accompanying reconstruction; the companion reconstruction code MBA.ML.AA would be needed as a second code. |
| 707279002 (Revision anterior excision of body of lumbar vertebra with reconstruction) | is related to | MBM.JK.AA (Total lumbar vertebrectomy) | MBM.JK.AA covers total lumbar vertebrectomy but does not encode the revision context, the anterior approach, or the reconstruction component; the full procedure would require at minimum a second ICHI code (MBM.ML.AA). |
| 179888009 (Revision arthroscopic allograft ligament augmentation) | is related to | MML.ML.AB (Arthroscopic reconstruction of ligaments of knee) | MML.ML.AB captures the arthroscopic approach and ligament reconstruction component, but it does not encode the revision nature, the allograft graft source, or the augmentation-only intent. ICHI also does not specify which joint beyond knee. |
| 179766001 (Revision autograft replacement extra-articular ligament) | is related to | MML.ML.AA (Reconstruction of ligaments of knee) | ICHI encodes ligament reconstruction by anatomical site but has no site-unspecified, extra-articular, or autograft-specific ligament reconstruction code; MML.ML.AA is the most structurally similar code (ligament reconstruction) but assumes the knee joint, and neither "autograft" nor "revision" is represented in ICHI. |
| 178590006 (Revision decompression of cervical spine) | is related to | ABG.FC.AA (Release of spinal canal) | ICHI has no cervical-specific spinal decompression code; ABG.FC.AA (Release of spinal canal) is the functional equivalent of neural decompression but is not site-specific to the cervical level and does not capture the revision nature of the procedure, making this a related rather than direct match. |
| 178609006 (Revision decompression of lumbar spine) | is related to | ABG.FC.AA (Release of spinal canal) | As with cervical decompression, ICHI has no lumbar-specific spinal decompression code; ABG.FC.AA (Release of spinal canal) represents the closest functional equivalent but lacks both the lumbar anatomical specificity and the revision qualifier present in the SNOMED concept. |
| 301048006 (Revision fixation of fracture of vertebra with plate) | is related to | MBZ.KA.AA (Replacement of spinal device, not elsewhere classified) | ICHI does not have a code for vertebral fracture fixation with a plate; KA (replacement of device) in the vertebral column captures the revision-of-hardware concept where the plate is the spinal device, but the fracture context and plate specificity are absent. "Not elsewhere classified" makes this the best available approximation. |
| 301044008 (Revision fixation of fracture using screws) | is related to | MRB.DN.AA (Implantation of device into bone of unspecified site) | ICHI has no code for revision internal fixation with screws at an unspecified bone site; DN (implantation of device) into bone of unspecified site captures the screw-as-internal-device concept but represents a primary implantation rather than a revision, and fracture context is missing. |
| 609207006 (Revision gastrectomy) | is related to | KBF.JJ.AA (Partial gastrectomy) | ICHI does not distinguish revision from primary gastrectomy; KBF.JJ.AA (partial gastrectomy) is chosen as the most likely underlying procedure type for a revision gastrectomy, but the revision nature and extent specificity are not encoded, making this a related rather than equivalent mapping. |
| 405449003 (Revision of above knee amputation) | is related to | MLB.JN.AA (Above knee amputation) | ICHI codes the primary above-knee (transfemoral) amputation but has no distinct code for revision or stump revision of this amputation; the SNOMED concept specifically denotes a redo/revision procedure, a clinically distinct intent not represented in the ICHI code. |
| 405444008 (Revision of amputation of foot) | is related to | MOB.JN.AA (Amputation of bone of foot or toe) | ICHI provides only a primary amputation code for the foot/toe region with no separate revision category; the SNOMED concept's "revision" meaning (stump revision or re-amputation at a more proximal level) is not captured, making this a related but not equivalent mapping. |
| 405438009 (Revision of amputation of thumb) | is related to | MGB.JN.AA (Amputation of bone of hand or finger) | The thumb is anatomically a finger, so amputation of bone of hand or finger is the nearest ICHI code, but the code is broader (covers all fingers/hand bones) and does not encode the "revision" intent of the SNOMED concept. |
| 405440004 (Revision of amputation of toe) | is related to | MOB.JN.AA (Amputation of bone of foot or toe) | ICHI has no explicit "revision of amputation" code; the closest relevant code is the primary amputation procedure for the same anatomical site (bone of foot or toe). A revision of a toe amputation involves re-amputation at a more proximal level or stump reshaping, which is conceptually related but not semantically equivalent to the original amputation code. |
| 1306657008 (Revision of amputation stump) | is related to | MRS.MK.AA (Repair of soft tissue of unspecified site) | ICHI contains no specific "revision of amputation stump" code; revision stump surgery primarily involves soft tissue remodelling (skin flap revision, myoplasty, bone trimming), making repair of soft tissue the closest available concept, though it is non-specific as to site and does not capture the post-amputation revision intent. |
| 405352005 (Revision of anastomosis of abdominal vascular prosthesis) | is related to | IEA.ML.AA (Reconstruction of abdominal or pelvic artery) | Revision of an abdominal vascular prosthetic anastomosis is a re-operative procedure on a previously placed graft; ICHI does not have a specific revision/re-do vascular code, but reconstruction of abdominal or pelvic artery is the most semantically proximate concept, as it encompasses surgical reworking of abdominal arterial structures, though it does not specifically capture prosthesis involvement or revision context. |
| 27136005 (Revision of anastomosis of blood vessel) | is related to | IZE.MK.AA (Repair of blood vessel, not elsewhere classified) | ICHI has no dedicated "revision of vascular anastomosis" code; "Repair of blood vessel, not elsewhere classified" is the closest functional equivalent since a revision of an anastomosis constitutes a form of repair, but repair is semantically broader and does not specifically imply an existing anastomosis is being revised. |
| 174564003 (Revision of anastomosis of common bile duct) | is related to | KCM.ML.AA (Reconstruction of bile ducts) | ICHI has no code specifically for revision of a bile duct anastomosis; "Reconstruction of bile ducts" under the bile duct block (which encompasses the common bile duct) is the nearest match, as reconstruction often entails revising a prior anastomotic connection, but it is broader and does not explicitly denote revision of an existing anastomosis. |
| 174503007 (Revision of anastomosis of gallbladder) | is related to | KCF.MK.AA (Repair of gallbladder) | The gallbladder block in ICHI contains no anastomosis or reconstruction code; "Repair of gallbladder" is the closest available concept since revision of an anastomosis at the gallbladder constitutes a corrective/repair procedure, though the mapping is approximate and does not capture the anastomosis-specific nature of the SNOMED concept. |
| 174557000 (Revision of anastomosis of hepatic duct) | is related to | KCM.ML.AA (Reconstruction of bile ducts) | The hepatic duct falls within the bile duct block (BlockL5-KCM) in ICHI, and "Reconstruction of bile ducts" is the nearest concept for revising an existing hepatic duct anastomosis, but it is broader (covering all bile ducts) and does not specifically denote hepatic duct or revision of a prior anastomosis. |
| 44800008 (Revision of anastomosis of vein) | is related to | IZD.MK.AA (Repair of vein, not elsewhere classified) | ICHI has no specific "revision of venous anastomosis" code; repair of a vein (IZD.MK.AA) in the NEC vein block is the closest structural match, capturing corrective work on a vein without specifying the anastomotic context. The SNOMED concept is more precise (revising a prior anastomosis specifically), making this a related but not equivalent mapping. |
| 231741009 (Revision of anterior chamber) | is related to | BBE.MK.AA (Repair of anterior chamber of eye) | ICHI does not have a dedicated "revision" action for the anterior chamber; repair (MK action) is the closest concept, covering corrective intervention on the anterior chamber structure. The SNOMED concept implies reworking a prior procedure, which is not fully captured by the general repair code. |
| 173704005 (Revision of antireflux operation) | is related to | KBE.MK.AA (Repair of gastroesophageal junction) | Antireflux operations (fundoplication, hiatal hernia repair) act on the gastroesophageal junction, and revision maps most closely to repair of that structure in ICHI. The mapping is relatedto because ICHI repair does not specifically encode the concept of revising a prior antireflux procedure, and fundoplication wrapping is not captured in the action axis. |
| 609324002 (Revision of appendicovesicostomy) | is related to | NAI.LB.AA (Anastomosis of bladder) | ICHI has no code for appendicovesicostomy or its revision; the appendicovesicostomy creates a bladder anastomosis/connection using the appendix as a channel, making NAI.LB.AA the closest structural match, but the code does not capture the appendix conduit, the continent stoma, or the revision nature of the procedure. |
| 440587008 (Revision of aqueous shunt to extraocular reservoir) | is related to | BBE.SN.AA (Management of internal device of anterior chamber of eye) | ICHI has no specific glaucoma drainage device code; BBE.SN.AA covers management (including revision) of an internal device in the anterior chamber, which is where aqueous shunts are placed, but it does not capture the extraocular reservoir component or the shunt-specific nature of the revision. |
| 179579007 (Revision of arthrodesis) | is related to | MRJ.LE.AA (Arthrodesis of joint of unspecified site) | ICHI has no revision-of-arthrodesis code; MRJ.LE.AA is the most general arthrodesis code and covers the same joint fusion procedure at an unspecified site, but it represents a primary arthrodesis rather than a revision, and does not encode the corrective/redo nature of the SNOMED concept. |
| 450794001 (Revision of closure of defect of septum of heart) | is related to | BlockL5-HAD (Interventions on atrial septum) | No single ICHI category code covers revision of both atrial and ventricular septal defect closure; the concept is non-specific as to which septum is involved, and the closest grouping is the block-level code for atrial septum interventions, making a precise category mapping impossible without further specification. |
| 429327007 (Revision of conduit) | is related to | HBB.KA.AA (Replacement of conduit between right ventricle and pulmonary artery) | The SNOMED concept is anatomically non-specific (any conduit), while HBB.KA.AA refers specifically to replacement of a cardiac RV-to-pulmonary-artery conduit; though this is the most common surgical conduit context, the ICHI code is both narrower (one specific conduit) and semantically shifted (replacement vs. revision). |
| 179540001 (Revision of excision arthroplasty) | is related to | MRJ.JJ.AA (Partial excision of joint of unspecified site) | ICHI lacks a dedicated "revision of excision arthroplasty" code and does not distinguish revision from primary procedures; MRJ.JJ.AA (partial excision of joint, unspecified site) is the closest structural match for excision arthroplasty in general, but does not capture the revision/redo nature of the SNOMED concept. |
| 450796004 (Revision of fusion of joint and external fixation) | is related to | MRJ.MK.AA (Repair of joint of unspecified site) | ICHI has no dedicated "revision of arthrodesis with external fixator" code; MRJ.MK.AA (repair of joint, unspecified site) is the closest available concept, but it does not capture the specific combination of revising a prior fusion plus managing an external fixation device, making it only relationally approximate. |
| 86881008 (Revision of heart procedure) | is related to | HZZ.MK.AA (Repair of heart, not elsewhere classified) | ICHI has no generic "revision of prior cardiac procedure" code; HZZ.MK.AA (repair of heart, NEC) is the closest available concept at the whole-heart level, but "revision" implies re-operation on a previous intervention rather than primary repair, making this only a relational match rather than a semantic equivalent. |
| 175042007 (Revision of implantation of thoracic artery into heart) | is related to | HFD.FA.AA (Transmyocardial revascularisation) | The Vineberg procedure (implanting a thoracic artery directly into myocardium) is the conceptual predecessor of transmyocardial revascularisation; ICHI has no dedicated "revision of" action code, and no code captures re-operation of this specific thoracic artery–to–myocardium implantation. HFD.FA.AA is the closest available concept in terms of the same physiological goal (direct myocardial revascularisation via thoracic vessel), but it is a different technique and does not encode the revision/redo nature. |
| 61305000 (Revision of mastoid antrum) | is related to | CDA.JK.AC (Total mastoidectomy) | ICHI has no dedicated "revision of mastoid antrum" code; the mastoid antrum is a sub-cavity of the mastoid sinus, and revision surgery in this area most closely corresponds to total mastoidectomy, but the ICHI code does not convey the revision intent or the specific antrum target. |
| 56791004 (Revision of mastoidectomy) | is related to | CDA.JK.AC (Total mastoidectomy) | ICHI encodes the type of mastoidectomy (partial, total, radical) but has no axis value or dedicated code for a revision/redo procedure; total mastoidectomy is the most representative code for a redo mastoidectomy, though it does not capture the revision intent. |
| 179081002 (Revision of open reduction of fracture and internal fixation with tension band wiring) | is related to | MRB.LD.AA (Open reduction of bone of unspecified site) | ICHI has no code for revising a prior ORIF or for tension band wiring; the closest structural match is open reduction of bone at an unspecified site, which captures the operative approach but omits the "revision" nature, the internal fixation method, and the specific tension band wiring technique. |
| 12868007 (Revision of operative wound of anterior segment of eye) | is related to | BBE.MK.AA (Repair of anterior chamber of eye) | The SNOMED concept covers revision of any wound across all anterior segment structures (conjunctiva, cornea, iris, ciliary body, anterior chamber, lens), while ICHI's closest match scopes only to the anterior chamber; no single ICHI code spans all anterior segment structures, making this a related but structurally narrower and anatomically partial match. |
| 175342004 (Revision of plastic repair of aorta) | is related to | HIF.ML.AA (Reconstruction of ascending aorta) | ICHI encodes aortic reconstruction only at the level of specific anatomical segments (ascending, descending thoracic, abdominal, arch, root), while the SNOMED concept specifies the aorta generically with no segment, and neither ICHI classifies "revision" as a distinct action axis — making any single ICHI category code a segment-specific approximation rather than a true equivalent. |
| 33582004 (Revision of pyelointestinal anastomosis) | is related to | NAE.LI.AA (Urinary diversion) | A pyelointestinal anastomosis is a form of urinary diversion connecting the renal pelvis to the intestine, and ICHI's NAE.LI.AA (Urinary diversion) is the closest structural concept; however, ICHI does not model revision vs. primary construction, and the anatomical target in ICHI is ureter-level rather than renal pelvis, making this a related rather than equivalent match. |
| 284079008 (Revision of scar) | is related to | LZZ.FC.AA (Release of scar or web contracture of skin, not elsewhere classified) | ICHI's only scar-specific code covers release of scar contracture, whereas "revision of scar" in clinical use means surgical excision and reshaping of a scar (not simply release of a contracture), so the two concepts are related but not semantically equivalent. |
| 85987003 (Revision of spinal neurostimulator receiver) | is related to | ABN.KA.AE (Percutaneous replacement of spinal nerve device) | ICHI does not have a dedicated revision code for a spinal neurostimulator receiver; ABN.KA.AE covers percutaneous replacement of a spinal nerve device, which is the closest procedural concept, but "revision" and "replacement" are not semantically equivalent, and the receiver/generator component is not explicitly captured. |
| 405445009 (Revision of Syme's amputation) | is related to | MOB.JN.AA (Amputation of bone of foot or toe) | Syme's amputation is a disarticulation at the ankle through the calcaneus/talus (foot/ankle level), and "Revision of Syme's amputation" refers to reworking the residual stump — a concept ICHI does not encode distinctly. MOB.JN.AA (amputation of bone of foot or toe) is the closest anatomical match for the original amputation level, but ICHI lacks a "revision" action axis value, making this a related rather than equivalent match. |
| 172246005 (Revision of tarsorrhaphy) | is related to | BAA.FB.AA (Severing of blepharorrhaphy) | Tarsorrhaphy (surgical suturing of the eyelids) revision typically involves taking down and redoing the eyelid suturing; ICHI encodes "Severing of blepharorrhaphy" (BAA.FB.AA) — which is the division of a prior eyelid closure — as the closest procedural concept. This is related but not equivalent, as revision implies both release and re-suturing, whereas BAA.FB.AA covers only the takedown component. |
| 314117007 (Revision of trabeculectomy) | is related to | BBE.MK.AA (Repair of anterior chamber of eye) | ICHI has no dedicated trabeculectomy or trabecular meshwork excision code; the anterior chamber of the eye is the operative target of trabeculectomy and revision surgery on it is best represented by the repair/revision concept in BBE.MK.AA, but this is a functional analogy rather than a direct semantic match. |
| 405791000119100 (Revision of transjugular intrahepatic portosystemic shunt) | is related to | IEF.LH.AF (Percutaneous transluminal dilatation with insertion of device into portal vein and branches) | ICHI has no specific code for TIPS revision; IEF.LH.AF captures the percutaneous transluminal approach with device insertion into the portal vein and branches, which is the procedural core of a TIPS revision (stent re-dilation/replacement), but it does not encode the hepatic-venous shunt character of TIPS or the revision intent explicitly. |
| 405416007 (Revision of transmetatarsal amputation) | is related to | MOB.JN.AA (Amputation of bone of foot or toe) | ICHI has no revision-of-amputation or transmetatarsal-level amputation code; MOB.JN.AA is the closest available code covering amputation of bones of the foot, which is the target structure and procedure type, but it does not capture the revision (re-amputation/stump revision) intent or the specific transmetatarsal level. |
| 38803003 (Revision of vascular procedure) | is related to | IZE.MK.AA (Repair of blood vessel, not elsewhere classified) | There is no ICHI code specifically for revision of a vascular procedure as a category. IZE.MK.AA (repair of blood vessel, NEC) is the closest structural analog — repair implies correcting a prior intervention — but the ICHI code is conceptually about repairing the vessel itself rather than revising a previous procedure, so the match is related but not equivalent. |
| 179789009 (Revision prosthetic augmentation extra-articular ligament) | is related to | MML.ML.AA (Reconstruction of ligaments of knee) | ICHI contains no code for prosthetic augmentation of an extra-articular ligament or for ligament augmentation with a synthetic device; MML.ML.AA (reconstruction of ligaments of knee) is the closest procedural category involving ligament reconstruction at the knee, but it does not capture the prosthetic/augmentation nature, the extra-articular specificity, or the revision context, making this only a related mapping. |
| 179745009 (Revision prosthetic replacement extra-articular ligament) | is related to | MML.ML.AA (Reconstruction of ligaments of knee) | ICHI has no specific code for prosthetic replacement of an extra-articular ligament; MML.ML.AA covers ligament reconstruction at the knee but misses the prosthetic replacement, extra-articular, and revision dimensions, so the relationship is related rather than equivalent or approximate. |
| 180074008 (Revision release radius- correction for congenital deformity of forearm) | is related to | MFB.FA.AA (Osteotomy of bone of forearm) | "Release of radius for correction of congenital forearm deformity" is a complex procedure that can involve osteotomy and soft-tissue release of the forearm bones; MFB.FA.AA (osteotomy of bone of forearm) captures the osseous component but does not reflect the soft-tissue release, the congenital indication, or the revision nature, making this only a related match. |
| 178694009 (Revision to bedrest stabilization of spinal fracture) | is related to | MBZ.LC.AH (Application of external immobilisation device to spine, not elsewhere classified) | Bedrest stabilisation of a spinal fracture is a conservative, non-device-based management approach not directly represented in ICHI; the closest available code is external immobilisation of spine NEC, which involves an applied device and does not capture the bedrest or revision aspects of the SNOMED concept. |
| 179148001 (Revision to closed reduction of fracture and functional bracing) | is related to | MLB.LD.AH (Closed reduction of femur) | ICHI does not have a combined "closed reduction plus functional bracing" code, nor does it encode the "revision" (redo) qualifier; MLB.LD.AH captures the closed-reduction component but is specific to the femur and omits the bracing/immobilisation element, making this a related but inexact match. |
| 179684009 (Revision to closed reduction of fracture dislocation and fixation with wire(s)) | is related to | MLB.LD.AH (Closed reduction of femur) | ICHI has no combined code for closed reduction of a fracture-dislocation with percutaneous wire fixation, and no "revision" qualifier exists; the closed-reduction component maps loosely to MLB.LD.AH, but the wire fixation (an internal device implantation) and the revision nature are both lost, so this is only a related match. |
| 179073003 (Revision to open reduction of fracture and skeletal traction) | is related to | MRB.LC.AE (Percutaneous application of external immobilisation device to bone of unspecified site) | Skeletal traction (pins/wires through bone applying traction force) is most closely represented by the percutaneous external immobilisation device code, but ICHI does not combine this with an open reduction step or encode the revision/redo nature; the match is related but not structurally equivalent. |
| 179071001 (Revision to open reduction of fracture and skin traction) | is related to | MRB.LC.AH (Application of external immobilisation device to bone of unspecified site) | Skin traction (non-invasive traction applied to the skin surface) best maps to the non-percutaneous external immobilisation device application code, but the open reduction component and the revision context are not captured, making this a related rather than equivalent match. |
| 415349007 (Rose bengal staining of eye) | is related to | BlockL5-BBA (Interventions on conjunctiva) | ICHI has no code for vital dye (rose bengal) staining of the ocular surface; the conjunctiva block is the anatomically correct parent grouping since rose bengal staining targets the conjunctiva and cornea, but no specific diagnostic staining category code exists, making the block the best available representation. |
| 232840001 (Rotation of implanted aortic valve) | is related to | HDE.MK.AA (Repair of aortic valve) | ICHI has no dedicated code for rotating or repositioning an existing aortic valve prosthesis; HDE.MK.AA (Repair of aortic valve) is the closest available code as it represents a surgical intervention on the aortic valve aimed at restoring function, though it does not specifically capture the rotation/repositioning of an already implanted device. |
| 232925002 (Rotation of implanted atrioventricular valve) | is related to | HDM.MK.AA (Repair of congenitally malformed atrioventricular valve) | ICHI has no code for rotation of an implanted valve; the closest available concept in the atrioventricular valve block is repair (HDM.MK.AA), but this covers general repair rather than the specific mechanical act of rotating a prosthetic valve. The atrioventricular valve block (HDM) is also scoped to congenitally malformed valves, adding further semantic distance. |
| 232775008 (Rotation of implanted mitral valve) | is related to | HDF.MK.AA (Repair of mitral valve or subvalvar apparatus) | ICHI has no code for rotation of an implanted valve at any valve site; HDF.MK.AA (repair of mitral valve or subvalvar apparatus) is the closest available concept for a post-implantation corrective intervention on the mitral valve, but does not capture the specific action of physical rotation of a prosthesis. |
| 232876000 (Rotation of implanted pulmonary valve) | is related to | HDG.MK.AA (Repair of pulmonary valve) | ICHI has no code for rotation of an implanted valve; HDG.MK.AA (repair of pulmonary valve) is the closest available concept within the pulmonary valve block but is semantically broader, covering any corrective repair rather than the specific mechanical rotation of a prosthetic valve. |
| 232813001 (Rotation of implanted tricuspid valve) | is related to | HDH.MK.AA (Repair of tricuspid valve or subvalvar apparatus) | ICHI has no code for rotation of an implanted valve; HDH.MK.AA (repair of tricuspid valve or subvalvar apparatus) is the closest available concept within the tricuspid valve block but does not specifically capture the act of rotating a prosthetic valve. |
| 232953002 (Rotation of implanted truncal valve) | is related to | HDI.MK.AA (Repair of truncal valve) | ICHI has no code for rotation of an implanted valve; HDI.MK.AA (repair of truncal valve) is the closest available concept within the truncal valve block, but the truncal valve block is also the smallest (only 4 codes total) and no code captures the specific mechanical rotation of a prosthesis. |
| 397969000 (Rubber band tourniquet positioned on patient) | is related to | PZX.LD.ZZ (Positioning of a part of the body, not elsewhere classified) | ICHI has no code for tourniquet application; the closest structural concept is general body-part positioning (PZX.LD.ZZ), but a tourniquet is a haemostatic/vascular-occlusion device, not merely a positioning act. No ICHI code captures the specific purpose or device, making this only relatedly equivalent. |
| 386812007 (Safety precautions) | is related to | VC1.TM.ZZ (Environment modification to influence safety-related behaviours, unspecified) | "Safety precautions" in SNOMED CT refers broadly to actions taken to prevent harm or injury, which most closely aligns with environment/behaviour modification in ICHI; however, no ICHI category directly captures "safety precautions" as a general concept, and VC1.TM.ZZ is one of several plausible matches. The match is relatedto because the SNOMED concept is a general process/action category rather than a specific ICHI-style intervention with a defined action axis. |
| 1285279003 (School health program) | is related to | UEP.VN.ZZ (Establishing health services or health-related services in relation to health services, systems and policies) | ICHI does not have a dedicated code for school health programs as a delivery model; UEP.VN.ZZ captures the programmatic/service-establishment dimension, but is a poor semantic fit since a school health program is an ongoing population-targeted service delivery concept rather than an act of establishing a policy or system. No closer match exists in ICHI. |
| 56757003 (Scraping) | is related to | PZX.AH.XH (Specimen collection of tissue) | "Scraping" in clinical context most commonly refers to obtaining a tissue/cellular specimen by mechanical scraping of a surface (e.g., skin scraping for microscopy); PZX.AH.XH (Specimen collection of tissue, any site NEC) captures this intent at a generic level, but ICHI offers no specific scraping code, and "scraping" can also refer to debridement rather than specimen collection depending on context. |
| 410354001 (Screening case management) | is related to | PZB.TD.ZZ (Case coordination) | ICHI "Case coordination" (PZB.TD.ZZ) covers the coordination and management of a patient's care across services, which is the closest functional analog to screening case management. The match is only "relatedto" because ICHI does not specifically scope this activity to a screening context, and "case management" carries a broader meaning than simple coordination. |
| 45010005 (Secondary revision of orbitocraniofacial reconstruction) | is related to | BAM.ML.AA (Reconstruction of orbit) | BAM.ML.AA covers reconstruction of the orbit alone and does not encompass the cranial or broader facial bone components of orbitocraniofacial reconstruction, nor does it convey the secondary/revision nature of the procedure; it is related but not an adequate representation of the multistructure revision concept. |
| 72641008 (Sedation) | is related to | PZA.DC.AF (Intravenous anaesthesia) | ICHI has no dedicated "sedation" code; sedation is most commonly administered intravenously and shares the anaesthesia action axis (DC), but PZA.DC.AF specifically denotes full intravenous anaesthesia, which is broader and deeper than procedural sedation. No closer ICHI code exists for the general concept of sedation. |
| 392028003 (Selective laser trabeculoplasty) | is related to | BBE.LI.AA (Facilitation of circulation in anterior chamber of eye) | ICHI has no specific code for laser trabeculoplasty; the procedure works by improving aqueous humour outflow through the trabecular meshwork (anterior chamber target), and BBE.LI.AA (facilitation of circulation in anterior chamber of eye) captures the functional goal of the intervention, though the laser means and trabecular meshwork specificity are absent from this code. |
| 386430007 (Self-responsibility facilitation) | is related to | SM1.PP.ZZ (Counselling about self care, unspecified) | Self-responsibility facilitation is a nursing/health promotion intervention that encourages patients to take ownership of their health behaviours, which aligns most closely with counselling about self care in ICHI. The match is only relatedto because ICHI does not have a code for facilitating or promoting self-responsibility specifically — SM1.PP.ZZ captures the counselling modality but not the empowerment/facilitation framing. |
| 88778001 (Separation of blood unit into aliquots) | is related to | DIA.JH.AF (Collection of blood or blood products) | ICHI lacks a specific code for dividing a donated blood unit into component aliquots (a blood bank processing activity). DIA.JH.AF (Collection of blood or blood products) is the closest code within the interventions-on-blood block, but collection and aliquoting are conceptually distinct procedures; the match is related but not equivalent. |
| 166434005 (Serum pregnancy test (B-HCG)) | is related to | XG9A84 (Human chorionic gonadotropin) | XG9A84 is an ICHI extension code identifying the HCG substance/analyte rather than a procedure code for performing a serum pregnancy test. No dedicated assay or laboratory procedure code for beta-HCG measurement exists in ICHI, making this the closest related entry without a true procedural equivalent. |
| 363306006 (Sexual stimulation procedure) | is related to | NUA.AC.ZZ (Test of sexual functions) | ICHI has no specific code for sexual stimulation as a clinical procedure; NUA.AC.ZZ (Test of sexual functions, within the "Interventions on sexual functions" block) is the nearest category, but sexual stimulation in clinical contexts (e.g., for assessment or therapeutic purposes) does not map precisely to this testing concept. |
| 410307000 (Sickness/injury care education, guidance, and counseling) | is related to | SMH.PM.ZZ (Education in looking after one's health) | The SNOMED concept bundles three distinct ICHI actions (education PM, advising PN, counselling PP) into one code with a focus on sickness and injury care management, while ICHI separates these actions and maps health self-care education to SMH.PM.ZZ; no single ICHI code captures all three actions (education, guidance, and counseling) together nor specifically targets sickness/injury care as a combined concept. |
| 410309002 (Signs/symptoms-physical education, guidance, and counseling) | is related to | SMH.PM.ZZ (Education in looking after one's health) | The SNOMED concept describes education, guidance, and counseling specifically about physical signs and symptoms, which ICHI does not represent as a single unified code; SMH.PM.ZZ (education in looking after one's health) is the closest conceptual approximation under the activities-and-participation domain, but it does not distinguish symptom-focused education nor combine the three action types. |
| 229579009 (Silicone oil bath treatment) | is related to | PZA.ZZ.BS (Hydrotherapy with full immersion, for therapeutic purposes) | Silicone oil bath treatment is a physical therapy modality that uses heated silicone oil as a conductive thermal medium for the extremities, making it a thermotherapy technique rather than true water-based full-body hydrotherapy; PZA.ZZ.BS is the closest ICHI code but refers to water immersion of the whole body, so the match is related but imprecise in both medium and scope. |
| 225360001 (Skin care) | is related to | LTC.LD.ZZ (Positioning to protect skin functions) | ICHI has no direct "skin care" nursing intervention code; the closest available code in the skin functions block (BlockL4-LT2) is LTC.LD.ZZ, which captures a specific aspect of preventive skin care (pressure-relieving positioning). "Skin care" as a SNOMED concept is broader, encompassing cleansing, moisturising, wound management, and protective measures, so this is a related but not equivalent match. |
| 304039000 (Skin flap operation) | is related to | LZZ.JH.AA (Procurement of skin and subcutaneous tissue for graft or flap, not elsewhere classified) | ICHI does not have a dedicated assignable code for a skin flap procedure as a whole; LZZ.JH.AA covers the harvesting step (procurement of skin/subcutaneous tissue for a flap), which is the most directly skin-flap-specific code in the LZZ block. The SNOMED concept refers to the broader operation rather than just the procurement step, so the match is related but not equivalent. |
| 266789008 (Skin/soft tissue limb traction) | is related to | PZX.LC.AH (Application of cast or splint, not elsewhere classified) | ICHI has no dedicated code for skin traction of a limb; the closest available assignable code is PZX.LC.AH (application of cast or splint, NEC), which covers external non-invasive mechanical immobilisation of a body part — a related but not equivalent concept to skin traction, which uses adhesive/bandage pull rather than a cast or splint. |
| 386441009 (Sleep enhancement) | is related to | ATK.PH.ZZ (Training of sleep functions) | "Sleep enhancement" is a nursing intervention concept aimed at improving sleep quality, but no ICHI code directly encodes it; ATK.PH.ZZ (Training of sleep functions) is the closest actionable ICHI intervention targeting improvement of sleep, though it emphasises the training/exercise modality rather than the broader enhancement goal. |
| 225301004 (Sliding scale insulin regime) | is related to | PZA.DB.AE (Administering pharmacotherapy, percutaneous) | A sliding scale insulin regime is a dosing strategy for subcutaneous (percutaneous) insulin administration; PZA.DB.AE captures the administration act via percutaneous route but does not encode the "sliding scale" dosing logic or insulin specificity, making this a related but imprecise match. |
| 310429001 (Smoking monitoring invitation) | is related to | VDB.VB.ZZ (Awareness raising to influence screening behaviours) | "Smoking monitoring invitation" describes a proactive outreach action to invite a patient into a smoking-monitoring or screening programme, which has no precise ICHI equivalent; VDB.VB.ZZ (awareness raising to influence screening behaviours) is the closest related code as it targets behaviour change around uptake of health monitoring/screening services, but it represents a population-level awareness intervention rather than an individual patient invitation. |
| 228592000 (Social role valorization technique) | is related to | SX1.VA.ZZ (Capacity building in relation to engaging in community, social and civic life, unspecified) | Social role valorization (Wolfensberger) is a rehabilitation approach aimed at enhancing valued social roles and community inclusion for people with disabilities; SX1.VA.ZZ captures the capacity-building dimension of SRV (developing competence and enabling participation in community, social and civic life), but does not represent the advocacy/image-enhancement or theoretical framework aspects of SRV. |
| 243224001 (Social therapy) | is related to | ATF.PP.ZZ (Counselling for global psychosocial functions) | Social therapy (sociotherapy) is a psychosocial intervention targeting social functioning and interpersonal relationships, which aligns most closely with counselling for global psychosocial functions in the ICHI A-axis; however, ICHI does not have a code specifically for group or milieu-based social therapy, making this a related but inexact match. |
| 42149003 (Special care of wound) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | "Special care of wound" is a broad concept encompassing assessment, cleansing, debridement, and dressing of wounds; LZZ.DK.AH captures the most frequent and defining component (applying a dressing to skin/subcutaneous tissue, site unspecified), but it is only one element of wound care rather than the full spectrum implied by the SNOMED concept, making this a related rather than equivalent match. |
| 46798003 (Special radionuclide imaging technique) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | ICHI encodes radionuclide/radioisotope imaging at specific body-site levels (e.g. DGA.BA.BE for bone marrow, EBA.BA.BE for thyroid, PZA.BA.BE for whole body) using means codes BE (ionising agents/open), BF (single photon), and BG (positron), but has no generic "radionuclide imaging technique" category — PZA.BA.BE is the closest whole-body radioisotope code, though it represents a specific scan rather than the unspecified imaging technique concept in SNOMED. |
| 410359006 (Specimen collection case management) | is related to | PZB.TD.ZZ (Case coordination) | PZB.TD.ZZ (Case coordination) captures the care management and coordination dimension of this SNOMED concept, but is not restricted to specimen collection processes. The SNOMED concept's focus on coordinating specimen collection activities is only partially represented by this general case coordination code. |
| 174589009 (Sphincteroplasty of bile duct and pancreatic duct using duodenal approach) | is related to | KCM.MK.AA (Repair of bile duct) | No single ICHI code covers a combined bile duct and pancreatic duct sphincteroplasty; KCM.MK.AA (Repair of bile duct) captures the bile duct repair component of this dual-duct procedure, but omits the pancreatic duct sphincteroplasty and the specific duodenal approach, making this only a related match. |
| 180088007 (Stabilization of hypoplastic thumb) | is related to | MGJ.LE.AA (Arthrodesis of finger or hand) | ICHI has no dedicated code for thumb stabilization specifically addressing a hypoplastic thumb; the closest surgical stabilization procedure for a finger/hand joint is arthrodesis (MGJ.LE.AA), but this covers joint fusion only and does not capture the congenital/reconstructive nature of hypoplastic thumb stabilization. |
| 426498007 (Stabilization of spine) | is related to | MBZ.LE.AA (Spinal fusion, not elsewhere classified) | ICHI lacks a dedicated "spinal stabilization" code; spinal fusion (MBZ.LE.AA) is the closest procedure that achieves vertebral stability but represents only one specific technique (arthrodesis/fusion), whereas stabilization encompasses instrumentation, bracing, and fusion. |
| 404916008 (Sterile maggot wound debridement) | is related to | LZZ.DB.AH (External application of substance or living organism to skin and subcutaneous tissue, not elsewhere classified) | ICHI has no dedicated maggot debridement therapy code; LZZ.DB.AH covers external application of a living organism to skin (matching the biological mechanism) but does not capture the debridement action or wound context, making it a related rather than equivalent match. |
| 7128000 (Supply of spectacles) | is related to | UAD.TI.ZZ (Prescription of products and technology for personal use in daily living) | ICHI lacks a specific spectacles-supply code; UAD.TI.ZZ for prescribing personal-use assistive products is conceptually related but covers prescription rather than the physical supply or dispensing of spectacles. |
| 720579008 (Support for transition between environments) | is related to | XG38D0 (Discharge planning) | ICHI has no code for support during transitions between living or care environments broadly; XG38D0 (Discharge planning) is narrower and specific to hospital discharge rather than the general concept of supporting any environment transition. |
| 410318000 (Support group education, guidance, and counseling) | is related to | SMH.PP.ZZ (Counselling about looking after one's health) | ICHI's counselling about looking after one's health captures the counselling/guidance dimension, but ICHI has no notion of group delivery format and the education component is only partially reflected. |
| 386453008 (Support group facilitation) | is related to | ATF.RE.ZZ (Provision of peer support for global psychosocial functions) | Support group facilitation is fundamentally a peer support activity for psychosocial wellbeing; ATF.RE.ZZ is the closest available code but does not encode the facilitator role or structured group format. |
| 710820001 (Support of beliefs) | is related to | SXH.RC.ZZ (Emotional support for engaging in religion and spirituality) | ICHI's closest coverage for personal beliefs sits under religion and spirituality; SXH.RC.ZZ overlaps with the SNOMED concept but is narrower in scope (religion/spirituality only) and may not cover secular value systems. |
| 226006008 (Support of chronically ill patient) | is related to | SMH.RB.ZZ (Practical support with looking after one's health) | ICHI does not classify by disease chronicity; SMH.RB.ZZ covers ongoing practical assistance with health self-management but is broader (not limited to chronic illness) and does not capture the full multidimensional support implied. |
| 1155836002 (Support of victim of abuse) | is related to | VB1.RC.ZZ (Emotional support for violence-related behaviours, unspecified) | VB1.RC.ZZ captures emotional support in the context of violence-related behaviours, overlapping with abuse-victim support, but the ICHI code frames the target as a behaviour class rather than a victim, making it imprecise. |
| 169414008 (Supportive pharmacotherapy) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | ICHI lacks a concept for pharmacotherapy administered in a supportive (palliative/adjunctive) role; PZX.TI.ZZ covers the prescribing act for pharmacotherapy generically and captures the prescribing action rather than the supportive intent. |
| 243202001 (Suppression of Rhesus isoimmunization) | is related to | DTB.DB.AF (Intravenous administration of immunological agent) | Rh suppression is achieved by administering anti-D immunoglobulin; DTB.DB.AF captures the IV administration of an immunological agent but does not encode the specific Rhesus/anti-D purpose or IM route variant. |
| 14473006 (Surface brachytherapy) | is related to | LZZ.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue by radiotherapy, not elsewhere classified) | Surface brachytherapy applies a radioactive source directly to the skin to treat superficial lesions; LZZ.GA.BA covers radiotherapy-based destruction of skin tissue NEC but does not distinguish brachytherapy from external beam radiotherapy. |
| 3249005 (Surgical construction of filtration bleb) | is related to | BCB.JB.AA (Drainage of sclera) | A filtration bleb is a subconjunctival reservoir created by fashioning a fistula through the sclera (trabeculectomy) to drain aqueous humour; ICHI has no code that captures the bleb construction aspect specifically. |
| 773133007 (Surgical distraction of externally adjustable spinal deformity correction system) | is related to | MBZ.KA.AA (Replacement of spinal device, not elsewhere classified) | ICHI has no code for distraction or adjustment of an existing spinal correction device (e.g., growing rod or MAGEC); the closest available code covers replacement of a spinal device NEC, a related but semantically distinct intervention. |
| 312073002 (Placement for disabled college) | is related to | STG.RB.ZZ (Practical support with engaging in higher education) | "Placement for disabled college" refers to facilitating a person with a disability into a college/higher-education setting, which aligns most closely with the ICHI concept of practical support to enable engagement in higher education; however, ICHI's target is the activity of engaging in higher education rather than an administrative placement act, so the match is relational rather than equivalent. |
| 312053007 (Placement for rehabilitation) | is related to | UEP.TI.ZZ (Referral to health provider) | "Placement for rehabilitation" describes an administrative act of arranging a patient's entry into a rehabilitation facility, which is closest to ICHI's referral to a health provider; ICHI has no specific code for placing a patient into a rehabilitation service, so this is a related but imprecise match. |
| 312074008 (Placement for residential accommodation) | is related to | UEE.RG.ZZ (Providing housing services, systems and policies) | "Placement for residential accommodation" is an act of arranging a person into a residential setting, which falls within the scope of providing housing services in ICHI; the ICHI code is substantially broader — covering entire housing services systems and policies — so equivalence cannot be claimed beyond a relational link. |
| 68894007 (Placing restraint) | is related to | UBC.WB.ZZ (Restricting movement of people) | ICHI has no code for applying physical restraint to an individual patient in a clinical or custodial setting; UBC.WB.ZZ is structurally the closest concept but belongs to population-level environmental interventions rather than an individual nursing or safety procedure. |
| 713701007 (Plain X-ray of ventriculoperitoneal shunt) | is related to | AAE.SN.AA (Management of internal device of ventricles of brain) | There is no dedicated ICHI code for imaging a ventriculoperitoneal shunt; AAE.SN.AA is the closest related concept because a VP shunt is a ventricular internal device and its X-ray is performed for device management purposes, but the ICHI code is a management action rather than an imaging intervention and does not reference the peritoneal component of the shunt. |
| 75480003 (Planning audit) | is related to | UEP.AA.ZZ (Assessment of health services, systems and policies) | A "planning audit" is a formal review/evaluation of planning processes, which maps conceptually to assessment in the health services, systems and policies domain; however, ICHI's code is broader (covering all assessment of health services/systems/policies) and does not distinguish an audit specifically of planning activities. |
| 72316005 (Platelet concentrate, pooling) | is related to | DIA.JH.AF (Collection of blood or blood products) | ICHI has no code for pooling of platelet concentrates, which is a laboratory processing step; the closest code covers collection of blood or blood products, which is a related but semantically distinct intervention. |
| 27848005 (Platelet concentrate, preparation) | is related to | DIA.JH.AF (Collection of blood or blood products) | ICHI contains no code for the laboratory preparation or fractionation of platelet concentrates from whole blood; the closest available code is collection of blood or blood products, which is related but captures a different step in the blood banking workflow. |
| 71687000 (Platelet rich plasma, preparation) | is related to | DIA.JH.AF (Collection of blood or blood products) | ICHI does not encode the processing or centrifugation steps used to prepare platelet-rich plasma; the interventions on blood block contains only collection, transfusion, and apheresis codes, making the collection code the nearest relatedto match. |
| 112850008 (Suture of laceration of palate) | is related to | KAS.MK.AA (Repair of soft palate) | ICHI distinguishes hard palate (KAT.MK.AA) from soft palate (KAS.MK.AA) but the SNOMED concept specifies only "palate" without qualification, making neither a precise match; KAS.MK.AA is selected as the anatomically more frequent site of palatal lacerations, but the ambiguity and the absence of a generic "palate repair" code prevent a closer equivalence. Additionally, ICHI "repair" is broader than suture/laceration specifically. |
| 46034007 (Suture of laceration of pharynx) | is related to | KAR.MK.AA (Repair of oral pharynx) | ICHI has no single generic "pharynx repair" code — it separates oral pharynx (KAR.MK.AA) and nasopharynx (no repair code, only reconstruction), so KAR.MK.AA is the closest available code, but it is anatomically narrower than the unspecified SNOMED "pharynx" target and still broader in procedure scope (repair vs. suture of laceration specifically). |
| 389064003 (Team conference) | is related to | PZB.TD.ZZ (Case coordination) | A team conference is a structured meeting of healthcare professionals to coordinate patient management, which relates to case coordination (PZB.TD.ZZ), but ICHI does not have a specific code for a multidisciplinary team conference as a discrete encounter type, making this a related rather than equivalent match. |
| 719858009 (Telehealth monitoring) | is related to | XG9S10 (Intervention provided to recipient/s in a distant location) | XG9S10 is an ICHI Telehealth extension code covering interventions delivered to a recipient at a distant location, which captures the remote/telehealth delivery aspect; however, it does not encode the monitoring action itself, making it a related rather than equivalent match. ICHI has no dedicated "telehealth monitoring" category. |
| 59218006 (Temporary transcutaneous pacing) | is related to | HFC.DL.AF (Percutaneous transluminal endocardial insertion of temporary pacemaker system) | Both codes represent temporary cardiac pacing, but the SNOMED concept specifies the transcutaneous (external skin electrode) route, while HFC.DL.AF specifies percutaneous transluminal endocardial (transvenous catheter) insertion — a fundamentally different approach. No ICHI code captures the non-invasive transcutaneous technique specifically. |
| 450663006 (Therapeutic drilling of bone) | is related to | MRB.FB.AA (Division of bone of unspecified site) | ICHI has no "drilling" action axis entry; "Division of bone" (FB action) is the nearest structural bone-cutting intervention at an unspecified site, but it represents osteotomy/cutting rather than the targeted drilling technique used therapeutically for conditions such as avascular necrosis or osteochondral lesions. |
| 110463001 (Therapeutic evaluation) | is related to | PZB.AA.ZZ (General health assessment) | "Therapeutic evaluation" in SNOMED refers to an evaluation performed within the context of a therapeutic intervention (e.g., assessing treatment response), whereas ICHI's PZB.AA.ZZ is a general whole-person health assessment without a specifically therapeutic framing; the concepts overlap in the assessment/evaluation domain but are not semantically equivalent. |
| 30916000 (Therapeutic manual traction) | is related to | MRJ.PA.AH (Manipulation of joint of unspecified site) | ICHI has no dedicated "manual traction" code; MRJ.PA.AH (manipulation of joint, unspecified site, manual means AH) is the closest concept covering hands-on mechanical force applied to a joint without specifying a body site, but manipulation encompasses more than traction and the site is unspecified. |
| 12285001 (Therapeutic mechanical traction) | is related to | MBZ.LC.AE (Direct or skeletal traction to the spine) | ICHI does not have a generic mechanical traction code applicable to any body part; MBZ.LC.AE is the only dedicated traction code in ICHI but is restricted to spinal skeletal/direct traction, making it semantically related but both narrower (spine-only) and potentially different in technique scope from the SNOMED concept. |
| 261570006 (Thermotherapy) | is related to | PZX.SD.BQ (Warming of peripheral body temperature, not elsewhere classified) | ICHI does not have a generic thermotherapy code; the closest is peripheral body warming (PZX.SD.BQ), which uses heat as a technique but is scoped to temperature regulation rather than the broad therapeutic use of heat modalities (e.g., for musculoskeletal pain, tumour ablation). The concepts are related but not semantically aligned. |
| 68082004 (Thrombectomy with catheter of iliac vein by abdominal and leg incision) | is related to | IFD.JE.AA (Extraction of obstruction from vein of lower limb) | ICHI has no thrombectomy/extraction code for the iliac vein, which belongs to the abdominal or pelvic vein block (IED) — and IED contains no extraction-of-obstruction code. IFD.JE.AA is the closest procedural analog (venous thrombectomy by open approach) but maps to the lower limb vein rather than the pelvic iliac vein, making it related rather than equivalent. |
| 105372003 (Transcatheter deployment of detachable balloon) | is related to | IZA.LA.AF (Endovascular occlusion of artery, not elsewhere classified) | Deployment of a detachable balloon is a specific endovascular occlusion technique (using a balloon as the embolic device) that achieves vessel occlusion via transcatheter approach; ICHI has no code specifically for detachable balloon deployment and the closest functional equivalent is endovascular occlusion of an artery NEC, but the target vessel is unspecified in the SNOMED concept and the ICHI code does not encode the balloon means, making this a related rather than equivalent match. |
| 90173004 (Transcatheter therapy by infusion) | is related to | IZA.DB.AF (Thrombolysis of artery, not elsewhere classified) | ICHI does not have a generic "transcatheter intraarterial infusion" code; the closest concepts are site-specific thrombolysis codes (which are catheter-directed infusions of a drug into an artery), but the SNOMED concept is a broad procedure category encompassing any agent (thrombolytics, chemotherapy, vasopressors) infused via catheter into any vessel, making any single ICHI code only relationally relevant rather than equivalent. |
| 41209002 (Transcatheter therapy for embolization with angiography) | is related to | IEA.LA.AF (Endovascular embolisation or occlusion of abdominal or pelvic artery) | ICHI encodes embolisation and angiography as completely separate interventions (e.g. IEA.LA.AF for embolisation, IEA.BA.BB for angiography), whereas the SNOMED concept specifically denotes a combined procedure where angiographic guidance is integral to the embolisation; no single ICHI code captures this combination, and IEA.LA.AF only partially matches at a specific anatomical site. |
| 32543005 (Transcatheter therapy with bougienage) | is related to | KBA.LG.AC (Dilatation of oesophagus) | Bougienage (bougie-based mechanical dilation of a stricture) is most commonly performed on the oesophagus, and KBA.LG.AC is the best available ICHI proxy; however, ICHI has no generic "transcatheter bougienage" or "catheter-based dilation of stricture" code, and the SNOMED concept is not restricted to the oesophagus — it covers any lumen dilated via transcatheter/bougie technique — making this only a relatedto match. |
| 233180004 (Transesophageal cardiac pacing procedure) | is related to | HFC.DL.AF (Percutaneous transluminal endocardial insertion of temporary pacemaker system) | ICHI has no specific code for transesophageal (oesophageal) temporary pacing; HFC.DL.AF is the closest available temporary pacing code, but it describes endocardial (intracardiac) insertion via a percutaneous transluminal route, whereas transesophageal pacing uses the oesophagus as the route and does not implant leads endocardially. The two procedures share the goal of temporary cardiac pacing but differ in approach and anatomy, making them related but not equivalent. |
| 35280008 (Transfer of digit to replace absent thumb) | is related to | MGT.LJ.AA (Tendon transfer or transplantation of hand or finger) | ICHI does not contain a dedicated code for pollicization or toe-to-thumb transfer; MGT.LJ.AA is the closest available code for tissue transfer/transplantation within the hand and finger domain, but it specifically addresses tendon transfer rather than the composite bony-soft-tissue digital transposition required to reconstruct an absent thumb. The two are related within hand surgery but describe procedurally distinct interventions. |
| 7709002 (Transfer of finger to opposite hand with amputation) | is related to | PME.ML.AA (Reconstruction of finger) | ICHI has no code for cross-hand digit transfer (a highly specific microsurgical procedure involving amputation and reimplantation on the contralateral hand). PME.ML.AA (Reconstruction of finger) is the closest available concept under the finger interventions block, but it does not capture the amputation, the contralateral transfer, or the microsurgical vascular anastomosis required. |
| 896969002 (Transfer of vascularized lymph node) | is related to | DFO.KD.AA (Transplantation of lymphatic vessel) | ICHI does not have a dedicated code for vascularized lymph node transfer (VLNT); DFO.KD.AA is the closest surgical lymphatic transplantation concept available, but it targets the lymphatic vessel rather than the lymph node itself, and does not convey the vascularized free-flap nature of the SNOMED procedure. |
| 410365006 (Transportation case management) | is related to | PZB.TD.ZZ (Case coordination) | ICHI does not have a transport-specific case management code; PZB.TD.ZZ "Case coordination" is the closest structural match as a care coordination/management activity, but it is domain-agnostic and does not carry the transport-specific focus of the SNOMED concept. |
| 80200006 (Transposition of biliary fistulous tract into stomach) | is related to | KCM.LI.AA (Choledochoenterostomy) | Choledochoenterostomy (KCM.LI.AA) covers anastomosis of the bile duct to bowel, which is the closest ICHI concept to rerouting a biliary fistulous tract into the stomach; however, ICHI does not have a specific code for anastomosis of a biliary fistula to the stomach (choledochogastrostomy), and the concept of using an existing fistulous tract rather than creating a new anastomosis makes this a related-but-not-equivalent match. |
| 23363003 (Transposition of large intestine) | is related to | KBZ.LB.AA (Large intestinal anastomosis, not elsewhere classified) | ICHI does not contain a code for transposition (repositioning) of the large intestine as a whole; the closest available code involves large intestinal anastomosis NEC (KBZ.LB.AA), which is a related procedure often performed in the same surgical context but does not capture the repositioning/rerouting nature of transposition. |
| 449656008 (Transposition of tissue of upper limb) | is related to | LAE.ML.AA (Skin graft to upper limb) | ICHI has no direct "transposition of tissue of upper limb" code; the LJ (transfer/transposition) action exists in ICHI only for specific targets (nerves, parotid, extraocular muscles, tendons), not for general soft tissue of the upper limb. The closest available code covers skin grafting/transfer to the upper limb (LAE.ML.AA), which shares the concept of tissue relocation but is restricted to skin/subcutaneous grafts rather than a broader tissue transposition. |
| 119662006 (Transposition of tissue of wrist) | is related to | LAE.ML.AA (Skin graft to upper limb) | ICHI does not have a specific "transposition of tissue of wrist" code, nor does the LJ (transfer/transposition) action exist for wrist-region soft tissue targets; the wrist block (MFJ) covers joint interventions only. LAE.ML.AA (skin graft to upper limb) is the nearest related code covering tissue transfer in the upper limb region, but it is anatomically broader and semantically approximate. |
| 233181000 (Transthoracic cardiac pacing procedure) | is related to | HFC.DL.AA (Insertion of temporary epicardial pacemaker system) | Transthoracic cardiac pacing involves applying pacing impulses across the chest wall (typically external transcutaneous pacing) or via a needle through the chest wall, which is a distinct approach from epicardial pacemaker insertion; HFC.DL.AA is the closest code in the conducting system block covering temporary cardiac pacing but describes surgical epicardial lead placement, not the transthoracic/transcutaneous route, making it related but not directly equivalent. |
| 225390008 (Triage) | is related to | PZB.AA.ZZ (General health assessment) | ICHI does not have a dedicated triage code; PZB.AA.ZZ (General health assessment of the whole person) is the closest in spirit as triage involves a rapid clinical assessment to determine urgency and care priority, but the ICHI code does not capture the prioritisation and sorting function that is central to triage. The concepts are related but not equivalent. |
| 1356867005 (Ultrasonography guided percutaneous insertion of fiducial marker into liver) | is related to | KCA.GA.AE (Percutaneous destruction of lesion or tissue of liver) | ICHI has no specific code for fiducial marker insertion into the liver; the closest structural match in the liver block is percutaneous destruction (KCA.GA.AE), but marker insertion is a device-placement/marking procedure, not destruction, making this only a related intervention on the same target via the same approach. No ICHI code for fiducial or reference marker implantation exists. |
| 715283006 (Ultrasonography guided removal of drain) | is related to | JCB.JD.AE (Removal of drainage device from pleural cavity) | No ICHI code exists for ultrasound-guided removal of a drain at an unspecified or general site — JCB.JD.AE is the closest found match but is restricted to the pleural cavity, making it anatomically narrower and not a reliable general mapping. The SNOMED concept is body-site-agnostic, so this is a related but not equivalent match. |
| 169434009 (Ultrasound percutaneous drug introduction) | is related to | MRS.DB.AE (Injection into soft tissue of unspecified site) | ICHI represents ultrasound guidance as an extension code (XG8MR0 "Ultrasonography guided") appended to a base procedure rather than encoding it in the primary code, and there is no standalone ICHI category for ultrasound-guided percutaneous drug delivery at an unspecified site; MRS.DB.AE captures the percutaneous injection component but omits the ultrasound-guidance and drug-specificity aspects of the SNOMED concept. |
| 303911009 (Ultrasound studies of systems) | is related to | MZZ.BA.BJ (Ultrasound of musculoskeletal system, not elsewhere classified) | "Ultrasound studies of systems" is a broad SNOMED grouping concept covering ultrasound imaging across multiple body systems, with no single ICHI code that matches its multi-system scope; MZZ.BA.BJ is only one system-level ultrasound code (musculoskeletal) and cannot represent the full breadth of the concept. |
| 169436006 (Ultrasound therapy - skeletal) | is related to | MZZ.BA.BJ (Ultrasound of musculoskeletal system, not elsewhere classified) | Therapeutic ultrasound applied to skeletal structures (e.g., bone healing stimulation) does not map cleanly to any ICHI category; MZZ.BA.BJ covers ultrasound of the musculoskeletal system but in a diagnostic imaging context (action BA = imaging), whereas the SNOMED concept is a therapeutic intervention — the target axis aligns but the action axis does not. |
| 304434003 (Ultrasound treatment to back) | is related to | MBZ.BA.BJ (Ultrasound of the spine, not elsewhere classified) | ICHI MBZ.BA.BJ covers ultrasound of the spine (back region) but with a diagnostic imaging action (BA), whereas the SNOMED concept describes therapeutic ultrasound treatment to the back; the anatomical target aligns well but the intended clinical action (treatment vs. imaging) is fundamentally different, and no ICHI code combines a therapeutic action with a back/spine target using ultrasound as the means. |
| 304426009 (Ultrasound treatment to face) | is related to | MRS.SC.BJ (Extracorporeal shockwave therapy of soft tissue of unspecified site) | ICHI has no specific code for therapeutic ultrasound to the face; the closest structural match is extracorporeal shockwave therapy of soft tissue (unspecified site), which shares the ultrasound-based acoustic delivery mechanism (means BJ) but differs in energy level and clinical intent. No site-specific head/face shockwave code exists in the MAS block. |
| 304429002 (Ultrasound treatment to lower limb) | is related to | MQS.SC.BJ (Extracorporeal shockwave therapy of lower limb, not elsewhere classified) | ICHI has no code specifically for therapeutic (physiotherapy) ultrasound to the lower limb; MQS.SC.BJ is the closest match, representing a sound-wave physical agent applied to lower limb soft tissue, but extracorporeal shockwave therapy is clinically distinct from low-intensity therapeutic ultrasound. |
| 304427000 (Ultrasound treatment to neck) | is related to | MRS.SC.BJ (Extracorporeal shockwave therapy of soft tissue of unspecified site) | ICHI has no site-specific shockwave or therapeutic ultrasound code for the neck within the MAS block (soft tissue head or neck), which only contains massage and stretch codes; MRS.SC.BJ at unspecified site is the closest available approximation using the acoustic/ultrasound means. |
| 304428005 (Ultrasound treatment to trunk) | is related to | MRS.SC.BJ (Extracorporeal shockwave therapy of soft tissue of unspecified site) | ICHI has no shockwave or therapeutic ultrasound code for the trunk; the MCS block (soft tissue of trunk) only contains massage and stretch codes, so MRS.SC.BJ at unspecified site is the closest structural approximation, differing both in anatomical specificity and in the type of ultrasound treatment intended. |
| 304425008 (Ultrasound treatment to upper limb) | is related to | MIS.SC.BJ (Extracorporeal shockwave therapy of upper limb, not elsewhere classified) | ICHI has no code specifically for therapeutic (physiotherapy) ultrasound to the upper limb; MIS.SC.BJ is the closest match, representing a sound-wave physical agent applied to upper limb soft tissue, but extracorporeal shockwave therapy is clinically distinct from low-intensity therapeutic ultrasound used in physiotherapy. |
| 238249002 (Umbilical cord clamp replacement) | is related to | NMM.LA.AH (Umbilical cord clamping) | ICHI has a specific code for umbilical cord clamping but no distinct code for clamp replacement (removing an existing clamp and applying a new one); clamp replacement is a related but procedurally distinct act from initial clamping, making this a related-to rather than equivalent match. |
| 304888004 (Understanding behavior) | is related to | AUH.AA.ZZ (Assessment of higher-level cognitive functions) | "Understanding behavior" in SNOMED refers to a cognitive function (comprehension), which maps most closely to ICHI's higher-level cognitive functions domain; AUH.AA.ZZ represents assessment of that function, but the SNOMED concept describes the behavior/function itself as a target rather than a specific intervention, making this a related but imprecise match. |
| 1287097003 (Unilateral biportal endoscopic operation on spine) | is related to | MBZ.JJ.AB (Endoscopic partial ostectomy of vertebra, not elsewhere classified) | ICHI does not have a code for unilateral biportal endoscopic spine surgery as a technique; the closest available codes are specific endoscopic spine procedures rather than the surgical approach itself, so the unspecified-site endoscopic vertebral ostectomy is the best approximate, but the SNOMED concept describes a surgical technique category spanning multiple procedure types. |
| 405370008 (Upper limb vascular prosthesis thrombectomy) | is related to | ICA.JE.AA (Endarterectomy of artery of upper limb) | ICHI has no specific code for thrombectomy of a vascular prosthesis/graft in the upper limb; the closest arterial intervention in the upper limb is endarterectomy, but this differs procedurally from thrombectomy of a prosthetic graft, making this only a related match. |
| 385961000 (Urinary bladder care) | is related to | NAI.SN.AC (Management of internal device for urinary bladder) | "Urinary bladder care" in SNOMED is a broad nursing/care concept encompassing catheter care, bladder training, and general bladder management, for which ICHI has no direct equivalent; NAI.SN.AC is the closest structural match but captures only the device-management aspect. |
| 410254003 (Urinary catheter insertion assessment) | is related to | NAI.DL.AD (Insertion of device into urinary bladder) | The SNOMED concept focuses on assessing/evaluating a catheter insertion procedure rather than performing it, but ICHI does not have an assessment-of-catheter-insertion code; NAI.DL.AD is the closest procedural correlate, making this a related rather than equivalent match. |
| 410257005 (Urinary catheter irrigation assessment) | is related to | NAI.JA.AC (Irrigation of urinary bladder) | The SNOMED concept describes assessing/evaluating urinary catheter irrigation rather than performing the irrigation itself, and ICHI has no assessment-of-irrigation code; NAI.JA.AC is the closest procedural match but represents the intervention rather than its assessment. |
| 711037002 (Use of de-escalation technique) | is related to | AUD.PP.ZZ (Counselling for emotional functions) | ICHI contains no code specifically for de-escalation as a distinct psychiatric/nursing intervention; AUD.PP.ZZ captures the goal of regulating emotional arousal but is a broader, non-specific counselling action rather than a defined safety technique used to reduce agitation or aggression. |
| 398143009 (Uterine contraction monitoring) | is related to | NMR.AI.AC (Internal fetal monitoring) | NMR.AI.AC is the closest ICHI code, covering internal monitoring of fetal structures (which includes intrapartum uterine contraction assessment via internal tocodynamometry), but the SNOMED concept refers specifically to uterine contraction monitoring and can be performed externally without any fetal monitoring component. |
| 704132003 (Vaginal care) | is related to | NMH.JA.AC (Irrigation of vagina) | ICHI has no generic "vaginal care" or nursing hygiene code for the vagina. NMH.JA.AC is the closest procedural code — it represents a common component of vaginal care (cleansing/douching) — but vaginal care as a SNOMED concept is broader and also encompasses assessment, dressing, and general hygiene activities. |
| 228590008 (Validation therapy) | is related to | ATF.PP.ZZ (Counselling for global psychosocial functions) | Validation therapy is a dementia-specific psychosocial technique that validates the emotional reality of individuals with cognitive decline; ICHI has no dedicated code for it, but ATF.PP.ZZ (counselling for global psychosocial functions) captures the closest domain — psychosocial counselling targeting global mental/psychosocial functioning. |
| 386491008 (Values clarification) | is related to | SCL.PP.ZZ (Counselling about decision making) | Values clarification is a structured facilitation technique used in clinical settings to help patients articulate personal values that inform health decisions; SCL.PP.ZZ is the closest ICHI code, as it covers counselling to support deliberation and decision-making, but it does not specifically encode the values-elicitation methodology. |
| 717285003 (Vascular system care) | is related to | IZE.AA.ZZ (Assessment of blood vessel, not elsewhere classified) | "Vascular system care" is a general nursing/clinical care concept without a direct ICHI equivalent; the closest available code covers assessment of blood vessels NEC, capturing only one component of broader care activities. |
| 312832004 (Venous cannula procedure) | is related to | IBD.DL.AF (Percutaneous transluminal insertion of device into vein of head and neck) | A venous cannula procedure involves inserting a cannula into a vein generically, but ICHI has no generic "insertion of device into peripheral vein" code; IBD.DL.AF is the closest structural match yet is restricted to head/neck. |
| 786453001 (Venovenous extracorporeal membrane oxygenation) | is related to | PSA.DD.AF (Cardiopulmonary bypass) | ICHI has no specific code for ECMO; cardiopulmonary bypass is the closest extracorporeal circulatory support procedure, but it differs mechanically — VV-ECMO is a veno-venous circuit providing respiratory (not cardiac) bypass, whereas PSA.DD.AF refers to standard arteriovenous CPB. |
| 408896001 (Wandering control assessment) | is related to | AS1.AA.ZZ (Assessment of mental functions, unspecified) | Wandering in clinical practice is a behavioural symptom typically associated with cognitive impairment (dementia, intellectual disability), so the underlying clinical activity is assessment of mental/cognitive function; however, AS1.AA.ZZ is a broad "unspecified" mental function assessment code and does not capture the safety-monitoring or behavioural-control dimension of a wandering control assessment. |
| 21583008 (Watson-Jones operation for reconstruction of lateral ligaments of ankle) | is related to | MOL.ML.AA (Reconstruction of ligament of foot or toe) | ICHI has no dedicated code for ankle lateral ligament reconstruction — the lower-leg ligament block (MNL) only contains incision and division codes, and the ankle joint block (MNJ) has no reconstruction-of-ligament entry. MOL.ML.AA covers reconstruction of ligament in the foot/toe region, which is the nearest available structural analogue but covers a different anatomical location (foot/toe, not ankle). |
| 388962008 (Weight maintenance regimen) | is related to | KTN.RB.ZZ (Practical support with weight management) | ICHI has no "regimen" or "care plan" code; practical support with weight management is the closest concept covering structured, ongoing management support, but it does not capture the planned-prescription nature of a regimen, and it spans all weight management goals rather than maintenance specifically. |
| 388976009 (Weight reduction regimen) | is related to | KTN.RB.ZZ (Practical support with weight management) | As with the maintenance regimen, ICHI lacks a "regimen" or "prescribed plan" code; practical support with weight management is the closest available concept, but it does not capture the prescriptive, weight-loss-specific character of a reduction regimen. |
| 310431005 (Well adult monitoring invitation) | is related to | VDB.VF.ZZ (Alert concerning screening behaviours) | "Well adult monitoring invitation" is an administrative act of notifying or prompting an individual to attend a health check — closest to an alert/reminder directed at screening behaviours in ICHI. No ICHI code exists for a formal invitation or recall letter as a standalone health intervention; VDB.VF.ZZ is the nearest available concept, but it is a population-level public health action rather than an individual-level appointment invitation. |
| 385991005 (Wellness promotion) | is related to | VEL.VB.ZZ (Awareness raising to influence behaviours related to psychological health and wellbeing) | "Wellness promotion" is a broad concept spanning education, lifestyle advice, and behaviour change to maintain or improve overall health; ICHI does not have a single generic "wellness promotion" code. VEL.VB.ZZ captures a key dimension but does not span physical health, nutrition, or the full multi-domain scope of wellness promotion, making this a related-to rather than equivalent match. |
| 709856004 (Wrist brachial pressure index) | is related to | ICA.BA.BJ (Ultrasound of artery of upper limb) | ICHI has no dedicated code for wrist brachial pressure index measurement; the closest is ICA.BA.BJ (ultrasound of upper limb artery), since Doppler ultrasound is the standard method for obtaining this pressure ratio, but the ICHI code captures only the imaging modality rather than the specific pressure index assessment. |
| 1303665004 (Wrist joint region denervation) | is related to | ACA.GA.AA (Destruction of peripheral nerve) | ICHI contains no dedicated wrist denervation code; denervation is achieved by destruction of the supplying nerve, and ACA.GA.AA is the closest matching action (peripheral nerve destruction), but it is anatomically non-specific and does not capture the wrist joint target region. |
| 13254001 (Abdominal hysterectomy with colpo-urethrocystopexy, Marshall-Marchetti-Krantz type) | is related to | NME.JK.AA (Total abdominal hysterectomy, not elsewhere classified) | The SNOMED concept is a compound procedure combining total abdominal hysterectomy with a bladder-neck suspension (Marshall-Marchetti-Krantz/colpo-urethrocystopexy), but ICHI does not have a single code representing both components together. NME.JK.AA captures only the hysterectomy component; the suspension component (NAK.LC.AA) would require a separate code, so the mapping is relatedto rather than equivalent or wider. |
| 1268347003 (Ablation of endometriosis of pelvis) | is related to | NME.GA.AB (Laparoscopic destruction of lesion or tissue of uterus) | Pelvic endometriosis ablation typically proceeds laparoscopically, and NME.GA.AB is the closest laparoscopic destruction code, but endometriosis of the pelvis involves implants on peritoneum and other pelvic structures beyond the uterus — ICHI lacks a dedicated pelvic endometriosis destruction code, making this only a related mapping. |
| 119722000 (Accessory sinus injection) | is related to | JAE.JB.AE (Puncture of paranasal sinus for aspiration or lavage, not elsewhere classified) | ICHI has no dedicated injection code for the paranasal sinus; the closest procedure is puncture for aspiration or lavage (JAE.JB.AE), which shares the same access route and clinical context as sinus injection. However, lavage/aspiration is not identical to injection, making this a related rather than equivalent match. |
| 261668008 (Accommodation of straddling atrioventricular papillary muscle) | is related to | HDM.LB.AA (Reattachment of congenitally malformed atrioventricular subvalvar apparatus) | "Accommodation of straddling atrioventricular papillary muscle" is a highly specific congenital cardiac surgical manoeuvre with no direct ICHI equivalent; the closest concept is reattachment of the congenitally malformed atrioventricular subvalvar apparatus (which includes the papillary muscles as part of that apparatus), but the SNOMED concept is more specific about the straddling geometry and accommodation technique than anything ICHI encodes. |
| 277448004 (Acidification regime) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | An acidification regime (e.g., dietary or pharmacological intervention to manipulate urine or systemic acid-base balance) is conceptually related to interventions on water, mineral, and electrolyte balance functions, but ETE.AA.ZZ represents assessment rather than a therapeutic regimen, making this only a related-concept match rather than a direct equivalent. |
| 33834001 (Acne surgery) | is related to | LAA.JB.AA (Drainage of skin and subcutaneous cell tissue of head or neck) | Acne surgery typically involves incision, drainage, or extraction of comedones and cysts from facial/truncal skin; ICHI site-specific drainage or local excision codes (e.g. LAA.JB.AA for head/neck, LAB.JB.AA for trunk) are related but cover only a single anatomical region and do not represent the full procedural concept of acne surgery across body sites. |
| 6656003 (Acoustic stimulation test) | is related to | NMR.AA.ZZ (Assessment of fetal or embryonic structure) | The fetal acoustic stimulation test (FAST) is an antepartum assessment where a sound source is applied to the maternal abdomen to provoke fetal heart rate acceleration; NMR.AA.ZZ (Assessment of fetal or embryonic structure) is the closest available ICHI code but does not capture the acoustic stimulation mechanism or the cardiotocographic response evaluation, making this a related but imprecise match. |
| 33230000 (Activation test) | is related to | PZA.AC.ZZ (Provocation test, not elsewhere classified) | "Activation test" in SNOMED refers to a provocative/challenge procedure used to elicit a physiological response (e.g., cardiac arrhythmia induction), which is conceptually similar to a provocation test. PZA.AC.ZZ is the residual whole-body provocation test code; however, the match is imprecise because ICHI's provocation tests typically refer to allergic/immune challenges rather than cardiac activation testing. |
| 229259000 (Active neck movements) | is related to | MTB.PG.ZZ (Assisting and leading exercise for mobility of joint functions) | ICHI has no code specific to neck or cervical joint active movement exercises; the closest match is MTB.PG.ZZ (assisting and leading exercise for joint mobility), which covers guided exercise to improve joint range of motion but is broader in scope (all joints, not neck-specific) and does not distinguish active from passive movement. |
| 229261009 (Active trunk movements) | is related to | MTB.PG.ZZ (Assisting and leading exercise for mobility of joint functions) | ICHI has no dedicated code for active trunk or spinal joint movements; MTB.PG.ZZ (assisting and leading exercise for joint mobility) is the closest available category, but it is body-site-unspecific and does not distinguish active (patient-generated) from passive or assisted movement. |
| 370865002 (Activity care management) | is related to | SDA.PH.ZZ (Training in undertaking tasks) | "Activity care management" refers to interventions aimed at managing a patient's participation in activities, which has no single exact ICHI equivalent; SDA.PH.ZZ (training in undertaking tasks) is the closest intervention-oriented code in the same domain, but management encompasses more than training alone, making this a related but inexact match. |
| 228531005 (Activity for ontogenetic motor pattern) | is related to | MVC.PG.ZZ (Assisting and leading exercise for involuntary movement reaction functions) | Ontogenetic motor pattern therapy (e.g., Vojta method) uses reflex-triggering and guided movement through early developmental postures to facilitate involuntary motor responses — this maps most closely to MVC.PG.ZZ (assisting and leading exercise for involuntary movement reaction functions), though ICHI does not have a dedicated code for ontogenetic/developmental movement therapy, making this a related rather than equivalent match. |
| 711388008 (Acute asthma control management) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI contains no asthma-specific management code; the respiratory function block (JT2) covers training and assessment rather than acute disease control. PZB.ZY.ZY, a residual whole-person health management encounter, is the closest available concept, but it is unspecific and does not capture the acute asthma context. |
| 234829005 (Adjust maxillary obturator) | is related to | KAE.LC.AC (Application of dental device) | ICHI has no specific code for adjusting a maxillary obturator prosthesis; the closest available code is "Application of dental device" (KAE.LC.AC) under interventions on teeth, but this captures initial fitting rather than the adjustment/management of an existing prosthesis. |
| 239352002 (Adjustment of electromagnetic bone stimulator) | is related to | MDB.DN.AH (Noninvasive placement of bone growth stimulator in bone of shoulder region) | ICHI contains only a single noninvasive bone growth stimulator code (MDB.DN.AH), which covers placement in the shoulder region and does not address adjustment or non-shoulder body sites; there is no dedicated ICHI code for adjusting an electromagnetic bone stimulator, making this only a loosely related match. |
| 431698006 (Adjustment of gastric banding using fluoroscopic guidance) | is related to | KBF.SN.AB (Laparoscopic adjustment of internal device of stomach) | KBF.SN.AB is the closest structural match — it captures laparoscopic adjustment of a gastric internal device (which can include a gastric band) — however the SNOMED concept specifies fluoroscopic guidance for percutaneous port access rather than a laparoscopic approach, making this a related rather than equivalent match. |
| 233442006 (Adjustment of inferior vena caval filter) | is related to | HIC.JD.AF (Percutaneous transluminal removal of internal device or foreign body from inferior vena cava) | ICHI has no dedicated "adjustment" or "repositioning" code for an IVC filter; the closest procedural categories are insertion (HIC.DL.AF) and removal (HIC.JD.AF) of a device in the inferior vena cava. Adjustment (repositioning) of an IVC filter is a related but distinct procedure that does not map cleanly to either insertion or removal, so relatedto best reflects the relationship. |
| 175260001 (Adjustment of pulmonary artery band) | is related to | HID.LL.AA (Banding of pulmonary artery) | ICHI has HID.LL.AA (Banding of pulmonary artery) for the initial placement and HID.FC.AA (Debanding of pulmonary artery) for removal, but no separate code for adjustment or tightening/loosening of an existing pulmonary artery band; the initial banding code is the closest structural match and is used as a relatedto mapping since adjustment is a distinct secondary procedure. |
| 709419002 (Adjustment of vertical expanding prosthetic titanium rib) | is related to | MCB.DN.AA (Implantation of device into bone of thoracic cage) | The VEPTR (vertical expandable prosthetic titanium rib) is a device implanted into the thoracic cage bones; however, MCB.DN.AA describes the original implantation rather than a subsequent adjustment/lengthening procedure. No ICHI code for revision or adjustment of a thoracic cage device exists, making this only a related match rather than an equivalent or wider one. |
| 239251006 (Adjustment to length of tendon or muscle) | is related to | MRT.LK.AA (Lengthening of tendon of unspecified site) | "Adjustment to length" encompasses both lengthening and shortening, while ICHI separates these into MRT.LK.AA (lengthening) and MRT.LL.AA (shortening); neither alone covers the full SNOMED concept, and the SNOMED term also includes muscle, whereas these ICHI codes address tendon only. MRT.LK.AA is the closest single code but represents only a subset of the SNOMED intent. |
| 230967000 (Adjustment to neurostimulator electrode in cranial nerve ganglion) | is related to | AAN.KA.AA (Replacement of cranial nerve device) | ICHI has no specific code for adjusting or repositioning a neurostimulator electrode in a cranial nerve ganglion; AAN.KA.AA (replacement of cranial nerve device) is the closest code in the cranial nerve device intervention cluster, but "adjustment" (e.g., reprogramming or repositioning) is semantically distinct from "replacement." The match is approximate at best. |
| 230962006 (Adjustment to neurostimulator in cranial nerve) | is related to | AAN.KA.AA (Replacement of cranial nerve device) | ICHI does not have a distinct code for adjusting (reprogramming or repositioning) a neurostimulator in a cranial nerve; AAN.KA.AA is the most relevant code in the cranial nerve device family, but "replacement" does not accurately capture the concept of adjustment/reprogramming of an existing device. |
| 178191002 (Adjustment to origin of tendon or muscle) | is related to | MRT.LJ.AA (Tendon transfer or transplantation of unspecified site) | Adjusting the origin of a tendon or muscle involves moving its attachment point, which is functionally closest to tendon transfer/transplantation in ICHI; however, "transfer" implies moving the entire tendon to a new insertion, while origin adjustment is a more limited re-anchoring procedure, making this an approximate rather than equivalent match. |
| 1285290008 (Administration into urinary bladder via intravesical route) | is related to | DTB.DB.AD (Intravesical administration of immunological agent) | The SNOMED concept describes intravesical drug administration as a general route (any substance), while the only ICHI code for intravesical administration is specifically scoped to immunological agents (e.g., BCG), making it too narrow. The route matches exactly but the substance type does not, so this is a related-but-not-equivalent match; PZA.DB.AZ (pharmacotherapy, route not specified) is even further from the mark. |
| 712753009 (Administration of chemotherapeutic agent into urinary bladder via intravesical route) | is related to | DTB.DB.AD (Intravesical administration of immunological agent) | ICHI has a specific intravesical administration code but it is restricted to immunological agents (e.g., BCG), whereas the SNOMED concept refers to chemotherapeutic agents (e.g., mitomycin C); the route and anatomical target match exactly but the substance axis differs, making this a related-but-not-equivalent mapping. |
| 787016008 (Administration of influenza vaccine via nasal route) | is related to | DTB.VD.AC (Oral vaccination) | ICHI has only two route-specific vaccination codes — oral (AC) and percutaneous (AE); intranasal delivery is neither oral nor percutaneous, and no nasal vaccination code exists in ICHI. Oral vaccination is the closest available code in terms of being a non-parenteral, mucosal route, but it does not accurately represent nasal administration. |
| 1255879001 (Administration of nitric oxide) | is related to | PZA.DC.AC (Inhalational anaesthesia) | Nitric oxide is administered exclusively by inhalation, but its purpose is vasodilation/pulmonary hypertension management rather than anaesthesia, so PZA.DC.AC is only tangentially related via shared route. No ICHI code exists for inhaled vasoactive gas administration; the oxygen therapy code PZA.DD.AC is similarly misaligned by intent, making this a related-but-not-equivalent match at best. |
| 305226003 (Admission by Accident and Emergency doctor) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not have a concept for hospital admission initiated by a specific type of clinician or from a specific care setting such as Accident and Emergency. UEP.TI.ZZ is the closest related concept, capturing the act of directing a patient to a health provider, but it does not convey the inpatient admission context or the A&E origin encoded in the SNOMED concept. |
| 305327009 (Admission by agency nurse) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept of hospital admission by a specific clinician role or employment type. "Referral to health provider" (UEP.TI.ZZ) is the closest available code, representing the administrative act of directing a patient to a provider, but does not encode the inpatient admission context or the agency-nurse role. Aligned with rows 8233, 8235–8239 (admission-by-role concepts). |
| 305227007 (Admission by anesthetist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept of hospital admission by a specific specialty. "Referral to health provider" (UEP.TI.ZZ) is the closest available code, capturing the administrative act of directing a patient to a provider, but it does not encode the inpatient admission context or the anesthetist role. |
| 305262002 (Admission by cardiologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no specialty-specific admission codes; "Referral to health provider" (UEP.TI.ZZ) is the closest structural equivalent, representing direction of a patient to a health provider, but does not capture the inpatient admission or cardiology specialty context. |
| 305263007 (Admission by care of the elderly physician) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no admission or geriatric specialty codes; "Referral to health provider" (UEP.TI.ZZ) is the nearest available code representing an administrative act of patient direction to a provider, but lacks the inpatient admission and care-of-the-elderly specialty dimensions. |
| 305264001 (Admission by chest physician) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not encode hospital admission or respiratory/chest specialty encounters; "Referral to health provider" (UEP.TI.ZZ) approximates the administrative act of patient routing to a provider but omits the inpatient and pulmonology specialty specificity. |
| 305261009 (Admission by clinical allergist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no admission or allergy specialty codes; "Referral to health provider" (UEP.TI.ZZ) is the best available code representing the act of directing a patient to a health provider, but does not encode the inpatient admission setting or the clinical allergist role. |
| 307064007 (Admission by clinical hematologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no specialty-specific admission codes; "Referral to health provider" (UEP.TI.ZZ) is the closest available code, capturing the administrative act of directing a patient to a provider, but does not encode the inpatient admission setting or the clinical hematology specialty. Aligned with surrounding admission-by-role rows. |
| 305267008 (Admission by clinical immunologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no specialty-specific admission codes; "Referral to health provider" (UEP.TI.ZZ) is the closest available code, capturing the administrative act of directing a patient to a provider, but does not encode the inpatient admission setting or the clinical immunology specialty. Aligned with surrounding admission-by-role rows. |
| 305268003 (Admission by clinical neurophysiologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no specialty-specific admission codes; "Referral to health provider" (UEP.TI.ZZ) is the closest available code, capturing the administrative act of directing a patient to a provider, but does not encode the inpatient admission setting or the clinical neurophysiology specialty. Aligned with surrounding admission-by-role rows. |
| 305228002 (Admission by clinical oncologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no specialty-specific admission codes; "Referral to health provider" (UEP.TI.ZZ) is the closest available code, capturing the administrative act of directing a patient to a provider, but does not encode the inpatient admission setting or the clinical oncology specialty. Aligned with surrounding admission-by-role rows. |
| 305269006 (Admission by clinical pharmacologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no specialty-specific admission codes; "Referral to health provider" (UEP.TI.ZZ) is the closest available code, capturing the administrative act of directing a patient to a provider, but does not encode the inpatient admission setting or the clinical pharmacology specialty. Aligned with surrounding admission-by-role rows. |
| 305239004 (Admission by family planning doctor) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept for hospital admission initiated by a specific clinician type; "Referral to health provider" (UEP.TI.ZZ) is the closest administrative health-services act, but it describes a referral rather than an inpatient admission and does not capture the family planning specialty dimension. |
| 305274003 (Admission by gastroenterologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept for admission by a named specialist; "Referral to health provider" (UEP.TI.ZZ) is the nearest administrative act in the health services block, but it represents a referral rather than a specialty-specific inpatient admission and lacks any gastroenterology dimension. |
| 305329007 (Admission by general nurse) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not represent hospital admission events differentiated by the admitting clinician's role or profession; "Referral to health provider" (UEP.TI.ZZ) is the nearest health-services administrative concept but covers referral rather than nurse-initiated inpatient admission. |
| 305275002 (Admission by general physician) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no admission-by-clinician concept; "Referral to health provider" (UEP.TI.ZZ) is the closest administrative health-services act available, but it does not reflect the inpatient admission context or the general physician specificity of the SNOMED concept. |
| 305276001 (Admission by genitourinary medicine physician) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept for specialty-specific inpatient admission; "Referral to health provider" (UEP.TI.ZZ) is the nearest health-services administrative act, but it describes referral rather than admission and carries no genitourinary medicine specialty dimension. |
| 305330002 (Admission by mental health nurse) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no specialty-specific admission codes; "Referral to health provider" (UEP.TI.ZZ) is the closest available code, capturing the administrative act of directing a patient to a provider, but does not encode the inpatient admission setting or the mental health nurse role. Aligned with surrounding admission-by-role rows. |
| 305279008 (Admission by nephrologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no specialty-specific admission codes; "Referral to health provider" (UEP.TI.ZZ) is the closest available code, capturing the administrative act of directing a patient to a provider, but does not encode the inpatient admission setting or the nephrology specialty. Aligned with surrounding admission-by-role rows. |
| 305280006 (Admission by neurologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no specialty-specific admission codes; "Referral to health provider" (UEP.TI.ZZ) is the closest available code, capturing the administrative act of directing a patient to a provider, but does not encode the inpatient admission setting or the neurology specialty. Aligned with surrounding admission-by-role rows. |
| 305281005 (Admission by nuclear medicine physician) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no specialty-specific admission codes; "Referral to health provider" (UEP.TI.ZZ) is the closest available code, capturing the administrative act of directing a patient to a provider, but does not encode the inpatient admission setting or the nuclear medicine specialty. Aligned with surrounding admission-by-role rows. |
| 305333000 (Admission by nurse practitioner) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no specialty-specific admission codes; "Referral to health provider" (UEP.TI.ZZ) is the closest available code, capturing the administrative act of directing a patient to a provider, but does not encode the inpatient admission setting or the nurse practitioner role. Aligned with surrounding admission-by-role rows. |
| 305334006 (Admission by nursing auxiliary) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept for hospital admission; the closest is "Referral to health provider" (UEP.TI.ZZ), which captures the administrative act of directing a patient to a health service. The SNOMED concept specifies the admitting role (nursing auxiliary), a granularity absent from ICHI. |
| 305249001 (Admission by obstetrician and gynecologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept for hospital admission; "Referral to health provider" (UEP.TI.ZZ) is the closest analog as an administrative health-service act. The SNOMED concept's specificity regarding the admitting specialty (obstetrics and gynecology) is not captured in ICHI. |
| 305252009 (Admission by occupational health physician) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept for hospital admission; "Referral to health provider" (UEP.TI.ZZ) is the nearest code in the health services domain. The occupational health physician specificity and the distinction between admission and referral mean these concepts are related but not equivalent. |
| 305248009 (Admission by pain management specialist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept for hospital admission; "Referral to health provider" (UEP.TI.ZZ) is the closest code in the health services intervention hierarchy. The pain management specialty and the semantic distinction between admission and referral prevent a tighter equivalence. |
| 305284002 (Admission by palliative care physician) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept for hospital admission or for palliative care admission specifically; "Referral to health provider" (UEP.TI.ZZ) is the most semantically proximate code available. The palliative care specialization and the admission-vs-referral distinction make this a related-to rather than equivalent mapping. |
| 305253004 (Admission by pathologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not contain any concept for hospital admission by a named specialty, and there is no pathologist-specific admission code. UEP.TI.ZZ "Referral to health provider" is the closest available concept, covering the act of directing a patient to a health provider, but it neither captures the inpatient admission context nor the pathologist role. |
| 305243000 (Admission by pediatrician) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI contains no specialty-specific admission codes and no pediatrician-specific admitting action. UEP.TI.ZZ "Referral to health provider" is the nearest structural analog, covering the organizational act of directing a patient to a provider, but it does not represent inpatient admission or the pediatrician specialty. |
| 305285001 (Admission by psychiatrist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept for psychiatric inpatient admission or admission by a psychiatrist specifically. UEP.TI.ZZ "Referral to health provider" covers the broader administrative act of directing a patient to a health provider but is not equivalent to a formal psychiatric admission. |
| 305292006 (Admission by radiologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not model hospital admission by specialty and has no radiologist-specific admitting code. UEP.TI.ZZ "Referral to health provider" is the closest concept in scope — an organizational act linking a patient to a provider — but does not convey the inpatient admission or the radiologist role. |
| 305283008 (Admission by rehabilitation physician) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no code for inpatient admission by a rehabilitation physician or any equivalent specialty-specific admission concept. UEP.TI.ZZ "Referral to health provider" is the nearest available code, representing a general organizational referral action, but it lacks the admission context and the rehabilitation medicine specialty dimension. |
| 305282003 (Admission by rheumatologist) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no concept for hospital admission by a specific specialist type; the closest available code is "Referral to health provider," which captures the administrative act of directing a patient to a health provider, but does not represent admission specifically or the rheumatology specialty. |
| 305332005 (Admission by sick children's nurse) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI contains no concept for admission by a specific nursing role such as a sick children's nurse; "Referral to health provider" is the nearest structural analog in the health services section, but it differs in both the type of health worker performing it and the specific administrative act (admission vs. referral). |
| 305293001 (Admission by surgeon) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not classify hospital admission by surgical specialty; "Referral to health provider" is the closest analog available, capturing a provider-initiated administrative act directing a patient into care, though the specific clinical role and the act of admission are not represented. |
| 281685003 (Admission for care) | is related to | UEP.RG.ZZ (Providing health services, systems and policies) | ICHI has no code for the act of hospital admission as an administrative event; "Providing health services, systems and policies" is the closest available match in the health services block, capturing the general notion of delivering care, but it is far broader and does not represent the specific administrative act of admitting a patient for care. |
| 305349003 (Admission to department) | is related to | UEP.RG.ZZ (Providing health services, systems and policies) | ICHI does not encode admission to a specific hospital department as a discrete category. "Providing health services, systems and policies" (UEP.RG.ZZ) is the closest available code, capturing the administrative/organisational dimension of providing health services, but does not encode the inpatient admission act per se. Aligned with row 8270 (281685003 "Admission for care"). |
| 305336008 (Admission to hospice) | is related to | UEP.RG.ZZ (Providing health services, systems and policies) | ICHI does not encode hospice admission or end-of-life placement as a discrete category. "Providing health services, systems and policies" (UEP.RG.ZZ) is the closest available code at the health-services/administrative level, but does not encode the hospice setting or the admission act specifically. Aligned with row 8270 (281685003 "Admission for care"). |
| 185659008 (Adult abnormal - 1st recall) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | This SNOMED concept describes an administrative follow-up encounter triggered by an abnormal result — a workflow/scheduling event rather than a clinical procedure. ICHI has no code for recall encounters; PZB.ZY.ZY (other health management encounter, NEC) is the closest available category covering non-specific whole-person encounters, but it only loosely matches the administrative recall context. |
| 185660003 (Adult abnormal - 2nd recall) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | Identical reasoning to the 1st recall — this is a second administrative recall attempt following an abnormal finding. ICHI does not differentiate recall attempts or ordinal follow-up encounters, so PZB.ZY.ZY is the same best-available approximation. |
| 185661004 (Adult abnormal - 3rd recall) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | Same reasoning as the 1st and 2nd recall concepts — a third administrative follow-up attempt after an abnormal result has no specific ICHI counterpart, and PZB.ZY.ZY is the closest whole-person encounter category available. |
| 308431000 (Adult immunization recall) | is related to | VDA.VF.ZZ (Alert concerning immunisation behaviours) | An immunization recall is a public-health-style outreach action to prompt individuals who are due or overdue for vaccination; VDA.VF.ZZ (Alert concerning immunisation behaviours) is the closest ICHI concept as it represents a targeted communication aimed at influencing immunisation uptake, though "alert" has a broader population-level connotation rather than individual patient recall. |
| 17228008 (Advancement of leaflet of heart valve) | is related to | BlockL4-HDE (Interventions on heart valves) | No ICHI code captures leaflet advancement specifically across all valves; individual valve repair/reconstruction codes (e.g. HDF.MK.AA, HDE.MK.AA) do not specify the advancement technique for a leaflet, and none cover all heart valves together. The block BlockL4-HDE groups all heart valve interventions and is the closest structural match, but it is a non-assignable block and far broader than the specific SNOMED procedure. |
| 81570004 (Advancement of tendon) | is related to | MRT.LK.AA (Lengthening of tendon of unspecified site) | ICHI has no dedicated "advancement of tendon" code; advancement is a specific technique where a tendon insertion is moved to a new attachment site, which is mechanically distinct from lengthening (LK) or transfer/transplantation (LJ). The closest structural analogue across the unspecified-site tendon block is lengthening, but the procedural intent differs enough that only a relatedto equivalence is warranted. |
| 396081009 (Adverse drug reaction prevention management) | is related to | UAC.PN.ZZ (Advising about medications) | ICHI contains no specific code for adverse drug reaction prevention management; the closest available code is "Advising about medications" (UAC.PN.ZZ), which covers medication-related advisory interventions, but does not specifically encode the prevention or management of adverse drug reactions. |
| 223412000 (Advice about efficacy of treatment) | is related to | UAC.PN.ZZ (Advising about medications) | ICHI has no code specifically for advice about treatment efficacy; UAC.PN.ZZ captures medication-focused advising but is too narrow (limited to medications rather than treatment in general), and the broader ICHI "advising" codes are each anchored to specific body functions or body systems rather than treatment efficacy as a concept. This is therefore only relatedly matched. |
| 139451000119107 (Aftercare for healing osteoporotic fracture) | is related to | MT2.PG.ZZ (Assisting and leading exercise for functions of joints and bones, not elsewhere classified) | ICHI has no dedicated aftercare or post-fracture management concept; MT2.PG.ZZ represents guided therapeutic exercise targeting joint and bone functions, which is the closest functional rehabilitation activity performed during fracture aftercare, but does not capture the full scope of aftercare (monitoring, wound review, immobilisation management) nor the osteoporotic aetiology. |
| 139471000119103 (Aftercare for osteoporotic fracture of lower limb) | is related to | MT2.PG.ZZ (Assisting and leading exercise for functions of joints and bones, not elsewhere classified) | As with the parent concept, ICHI lacks a site-specific fracture aftercare code; MT2.PG.ZZ covers therapeutic exercise for joint and bone functions generally, capturing the rehabilitation component but not the lower-limb specificity, the osteoporotic context, or the full aftercare episode. |
| 139501000119109 (Aftercare for osteoporotic fracture of vertebra) | is related to | MT2.PG.ZZ (Assisting and leading exercise for functions of joints and bones, not elsewhere classified) | ICHI provides no vertebra-specific fracture aftercare code; MT2.PG.ZZ is the nearest functional rehabilitation concept targeting joint and bone functions, but it does not encode the vertebral site, osteoporotic cause, or the comprehensive post-fracture management episode implied by the SNOMED concept. |
| 139481000119100 (Aftercare for osteoporotic fracture of wrist) | is related to | MT2.PG.ZZ (Assisting and leading exercise for functions of joints and bones, not elsewhere classified) | No wrist-specific fracture aftercare concept exists in ICHI; MT2.PG.ZZ captures the therapeutic exercise dimension of wrist fracture rehabilitation but omits the wrist-specific anatomy, osteoporotic aetiology, and the broader management activities (cast removal, physiotherapy referral, occupational therapy) that constitute aftercare. |
| 372918000 (Age-specific patient education) | is related to | VFS.PM.ZZ (Education about improving health literacy) | ICHI has no concept of age-tailored or patient-targeted education; VFS.PM.ZZ (education to improve health literacy) is the closest population-level educational intervention in ICHI but is broader and focuses on health literacy rather than the age-stratified, patient-directed educational approach encoded in the SNOMED concept. |
| 385802008 (Allergic reaction control management) | is related to | DTB.AA.ZZ (Assessment of immunological system functions) | No ICHI code specifically represents the management of allergic reaction control; DTB.AA.ZZ (assessment of immunological system functions) is the closest available code in the immunological domain but covers assessment rather than ongoing management, making this only a related match rather than a direct equivalence. |
| 385800000 (Allergic reaction management) | is related to | DTB.AA.ZZ (Assessment of immunological system functions) | ICHI has no dedicated code for allergic reaction management as a coordinated clinical activity; DTB.AA.ZZ sits in the correct immunological system domain but represents assessment rather than management, and the broader management codes (UAC medicaments block) are too generic and non-immunological. This is therefore only a related match. |
| 236923007 (Ampullary uterotubal implantation) | is related to | NMC.ML.AA (Salpingoplasty) | "Ampullary uterotubal implantation" is a surgical procedure to reimplant the fallopian tube at the ampullary portion into the uterus. ICHI has no specific code for tubal reimplantation; NMC.ML.AA (Salpingoplasty) is the closest available code, but it is broader and does not capture the specific ampullary implantation site or the uterotubal junction aspect. |
| 405249000 (Amputation of crown of tooth with root retention) | is related to | KAE.ML.AC (Root canal therapy) | "Amputation of crown of tooth with root retention" (coronectomy) is a procedure to remove the crown while leaving the root in situ; ICHI does not have a dedicated coronectomy code. KAE.ML.AC is the closest dental code involving deliberate root management, but the procedures are distinct, making this a related but inexact match. |
| 180352008 (Anesthetic without surgery) | is related to | PZA.DC.AF (Intravenous anaesthesia) | ICHI has no route-unspecified or "standalone" anaesthesia code; the only assignable whole-body anaesthesia codes are PZA.DC.AC (inhalational) and PZA.DC.AF (intravenous), both route-specific. The SNOMED concept focuses on the absence of concurrent surgery rather than the route, so PZA.DC.AF is listed as the closest related anchor. |
| 422550004 (Anger management surveillance) | is related to | AUD.AA.ZZ (Assessment of emotional functions) | ICHI has no anger management surveillance code; population-level surveillance codes concern environmental or behavioural public health topics, not anger. AUD.AA.ZZ (Assessment of emotional functions) is the nearest individual-level intervention, but surveillance implies ongoing monitoring rather than a discrete assessment. |
| 50050151000188103 (Anthraquinone therapy) | is related to | KTK.SC.ZZ (Stimulation for defaecation functions) | Anthraquinone therapy is the administration of stimulant laxatives (e.g. senna, cascara) to promote defaecation; ICHI has no code for oral drug administration to stimulate bowel function, but KTK.SC.ZZ is the closest functional equivalent covering the physiological intent. The ICHI code is intervention-type agnostic and does not capture the pharmacological mechanism. |
| 183405004 (Anti-criminal psychotherapy) | is related to | VBC.PQ.ZZ (Psychotherapy for community violence behaviours) | Anti-criminal psychotherapy targets individuals with criminal/violent behaviour patterns; the closest ICHI category is psychotherapy directed at community violence behaviours. The match is relatedto rather than equivalent because ICHI frames the target as a community-level behaviour domain rather than the individual forensic/offender context implied by the SNOMED concept. |
| 443761007 (Anticipatory palliative care) | is related to | PZB.TB.ZZ (Individualised planning) | There is no ICHI code for palliative care or anticipatory/advance care planning as a distinct concept; PZB.TB.ZZ is the closest structural match for the proactive, person-centred planning component of anticipatory palliative care, but it does not capture the palliative or end-of-life dimension. |
| 239615009 (Application of additional component to external fixator frame) | is related to | MDB.LC.AE (Percutaneous application of external fixator device to shoulder region) | ICHI has no general code for adding a component to an existing external fixator frame regardless of body region — the only external fixator code found is specific to the shoulder and percutaneous application of the initial device. The SNOMED concept is a body-site-agnostic modification to an in-situ fixator, which does not map cleanly to this shoulder-specific initial-application code; they are related within the external fixator domain but not equivalent. |
| 233234007 (Application of band to systemic to pulmonary artery shunt) | is related to | HID.LL.AA (Banding of pulmonary artery) | The SNOMED concept describes placing a band on an existing systemic-to-pulmonary shunt (a prosthetic conduit such as a Blalock-Taussig shunt) to restrict flow, which is distinct from primary pulmonary artery banding; HID.LL.AA captures the banding action on pulmonary vasculature and is the closest ICHI code, but it targets the native pulmonary artery rather than a shunt, making this a related rather than equivalent match. |
| 360030002 (Application of device) | is related to | PZX.DL.AE (Insertion of a device, not elsewhere classified) | ICHI does not have a generic "application of device" code; PZX.DL.AE (percutaneous insertion of a device, NEC) is the closest generic device-placement code but differs in implying a percutaneous route and an internal device, whereas the SNOMED concept is a high-level category encompassing any device application to any body site by any means. |
| 239642005 (Application of traction using slings) | is related to | MBZ.LC.AE (Direct or skeletal traction to the spine) | ICHI contains only one explicit traction code (MBZ.LC.AE), which is restricted to direct or skeletal traction of the spine; the SNOMED concept describes skin (sling) traction applicable to any body region, making this only a related match rather than an equivalent or hierarchical one. |
| 304992005 (Application to periodontal pocket) | is related to | KAG.DC.AC (Topical application of anaesthetic to gingiva) | ICHI lacks a code for application of a substance (e.g. antibiotic or antiseptic) specifically to a periodontal pocket; KAG.DC.AC is the closest code, targeting the gingiva (gum) via topical application, but it is restricted to anaesthetic agents rather than the broader range of agents applied to periodontal pockets, making it only a related match. |
| 179207009 (Apply balanced skeletal traction) | is related to | MBZ.LC.AE (Direct or skeletal traction to the spine) | MBZ.LC.AE is the only explicit skeletal traction code in ICHI but is scoped to the spine, whereas balanced skeletal traction (e.g. Thomas splint with Pearson attachment) is typically applied to a limb fracture; the shared mechanism of skeletal traction makes this a related match, but the body-site mismatch prevents a closer equivalence. |
| 104148009 (Apt test (hemoglobin), stool) | is related to | PZX.AH.XG (Specimen collection of faeces) | The Apt test is performed on a stool specimen to distinguish fetal from maternal hemoglobin via alkali denaturation; ICHI captures only the specimen collection step and not the chemical discriminatory assay itself. No ICHI code exists for the full Apt test procedure, making this a related but non-equivalent match. |
| 308271007 (Arrangement of care procedure) | is related to | UEP.TI.ZZ (Referral to health provider) | "Arrangement of care" is a broad administrative/organisational act of organising or coordinating care for a patient, which is most closely related to referral to a health provider in ICHI (an intervention on health services targeting care linkage). The mapping is approximate; ICHI lacks a precise code for general care arrangement/coordination. |
| 13757009 (Arrest of bone growth of humerus) | is related to | MEB.LL.AA (Limb shortening procedures of humerus) | ICHI has no epiphysiodesis code for the humerus; MEB.LL.AA covers limb shortening of the humerus and is functionally related, but it encompasses a broader category of shortening techniques beyond physeal arrest specifically. |
| 66364002 (Arrest of bone growth of radius) | is related to | MFB.LL.AA (Limb shortening procedures on bone of forearm) | No epiphysiodesis code exists for the radius in ICHI; MFB.LL.AA is the closest available code covering limb shortening of forearm bones (radius and ulna combined), making it related but neither anatomically specific nor procedurally precise. |
| 25433009 (Arrest of bone growth of ulna) | is related to | MFB.LL.AA (Limb shortening procedures on bone of forearm) | No epiphysiodesis code exists for the ulna in ICHI; MFB.LL.AA covers limb shortening of forearm bones generally but does not specify epiphysiodesis as the technique nor the ulna as the specific bone. |
| 53494000 (Arterial cannulization with cardiac output) | is related to | IZA.AB.AF (Intravascular pressure measurement of artery, not elsewhere classified) | ICHI has no code for arterial cannulation per se; IZA.AB.AF represents invasive intra-arterial monitoring (intravascular pressure measurement), which is functionally related to arterial cannulation for haemodynamic/cardiac output assessment, but does not capture the cannulation act itself or explicitly specify cardiac output measurement. |
| 252798006 (Arteriovenous aneurysm operation) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | ICHI has no code specifically for an arteriovenous aneurysm; IZA.SN.AF (Management of arteriovenous shunt) is the only ICHI code explicitly addressing an abnormal arteriovenous communication, which is conceptually related but differs in that an AV aneurysm involves aneurysmal dilation and "management of arteriovenous shunt" primarily denotes shunt/access management rather than aneurysm repair. |
| 711528006 (Arthroscopic drilling of osteochondral lesion of elbow) | is related to | MEJ.JG.AB (Arthroscopic debridement of elbow joint) | ICHI has no elbow cartilage repair code, so there is no equivalent to ankle's MNC.MK.AB for the elbow. Arthroscopic debridement of the elbow joint is the closest available arthroscopic procedure in the elbow joint block, but debridement is a different action from drilling for osteochondral repair, making this a related rather than equivalent match. |
| 179891009 (Arthroscopic excision of implanted ligament) | is related to | MMJ.JD.AB (Arthroscopic removal of internal device or foreign body of knee joint) | An implanted ligament (graft or prosthetic) is functionally an internal device within a joint, so removal aligns best with ICHI's "removal of internal device" category. The SNOMED concept is joint-agnostic while ICHI codes are joint-specific, and the knee joint code is used as the representative match, making this a related rather than equivalent mapping. |
| 179890005 (Arthroscopic excision of natural ligament) | is related to | MML.JJ.AB (Arthroscopic partial excision of ligament of knee) | ICHI's arthroscopic ligament excision codes are all joint-specific, and the SNOMED concept does not specify which joint or ligament. The knee ligament code is the best available representative, but the joint-specificity mismatch and the "partial excision" qualifier (versus total excision of a natural ligament) make this a related rather than equivalent mapping. |
| 311447002 (Arthroscopic reduction of fracture) | is related to | MMJ.LD.AB (Arthroscopic reduction of knee joint) | ICHI encodes arthroscopic reduction per specific joint (shoulder, elbow, knee, ankle, etc.) rather than as a fracture-specific procedure, and the SNOMED concept does not specify which joint or that the target is a joint rather than a bone; MMJ.LD.AB is the closest structural match but adds knee specificity absent in the SNOMED term and does not convey the fracture context. |
| 301037004 (Arthroscopic removal of loose body from joint) | is related to | MMJ.JD.AB (Arthroscopic removal of internal device or foreign body of knee joint) | ICHI groups loose body removal under "removal of internal device or foreign body" per joint site; the SNOMED concept is unspecified as to which joint, while the ICHI code is knee-specific, and ICHI's title conflates devices and foreign bodies with loose bodies, making this a related rather than equivalent match. |
| 438632004 (Arthroscopy and drilling of knee) | is related to | MMJ.JG.AB (Arthroscopic debridement of knee joint) | ICHI has no code for drilling or microfracture of the knee joint; drilling is a specific bone-perforating technique for cartilage repair that is not represented in the classification. Arthroscopic debridement is the closest available arthroscopic procedure on the knee joint but is a different action. |
| 61206002 (Arthrotomy of spine) | is related to | MRJ.FA.AA (Arthrotomy of unspecified site) | ICHI does not contain an arthrotomy code specifically for spinal joints (facet joints); the vertebral column section covers bone and disc interventions only. The NEC residual code for arthrotomy of an unspecified joint site is the closest available match, but the anatomical specificity to the spine is lost. |
| 86046007 (Arthrotomy of sternoclavicular joint for infection with exploration) | is related to | MRJ.FA.AA (Arthrotomy of unspecified site) | ICHI has no sternoclavicular-specific arthrotomy code — the sternoclavicular joint is not represented in the shoulder joint block, and no joint block for the clavicular articulations exists. MRJ.FA.AA captures the arthrotomy procedure type but loses the anatomical site, infection context, and exploration qualifier entirely. |
| 43578004 (Arthrotomy of temporomandibular joint) | is related to | MRJ.FA.AA (Arthrotomy of unspecified site) | ICHI has no TMJ-specific arthrotomy (FA action) code; the MAJ block contains drainage, arthroscopic release, and reduction codes for the TMJ, but not open arthrotomy. MRJ.FA.AA preserves the arthrotomy procedure type but sacrifices the specific TMJ anatomy, making it only relatedly equivalent. |
| 238316008 (Aspiration of chronic ambulatory peritoneal dialysis catheter) | is related to | KMA.JA.AE (Percutaneous irrigation of peritoneal cavity) | No ICHI code captures catheter aspiration for patency/clearance of a CAPD catheter specifically; the closest procedural action in the peritoneal cavity under percutaneous approach is irrigation, which shares the same route and cavity but is a different action (irrigation vs. aspiration) and does not reference the catheter. |
| 711451009 (Assessment for nasogastric tube insertion) | is related to | KBF.DL.AC (Insertion of device into stomach) | ICHI does not contain a specific code for pre-procedure assessment for nasogastric tube insertion; the closest procedural codes describe the tube insertion itself (KBF.DL.AC). The SNOMED concept is a preparatory assessment rather than the tube insertion procedure, and no ICHI assessment code targeting feeding tube suitability exists. |
| 710835000 (Assessment of attitude toward medication management) | is related to | VAD.AA.ZZ (Assessment of pharmaceutical use behaviours) | VAD.AA.ZZ covers assessment of behaviours related to pharmaceutical (medication) use, which is the closest ICHI concept to assessing a patient's attitude toward managing their medications. However, ICHI frames this as behaviours rather than attitude, making this a related rather than equivalent match. |
| 1148817001 (Assessment of barriers in housing insecurity care plan) | is related to | UEE.AA.ZZ (Assessment of housing services, systems and policies) | ICHI has no code for assessing barriers within a care plan, nor specifically for housing insecurity; UEE.AA.ZZ is the closest available code, covering assessment of housing-related services and systems. The SNOMED concept is far more specific (barriers in a care plan for housing insecurity), so the match is relational rather than equivalent. |
| 1148813002 (Assessment of barriers in inadequate housing care plan) | is related to | UEE.AA.ZZ (Assessment of housing services, systems and policies) | As with 1148817001, ICHI lacks a specific code for assessing barriers in a care plan for inadequate housing; UEE.AA.ZZ is the best available housing-domain assessment code but is substantially broader and does not capture the care plan or barriers framing of the SNOMED concept. |
| 385912002 (Assessment of care of pressure injury) | is related to | LTD.AA.ZZ (Assessment of repair functions of the skin) | ICHI has no specific code for assessment of pressure injury (decubitus ulcer) care. LTD.AA.ZZ covers assessment of the skin's repair functions, which is the closest functional correlate — pressure injuries are fundamentally failures of skin repair — but the SNOMED concept is specifically about evaluating ongoing care management of a named wound type. |
| 225375009 (Assessment of client independence) | is related to | SM1.AA.ZZ (Assessment of self care, unspecified) | ICHI has no code specifically for "client independence," a broad nursing/rehabilitation concept encompassing ability to function autonomously across life domains. SM1.AA.ZZ (assessment of self care) captures the most clinically overlapping domain within ICHI's activities-and-participation chapter, but independence spans beyond self care alone (e.g., mobility, domestic life). |
| 713131007 (Assessment of dizziness) | is related to | CTE.AA.ZZ (Assessment of vestibular functions) | Dizziness most commonly arises from vestibular dysfunction, making CTE.AA.ZZ the closest ICHI candidate, but dizziness is a symptom that can have non-vestibular causes (neurological, cardiovascular) and ICHI has no dedicated code for dizziness as a symptom. The match is related but not semantically equivalent. |
| 450332002 (Assessment of eligibility for clinical trial) | is related to | PZB.AA.ZZ (General health assessment) | Clinical trial eligibility assessment involves a comprehensive health evaluation, which PZB.AA.ZZ captures at a general level. However, ICHI does not represent the administrative/research purpose (trial enrolment screening) that is central to the SNOMED concept, making this a related rather than equivalent match. |
| 710854000 (Assessment of family process) | is related to | SSJ.AA.ZZ (Assessment of engaging in family relationships) | SSJ.AA.ZZ is the closest ICHI code, covering assessment of how a person engages in family relationships; however, "family process" in the SNOMED sense refers to the functioning and dynamics of the family unit as a whole system, which is a broader and structurally different concept than individual engagement in family relationships. |
| 710852001 (Assessment of financial status) | is related to | SVG.AA.ZZ (Assessment of engaging in economic self-sufficiency) | SVG.AA.ZZ assesses a person's ability to engage in economic self-sufficiency, which is conceptually adjacent to financial status but frames it as an activity/participation dimension rather than a direct appraisal of financial resources or circumstances; the two concepts overlap substantially but are not semantically equivalent. |
| 866024000 (Assessment of risk for accidental opioid overdose) | is related to | VAC.AA.ZZ (Assessment of illicit drug use behaviours) | ICHI has no code targeting opioid-specific overdose risk; VAC.AA.ZZ is the closest available code covering assessment in the illicit/substance use domain, but opioids may be prescribed rather than illicit, and the SNOMED concept is specifically about overdose risk rather than drug use behaviour in general. |
| 710563008 (Assessment of risk for impaired nutritional status) | is related to | ETB.AA.ZZ (Assessment of general metabolic functions) | ICHI has no code specifically for nutritional status risk screening; ETB.AA.ZZ covers assessment of general metabolic functions, which is the closest functional domain to nutritional status, but it is broader and does not capture the risk-screening intent or the digestive/nutrition-specific focus of the SNOMED concept. |
| 710557004 (Assessment of self-efficacy) | is related to | ATI.AA.ZZ (Assessment of energy and drive functions) | Self-efficacy (a person's belief in their ability to perform health behaviours) does not map directly to any ICHI category; ATI.AA.ZZ covers energy and drive functions, which in ICF/ICHI terminology includes motivation and internal drive — the closest ICHI concept to the psychological construct of self-efficacy — but the semantic overlap is approximate rather than equivalent. |
| 781146004 (Assessment using AIDS Risk Behavior Knowledge Test) | is related to | VEF.AC.ZZ (Test of sexual behaviours) | The AIDS Risk Behavior Knowledge Test (ARBKT) evaluates knowledge about HIV/AIDS transmission risks and sexual behaviours; "Test of sexual behaviours" is the most relevant ICHI code, but the SNOMED concept focuses specifically on knowledge about AIDS risk rather than an assessment of behaviours themselves, making this a related but not equivalent match. |
| 725817006 (Assessment using Assessment of Occupational Functioning Modified Interest Checklist) | is related to | SU2.AA.ZZ (Assessment of engaging in work and employment, not elsewhere classified) | The Modified Interest Checklist is a MOHO-based occupational therapy tool assessing interest across leisure, self-care, and work domains — broader than employment alone; SU2.AA.ZZ covers work and employment assessment only, so it is a partial match. No ICHI code covers the full breadth of occupational interest/functioning across life areas as this checklist does. |
| 865916003 (Assessment using Bakas Caregiving Outcomes Scales) | is related to | UCH.AA.ZZ (Assessment of support from personal care providers and personal assistants) | The Bakas Caregiving Outcomes Scale measures life changes and wellbeing outcomes in informal caregivers; UCH.AA.ZZ addresses assessment of support from personal care providers and is related in scope, but the SNOMED concept targets caregiver outcomes/burden rather than assessing the support system itself, making this a related rather than equivalent match. |
| 1351343009 (Assessment using Breast Imaging and Reporting and Data System) | is related to | LCA.BA.BA (Mammography) | BI-RADS is primarily applied to mammography reporting but also extends to MRI and ultrasound of the breast, so no single imaging code fully captures it; moreover, BI-RADS is a structured reporting/assessment framework applied after imaging rather than the imaging act itself. LCA.BA.BA (Mammography) is the most frequently associated procedure but the relationship is indirect rather than equivalent. |
| 445640007 (Assessment using carers of older people in Europe index) | is related to | UCH.AA.ZZ (Assessment of support from personal care providers and personal assistants) | The COPE Index specifically assesses the experiences and needs of informal carers of older people (a carer-directed instrument), while UCH.AA.ZZ addresses assessment of the support environment provided by personal care providers as perceived by the care recipient. The concepts overlap in subject matter (informal carers) but differ in perspective and purpose, making this a related rather than equivalent mapping. |
| 1367517003 (Assessment using Clavien-Dindo classification) | is related to | PZB.AA.ZZ (General health assessment) | The Clavien-Dindo classification is a grading system for postoperative surgical complications, not a routine clinical assessment or intervention in its own right — it is a documentation and severity-stratification tool applied after surgery. No ICHI code captures complication grading or surgical outcome classification specifically; PZB.AA.ZZ (General health assessment on whole person) is the closest available code but is only relatedly linked, as ICHI does not represent administrative classification acts of this kind. |
| 718582003 (Assessment using Clinical Institute Withdrawal Assessment for Benzodiazepines scale) | is related to | VAC.AA.ZZ (Assessment of illicit drug use behaviours) | The CIWA-B assesses withdrawal severity from benzodiazepines, which are prescribed rather than strictly illicit drugs; VAC.AA.ZZ sits under the substance-related behaviours chapter and is the closest available assessment code, but the mismatch between prescribed CNS depressants and illicit drug use behaviours makes this a related rather than equivalent mapping. |
| 840547006 (Assessment using Columbia-Suicide Severity Rating Scale) | is related to | ATI.AA.ZZ (Assessment of energy and drive functions) | The C-SSRS is a structured interview assessing suicidal ideation intensity and suicidal behaviour; ICHI has no code for suicide risk or self-harm assessment. ATI.AA.ZZ covers the motivational and drive domain of global mental functions — the closest functional overlap — but the match is only relational, as ICHI does not model suicidality assessment as a distinct target. |
| 718319004 (Assessment using Cormack and Lehane System) | is related to | JAN.AE.AC (Laryngoscopy) | The Cormack-Lehane grading system classifies the laryngoscopic view of the glottis obtained during direct laryngoscopy to predict difficult intubation; while the grading is part of laryngoscopy, the SNOMED concept describes applying the classification rather than the laryngoscopy itself, making this a related rather than equivalent match. No ICHI code exists for airway difficulty scoring. |
| 1351342004 (Assessment using Coronary Artery Disease Reporting and Data System) | is related to | HIA.BA.BB (Coronary angiography) | CAD-RADS is a structured reporting framework applied to coronary CT angiography to standardise stenosis grading; the SNOMED concept describes applying the reporting system rather than the imaging procedure itself, but HIA.BA.BB is the closest ICHI concept since CAD-RADS is inherently tied to that investigation. |
| 865992002 (Assessment using Deauville five point scale) | is related to | PZA.BA.BG (Positron emission tomography of whole body) | The Deauville five-point scale is a scoring system applied to interpret FDG-PET/CT imaging results for treatment response in lymphoma — it is not itself a standalone ICHI procedure but an interpretive scale used during whole-body PET. PZA.BA.BG captures the imaging procedure to which the scale is applied, but the Deauville scoring is a reporting/interpretation act rather than the imaging acquisition itself. |
| 713012003 (Assessment using Emergency Severity Index) | is related to | UEP.AA.ZZ (Assessment of health services, systems and policies) | The Emergency Severity Index is a five-level emergency department triage instrument used to classify patient urgency and acuity; ICHI has no dedicated triage or patient acuity code, and UEP.AA.ZZ represents the closest available concept at the organisational/service level, though it is a poor semantic fit for a patient-level clinical triage tool. |
| 446762007 (Assessment using functional analysis of care environments assessment tool) | is related to | SM1.AA.ZZ (Assessment of self care, unspecified) | The FACE tool is a holistic mental health and social care needs assessment covering daily living, self-care, and care setting factors. ICHI does not have a code for care environment assessment or multi-domain needs assessment; SM1.AA.ZZ is related but does not capture the environmental or care-needs analysis dimensions of the FACE tool. |
| 714354001 (Assessment using Group Session Rating Scale) | is related to | SR1.AA.ZZ (Assessment of engaging in interactions and interpersonal relationships, unspecified) | The Group Session Rating Scale is a brief psychotherapy feedback tool measuring the therapeutic alliance and session quality within group interactions; ICHI has no code for therapy outcome or alliance measurement, and the closest related domain is assessment of interpersonal interactions. The match is relatedto rather than wider because the SNOMED concept targets session/alliance quality measurement rather than the functional capacity for interpersonal engagement that the ICHI code covers. |
| 40171000234108 (Assessment using Liver Imaging Reporting and Data System) | is related to | KCA.BA.BH (Magnetic resonance imaging of liver, not elsewhere classified) | LI-RADS (Liver Imaging Reporting and Data System) is a standardised classification/scoring framework applied to liver imaging findings — most commonly CT or MRI — rather than a distinct imaging procedure itself. ICHI codes imaging procedures on the liver (CT, MRI, ultrasound) but has no code for the act of applying a structured reporting framework to interpret liver imaging; KCA.BA.BH is related but does not capture the assessment/classification nature of the concept. |
| 1362107005 (Assessment using Lung Imaging Reporting and Data System) | is related to | JBF.BA.BC (Computerised tomography of lung, not elsewhere classified) | Lung-RADS is a structured assessment/classification framework applied to CT images of the lung for pulmonary nodule management; ICHI captures only the CT imaging act on the lung parenchyma, not the standardised reporting and risk-stratification component that defines this SNOMED concept. |
| 840318003 (Assessment using Modified Rankin Scale) | is related to | MVD.AA.ZZ (Assessment of control of voluntary movement) | The Modified Rankin Scale measures global functional disability and independence after neurological events (particularly stroke), spanning movement, self-care, and social participation — it is not purely a movement assessment. No single ICHI code captures its multi-domain disability/independence scope; "Assessment of control of voluntary movement" (MVD.AA.ZZ) captures the motor component but misses the broader participation and ADL dimensions, making this a related rather than wider match. |
| 765149007 (Assessment using Pocock death from cardiovascular disease risk score) | is related to | HT2.AA.ZZ (Assessment of cardiovascular function, not elsewhere classified) | The Pocock CVD death risk score is a prognostic/risk-stratification tool focused on predicting mortality rather than measuring cardiovascular function per se; no ICHI code for risk scoring or prognostic assessment exists, so the closest available code is the general cardiovascular function assessment, making this a related rather than equivalent match. |
| 719129009 (Assessment using POEM (Patient-Oriented Eczema Measure)) | is related to | PZB.AA.ZZ (General health assessment) | POEM is a patient-reported outcome measure capturing eczema symptom burden; ICHI has no skin-specific assessment or patient-reported symptom measure code, and the best available code is the whole-person general health assessment, which is related but not specifically equivalent. |
| 1303697004 (Assessment using Robson Ten Group Classification System) | is related to | NUG.AA.ZZ (Assessment of functions related to childbirth) | The Robson Ten Group Classification System categorises women giving birth into 10 mutually exclusive groups (based on parity, gestational age, fetal presentation, and onset of labour) primarily for caesarean-section audit and population-level monitoring, not a direct clinical assessment of childbirth function. NUG.AA.ZZ is the closest ICHI concept available in the childbirth domain, but the Robson system is a classification/audit tool rather than a functional assessment, making the match relatedto rather than wider or inexact. |
| 450732000 (Assessment using Rockall score) | is related to | KT2.AC.ZZ (Test of functions of the digestive system, not elsewhere classified) | The Rockall score is a risk-stratification tool for upper gastrointestinal bleeding that combines clinical and endoscopic features to predict mortality and rebleeding risk. ICHI has no specific code for GI risk scoring; KT2.AC.ZZ (Test of functions of the digestive system, NEC) is the best available approximation within the digestive system block, but the Rockall score is a prognostic scoring instrument rather than a functional test, making this a relatedto match. |
| 446356004 (Assessment using role checklist) | is related to | SXB.AA.ZZ (Assessment of engaging in community life) | The Role Checklist is an occupational therapy instrument that identifies an individual's current and desired occupational roles (e.g., worker, caregiver, volunteer, hobbyist) and their perceived value. ICHI has no specific code for occupational role assessment; SXB.AA.ZZ (Assessment of engaging in community life) captures the community participation and social roles dimension most closely, but does not encompass the full scope of the checklist which also covers domestic, leisure, and organisational roles, making this a relatedto match. |
| 445036004 (Assessment using short falls efficacy - international scale) | is related to | AUD.AA.ZZ (Assessment of emotional functions) | The FES-I measures fear of falling and self-efficacy confidence, which is a psychological/emotional construct; ICHI has no falls-efficacy or self-efficacy code, and "Assessment of emotional functions" (AUD.AA.ZZ) is the closest domain, though it does not specifically represent fall-related fear or confidence. |
| 446757006 (Assessment using short health anxiety inventory) | is related to | AUD.AA.ZZ (Assessment of emotional functions) | The SHAI measures cognitive and emotional preoccupation with illness/health anxiety; ICHI contains no health anxiety, hypochondriasis, or somatoform assessment code, and "Assessment of emotional functions" (AUD.AA.ZZ) is the nearest available category within the specific mental functions hierarchy. |
| 714341008 (Assessment using Short Physical Performance Battery) | is related to | MVG.AA.ZZ (Assessment of gait pattern) | The SPPB is a multi-domain battery combining balance, gait speed, and chair-stand tests; ICHI has no composite physical performance battery code, and "Assessment of gait pattern" (MVG.AA.ZZ) captures the gait speed sub-domain but covers only part of the SPPB construct. |
| 714355000 (Assessment using Short Warwick-Edinburgh Mental Well-being Scale) | is related to | AUD.AA.ZZ (Assessment of emotional functions) | SWEMWBS measures positive mental well-being including positive affect and psychological flourishing; ICHI has no mental well-being or positive psychology assessment code, and "Assessment of emotional functions" (AUD.AA.ZZ) is the nearest category, though it does not encompass the full positive well-being construct. |
| 763304000 (Assessment using SINBAD (Site, Ischemia, Neuropathy, Bacterial Infection, Area and Depth) classification) | is related to | LT2.AA.ZZ (Assessment of skin functions, not elsewhere classified) | SINBAD is a multi-dimensional diabetic foot ulcer classification tool covering skin integrity, vascular, neurological, and infectious dimensions; LT2.AA.ZZ (Assessment of skin functions, NEC) captures only the integumentary/skin target and misses the vascular and neuropathy components, making it a related but imprecise match. |
| 273987005 (Surgical procedure on nerve) | is related to | BlockL4-ACA (Interventions on peripheral nervous system) | ICHI has no single block or code spanning all nerve types (cranial, spinal, peripheral); BlockL4-ACA covers peripheral nerves only, excluding cranial and spinal nerves, making it a partial and therefore relatedto match for the broader SNOMED concept. |
| 438782001 (Surgical procedure on pterygopalatine fossa) | is related to | BlockL5-AAN (Interventions on cranial nerve) | ICHI has no code or block for the pterygopalatine fossa as a surgical target; the pterygopalatine ganglion (XA0ER1) exists only as an anatomical extension qualifier. Surgical procedures on this fossa primarily involve the pterygopalatine ganglion, which falls under cranial nerve interventions, making this a related but imprecise match. |
| 128992008 (Surgical removal of foreign body) | is related to | PZX.JD.AE (Percutaneous removal of internal device or foreign body or device, not elsewhere classified) | No single ICHI code exists for generic unspecified-site surgical (open) foreign body removal; ICHI codes foreign body removal by specific anatomical site. PZX.JD.AE is the closest residual/NEC option, but specifies a percutaneous approach and combines device and foreign body removal, making it only relatedly equivalent. |
| 88141006 (Surgical repair and revision of anastomosis) | is related to | KZZ.LB.AA (Anastomosis of intestine, not elsewhere classified) | ICHI has no code specifically for repair or revision of an existing anastomosis; anastomosis codes (LB action) represent creation of a new connection rather than revision of one, and the NEC intestinal code is only one of many organ-specific anastomosis codes — the SNOMED concept spans all body systems. |
| 5648005 (Surgical repair and revision of shunt) | is related to | AAE.KA.AA (Replacement of ventricular device) | ICHI codes shunts primarily by the creation or management of specific shunt types rather than by repair or revision; "Replacement of ventricular device" is the closest available concept, but covers only intracranial ventricular shunts and is a replacement action rather than a repair — the SNOMED concept spans all shunt types across all body systems. |
| 13163006 (Surgical transfer with flap construction) | is related to | LZZ.ML.AA (Skin graft, not elsewhere classified) | ICHI encodes flap types as extension codes (XG9JE8 Pedicle flap, XG1UU3 Local flap, XG1AH4 Free flap) rather than as standalone assignable procedure codes, and the closest assignable category covering skin/soft tissue transfer with flap construction is LZZ.ML.AA; this is approximate since the SNOMED concept emphasises flap construction while the ICHI code is framed around grafting. |
| 225419007 (Surveillance) | is related to | UBC.VC.ZZ (Population public health surveillance) | ICHI's surveillance codes are entirely within the public-health domain (UBC.VC.ZZ being the closest general population-level surveillance category); the bare SNOMED concept "Surveillance" is a highly abstract, context-free term that does not map precisely to any single ICHI code. |
| 386459007 (Sustenance support) | is related to | PZA.DA.ZZ (Administering nutritional requirements, not elsewhere classified) | "Sustenance support" in SNOMED is a broad concept covering assistance with basic nutrition and hydration needs; ICHI's PZA.DA.ZZ captures the clinical administration of nutritional requirements but does not encompass the full social/functional support dimension of sustenance support. |
| 439474005 (Assistance with establishment of personal values) | is related to | ATH.PP.ZZ (Counselling for temperament and personality) | ICHI does not have a specific code for facilitating the establishment of personal values; ATH.PP.ZZ is the closest available code, as personal values are intrinsic to temperament and personality in the ICF/ICHI framework, but "counselling" does not fully capture the facilitative/assistive intent of the SNOMED concept. |
| 265036006 (Attention to artificial voice box in larynx) | is related to | JAN.KA.AD (Endoscopic replacement of laryngeal stent) | "Attention to" an artificial voice box (tracheoesophageal/voice prosthesis) denotes follow-up management of a laryngeal device, but ICHI has no dedicated "management of laryngeal prosthetic device" code; JAN.KA.AD (endoscopic replacement of laryngeal stent) is the closest device-maintenance code for the larynx, though it specifically implies replacement rather than general care. |
| 442258002 (Attention to cemented hybrid prosthetic replacement of knee joint) | is related to | MMJ.KA.AA (Replacement of knee joint device) | "Attention to" a knee prosthesis refers to postoperative follow-up or maintenance care, which does not equate to device replacement; MMJ.KA.AA is the only knee-joint device code with a management/replacement action, and no dedicated "management of knee joint prosthetic device" code exists in ICHI, making this a related but imprecise mapping. |
| 235450004 (Attention to flatus tube) | is related to | KBW.KA.AC (Replacement of rectal tube) | A flatus tube is a rectal tube inserted to relieve intestinal gas, and the closest ICHI code found is KBW.KA.AC (Replacement of rectal tube), which targets the same anatomical site and device type; however, "attention to" a flatus tube (monitoring/care) is not the same as replacing it, and ICHI has no dedicated code for management or monitoring of a rectal/flatus tube, making this only a related match. |
| 762051003 (Attention to hybrid total knee replacement) | is related to | MMJ.KA.AA (Replacement of knee joint device) | "Attention to hybrid total knee replacement" means follow-up care or monitoring of an in-situ knee prosthesis, whereas MMJ.KA.AA specifically denotes replacing/revising the knee joint device rather than managing it; ICHI does not contain a dedicated "management of knee joint device" code analogous to the SN action codes seen for other body sites, making this a related rather than equivalent match. |
| 235446006 (Attention to nasoduodenal tube) | is related to | KBI.DL.AC (Insertion of nasoduodenal tube) | ICHI has a specific nasoduodenal tube code but it covers only initial insertion, whereas "attention to" in SNOMED describes post-placement care (flushing, repositioning, replacement) of an existing tube; no management-of-device code exists for the duodenum in ICHI, making this a related but semantically different match. |
| 762238003 (Attention to nasogastric tube) | is related to | KBF.DL.AC (Insertion of device into stomach) | No nasogastric-specific code or stomach device management code exists in ICHI; KBF.DL.AC addresses insertion of a device into the stomach (the closest structural analog), but "attention to" denotes ongoing tube care rather than initial insertion, representing a meaningful semantic mismatch. |
| 235447002 (Attention to nasojejunal tube) | is related to | KBK.KA.AC (Replacement of tube or enterostomy device of small intestine, not elsewhere classified) | No nasojejunal-specific or small-intestine device management code exists in ICHI; KBK.KA.AC covers replacement of a tube/enterostomy device in the small intestine (which includes the jejunum), capturing one aspect of tube attention but not the full range of care activities implied by the SNOMED concept. |
| 448490003 (Attention to prosthetic replacement of head of humerus) | is related to | MDJ.KA.AA (Replacement of shoulder joint device) | The SNOMED concept describes follow-up or management of an existing humeral head prosthesis (hemiarthroplasty at the glenohumeral joint), whereas ICHI MDJ.KA.AA covers revision or replacement of the shoulder joint device — a related but distinct action. No ICHI code for hemiarthroplasty-specific follow-up exists, and ICHI does not separate humeral head from the full shoulder joint target. |
| 738066004 (Attention to total hip replacement) | is related to | MLJ.KA.AA (Replacement of hip joint device) | The SNOMED concept denotes ongoing attention to (follow-up/management of) a total hip replacement, whereas MLJ.KA.AA encodes revision or replacement of the hip joint device — clinically related but semantically distinct, as "attention to" implies monitoring or adjustment rather than a full device exchange. |
| 762052005 (Attention to total knee replacement) | is related to | MMJ.KA.AA (Replacement of knee joint device) | The SNOMED concept refers to follow-up care or management of a total knee prosthesis, while MMJ.KA.AA represents revision or replacement of the knee joint device; both share the same anatomical target and device context but differ in the nature of the clinical action performed. |
| 738277004 (Attention to total prosthetic replacement of elbow joint) | is related to | MEJ.KA.AA (Replacement of elbow joint device) | SNOMED 738277004 describes follow-up or management of an existing total elbow prosthesis, whereas MEJ.KA.AA encodes device revision or replacement of the elbow joint; the codes share the same anatomical and device domain but the ICHI action implies active surgical revision rather than clinical surveillance. |
| 762053000 (Attention to total prosthetic replacement of shoulder joint) | is related to | MDJ.KA.AA (Replacement of shoulder joint device) | The SNOMED concept covers follow-up or ongoing management of a total shoulder prosthesis, while MDJ.KA.AA describes revision or replacement of the shoulder joint device; this is a total shoulder arthroplasty, making MDJ.KA.AA an equally appropriate but still action-mismatched best fit. |
| 84637000 (Atticoantrostomy of ear) | is related to | CDA.FA.AC (Incision of mastoid) | Atticoantrostomy is a surgical opening connecting the attic (epitympanic recess) to the mastoid antrum, involving both the middle ear and mastoid — ICHI has no specific atticoantrostomy code, and the closest structural match is incision of the mastoid (CDA.FA.AC), though this covers only part of the procedure and misses the middle-ear/attic component. |
| 237001001 (Augmentation of labor) | is related to | NME.SH.AF (Intravenous medical induction of labour) | ICHI does not have a distinct code for augmentation of labour (stimulating labour already in progress) separate from induction (initiating labour); NME.SH.AF (intravenous medical induction — typically oxytocin IV, which is also the primary agent for augmentation) is the closest practical match, but induction and augmentation are clinically distinct concepts, making this a related rather than equivalent mapping. |
| 389008003 (Autogenic therapy) | is related to | SDJ.PQ.ZZ (Psychotherapy for handling stress and other psychological demands) | Autogenic therapy is a self-relaxation technique targeting stress and anxiety, and ICHI's closest match is SDJ.PQ.ZZ (psychotherapy for handling stress and other psychological demands). However, autogenic therapy is a specific self-directed relaxation/autosuggestion method rather than generic psychotherapy, so the match is related but not semantically equivalent; ICHI has no dedicated code for autogenic training or relaxation techniques. |
| 86693001 (Autopsy review for teaching) | is related to | PZA.AE.AA (Autopsy) | The SNOMED concept specifies an autopsy conducted in a teaching context, which is a distinct educational activity not represented in ICHI; the single ICHI autopsy code covers the examination procedure generically and does not capture the teaching purpose or review component. |
| 68184000 (Autopsy review, consultation and report) | is related to | PZA.AE.AA (Autopsy) | This SNOMED concept describes review, consultation, and reporting activities associated with an autopsy — administrative and analytical work distinct from performing the autopsy examination itself — whereas ICHI's single autopsy code represents the physical postmortem examination procedure only. |
| 252819009 (B scan ultrasound - with Doppler studies) | is related to | BZA.BA.BJ (Ultrasound of eyeball) | B-scan (brightness-mode) ultrasonography is primarily an ophthalmic imaging technique, and BZA.BA.BJ is the ICHI code for eyeball ultrasound; however, the SNOMED concept combines B-scan with Doppler studies and lacks an organ specifier, making this a related but inexact match since ICHI does not have a generic multi-modal ultrasound code. |
| 115255002 (Bacterial count) | is related to | XG6201 (Genus and species identification of bacteria and fungi) | ICHI has no dedicated "bacterial count" code (quantitative enumeration of bacteria); the closest available code identifies bacteria to genus/species level, which is a related but distinct microbiological laboratory procedure — it does not capture the quantitative colony-count aspect of the SNOMED concept. |
| 275721003 (Bacteriology - general) | is related to | XG6201 (Genus and species identification of bacteria and fungi) | "Bacteriology - general" is a broad procedural category covering the full range of laboratory work on bacteria (culture, identification, typing, susceptibility), which ICHI does not model as a single concept; XG6201 is the only bacteria-specific laboratory code in ICHI and is therefore only relationally associated, not a reasonable hierarchical match. |
| 385883000 (Bed rest care assessment) | is related to | LTC.AA.ZZ (Assessment of protective functions of the skin) | Bed rest care assessment in nursing primarily aims to evaluate risk and status of skin integrity and pressure injury prevention — the core concern of LTC.AA.ZZ. However, the SNOMED concept is broader (encompassing circulatory, pulmonary, and musculoskeletal monitoring during bed rest), so the ICHI code captures only one dimension of the assessment, making this a related rather than equivalent match. |
| 385886008 (Bed rest care management) | is related to | LTC.LD.ZZ (Positioning to protect skin functions) | The central nursing intervention in bed rest care management is therapeutic repositioning to prevent pressure injuries, which is exactly what LTC.LD.ZZ encodes. The SNOMED concept is broader (also covering range-of-motion exercises, hydration, and pulmonary care during bed rest), so the ICHI code addresses only the positioning/skin-protection component, making this a related rather than equivalent match. |
| 410368008 (Behavior modification surveillance) | is related to | VFZ.VC.ZZ (Public health surveillance concerning other specified health-related behaviours) | VFZ.VC.ZZ captures ongoing surveillance of health-related behaviours, which partially aligns with monitoring behaviour change, but it is framed as a population-level public health surveillance activity whereas the SNOMED concept refers to clinical monitoring/surveillance of an individual's behaviour modification programme; the concepts are related but not equivalent in scope or setting. |
| 385734006 (Bereavement support management) | is related to | AUD.ZZ.ZZ (Other interventions on emotional functions, not elsewhere classified) | Bereavement support management denotes the ongoing coordination and delivery of a bereavement support programme, which does not map cleanly to any single ICHI action code (counselling, emotional support, or training). AUD.ZZ.ZZ captures the residual category within emotional function interventions, but the match is approximate given the management/coordination focus. |
| 1351353005 (Bilateral viscocanalostomy) | is related to | BBE.LI.AA (Facilitation of circulation in anterior chamber of eye) | Viscocanalostomy is a non-penetrating glaucoma surgery that dilates Schlemm's canal with viscoelastic to improve aqueous outflow; ICHI has no dedicated code for it, but BBE.LI.AA (facilitation of circulation in anterior chamber of eye) is the closest functional match capturing the intent of restoring aqueous drainage. The match is approximate and does not encode the viscoelastic technique, the scleral flap, or bilaterality. |
| 241598003 (Bimanual examination) | is related to | NME.AE.AC (Digital examination of uterus) | "Bimanual examination" in clinical usage most commonly refers to a bimanual pelvic examination assessing the uterus and adnexa, which corresponds most closely to digital examination of the uterus (NME.AE.AC). However, the SNOMED term is broader and can denote bimanual examination of other structures (e.g., breast, rectum), so the match is related but not equivalent. |
| 90378003 (Biofeedback training by electromyogram application in tension headache) | is related to | MRM.AB.AE (Electromyography) | ICHI has a code for electromyography (the measurement modality used in EMG biofeedback) under musculoskeletal interventions, but there is no ICHI code representing the biofeedback training use of EMG, nor any concept specific to tension headache management; the ICHI code captures only the electrophysiological measurement component, not the therapeutic training application. |
| 73598003 (Biofeedback, autogenic training) | is related to | AUD.PH.ZZ (Training of emotional functions) | Autogenic training is a self-relaxation technique targeting emotional and autonomic regulation; ICHI has no autogenic training or biofeedback code, and the closest functional match is training of emotional functions, though this is an approximate fit that does not capture the specific autogenic or biofeedback technique. |
| 77495002 (Biofeedback, electro-oculogram) | is related to | BTF.AF.AH (Electrooculography) | ICHI has a code specifically for electrooculography (the measurement procedure) under interventions on eye functions, which matches the instrument used, but the SNOMED concept specifies this as a biofeedback therapeutic application rather than a diagnostic measurement, so there is a mismatch in intent between assessment and training. |
| 88726004 (Biofeedback, electrocardiogram) | is related to | HTB.AC.AH (Electrocardiogram, not elsewhere classified) | ICHI has a code for the ECG procedure itself under heart function interventions, which captures the modality used, but the SNOMED concept refers to the therapeutic biofeedback application of ECG rather than the diagnostic measurement. |
| 1453000 (Biofeedback, galvanic skin response) | is related to | LT2.ZZ.ZZ (Other interventions to functions of the skin, not elsewhere classified) | Galvanic skin response biofeedback targets electrodermal/sweat-gland activity (an integumentary function), and ICHI has no training (PH) or biofeedback-specific code under skin functions — only a catch-all residual code for other skin function interventions. |
| 1335926003 (Biopsy of neck) | is related to | DFB.AD.AA (Biopsy of cervical lymph node) | ICHI has no generic "biopsy of neck" code — the neck is not an assignable target in itself, and all neck biopsy codes in ICHI target specific tissues (lymph node, cervical spine, joint, skin). DFB.AD.AA represents the most clinically common reason for an unspecified neck biopsy. |
| 178264009 (Biopsy of neuromuscular junction) | is related to | ACA.AD.AA (Biopsy of peripheral nerve) | ICHI has no code for biopsy of the neuromuscular junction as a distinct target; the NMJ lies at the interface of peripheral nerve and muscle and is not classified separately. ACA.AD.AA is the closest anatomical match given the nerve component. |
| 430230000 (Biopsy of trunk) | is related to | MRS.AD.AA (Biopsy of soft tissue of unspecified site) | ICHI does not have a generic "biopsy of trunk" code; "trunk" as a SNOMED target encompasses multiple tissue types and body wall structures, not only skin, making a direct equivalent unavailable. MRS.AD.AA is preferred as a broader soft-tissue biopsy code. |
| 46203002 (Bivalving of cast) | is related to | PZX.LC.AH (Application of cast or splint, not elsewhere classified) | Bivalving a cast is a distinct procedure — cutting a circumferential cast longitudinally to relieve pressure — which is not the same as applying a cast. No ICHI code exists specifically for cast modification or bivalving; PZX.LC.AH covers cast/splint interventions as the closest related concept but refers to application rather than modification of an existing cast. |
| 30381006 (Bleeding precautions) | is related to | DTA.PN.ZZ (Advising about functions of the haematological system) | Bleeding precautions is a nursing/clinical safety intervention instructing patients at risk of bleeding on how to avoid injury and haemorrhage, which most closely maps to advising about haematological system functions in ICHI. However, the SNOMED concept encompasses a broader set of safety measures (environmental modifications, activity restrictions, fall prevention) beyond the single educational/advising action captured by DTA.PN.ZZ, making this a related rather than equivalent or inexact match. |
| 243886006 (Blind registration) | is related to | UEN.RG.ZZ (Providing social security services, systems and policies) | Blind registration is an administrative/social process of formally certifying a person as legally blind to grant access to social welfare benefits and services; there is no ICHI code for disability or blindness certification specifically. UEN.RG.ZZ (Providing social security services) is the closest conceptual match as it covers the provision of the social security system access that blind registration enables, but it is a broad administrative category and not a clinical procedure. |
| 179827001 (Blocking operation on joint using prosthesis for stabilization of joint) | is related to | MMJ.DN.AA (Implantation of device into knee joint) | A blocking/bolstering operation using a prosthesis to stabilize a joint is a generic joint-level procedure concept not tied to a specific joint in the SNOMED term; ICHI codes are joint-specific and there is no generic "joint" target. MMJ.DN.AA is offered only as a representative example — the correct code would depend on which joint is involved, and no single ICHI code covers this generic SNOMED concept. |
| 185673004 (Blood pressure abnormal - 1st recall) | is related to | ITA.AB.AH (Measurement of blood pressure) | This SNOMED concept represents an administrative recall visit prompted by an abnormal blood pressure finding, not an ICHI-classifiable intervention per se. The most clinically relevant ICHI action associated with such a recall is blood pressure measurement, but the SNOMED concept's primary meaning is the administrative follow-up episode, making this a related-to rather than a direct equivalence. |
| 185674005 (Blood pressure abnormal - 2nd recall) | is related to | ITA.AB.AH (Measurement of blood pressure) | Like the 1st recall, this concept encodes an administrative follow-up episode (second contact) triggered by an abnormal blood pressure result; the recall ordinal has no ICHI counterpart, and the closest underlying clinical intervention is blood pressure measurement. |
| 185675006 (Blood pressure abnormal - 3rd recall) | is related to | ITA.AB.AH (Measurement of blood pressure) | Same reasoning as the 1st and 2nd recall concepts — the SNOMED term encodes an administrative third-contact episode, not a distinct procedure; ICHI covers only the clinical measurement act, not the recall sequence number. |
| 385834004 (Blood specimen care) | is related to | DIA.AH.XA (Specimen collection of blood) | "Blood specimen care" in SNOMED refers to the handling, processing, or management of a blood specimen after it has been obtained, which is broader than and distinct from specimen collection; DIA.AH.XA covers only the collection step, so the match is related-to rather than equivalent or wider. |
| 385833005 (Blood specimen care assessment) | is related to | DIA.AH.XA (Specimen collection of blood) | "Blood specimen care assessment" is a quality/process assessment of how a blood specimen is handled, which has no dedicated ICHI code; the closest available code covers the blood specimen collection act itself, not the assessment of specimen care practices. |
| 133917009 (Bonding encouragement) | is related to | SSK.RB.ZZ (Practical support with engaging in parent-child relationships) | SSK.RB.ZZ targets parent-child relationship engagement through practical support, which is conceptually aligned with encouraging bonding between caregiver and child. However, "encouragement" as an action is not precisely the same as "practical support" (action RB), and the SNOMED term is broader in not specifying the means, making this a related but inexact match. |
| 84675000 (Bone histomorphometry) | is related to | MRB.AC.BA (Bone mineral density studies) | Bone histomorphometry is a quantitative microscopic analysis of bone tissue structure and turnover (typically from a biopsy specimen), which is a distinct technique from bone mineral density studies (densitometry); however, both are quantitative bone assessment procedures and no closer ICHI code exists — MRB.AC.BA is the nearest related bone measurement category. |
| 119966007 (Bone marrow excision) | is related to | DGA.AD.AE (Percutaneous biopsy of bone marrow) | ICHI has no code for excision of bone marrow as such; the only tissue-removal procedure coded under the bone marrow block is percutaneous biopsy (DGA.AD.AE), which is a diagnostic sampling rather than a true excision. The two procedures are related but not equivalent, as biopsy is narrower in intent and volume of tissue removed. |
| 26086007 (Bone marrow laboratory procedure) | is related to | DGA.AD.AE (Percutaneous biopsy of bone marrow) | ICHI does not classify in-vitro laboratory analyses of bone marrow specimens as distinct procedure codes; the closest coded intervention in the bone marrow block that generates material for laboratory analysis is percutaneous biopsy (DGA.AD.AE), but it represents the specimen-collection step rather than the laboratory examination itself. |
| 428229000 (Bone tendon autograft) | is related to | MRB.JH.AA (Procurement of bone from unspecified site for graft) | A bone-tendon autograft involves harvesting a composite graft; ICHI codes graft procurement by tissue type separately, so MRB.JH.AA covers only the bone component. No single ICHI code captures the composite bone-tendon autograft concept. |
| 179174007 (Boot traction) | is related to | MBZ.LC.AE (Direct or skeletal traction to the spine) | ICHI's only non-extraction traction code is site-specific to the spine and uses a skeletal approach rather than the skin-surface/boot approach. Boot traction is a skin traction device applied to the lower limb; no limb traction or skin traction category exists in ICHI. |
| 274483006 (Brace removal) | is related to | PMA.SO.AH (Removal of assistive product from upper limb, not elsewhere classified) | ICHI encodes removal of assistive products per body region but has no single generic "brace removal" code; the closest unqualified option is PMA.SO.AH. The SNOMED concept does not specify anatomical location, so no exact ICHI match exists. |
| 278818005 (Brachial incision) | is related to | ICA.FA.AA (Incision of artery of upper limb) | "Brachial incision" most commonly refers to incision over the brachial artery, for which ICA.FA.AA is the closest match, but the term could also refer to incision of the brachium soft tissue. No dedicated incision-of-upper-arm code exists in ICHI. |
| 175472009 (Branches of abdominal aorta operations) | is related to | BlockL5-HIH (Interventions on abdominal aorta) | The SNOMED concept covers operations on the branches of the abdominal aorta (celiac, SMA, IMA, renals), whereas BlockL5-HIH groups interventions on the abdominal aorta trunk itself. No ICHI block addresses abdominal aortic branches as a collective target. |
| 359561007 (Brockman operation) | is related to | MOT.FC.AA (Release of tendon of foot or toe) | The Brockman operation is a combined soft-tissue release for congenital clubfoot involving tendon and joint capsule division of the foot; MOT.FC.AA captures the predominant tendon release component but does not represent the full combined procedure. |
| 450809006 (Brushing of teeth) | is related to | KAE.JG.AC (Dental scaling, polishing, and debridement) | ICHI does not have a specific code for tooth brushing; KAE.JG.AC covers professional dental cleaning procedures (scaling, polishing, debridement) performed on teeth, which is related but represents a professional clinical procedure rather than the act of brushing teeth itself. |
| 444336003 (Calculation of quantitative glomerular filtration rate based on creatinine concentration in serum or plasma) | is related to | NTC.AB.ZZ (Measurement of urinary excretory functions) | ICHI has no dedicated eGFR calculation code; NTC.AB.ZZ covers measurement of urinary excretory functions (the functional domain that GFR quantifies), but it is a broad functional measurement category and does not capture the serum creatinine-based laboratory calculation nature of this SNOMED concept. |
| 443759003 (Calculation of quantitative volume rate of glomerular filtration based on concentration of analyte in serum or plasma specimen) | is related to | NTC.AB.ZZ (Measurement of urinary excretory functions) | This is the generic parent concept for serum/plasma analyte-based GFR calculation, and like 444336003 it has no dedicated ICHI code; NTC.AB.ZZ is the closest thematic match within the urinary functions domain, but remains semantically distant from a laboratory-based serum calculation. |
| 444160009 (Calculation of quantitative volume rate of glomerular filtration based on cystatin C concentration in serum or plasma specimen) | is related to | NTC.AB.ZZ (Measurement of urinary excretory functions) | The cystatin C-specific GFR calculation has no ICHI equivalent; NTC.AB.ZZ is the same best-available match as for the other GFR concepts, covering functional urinary measurement broadly but not this specific laboratory analyte-based calculation method. |
| 413741005 (Cancer monitoring third letter) | is related to | VDB.VB.ZZ (Awareness raising to influence screening behaviours) | A "third letter" is a written patient recall reminder sent to encourage uptake of cancer screening, which is an outreach/awareness action targeting screening behaviour; ICHI has no specific patient recall letter code, so awareness raising within the screening behaviours block is the closest available concept, though far broader. |
| 417084004 (Cancer monitoring verbal invitation) | is related to | VDB.VB.ZZ (Awareness raising to influence screening behaviours) | A verbal invitation (e.g. telephone call) to attend cancer screening is an individual-level outreach act to promote uptake of screening; ICHI lacks a specific patient-recall or verbal-contact code, so awareness raising to influence screening behaviours is the nearest available concept. The match is weak — the ICHI code is population-oriented and does not encode the verbal/telephone modality. |
| 723949005 (Cannabis therapy) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | Cannabis therapy (medical cannabis) is a form of pharmacotherapy, and ICHI's closest code is the prescribing act for pharmacotherapy; however the SNOMED concept encompasses the entire therapeutic process (not just prescribing), and ICHI does not distinguish cannabis from other pharmacological agents, making this an approximate mapping only. |
| 233549000 (Cannulation of arterial graft) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | Cannulation of an arterial graft most commonly refers to needle puncture of a dialysis AV graft for haemodialysis access, which is functionally captured under management of arteriovenous shunt; however the ICHI code encompasses broader shunt management beyond just cannulation, and arterial grafts used in other contexts (e.g. CABG conduits) are not well represented. |
| 385715006 (Cardiac care) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | "Cardiac care" is a broad nursing/care delivery concept that does not map precisely to any single ICHI category; PZB.ZY.ZY represents a residual health management encounter and is the closest available code for a general, unspecified episode of care. HT2-block codes cover cardiovascular function interventions but not the holistic care-delivery meaning of cardiac care. |
| 385717003 (Cardiac care management) | is related to | PZB.TB.ZZ (Individualised planning) | "Cardiac care management" denotes the coordination and planning of an ongoing cardiac care episode, which aligns most closely with PZB.TB.ZZ (individualised planning); however the ICHI code is domain-agnostic and broader than the SNOMED concept, making this a relatedto rather than equivalent mapping. No specific ICHI code exists for cardiac care coordination or management as a distinct intervention type. |
| 232957001 (Cardiac support procedure) | is related to | HZZ.DN.AA (Implantation of cardiac assist device, not elsewhere classified) | "Cardiac support procedure" is a broad SNOMED grouper concept encompassing any intervention intended to support cardiac function (mechanical assist, counterpulsation, etc.), whereas HZZ.DN.AA is specific to implantation of a cardiac assist device. No single ICHI code represents this abstract category, making the relationship relatedto rather than a direct equivalence. |
| 45669002 (Cardio-omentopexy) | is related to | HFD.FA.AA (Transmyocardial revascularisation) | Cardio-omentopexy (Vineberg-type procedure) surgically attaches the omentum to the myocardium to induce neovascularization and improve cardiac perfusion, sharing the same therapeutic goal of myocardial revascularization as HFD.FA.AA, but the mechanism (omental adhesion vs. laser/surgical channels through myocardium) is distinct. No ICHI code specifically represents omental-cardiac fixation. |
| 265347008 (Cardiomyotomy) | is related to | KBA.FA.AA (Incision of oesophagus) | Cardiomyotomy (Heller myotomy) is a surgical incision through the muscle fibres at the gastroesophageal junction/cardia to treat achalasia; ICHI does not have a dedicated myotomy of the cardia or oesophageal myotomy code, but incision of oesophagus (KBA.FA.AA) is the closest structural match. The gastroesophageal junction block (KBE) contains only repair and release codes, and the musculoskeletal myotomy codes (MRM.FA.AA) are scoped to the musculoskeletal system rather than the gastrointestinal tract. |
| 133896000 (Care of immunosuppressed patient) | is related to | PZB.VE.ZZ (Isolation of a person for infection control) | Protective isolation is a central component of care for immunosuppressed patients, but the SNOMED concept encompasses the full spectrum of immunosuppression management (monitoring, prophylaxis, etc.) far beyond isolation alone. The code is related but covers only one facet of the broader SNOMED concept. |
| 133903000 (Care of intensive care unit patient) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI lacks any dedicated code for ICU or critical care management; the closest available category is the unspecified whole-person health management encounter, which is a loosely related residual code. The SNOMED concept implies a complex, high-acuity bundle of interventions that has no corresponding ICHI representation. |
| 133895001 (Care of patient with infectious disease) | is related to | PZB.VE.ZZ (Isolation of a person for infection control) | No ICHI code represents general care of a patient with infectious disease as a whole-person care episode. PZB.VE.ZZ ("Isolation of a person for infection control") is the most relevant code in the infectious disease patient management space, but it captures only one specific intervention (isolation) rather than the broader concept of caring for an infectious disease patient. |
| 385916004 (Care of pressure injury stage I) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | ICHI has no code for pressure injury care by stage; LZZ.DK.AH is the best available match as it covers topical/dressing interventions on skin, which is the primary treatment for a stage I pressure injury (non-blanchable erythema, skin still intact). The ICHI code does not encode the wound type, staging, or the full care package, making it only relationally equivalent. |
| 385920000 (Care of pressure injury stage II) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | As with stage I, ICHI has no staging-specific pressure injury code; LZZ.DK.AH is the best available fit since stage II management centres on wound dressing and skin care. The code is broader and does not differentiate wound type or severity, so a relatedto equivalence is appropriate for both stage I and II concepts. |
| 133902005 (Care of unconscious patient) | is related to | ATC.AI.ZZ (Monitoring of awareness and alertness functions) | "Care of unconscious patient" is a broad nursing intervention encompassing monitoring, airway management, positioning, and skin care; ICHI does not have a direct equivalent for comprehensive care of an unconscious patient. ATC.AI.ZZ captures the most clinically central element — ongoing monitoring of consciousness/alertness — but is narrower than the full scope of the SNOMED concept. |
| 229058001 (Case conference) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI contains no dedicated "case conference" or "multidisciplinary team meeting" code; PZB.ZY.ZY is the closest available option as a catch-all health management encounter under the "Whole person" block, but it is a residual/NEC category and does not specifically denote a multi-professional conference activity. |
| 1344994002 (Case management of signs and symptoms of emotional problem) | is related to | AUD.ZZ.ZZ (Other interventions on emotional functions, not elsewhere classified) | AUD.ZZ.ZZ captures unspecified/NEC interventions targeting emotional functions, which aligns with the emotional problem focus, but it does not reflect the case management/coordination dimension of the SNOMED concept; more specific AUD action codes (assessment, counselling, training) each address only one aspect of case management. |
| 1345003009 (Case management of signs and symptoms of mental health problem) | is related to | AS1.AA.ZZ (Assessment of mental functions, unspecified) | ICHI has no "case management" action code targeting mental health signs and symptoms as a unified concept; the closest available code covers assessment of mental functions broadly, which partially captures the evaluation aspect but not the ongoing coordination and management component of case management. |
| 385694004 (Cast care assessment) | is related to | PZX.LC.AH (Application of cast or splint, not elsewhere classified) | ICHI has no dedicated code for assessing/monitoring a cast already in situ; the only cast-related code covers application of a cast or splint, which is a related but distinct intervention from a post-application cast care assessment. |
| 385697006 (Cast care management) | is related to | PZX.LC.AH (Application of cast or splint, not elsewhere classified) | ICHI does not contain a specific code for ongoing management or monitoring of a cast; the only cast code is for the application procedure itself, making it a related but non-equivalent match for the broader management concept. |
| 1303482006 (Cauterization of lesion of perineum) | is related to | PAW.JI.AA (Local excision of lesion of perineum) | The perineum block (PAW) contains no destruction code — the closest available option is PAW.JI.AA (local excision of lesion of perineum), which shares the same target and lesion specificity but involves excision rather than cauterization/destruction, making it a related but not equivalent procedure. |
| 172141006 (Cauterization of orbital lesion) | is related to | BAM.JI.AA (Local excision of lesion of orbit) | ICHI has no destruction (GA) code for the orbit — the block contains excision, biopsy, aspiration, and repair codes but no cauterization/destruction equivalent. The closest available code is local excision of a lesion of the orbit, which addresses the same target (orbital lesion) but through a different action (excision rather than destruction by heat/cautery). |
| 78951002 (Cell count and differential, body fluid) | is related to | XG06E8 (Peripheral blood film examination) | ICHI has no code for cell count with differential on a generic body fluid specimen; XG06E8 (peripheral blood film examination) is the closest conceptual analogue as it involves morphological cell enumeration and differential from a fluid specimen, but it is specific to peripheral blood rather than any body fluid. |
| 104109009 (Cell count, cerebrospinal fluid) | is related to | XG69Q0 (Microscopy) | ICHI contains no dedicated CSF cell count code; the closest procedural category is XG69Q0 (Microscopy), which subsumes manual cell counting in CSF but is far broader. The match is related-to because the procedure class overlaps but ICHI does not capture the CSF-specific or counting-specific nature. |
| 104113002 (Cell count, peritoneal fluid) | is related to | XG69Q0 (Microscopy) | No ICHI code exists for peritoneal fluid cell count specifically. XG69Q0 (Microscopy) is the most plausible procedural home within ICHI's Essential Laboratory Tests block, but it is far broader and lacks peritoneal-fluid specificity. |
| 104121008 (Cell count, urine) | is related to | XG0NB5 (Urine chemistry) | ICHI has no code for urine cell count or urinary microscopy for cellular elements; XG0NB5 (Urine chemistry) is the only urine-specific examination procedure in ICHI's lab block and is the closest available category, but it covers chemical rather than cellular analysis. |
| 431312000 (Cementoplasty using fluoroscopic guidance) | is related to | MBZ.ML.AE (Percutaneous vertebroplasty, not elsewhere classified) | Cementoplasty (percutaneous injection of bone cement into bone, typically for fracture stabilisation) is procedurally very similar to vertebroplasty; however, cementoplasty can be applied to non-vertebral bones (pelvis, femur, etc.) and the SNOMED concept specifies fluoroscopic guidance rather than being vertebra-specific. |
| 171884008 (Cervical chemical sympathectomy) | is related to | ADB.DC.AE (Injection of anaesthetic into cervical sympathetic nerve) | ICHI lacks a dedicated chemical neurolysis/sympathectomy code for the cervical sympathetic nerve; the closest available code is injection of anaesthetic into the cervical sympathetic nerve, which shares the same target but uses an anaesthetic rather than a neurolytic agent. |
| 260657002 (Cervical collar incision with sternotomy extension) | is related to | MCB.FA.AA (Osteotomy of rib or sternum) | ICHI has no code representing a combined neck collar incision extended into a sternotomy; osteotomy of rib or sternum captures the sternotomy bone-division component but not the cervical soft-tissue collar incision or the combined access concept. |
| 185604009 (Cervical smear - 2nd recall) | is related to | NMF.AH.XH (Cervical papanicolaou smear) | The SNOMED concept represents the administrative second-recall invitation event within a screening programme, not the smear itself; the ICHI code captures the underlying clinical procedure the patient is being recalled to undergo. |
| 185605005 (Cervical smear - 3rd recall) | is related to | NMF.AH.XH (Cervical papanicolaou smear) | This concept encodes the administrative third-recall invitation event rather than the smear procedure itself; the ICHI code represents the underlying clinical intervention the patient is being invited to have. |
| 308416009 (Cervical smear call) | is related to | NMF.AH.XH (Cervical papanicolaou smear) | This SNOMED concept denotes the initial call/invitation step in a cervical screening programme rather than the smear; ICHI lacks administrative scheduling/invitation codes, so the closest related procedural concept is the Pap smear the call prompts. |
| 182838006 (Change of medication) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | ICHI has no dedicated "change of medication" code; pharmacotherapy prescription is the closest concept covering the clinical act of deciding/documenting a medication regimen, but does not precisely capture substituting or modifying an existing medication order. |
| 113012008 (Change of prescription) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | ICHI has prescription-related codes but none captures the act of changing or revising an existing prescription; pharmacotherapy prescription is the closest related concept, describing the act of prescribing rather than modifying a prior prescription. |
| 234900007 (Cheek operation) | is related to | KAZ.ZZ.ZZ (Oral cavity, not elsewhere classified) | ICHI has no dedicated block or category for the cheek as a surgical target; the cheek appears only as an extension anatomy code (XA7MK8) with no standalone procedure codes. KAZ.ZZ.ZZ covers unspecified oral cavity interventions and is the closest organisational home, but it is too imprecise and misaligned anatomically to be a true match for cheek surgery. |
| 235548005 (Chemodissolution of bile duct stone) | is related to | KCM.GA.AF (Percutaneous destruction of bile ducts) | ICHI has no code for chemical dissolution of a biliary calculus specifically; the closest available code covers percutaneous destruction of the bile duct itself rather than dissolution of a stone within it. The intent (chemical action on bile duct tissue/contents via percutaneous access) overlaps, but the ICHI code describes duct destruction rather than stone dissolution, making this a related but non-equivalent match. |
| 271998000 (Chemodissolution of gallbladder stone) | is related to | KCF.JE.AA (Extraction of calculus from gallbladder) | ICHI contains no code for chemical dissolution of a gallbladder calculus; the gallbladder block includes shockwave lithotripsy (KCF.GA.BJ) and calculus extraction (KCF.JE.AA) but not chemodissolution specifically. Extraction of calculus is the nearest functional equivalent in outcome (stone removal/elimination), though the mechanism differs fundamentally from chemical dissolution. |
| 385788001 (Chemotherapy care management) | is related to | UAC.TB.ZZ (Planning in relation to medications) | "Chemotherapy care management" encompasses the active coordination and management of a chemotherapy care plan, which is conceptually related to but not synonymous with ICHI's "Planning in relation to medications"; neither "management" nor a chemotherapy-specific code exists in ICHI, and the planning concept only partially overlaps. |
| 68619000 (Chemotherapy for non-neoplastic disease) | is related to | PZA.DB.AZ (Administering pharmacotherapy, route not specified) | ICHI does not have a specific code for chemotherapy used in non-neoplastic conditions (e.g., immunosuppression, autoimmune disease). PZA.DB.AZ covers unrouted administration of pharmacotherapy as the closest structural match, but it is a generic drug administration code and does not capture the chemotherapy agent type or the non-neoplastic indication, making it only relatedly equivalent. |
| 386497007 (Child abuse prevention) | is related to | VBB.VB.ZZ (Awareness raising to influence family and partner violence behaviours) | Child abuse sits within the ICHI family and partner violence block (VBB), and awareness raising (VB action) is a common prevention modality, but VBB.VB.ZZ does not specifically target children as the protected population and covers a broader set of family/partner violence behaviours. No ICHI code exists that specifically captures child abuse prevention as a distinct intervention. |
| 308401006 (Child development check call) | is related to | ETM.AA.ZZ (Assessment of growth and development) | This SNOMED concept denotes an administrative telephone contact to arrange or follow up on a developmental check, which is primarily a health-service coordination act; ETM.AA.ZZ represents the assessment of growth and development itself and is therefore related but not a direct procedural equivalent. |
| 1156961008 (Chimeric antigen receptor T-cell immunotherapy) | is related to | DGA.KD.AF (Bone marrow or stem cell transplant) | ICHI has no dedicated code for CAR-T cell therapy; the closest concept is the bone marrow or stem cell transplant code (DGA.KD.AF), which shares the domain of cellular/haematopoietic interventions but is a structurally different procedure involving transplantation rather than infusion of genetically engineered T-cells. The two procedures are related but not semantically equivalent. |
| 232665001 (Chin lift) | is related to | PZX.LD.ZZ (Positioning of a part of the body, not elsewhere classified) | ICHI does not have a specific code for the chin lift maneuver (an emergency airway-opening technique); the best available concept is positioning of a part of the body NEC (PZX.LD.ZZ), which captures the physical repositioning action but does not reflect the specific airway management intent or anatomical precision of a chin lift. The match is approximate and the ICHI code is much broader. |
| 185679000 (Chronic disease monitoring - first recall) | is related to | PZB.AA.ZZ (General health assessment) | ICHI has no concept for a disease-management recall or scheduled follow-up contact; PZB.AA.ZZ (General health assessment, whole person) is the closest clinical encounter code, but it captures the assessment content rather than the administrative act of a first recall in a chronic disease programme. |
| 185680002 (Chronic disease monitoring - second recall) | is related to | PZB.AA.ZZ (General health assessment) | Same reasoning as the first recall — ICHI contains no recall/follow-up scheduling construct, and PZB.AA.ZZ is the best available proxy for the clinical encounter component of the second recall visit. |
| 185681003 (Chronic disease monitoring - third recall) | is related to | PZB.AA.ZZ (General health assessment) | Same reasoning as the first and second recall concepts; ICHI does not distinguish recall sequence numbers or chronic disease programme contacts, so PZB.AA.ZZ is the closest available code. |
| 70956006 (Cineplasty with cineplastic prosthesis of lower extremity) | is related to | PNA.DP.AH (Installation of assistive product to lower limb, not elsewhere classified) | This SNOMED concept describes a combined surgical and prosthetic procedure (cineplastic tunnel creation plus prosthesis fitting) for the lower extremity; PNA.DP.AH captures only the prosthesis-fitting component on the lower limb and omits the surgical amputation/tunnel construction, making it related but not a reasonable equivalence match for the full procedure. |
| 433452008 (Clearing of tissue specimen) | is related to | PZX.AH.XH (Specimen collection of tissue) | "Clearing of tissue specimen" is a histological processing step (rendering tissue transparent for microscopy) performed on an already-collected specimen, whereas PZX.AH.XH covers the collection act itself; no ICHI code exists for post-collection specimen preparation. |
| 413095006 (Clinical management plan review) | is related to | PZB.AA.ZZ (General health assessment) | No ICHI code specifically represents a management plan review; PZB.AA.ZZ (General health assessment) is the closest available concept, but it does not capture the specific act of reviewing an existing clinical management plan. |
| 225312004 (Close supervision) | is related to | PZB.AM.ZZ (Observation of whole person) | "Close supervision" implies active oversight and management of a patient beyond mere observation, but ICHI has no dedicated supervision or care-oversight code; PZB.AM.ZZ is the nearest available concept yet only partially captures the supervisory component. |
| 307560005 (Closure of intestinal-vascular graft fistula) | is related to | KBK.MK.AA (Repair of small intestine, not elsewhere classified) | ICHI has no code for an intestinal-vascular graft fistula; the best available match is the generic intestinal repair code, which does not capture the vascular graft component or the specific nature of this rare fistula. |
| 53662004 (Closure of lacrimal fistula) | is related to | BAD.MK.AA (Repair of canaliculus) | ICHI has no dedicated code for closure of a lacrimal fistula; "Repair of canaliculus" is the most anatomically relevant repair within the lacrimal apparatus block but targets the canaliculus specifically rather than a lacrimal fistula in general. |
| 235482001 (Closure of pancreaticogastrostomy) | is related to | KCO.MK.AA (Repair of pancreas) | ICHI contains no code for takedown or closure of a pancreaticogastric anastomosis; KCO.MK.AA is the nearest available concept but the SNOMED concept specifically describes dismantling a pancreas-to-stomach anastomosis. |
| 172961004 (Closure of pharyngocutaneous fistula) | is related to | KAR.MK.AA (Repair of oral pharynx) | ICHI has no code for pharyngocutaneous fistula closure; KAR.MK.AA is the closest pharynx repair code available but targets the oropharynx rather than the hypopharynx/laryngopharynx, and does not capture the cutaneous component of the fistula closure. |
| 71810007 (Closure of skin wound by tape) | is related to | BlockL4-LAA (Interventions on skin) | ICHI does not have a code specifically for skin wound closure by tape (a non-suture surface approximation technique); the closest structural home is the block for interventions on skin. |
| 1287770001 (Closure of subcutaneous tissue by suture) | is related to | BlockL4-LAA (Interventions on skin) | ICHI's "Repair of skin and subcutaneous cell tissue" codes are region-specific and none precisely encode closure of subcutaneous tissue by suture as a body-region-agnostic act; the parent block is the best structural anchor. |
| 449675003 (Closure of upper limb) | is related to | LAE.MK.AA (Repair of skin and subcutaneous cell tissue of upper limb) | "Closure of upper limb" typically refers to soft-tissue/skin closure of the upper limb, which aligns most closely with LAE.MK.AA; however, ICHI frames this as "repair" rather than "closure," and the SNOMED term is ambiguous as to whether it refers purely to skin or deeper structures. |
| 228553007 (Cognitive therapy) | is related to | AS1.PQ.ZZ (Psychotherapy for mental functions, unspecified) | Cognitive therapy (Beck's CT) is a structured psychotherapeutic intervention targeting maladaptive thought patterns; ICHI has no dedicated psychotherapy code for higher-level cognitive functions, so AS1.PQ.ZZ (psychotherapy for mental functions, unspecified) is the nearest available concept but is substantially broader and less precise. |
| 235488002 (Collection of pancreatic juice) | is related to | PZX.AH.ZZ (Specimen collection, not elsewhere classified) | ICHI has no dedicated specimen collection code for pancreatic secretions or juice; the KCO block covers interventions on the pancreas (biopsy, drainage, excision) but not targeted fluid/secretion collection. PZX.AH.ZZ is the best available fallback, though a poor fit given the specificity of pancreatic juice collection via ERCP or duodenal aspirate. |
| 21217000 (Collection of pinworm specimen) | is related to | PZX.AH.XG (Specimen collection of faeces) | Pinworm (Enterobius) specimen collection uses a perianal swab or Scotch tape test rather than a faecal sample, so PZX.AH.XG is not semantically equivalent; however, no ICHI code for perianal swab or parasitological skin-surface specimen exists, and faecal specimen collection is the closest coded concept within the parasite/helminth diagnostic context. |
| 64860001 (Collection of sweat test) | is related to | LZZ.SC.BP (Iontophoresis) | The pilocarpine iontophoresis sweat test for cystic fibrosis consists of two inseparable steps — iontophoresis to stimulate sweating and collection of the sweat; ICHI codes only the iontophoresis component (the stimulus, under the integumentary system) and has no separate code for sweat specimen collection itself. |
| 717248006 (Colostomy Irrigation assessment) | is related to | KBP.JA.AC (Local irrigation of colon) | "Colostomy irrigation assessment" is an evaluative procedure assessing a patient's technique for irrigating their colostomy — it is not the irrigation procedure itself, and ICHI has no code for assessment of colostomy irrigation as a skill or bowel management technique. KBP.JA.AC is the closest structural relative but covers the therapeutic act of irrigating, not the assessment. |
| 35774004 (Complete blood count with white cell differential, manual) | is related to | XG06E8 (Peripheral blood film examination) | A manual white cell differential is performed by microscopic examination of a peripheral blood film, so XG06E8 captures the manual morphology review aspect; however, the SNOMED concept additionally encompasses the automated or semi-automated cell counting components of a full CBC, making this a related rather than equivalent match. |
| 302484009 (Complex reconstruction of soft tissue of hand) | is related to | LAE.ML.AA (Skin graft to upper limb) | ICHI lacks a dedicated code for complex soft tissue reconstruction of the hand; LAE.ML.AA (skin graft to upper limb) is related in that it covers reconstructive procedures on the soft tissues of the upper limb, but it is limited to skin grafts and is scoped to the entire upper limb rather than specifically the hand. The block BlockL4-MGB covers musculoskeletal structures of the hand but has no general soft tissue reconstruction category, making this a related-to match at best. |
| 60725006 (Complex vestibuloplasty) | is related to | KAG.ML.AC (Gingivoplasty) | Vestibuloplasty (deepening of the oral vestibular sulcus, typically involving gingival and mucosal tissue) is not explicitly present in ICHI; the closest code is KAG.ML.AC "Gingivoplasty," which covers reconstructive reshaping of gingival tissue in the same oral region. The concepts are related but vestibuloplasty involves mucosal repositioning beyond gingival-only work, so this is a relatedto rather than an equivalent match. |
| 410110000 (Compliance care assessment) | is related to | UAC.AA.ZZ (Assessment of medications) | "Compliance care assessment" (measuring a patient's adherence to a treatment plan) most commonly concerns medication regimens; UAC.AA.ZZ covers assessment of medications as an environmental/product intervention. The match is partial — ICHI's code is scoped to medications only, not to broader treatment compliance (e.g., physiotherapy adherence), making it a relatedto rather than equivalent mapping. |
| 25925003 (Concentration for ova and cysts) | is related to | PZX.AH.XG (Specimen collection of faeces) | Concentration for ova and cysts is a laboratory technique applied to a faecal specimen to improve detection of parasitic eggs and cysts — it is a specimen processing/examination step that follows faecal collection rather than being the collection act itself. ICHI has no code for faecal microscopy, parasitological examination, or specimen concentration, so the closest available ICHI code is faeces specimen collection, which is related but represents only the upstream collection step, not the concentration procedure. |
| 226027003 (Conductive education) | is related to | MVD.PH.ZZ (Training of control of voluntary movement) | Conductive education (the Peto method) is a structured educational-therapeutic approach for people with neuromotor disorders (primarily cerebral palsy) that targets coordinated voluntary movement through task-oriented rhythmic learning. MVD.PH.ZZ captures the voluntary movement training dimension of this intervention, but conductive education also encompasses cognitive, speech, and ADL components not reflected in this single code, making it a partial and approximate match. |
| 41035007 (Conjoint psychotherapy) | is related to | SSM.PQ.ZZ (Psychotherapy for engaging in intimate relationships) | "Conjoint psychotherapy" (therapy conducted simultaneously with two people in a relationship, typically partners/spouses) maps most closely to psychotherapy targeting intimate relationships (SSM.PQ.ZZ), though the SNOMED concept is defined by its format (joint sessions) rather than by a specific relationship type. SSJ.PQ.ZZ (family relationships) is also related but SSM.PQ.ZZ better captures the dyadic partner-therapy context most associated with the term "conjoint." |
| 183413003 (Conscious blood pressure control) | is related to | ITA.PH.ZZ (Training in relation to blood pressure functions) | "Conscious blood pressure control" in SNOMED refers to a biofeedback or self-regulation technique where a patient voluntarily controls their blood pressure, which maps most closely to patient training around blood pressure functions in ICHI. However, ITA.PH.ZZ is framed as formal training rather than the act of voluntary physiological self-regulation itself, making this a related rather than equivalent match. |
| 441224007 (Construction of custom definitive obturator prosthesis) | is related to | KAE.LC.AC (Application of dental device) | A palatal obturator prosthesis is a custom-fabricated removable oral appliance fitted to close a palatal defect, which corresponds most closely to application of a dental device; however, ICHI has no specific obturator prosthesis code and does not distinguish definitive from interim prostheses, making this a related rather than equivalent match. |
| 441225008 (Construction of custom interim obturator prosthesis) | is related to | KAE.LC.AC (Application of dental device) | Same mapping rationale as the definitive obturator: ICHI captures the general concept of applying a dental/oral device but lacks any code specific to obturator prostheses or the interim/definitive distinction, so this is a related but not equivalent match. |
| 54496005 (Construction of intermarginal adhesions) | is related to | BAA.MK.AA (Repair of eyelid) | Tarsorrhaphy (construction of intermarginal adhesions by suturing the eyelid margins together) is an eyelid procedure, but ICHI has no specific tarsorrhaphy code — only the reversal procedure (BAA.FB.AA, Severing of blepharorrhaphy) and the generic Repair of eyelid, which is the closest available match. |
| 79059008 (Construction of intermarginal adhesions with transposition of tarsal plate) | is related to | BAA.ML.AA (Reconstruction of eyelid) | This more complex procedure adds tarsal plate transposition to the tarsorrhaphy, which involves structural rearrangement of eyelid tissue closer to a reconstructive intervention; BAA.ML.AA (Reconstruction of eyelid) is marginally more appropriate than simple repair, but neither ICHI code specifically captures this procedure. |
| 64215005 (Construction of mucous fistula) | is related to | KBP.LI.AA (Colostomy) | A mucous fistula is the creation of a distal intestinal stoma (typically colonic or rectal) that vents mucous secretions, which is functionally closely related to colostomy (KBP.LI.AA) — both involve exteriorising a bowel end to the abdominal wall — but a mucous fistula is specifically the non-functional/distal limb of a divided bowel, while colostomy is the functional proximal limb, making this a related-to rather than equivalent match. |
| 75506009 (Construction of stoma) | is related to | KZZ.LI.AA (Other enterostomy, not elsewhere classified) | ICHI has no generic cross-organ "construction of stoma" concept; specific ostomy codes exist for individual organs (colostomy, ileostomy, tracheostomy, etc.), while KZZ.LI.AA is the closest residual catch-all for unspecified enterostomy. The SNOMED concept is organ-agnostic and broader than any single ICHI ostomy code, so no single ICHI category is an adequate direct match — KZZ.LI.AA is relationally the closest available residual. |
| 233467009 (Construction of vascular access) | is related to | IZA.LB.AA (Anastomosis of artery, not elsewhere classified) | ICHI lacks a dedicated "construction of vascular access" concept covering all modalities (AV fistula, AV graft, tunnelled catheter). IZA.LB.AA (anastomosis of artery NEC) captures the arteriovenous anastomosis technique most commonly associated with surgically constructed vascular access (e.g., Brescia-Cimino fistula), but does not encompass catheter-based or graft-based access, making it related but not equivalent. |
| 169623004 (Consultant unit booking) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no code for administrative scheduling or booking activities; UEP.TI.ZZ (Referral to health provider) is the closest concept in the health-services-systems-and-policies block, but booking a consultant unit slot is an administrative/scheduling act that is only loosely related to a clinical referral. |
| 423779001 (Continuity of care management) | is related to | PZB.TD.ZZ (Case coordination) | "Continuity of care management" refers to ensuring seamless transitions and ongoing management across healthcare settings, which aligns conceptually with case coordination at the whole-person level. The ICHI code captures care coordination activities but does not specifically encode the continuity-across-settings dimension. |
| 422618004 (Continuous physical assessment) | is related to | PZA.AE.AH (Physical examination of whole body) | ICHI has no concept of a continuous or repeated assessment mode; PZA.AE.AH is the closest whole-body physical examination code. The SNOMED concept specifies an ongoing/serial monitoring process rather than a single discrete examination event. |
| 446573003 (Continuous positive airway pressure titration) | is related to | JTB.DE.AC (Artificial ventilation) | ICHI has no dedicated code for CPAP titration; JTB.DE.AC covers artificial ventilatory support but does not capture the titration/adjustment process specific to CPAP setup, so the relationship is relatedto rather than a direct match. |
| 448134000 (Continuous positive airway pressure to nonventilated lung) | is related to | JTB.DE.AC (Artificial ventilation) | CPAP to the nonventilated lung is a one-lung anaesthesia technique used during thoracic surgery to maintain oxygenation; ICHI has no code that captures this specific application. JTB.DE.AC is the nearest available code but is far broader and does not convey the selective single-lung target or the intraoperative context. |
| 386219007 (Control of hemorrhage in postpartum uterus) | is related to | NME.DK.AC (Tamponade of uterus) | ICHI has no generic "control of haemorrhage of uterus" code; NME.DK.AC (tamponade of uterus) is the closest structural intervention on the uterus for bleeding control, but it encodes only one specific method (tamponade) and does not capture the postpartum context or other haemostatic techniques. |
| 311786004 (Control of saliva technique) | is related to | KTC.SC.ZZ (Facilitating swallowing) | "Control of saliva technique" is a rehabilitation technique used in dysphagia/neurological management to manage saliva clearance, which is functionally linked to swallowing facilitation; however the ICHI code targets swallowing promotion rather than saliva control specifically. |
| 170509004 (Control of vectors) | is related to | UBQ.TM.ZZ (Environment modification to influence animals as vectors of disease) | "Control of vectors" is a broad public health concept covering all vector control strategies (chemical, biological, environmental, legislative), whereas UBQ.TM.ZZ covers only the environmental modification approach within the animal-vectors block; no single ICHI code encompasses the full scope of vector control. |
| 407695003 (Cord blood grouping) | is related to | DIA.AH.XA (Specimen collection of blood) | ICHI has DIA.AH.XA for blood specimen collection and NMM.AH.XE for fluid specimen collection from placenta/cord, but neither captures the specific combination of cord blood collection for ABO/Rh blood group typing. DIA.AH.XA is the closest structural analogue. |
| 816029007 (Corneal collagen cross linking) | is related to | BBB.DB.AE (Injection of agent into cornea) | Corneal collagen cross-linking applies riboflavin drops and UV-A light to stiffen corneal collagen and does not map well to any specific ICHI corneal code; BBB.DB.AE is the closest structural analogue but the mechanism (photochemical stiffening) differs substantially from injection. |
| 29843007 (Coronary atherectomy by laser) | is related to | HIA.JE.AF (Endovascular extraction of obstruction from coronary artery) | ICHI has no dedicated atherectomy code; HIA.JE.AF covers endovascular removal of coronary obstruction, which is conceptually related but does not specifically encode laser-based plaque ablation. |
| 315614006 (Coronary heart disease annual review) | is related to | PZB.AA.ZZ (General health assessment) | ICHI does not have a disease-specific periodic review code; PZB.AA.ZZ is the closest available concept but is non-specific to cardiovascular disease and does not capture the structured annual review nature of the SNOMED concept. |
| 233168007 (Corridor operation) | is related to | HFC.GA.AA (Ablation of cardiac conduction system) | The "Corridor operation" is a historical cardiac surgical procedure for atrial fibrillation that isolates a corridor of atrial tissue to maintain sinus-node-driven conduction; HFC.GA.AA is the closest available code, but the corridor operation involves surgical incisions/isolation rather than ablation per se. |
| 784055004 (Counseling for acquired polycystic kidney disease) | is related to | PYA.PP.ZZ (Genetic counselling) | Polycystic kidney disease counselling is most commonly genetic counselling in clinical practice; ICHI lacks any disease-specific or organ-specific counselling code for PKD, making genetic counselling the closest available concept, though acquired PKD may not always involve genetics. |
| 432081000124100 (Counseling for alternatives to driving) | is related to | SKA.PN.ZZ (Advising about using transportation) | SKA.PN.ZZ is the closest assignable code — it covers advising patients about transportation use, which overlaps conceptually with counselling about alternatives to driving, though advising is narrower in therapeutic depth than counselling, and "transportation use" is broader than the specific context of driving cessation. |
| 472261000124104 (Counseling for housing insecurity care plan participation barriers) | is related to | UEE.PN.ZZ (Advising about housing services, systems and policies) | No ICHI code directly represents counselling specifically about barriers to care plan participation related to housing insecurity. UEE.PN.ZZ is the closest available code as it addresses individual-level advisory interventions in the housing domain, but it does not capture the care plan barrier framing. |
| 472251000124101 (Counseling for inadequate housing care plan participation barriers) | is related to | UEE.PN.ZZ (Advising about housing services, systems and policies) | No ICHI code specifically addresses counselling for inadequate housing as a care plan barrier; UEE.PN.ZZ is the best available approximation as it targets advisory interventions within the housing services domain, though it is broader and does not encode the care plan participation barrier framing. |
| 171008008 (Counseling for loss of limb) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | ICHI has no specific code for counselling related to limb loss or amputation; there are codes for physical rehabilitation but none for the psychosocial or adjustment counselling following limb loss. PZB.PP.ZZ is the most appropriate residual code, though the relationship is approximate. |
| 83333004 (Creation of cardiac pacemaker pocket new site in subcutaneous tissue) | is related to | HFC.DN.AF (Percutaneous transluminal implantation of permanent endocardial pacemaker or defibrillator system) | The SNOMED concept describes creating a new subcutaneous pocket (a soft-tissue preparation step, often a revision/relocation procedure) distinct from initial device implantation; ICHI's HFC codes address full pacemaker system implantation rather than isolated pocket creation. |
| 447884008 (Creation of conduit between right ventricle of heart and vena cava) | is related to | HIB.LI.AA (Creation of cavopulmonary shunt) | No ICHI code exists for a direct right-ventricle-to-vena-cava conduit; HIB.LI.AA is the closest structural analogue in the same congenital cardiac surgery space, but it routes venous blood from the vena cava to the pulmonary artery (the reverse direction) and does not involve the right ventricle as an endpoint. |
| 405419000 (Creation of lower limb arteriovenous fistula) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | No ICHI code specifically encodes creation of an arteriovenous fistula; IZA.SN.AF covers management of an AV shunt rather than surgical creation of a fistula, and does not capture the lower-limb anatomical specificity. |
| 177962003 (Creation of omental flap) | is related to | KMA.JH.AA (Procurement of omental tissue for graft) | ICHI has no dedicated "omental flap creation" code; the closest concept is procurement of omental tissue for grafting, which captures harvesting the omentum as a vascularised tissue transfer, but does not fully encode the flap creation or transposition aspect. |
| 230815003 (Creation of shunt from intracranial subdural space) | is related to | AAE.LI.AA (Ventricular shunt) | ICHI has no specific code for subdural shunting; the subdural space is not a listed target in brain intervention codes. "Ventricular shunt" is the nearest intracranial CSF-diversion code but targets the ventricles rather than the subdural space. |
| 60510009 (Creation of subarachnoid/subdural-jugular shunt) | is related to | ABG.LI.AA (Spinal shunt) | The SNOMED concept describes a specific shunt diverting CSF from the subarachnoid or subdural space to the jugular vein. ICHI's "Spinal shunt" covers shunting from the spinal canal but is broader and does not specify the jugular vein as the drainage target. |
| 174881001 (Creation of valved conduit between atrium and ventricle of heart) | is related to | HAB.LI.AA (Creation of a conduit between right atrium and pulmonary artery) | The SNOMED concept describes creating a valved conduit between an atrium and a ventricle (intra-cardiac connection), which does not precisely match any ICHI code; HAB.LI.AA is the closest in spirit (conduit creation from right atrium), but it connects to pulmonary artery rather than a ventricle. |
| 426506002 (Creation of valved conduit between left ventricle of heart and pulmonary artery) | is related to | HBB.LI.AA (Creation of conduit between right ventricle and pulmonary arterial tree) | No ICHI code exists for a conduit from the left ventricle to the pulmonary artery specifically; HBB.LI.AA is the closest structural analogue but targets the right ventricle. |
| 24172008 (Crisis intervention) | is related to | ATF.RC.ZZ (Emotional support for global psychosocial functions) | ICHI has no specific "crisis intervention" concept; the closest thematic match captures the supportive nature, but ICHI does not model the time-limited, acute-response character of the SNOMED concept. |
| 391044009 (Crisis/short term interventions in mental health care - 24 hour intensive) | is related to | ATF.RC.ZZ (Emotional support for global psychosocial functions) | ICHI does not model service-delivery intensity or time-limited psychiatric crisis packages; emotional support is the closest thematic fit but cannot represent the "24-hour intensive" dimension. |
| 40337001 (Crushing of sympathetic nerve) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | ICHI has no destruction code for the sympathetic nerve; the available codes cover only excision and anaesthetic injection. ADA.ZZ.ZZ is the only unspecified sympathetic nervous system category, making it a related but non-equivalent fallback. |
| 231430008 (Cryodenervation of spinal facet joint of vertebra) | is related to | ABN.GA.AE (Percutaneous destruction of spinal nerve root) | Cryodenervation targets the medial branch nerves supplying the facet joint; ABN.GA.AE targets the spinal nerve root rather than the facet joint branch specifically, and ICHI does not encode the cryo means or facet joint target directly. |
| 420424006 (Cryotherapy of ocular surface) | is related to | BBA.GA.AA (Destruction of lesion or tissue of conjunctiva) | The ocular surface comprises conjunctiva and cornea; BBA.GA.AA is the closest anatomical and procedural match but does not cover the cornea, nor specify cryotherapy as the means, making this related rather than equivalent. |
| 171885009 (Cryotherapy to cervical sympathetic nerve) | is related to | BlockL5-ADB (Interventions on sympathetic nervous system, cervical) | ICHI has no destruction category for the cervical sympathetic nerve — the block only contains injection and excision codes. The block code is assigned as no assignable category captures nerve destruction at this target. |
| 167742002 (CSF chloride measurement) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | ICHI has no analyte-specific lab measurement codes for CSF constituents; chloride is a mineral/electrolyte, making this functional assessment code the closest conceptual relative, but it does not capture the CSF specimen type or laboratory analytic nature. |
| 430435008 (CT guided cementoplasty of acetabulum) | is related to | MKB.DN.AA (Implantation of device into pelvis) | ICHI has no specific cementoplasty code; "implantation of device" is an imprecise proxy for percutaneous cement injection, and there is no percutaneous variant. |
| 429872009 (CT guided cementoplasty of glenoid) | is related to | MDB.DN.AE (Percutaneous implantation of device into bone of shoulder region) | The glenoid is part of the shoulder region bone block and the percutaneous approach matches CT-guided delivery; "implantation of device" does not precisely represent cement injection. |
| 72716007 (CT guided localization) | is related to | XG2209 (Computed tomography guided) | ICHI does not have a dedicated "CT guided localization" procedure code; XG2209 is an extension/qualifier code meaning "computed tomography guided," not a standalone procedure category. |
| 700245000 (CT guided osteoplasty) | is related to | MBZ.ML.AE (Percutaneous vertebroplasty, not elsewhere classified) | ICHI's only percutaneous osteoplasty codes are bone-site specific (vertebra or mandibular ramus); MBZ.ML.AE is the closest in procedure type and approach but is restricted to the vertebral column. |
| 439538003 (CT guided percutaneous aspiration of pelvis) | is related to | KMA.JB.AE (Percutaneous drainage of peritoneal cavity) | ICHI has no dedicated code for percutaneous drainage or aspiration of the pelvic cavity specifically; KMA.JB.AE covers the peritoneal space including its pelvic component. |
| 442992005 (CT guided percutaneous drainage of abscess of retroperitoneum) | is related to | PAK.JB.AE (Percutaneous abdominal drainage) | ICHI has no dedicated code for the retroperitoneal space; PAK.JB.AE is the nearest topographic match covering the abdomen broadly, an imprecise mapping. |
| 241527001 (CT of nasopharynx) | is related to | JAM.BA.BA (Noncontrast x-ray of nasopharynx) | ICHI has no CT-specific code for the nasopharynx; the noncontrast X-ray is the closest structural match but the modality differs materially. |
| 1344612004 (CT of tracheobronchial tree with contrast) | is related to | JBF.BA.BD (Computerised tomography of lung with intravenous contrast) | ICHI has no dedicated CT code for the trachea or bronchus; the closest code targets lung parenchyma, anatomically distinct from the tracheobronchial tree. |
| 241600009 (CT pelvimetry) | is related to | MKB.BA.BD (Computerised tomography of pelvis with intravenous contrast) | ICHI has no pelvimetry code; pelvimetry is a specific obstetric measurement of pelvic dimensions, whereas MKB.BA.BD is classified under musculoskeletal interventions on bone of the pelvic region. |
| 275172002 (Curettage and cauterization of skin wart) | is related to | LAE.GA.AH (Destruction of skin and subcutaneous cell tissue of upper limb) | ICHI has no wart-specific or cauterization-specific skin codes; ICHI organizes skin interventions by body region, but a body-region-neutral destruction of skin lesion code does not exist. |
| 447891006 (Curettage of lesion of bone and grafting of bone) | is related to | MRB.JI.AA (Local excision of lesion of bone of unspecified site) | ICHI has no single code combining lesion curettage with bone grafting; MRB.JI.AA captures only the curettage/excision component, with the grafting element having no counterpart. |
| 11691000202107 (Customized communication) | is related to | SGG.PH.ZZ (Training in using communication devices and techniques) | "Customized communication" refers to individualized communication interventions; ICHI specifies the action as training and restricts the target to devices/techniques, making it a related but non-equivalent match. |
| 443884007 (Cutting and filing of toenail) | is related to | LBF.JG.AA (Debridement of nail, nail bed, or nail fold of toe) | ICHI has no code for routine nail cutting or filing; LBF.JG.AA is the closest procedural concept but debridement implies a therapeutic context rather than simple grooming. |
| 257865002 (Cyanoacrylic injection) | is related to | KBF.LA.AA (Occlusion of gastric varices) | Cyanoacrylate injection is most commonly performed for variceal occlusion (especially gastric varices); the SNOMED concept is substance/technique-focused and site-unspecified, making this a related rather than equivalent mapping. |
| 287341003 (Cystic hygroma incision) | is related to | DFO.JB.AA (Drainage of lymphatic vessel) | Cystic hygroma is a lymphatic malformation; ICHI has no specific incision code for lymphatic vessels, so DFO.JB.AA (Drainage) is the closest available code but represents drainage rather than formal incision. |
| 84501003 (Cytokine therapy) | is related to | DTB.DB.AF (Intravenous administration of immunological agent) | Cytokines are immunological agents typically given IV, but this code is route-specific and does not single out cytokines. |
| 69711002 (Dance therapy) | is related to | XG0NM7 (Art therapy) | ICHI has no dance therapy code; Art therapy is the nearest creative/expressive therapy concept. |
| 312775003 (Debridement of ulcer) | is related to | LZZ.JG.AA (Debridement of skin and subcutaneous cell tissue with incision, not elsewhere classified) | ICHI lacks an ulcer-specific debridement code; skin/SC tissue NEC debridement is the closest approximation for the most common ulcer types. |
| 302255003 (Debriefing therapy) | is related to | SDJ.PQ.ZZ (Psychotherapy for handling stress and other psychological demands) | ICHI lacks a debriefing-specific code; psychotherapy for stress is the closest conceptual match. |
| 232911003 (Decalcification of implanted atrioventricular valve) | is related to | HDM.MK.AA (Repair of congenitally malformed atrioventricular valve) | ICHI lacks a decalcification code; AV valve repair is the closest valve-preserving analogue but is scoped to congenital malformations. |
| 232767002 (Decalcification of implanted mitral valve) | is related to | HDF.MK.AA (Repair of mitral valve or subvalvar apparatus) | ICHI lacks a decalcification code; mitral valve repair is the closest valve-preserving analogue. |
| 232807005 (Decalcification of implanted tricuspid valve) | is related to | HDH.MK.AA (Repair of tricuspid valve or subvalvar apparatus) | ICHI lacks a decalcification code; tricuspid valve repair is the closest valve-preserving analogue. |
| 281784009 (Decompression fasciotomy of compartment of upper limb) | is related to | MFL.FC.AA (Release of ligament or fascia of wrist) | ICHI has no generic upper limb fasciotomy code; forearm/wrist fascial release represents the most common compartment site. |
| 36356000 (Decompression of endolymphatic sac) | is related to | CCA.LI.AA (Endolymphatic shunt) | Shunt placement achieves decompression but adds drainage; SNOMED concept is broader. |
| 442303003 (Deflation of lung) | is related to | JBF.LL.AE (Artificial pneumothorax for collapse of lung) | Artificial pneumothorax achieves intentional lung collapse but specifies one mechanism; the SNOMED concept is mechanism-neutral and broader in scope. |
| 302403001 (Delay of skin flap) | is related to | LZZ.JH.AA (Procurement of skin and subcutaneous tissue for graft or flap, not elsewhere classified) | A delay procedure surgically interrupts part of a flap's blood supply over staged sessions to condition it; ICHI has no dedicated code for this technique, and the related procurement code captures harvesting rather than vascular conditioning. |
| 309568009 (Delayed discharge - social services) | is related to | UEO.RG.ZZ (Providing general social support services, systems and policies) | ICHI has no code that captures delayed hospital discharge related to pending social services; this is the closest thematic match, covering the social services dimension only. |
| 386255004 (Delirium management) | is related to | ATC.AA.ZZ (Assessment of awareness and alertness functions) | ICHI lacks any category code specifically for delirium management; the consciousness/awareness block captures only assessment rather than the full management bundle. |
| 409006000 (Delivery care) | is related to | NME.AI.AH (Monitoring of delivery) | ICHI has no code for delivery care as a whole care bundle; monitoring of delivery captures only a surveillance component rather than the full clinical management scope. |
| 225976003 (Demonstrating patience with the client) | is related to | ATH.PH.ZZ (Training of temperament and personality) | ICHI has no code for a clinician demonstrating patience as an interpersonal therapeutic behaviour; the closest available code addresses training of temperament and personality functions, which is conceptually adjacent but represents a different action (training a patient's traits rather than the clinician modelling patience). |
| 225975004 (Demonstrating tact with the client) | is related to | ATH.PH.ZZ (Training of temperament and personality) | ICHI does not encode clinician interpersonal attributes such as tact; training of temperament and personality is the nearest structural neighbour, but the SNOMED concept describes a clinician behaviour, not a patient-targeted training intervention. |
| 361176008 (Denervation of uterosacral nerves) | is related to | NME.GA.AC (Paracervical uterine denervation) | Both codes describe uterine denervation procedures, but "paracervical uterine denervation" targets the paracervical nerve plexus rather than the uterosacral ligament nerves; these are anatomically distinct nerve targets (the SNOMED concept typically refers to LUNA — laparoscopic uterosacral nerve ablation). |
| 43341003 (Dental history taking) | is related to | KAE.AE.AC (Dental examination) | ICHI has no code for dental history taking specifically; KAE.AE.AC is the closest dental-specific assessment code but covers physical examination, not history taking, so it is related but not equivalent. |
| 27797007 (Dental implant connecting bar) | is related to | KAE.DN.AC (Prosthetic dental implant) | The SNOMED concept refers to a specific prosthetic device component (a bar connecting implants for overdenture retention); ICHI classifies interventions, not devices, so KAE.DN.AC (the prosthetic dental implant procedure) is the closest related code. |
| 768835002 (Depression care management) | is related to | PZB.TD.ZZ (Case coordination) | Depression care management is a structured, coordinated clinical care activity that most closely corresponds to "Case coordination" under whole-person interventions; not an exact equivalence because ICHI's code is condition-agnostic, and the SNOMED concept also encompasses direct clinical management. |
| 401174001 (Depression management program) | is related to | PZB.TB.ZZ (Individualised planning) | A depression management program is a structured, individually tailored plan of care for managing depression, which most closely aligns with "Individualised planning" — a whole-person code covering the design of a personalised care plan; the ICHI code does not specify the condition or the programmatic delivery context. |
| 239230008 (Destruction of lesion of bursa) | is related to | MRS.JI.AA (Local excision of lesion of soft tissue of unspecified site) | ICHI has no destruction (GA) code for bursa; the closest related code uses local excision rather than destruction and lacks anatomical specificity for bursa. |
| 54872009 (Destruction of lesion of cerebral meninges) | is related to | AAC.JI.AA (Local excision of lesion of cerebral meninges) | The cerebral meninges block contains no destruction (GA) category; AAC.JI.AA shares the same anatomical target and lesion focus but differs in action (excision vs. destruction). |
| 23476008 (Destruction of lesion of chest wall) | is related to | PAF.JI.AA (Local excision of lesion of chest wall) | ICHI has no dedicated destruction code for the chest wall; PAF.JI.AA is the most closely related procedure at the same anatomical site but represents surgical excision rather than destruction. |
| 10683007 (Destruction of lesion of heart) | is related to | HFC.GA.AA (Ablation of cardiac conduction system) | ICHI has no generic "destruction of lesion of heart" code; HFC.GA.AA is the nearest destruction-class cardiac intervention but is specific to the cardiac conduction system rather than a general cardiac lesion. |
| 172703006 (Destruction of lesion of middle ear) | is related to | CBA.JI.AC (Local excision of lesion of middle ear, not elsewhere classified) | ICHI has no destruction (GA) code for the middle ear; the closest available action is local excision, procedurally distinct from destruction. |
| 178238003 (Destruction of lesion of muscle) | is related to | MRM.JI.AA (Local excision of lesion of muscle of unspecified site) | ICHI does not have a destruction (GA) code for muscle at any site; the only lesion-specific muscle codes use local excision (JI), a related but distinct action. |
| 31468007 (Destruction of lesion of spleen) | is related to | DJA.JI.AA (Local excision of lesion of spleen) | ICHI has no destruction-of-lesion code for the spleen; the spleen block only offers local excision of a lesion as the closest lesion-targeted intervention. |
| 172139005 (Destruction of orbital lesion) | is related to | BAM.JI.AA (Local excision of lesion of orbit) | ICHI has no orbital lesion destruction code; the orbit block (BAM) contains only excision, aspiration, decompression, imaging, and repair codes. Local excision of a lesion of the orbit is closest in intent but differs in technique. |
| 450341007 (Destruction of splanchnic sympathetic nerve) | is related to | ADC.JK.AA (Total excision of thoracic sympathetic nerve) | Splanchnic nerves are thoracic sympathetic nerves, and ICHI has no destruction action code for sympathetic nerves — only excision and anaesthetic injection. ADC.JK.AA is the closest structural match but specifies a different action and a specific approach. |
| 71513004 (Destruction of sympathetic nerve by injection of neurolytic agent) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | ICHI contains injection codes for sympathetic nerves only with anaesthetic agents, not neurolytic agents; there is no action code in ICHI for chemical neurolysis by injection. ADA.ZZ.ZZ captures the correct target without specifying action or means. |
| 2459003 (Destructive procedure of artery of upper extremity) | is related to | ICA.LA.AA (Occlusion of artery of upper limb) | ICHI does not have a generic "destructive procedure of artery" code; occlusion is the closest representable destructive intervention on an upper limb artery, but captures only one modality rather than the full range of destructive approaches. |
| 60263002 (Destructive procedure of blood vessel) | is related to | IZE.LA.AA (Occlusion of blood vessel, not elsewhere classified) | The SNOMED concept is a high-level grouper covering any destructive method on any blood vessel; ICHI's closest non-site-specific code is occlusion of blood vessel NEC, which represents one major destructive modality but does not encompass ablation, embolisation, or other techniques as a class. |
| 14553004 (Destructive procedure of orbit) | is related to | BAM.JI.AA (Local excision of lesion of orbit) | ICHI has no dedicated destruction code for the orbit (the BAM block contains only excision, biopsy, decompression, and reconstruction codes), so the closest available code is local excision of a lesion of the orbit. |
| 30162009 (Destructive procedure of pericardium) | is related to | HFF.JI.AA (Local excision of lesion of pericardium) | ICHI has no destruction code for the pericardium; the pericardium block (HFF) contains only biopsy, injection, release, incision, excision, and repair codes. Local excision of a pericardial lesion is the closest available action that achieves tissue elimination. |
| 10330005 (Destructive procedure on artery of head and neck) | is related to | IBA.LA.AA (Occlusion of artery of head and neck) | ICHI has no GA (destruction) action code for arteries of the head and neck; occlusion is the closest functionally equivalent procedure — ligation and surgical occlusion are the primary means of "destroying" arterial patency. |
| 65290008 (Destructive procedure on middle ear) | is related to | BlockL4-CBA (Interventions on middle ear) | ICHI contains no assignable destruction/GA action category for the middle ear — the block BlockL4-CBA covers all interventions on the middle ear but is a non-assignable organisational block. No procedure code with a destruction action (GA) exists for the middle ear in ICHI, so the block is the best available reference, assigned as related rather than equivalent. |
| 14001001 (Destructive procedure on parathyroid) | is related to | BlockL5-EBB (Interventions on parathyroid gland) | ICHI contains no assignable destruction/GA action category for the parathyroid gland — the block BlockL5-EBB groups all parathyroid interventions (biopsy, excision, transplant, scan) but no destruction code exists. The block is the closest organisational reference available, assigned as related rather than equivalent. |
| 445132000 (Detection of Helicobacter pylori using polymerase chain reaction technique) | is related to | XG4U02 (Viral nucleic acid amplification test) | ICHI has no specific code for H. pylori PCR; XG4U02 covers nucleic acid amplification (the technique used) but is scoped to viral pathogens, not bacterial, making it related but not equivalent. No bacterial nucleic acid amplification code exists in ICHI. |
| 444975002 (Detection of Treponema pallidum using polymerase chain reaction technique) | is related to | XG4U02 (Viral nucleic acid amplification test) | ICHI's XG4U02 covers nucleic acid amplification (the PCR modality) but is explicitly scoped to viruses, whereas T. pallidum is a bacterium (spirochete); no T. pallidum-specific PCR/molecular test exists in ICHI, making this only a related molecular-detection concept. |
| 250463004 (Detection of virus particle) | is related to | XG8EX8 (Rapid immunoassay detecting viral proteins) | Detection of intact virus particles implies detection of virion structure (antigen, electron microscopy, or culture), and XG8EX8 (immunoassay for viral proteins) is the closest available ICHI concept for direct viral detection, though it specifies a protein immunoassay method rather than particle detection per se. |
| 250464005 (Determination of organism growth) | is related to | XG50T0 (Antimicrobial susceptibility testing) | ICHI has no code specifically for microbial culture or organism growth determination; XG50T0 "Antimicrobial susceptibility testing" is the closest laboratory test code in the essential lab tests block as it involves culturing organisms to assess their growth in the presence of antibiotics, but the SNOMED concept is about detecting/measuring organism growth itself rather than susceptibility, making this a related but not equivalent match. |
| 386259005 (Developmental enhancement: child) | is related to | AT2.PH.ZZ (Training of global mental functions, not elsewhere classified) | "Developmental enhancement: child" is a broad nursing/health promotion intervention aimed at optimising a child's overall development across cognitive, motor, and social domains; AT2.PH.ZZ (training of global mental functions) is the closest ICHI category covering broad developmental training, but ICHI does not have a dedicated paediatric developmental enhancement code and the concept also spans physical/psychomotor domains not captured by this single code. |
| 228534002 (Developmental therapy) | is related to | AUC.PH.ZZ (Training of psychomotor functions) | Developmental therapy is an interdisciplinary therapeutic approach targeting motor, cognitive, and functional skill acquisition; AUC.PH.ZZ (training of psychomotor functions) captures the dominant motor-development component, but developmental therapy also encompasses cognitive, communication, and adaptive skills that extend beyond this single ICHI code. |
| 118453005 (Dewebbing procedure) | is related to | LAE.MK.AA (Repair of skin and subcutaneous cell tissue of upper limb) | "Dewebbing procedure" is a body-site-unspecified SNOMED grouper concept that encompasses both finger and toe syndactyly release; mapping to the upper limb skin repair code is only one possible instantiation, and ICHI has no site-unspecified dewebbing code, making this a related-to approximation that would need disambiguation by site before a precise ICHI code could be assigned. |
| 171183004 (Diabetes mellitus screening) | is related to | VDB.VF.ZZ (Alert concerning screening behaviours) | ICHI does not have a disease-specific screening code for diabetes mellitus; the closest domain is the VDB block (Interventions on screening behaviours), but VDB.VF.ZZ (Alert concerning screening behaviours) captures the act of prompting or alerting individuals toward health screening, which overlaps only partially with a clinical diabetes screening intervention. A public-health framing of a screening alert is the nearest available code, but the match is approximate rather than equivalent. |
| 185760009 (Diabetes monitoring telephone invite) | is related to | VD1.VB.ZZ (Awareness raising to influence health service-related behaviours, unspecified) | There is no ICHI code for patient recall or appointment invitation by telephone. VD1.VB.ZZ covers awareness-raising actions aimed at influencing use of health services, which is the closest functional intent, but it represents a population-level public health action rather than an individual administrative outreach call. |
| 185758007 (Diabetes monitoring third letter) | is related to | VD1.VB.ZZ (Awareness raising to influence health service-related behaviours, unspecified) | A written recall letter is an administrative patient-outreach action with no direct ICHI equivalent. VD1.VB.ZZ is the nearest concept in intent (influencing health service uptake), but it operates at a population/behavioural level rather than encoding the specific administrative act of sending a follow-up letter to an individual patient. |
| 185759004 (Diabetes monitoring verbal invite) | is related to | VD1.VB.ZZ (Awareness raising to influence health service-related behaviours, unspecified) | A verbal invitation for a diabetes monitoring appointment is an individual administrative act with no precise ICHI equivalent. Like the telephone and letter invite variants, VD1.VB.ZZ captures the general intent of encouraging health service use, but the ICHI code is substantially broader and population-oriented. |
| 385804009 (Diabetic care) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | "Diabetic care" is a broad administrative/organisational concept covering the ongoing management of a patient with diabetes rather than a specific clinical intervention. PZB.ZZ.ZZ is the best available ICHI approximation as an unspecified whole-person health management encounter, but neither the disease specificity (diabetes) nor the care-package nature of the SNOMED concept is captured. |
| 385806006 (Diabetic care management) | is related to | ETK.AA.ZZ (Assessment of endocrine gland functions) | ICHI has no code for a holistic chronic disease management programme; the closest functional target is the endocrine system, but ETK.AA.ZZ covers only the assessment action component of "care management," not its full coordinating, monitoring and therapeutic scope. The SNOMED concept is a broad care programme encompassing multiple actions that ICHI does not represent as a single code. |
| 394683006 (Diabetic foot risk assessment) | is related to | LTC.AA.ZZ (Assessment of protective functions of the skin) | ICHI lacks a dedicated diabetic foot risk assessment code; LTC.AA.ZZ (assessment of protective skin functions) partially overlaps with the skin-integrity component of diabetic foot screening, but the SNOMED concept also encompasses vascular and neurological risk evaluation that is not captured here, making this only an approximate functional relationship. |
| 711027007 (Diabetic ulcer care) | is related to | LAG.JG.AH (Debridement of skin and subcutaneous cell tissue of the lower limb, without incision) | ICHI has no single code for "diabetic ulcer care" as a composite wound-management intervention; LAG.JG.AH represents the most common procedural component (non-incisional debridement of lower limb skin), but the SNOMED concept encompasses dressing, offloading, infection management, and monitoring that go well beyond debridement alone. |
| 241684003 (Diaphanography of breast) | is related to | LCA.BA.BJ (Ultrasound of breast) | Diaphanography (transillumination of the breast using near-infrared light) is a distinct imaging modality not represented in ICHI; the imaging interventions on breast block contains mammography, MRI, nuclear imaging, and ultrasound, but none corresponds to transillumination/diaphanography, making LCA.BA.BJ only a related but non-equivalent match. |
| 57474008 (Digital examination of enterostomy stoma) | is related to | KBK.AE.AB (Transabdominal endoscopy of small intestine, not elsewhere classified) | ICHI has no code for digital (finger) examination of an enterostomy stoma specifically; the closest available codes are KBK.AE.AD (Endoscopy of small intestine NEC) or KBX.AE.AC (Digital examination of anus), neither of which captures stoma examination by finger. KBK.AE.AB is used as a relatedto placeholder representing physical examination access to the small intestine. |
| 225705006 (Dilatation of lacrimal punctum) | is related to | BAD.FA.AA (Incision of lacrimal apparatus) | ICHI's "Interventions on lacrimal apparatus" block (BlockL5-BAD) contains no dedicated dilatation code for the lacrimal punctum; BAD.FA.AA (incision of lacrimal apparatus) is the closest procedural intervention on the same anatomical target but represents a different action (incision rather than dilatation), making it related but not equivalent. |
| 700233009 (Dilatation of stomach using fluoroscopic guidance) | is related to | KBF.LH.AD (Endoscopic dilatation of stomach with insertion of gastroduodenal prosthesis) | ICHI lacks a standalone fluoroscopic dilatation of stomach code; KBF.LH.AD is the only stomach dilatation code but it specifies endoscopic approach with prosthesis insertion, which differs in both means (endoscopy vs. fluoroscopy) and scope (adds stent/prosthesis), making it related rather than equivalent. |
| 72356007 (Dilation and curettage of cervical stump) | is related to | NMF.LG.AC (Dilatation of cervical canal) | A cervical stump D&C involves dilating the remaining cervical canal (after a supracervical hysterectomy) and curetting its lining; ICHI NMF.LG.AC captures the dilatation of the cervical canal but does not encode the curettage component, nor the specific "stump" context, so it is related but not equivalent. |
| 431836005 (Dilation of bile duct using fluoroscopic guidance) | is related to | KCM.LH.AF (Percutaneous transluminal dilatation with insertion of device into bile duct) | Fluoroscopic guidance is used in percutaneous transluminal bile duct procedures (PTBD/PTC), making KCM.LH.AF the closest ICHI match; however, ICHI specifies percutaneous approach with device insertion, while the SNOMED concept focuses on fluoroscopic guidance and does not require device insertion, so the match is related but not equivalent. |
| 432274009 (Dilation of colon and rectum using fluoroscopic guidance) | is related to | KBZ.LG.AD (Endoscopic dilatation of large intestine, not elsewhere classified) | ICHI has separate codes for endoscopic dilatation of colon (KBP.LG.AD) and rectum (KBW.LG.AD) but no combined colon-and-rectum code; KBZ.LG.AD (large intestine, NEC) is the closest single code that encompasses both sites, though it specifies an endoscopic rather than fluoroscopic means. |
| 449396003 (Dilation of mature T tube tract) | is related to | KCM.LG.AJ (Percutaneous endoscopic dilatation of biliary duct) | The T-tube tract refers to the percutaneous biliary tract established by a T-tube drain; dilating it is a related but distinct concept from dilating the biliary duct itself. KCM.LG.AJ is the closest available code, but SNOMED specifically targets the existing external tract rather than the duct lumen. |
| 86769003 (Dilation of nasopharynx) | is related to | KAR.LG.AC (Dilatation of oral pharynx) | The JAM (nasal pharynx) block has no dilatation code of any kind; the nearest assignable ICHI code is KAR.LG.AC (Dilatation of oral pharynx), which covers the oropharynx rather than the nasopharynx — an adjacent but anatomically distinct structure. |
| 301087006 (Dilation of pylorus) | is related to | KBF.LH.AD (Endoscopic dilatation of stomach with insertion of gastroduodenal prosthesis) | ICHI has no standalone "dilatation of pylorus" code; the stomach block (KBF) offers KBF.LH.AD (endoscopic dilatation of stomach with stent insertion) as the nearest functional analogue, but it specifies the stomach as target, mandates a prosthesis, and requires an endoscopic approach. |
| 431835009 (Dilation of trachea using fluoroscopy guidance) | is related to | JBA.LG.AD (Endoscopic dilatation of trachea) | ICHI contains no fluoroscopy-guided tracheal dilation code; the closest available code captures tracheal dilation by endoscopic approach, which is a different technique than fluoroscopy guidance, so the match is related but not directly equivalent or even approximately so. |
| 433157005 (Dilation of transjugular intrahepatic portosystemic shunt stent using fluoroscopic guidance) | is related to | IEF.LH.AF (Percutaneous transluminal dilatation with insertion of device into portal vein and branches) | A TIPS is a percutaneous intrahepatic shunt connecting the portal vein to a hepatic vein; dilating its stent under fluoroscopy is structurally closest to IEF.LH.AF, but ICHI does not have a dedicated code for TIPS or for shunt-stent revision, and the target in ICHI is the portal vein rather than the shunt conduit itself. |
| 363086001 (Dilation of upper respiratory tract) | is related to | JAN.LG.AD (Endoscopic dilatation of larynx) | ICHI has no generic "dilation of upper respiratory tract" code; the upper respiratory tract block contains nose, sinuses, nasopharynx, and larynx, none of which has a combined or unspecified dilatation code. The larynx is the most clinically common site for upper airway dilatation procedures (e.g., subglottic stenosis dilation), making JAN.LG.AD the most reasonable approximation. |
| 431910002 (Dilation of ureter using fluoroscopic guidance) | is related to | NAE.LH.AF (Percutaneous transluminal dilatation with insertion of device into ureter) | Fluoroscopic guidance for ureteral dilation is characteristically used in the percutaneous transluminal (antegrade) approach with balloon catheter/stent placement, making NAE.LH.AF the closest structural match; however, ICHI includes device insertion (stent) in this code and has no means code for fluoroscopy. |
| 1351654008 (Direct selective laser trabeculoplasty of left eye) | is related to | BBE.GA.AH (Destruction of anterior chamber of eye) | ICHI contains no specific trabeculoplasty code; selective laser trabeculoplasty applies laser energy to the trabecular meshwork in the anterior chamber angle to facilitate aqueous outflow, making destruction of the anterior chamber of the eye the closest available code, though it does not capture the trabecular meshwork target, the laser means, or the laterality (left eye would require an extension code). |
| 1351656005 (Direct selective laser trabeculoplasty of right eye) | is related to | BBE.GA.AH (Destruction of anterior chamber of eye) | ICHI has no trabeculoplasty code and BBE.GA.AH is the closest available code for a laser-based destructive intervention at the anterior chamber; laterality (right eye) and the specific laser means are not represented in this code and would require extension codes. |
| 37011005 (Direct thrombectomy of iliac vein by abdominal and leg incision) | is related to | IZE.JE.AA (Extraction of obstruction of blood vessel, not elsewhere classified) | ICHI has no specific code for extraction of obstruction from abdominal/pelvic vein — the iliac vein block (IED) lacks a thrombectomy/extraction code entirely — so the NEC blood vessel residual code is the closest available; it captures the procedure type (open thrombectomy) but specifies neither the iliac vein target nor the combined abdominal-and-leg approach of the SNOMED concept. |
| 63372007 (Direct thrombectomy of iliac vein by abdominal incision) | is related to | IZE.JE.AA (Extraction of obstruction of blood vessel, not elsewhere classified) | No dedicated ICHI code exists for open thrombectomy of an abdominal/pelvic vein; the NEC code IZE.JE.AA is the best available match for the procedure type, but it is a residual catch-all that does not capture the iliac vein target or the abdominal open approach. |
| 306390007 (Discharge by Accident and Emergency doctor) | is related to | XG38D0 (Discharge planning) | The SNOMED concept describes the act of discharging a patient from A&E by a specific clinician role, which is a care transition/administrative act rather than a planned discharge process; XG38D0 is the closest ICHI match but is an extension code for discharge planning rather than a code for the act of discharge itself, making this a related-but-not-equivalent mapping. |
| 306524006 (Discharge by hospital-based midwife) | is related to | XG38D0 (Discharge planning) | ICHI contains no code for the act of patient discharge itself performed by a named clinician role; XG38D0 "Discharge planning" is the closest concept but captures planning for discharge rather than the discharge act, and does not encode the midwife role. |
| 306437007 (Discharge by infectious diseases physician) | is related to | XG38D0 (Discharge planning) | ICHI has no code for the discharge act performed by a specific clinician; XG38D0 "Discharge planning" is related but refers to planning rather than the discharge event itself, and the infectious diseases physician role is not encoded anywhere in ICHI. |
| 306404005 (Discharge by intensive care specialist) | is related to | XG38D0 (Discharge planning) | ICHI does not model patient discharge as a clinical act attributable to a named specialty; XG38D0 is the nearest available term but describes discharge planning rather than the discharge event, and the intensive care specialist role cannot be represented. |
| 306518000 (Discharge by liaison nurse) | is related to | XG38D0 (Discharge planning) | ICHI has no code for patient discharge performed by a specific nurse role; XG38D0 "Discharge planning" is the closest available concept but differs in meaning (planning vs. execution of discharge) and does not distinguish the liaison nurse role. |
| 306387001 (Discharge by marriage guidance counselor) | is related to | XG38D0 (Discharge planning) | ICHI has no code for discharge by a marriage guidance counselor or any analogous allied health/counseling role; XG38D0 "Discharge planning" is the only structurally related term in ICHI, but it does not capture the discharge act itself nor the specific counselor role. |
| 306548002 (Discharge by orthoptist) | is related to | XG38D0 (Discharge planning) | ICHI has no code representing the act of patient discharge by a specific clinician type; XG38D0 "Discharge planning" is in the same semantic domain (end-of-episode administrative process) but refers to the planning activity rather than the discharge act itself, and does not capture the orthoptist-specific dimension. |
| 306549005 (Discharge by orthotist) | is related to | XG38D0 (Discharge planning) | ICHI does not represent patient discharge as a discrete act performed by a named profession, and XG38D0 covers only discharge planning, not the discharge decision or act by an orthotist specifically. |
| 306520002 (Discharge by outreach nurse) | is related to | XG38D0 (Discharge planning) | ICHI has no code for patient discharge performed by a nurse or outreach nurse; XG38D0 is the closest available concept in the same administrative-process domain, but it denotes planning rather than the act of discharge and carries no performer-type specificity. |
| 306407003 (Discharge by pain management specialist) | is related to | XG38D0 (Discharge planning) | ICHI does not encode discharge events by specialty; XG38D0 is the nearest available code in the discharge/end-of-episode space, though it captures planning rather than the formal discharge decision by a pain management specialist. |
| 306442004 (Discharge by palliative care physician) | is related to | XG38D0 (Discharge planning) | ICHI has no code for discharge performed by a palliative care physician; XG38D0 is the closest available concept but refers to discharge planning as an activity, not the physician-initiated discharge act, and the palliative care specialty dimension is entirely absent from ICHI. |
| 306453005 (Discharge by psychiatrist) | is related to | XG38D0 (Discharge planning) | ICHI has no code representing the act of formally discharging a patient from a clinician's care; XG38D0 "Discharge planning" is the closest concept but is an extension qualifier describing planning activity rather than the discharge act itself, and does not capture the psychiatrist-specific performer dimension. |
| 306554001 (Discharge by radiographer) | is related to | XG38D0 (Discharge planning) | ICHI has no code representing formal discharge by a specific clinician type; XG38D0 "Discharge planning" is the nearest available concept but is an extension modifier and does not represent the act of discharge nor the radiographer performer role. |
| 306460004 (Discharge by radiologist) | is related to | XG38D0 (Discharge planning) | ICHI has no code representing formal discharge by a named clinician; XG38D0 "Discharge planning" is structurally related as the closest discharge-domain concept, but it describes planning activity and carries no information about the radiologist performer. |
| 306443009 (Discharge by rehabilitation physician) | is related to | XG38D0 (Discharge planning) | ICHI lacks a code for the administrative act of discharging a patient by a rehabilitation physician; XG38D0 "Discharge planning" is the nearest discharge-related ICHI concept but is an extension qualifier for other codes rather than a standalone intervention representing the discharge event. |
| 306521003 (Discharge by research nurse) | is related to | XG38D0 (Discharge planning) | No ICHI code exists for discharge performed by a research nurse; XG38D0 "Discharge planning" is the closest available term in the discharge domain but is an extension modifier and does not represent either the discharge act itself or the research nurse performer role. |
| 306564005 (Discharge from anesthetic service) | is related to | XG38D0 (Discharge planning) | ICHI contains only the generic "Discharge planning" extension code (XG38D0) with no specialty-specific discharge codes; this code captures the discharge process but refers to the planning activity rather than the act of discharge itself, and does not specify the anesthetic service context. |
| 306565006 (Discharge from clinical oncology service) | is related to | XG38D0 (Discharge planning) | No oncology- or specialty-specific discharge code exists in ICHI; XG38D0 (Discharge planning) is the closest available code but represents the planning process generically, not the act of discharging from an oncology service specifically. |
| 700194007 (Discharge from community care service) | is related to | XG38D0 (Discharge planning) | ICHI has no code for discharge from community care; XG38D0 (Discharge planning) is the only discharge-related ICHI code and addresses the planning aspect of discharge generically, without reference to the community care setting. |
| 306567003 (Discharge from family planning service) | is related to | XG38D0 (Discharge planning) | ICHI contains no family planning service-specific discharge code; the nearest match is the generic XG38D0 (Discharge planning), which does not reflect the family planning specialty context encoded in the SNOMED concept. |
| 306676000 (Discharge from hospice) | is related to | XG38D0 (Discharge planning) | ICHI has no hospice- or palliative care-specific codes of any kind, and no specialty-specific discharge codes; XG38D0 (Discharge planning) is the only discharge-related code available but covers only the planning process in a generic context, not discharge from a hospice setting. |
| 308283009 (Discharge from hospital) | is related to | XG38D0 (Discharge planning) | ICHI contains no code for the administrative act of discharging a patient from hospital; XG38D0 "Discharge planning" is an extension code describing the planning process leading up to discharge, which is semantically related but not equivalent to the discharge event itself. |
| 306620008 (Discharge from psychotherapy service) | is related to | XG38D0 (Discharge planning) | ICHI has no code for discharge from a specific specialty service; XG38D0 (Discharge planning) is an extension qualifier in the "Nature of the intervention" block and covers planning for discharge rather than the administrative act of discharging from psychotherapy specifically. |
| 306647003 (Discharge from radiology service) | is related to | XG38D0 (Discharge planning) | ICHI contains no code for discharge from radiology or any imaging/diagnostic service; XG38D0 (Discharge planning) is the closest available concept but is a supplementary extension qualifier about discharge planning in general, not an act of discharging from a radiology episode of care. |
| 308018004 (Discharge from rehabilitation service) | is related to | XG38D0 (Discharge planning) | ICHI has XG4691 (Rehabilitation and Habilitation) as a nature-of-intervention extension code, but neither it nor XG38D0 (Discharge planning) captures the act of ending a rehabilitation episode; XG38D0 is the closest concept, remaining only relationally connected to the SNOMED meaning. |
| 306808003 (Discharge from stroke service) | is related to | XG38D0 (Discharge planning) | ICHI has no code for stroke units or specialty-specific discharge; XG38D0 (Discharge planning) is the nearest concept in ICHI but covers discharge planning generically as an extension qualifier rather than representing administrative discharge from a stroke service. |
| 306648008 (Discharge from surgical service) | is related to | XG38D0 (Discharge planning) | ICHI does not classify discharge from a surgical service as a distinct intervention; XG38D0 (Discharge planning) is the best available candidate but is a supplementary extension code about the planning nature of an intervention, not the administrative act of ending a surgical care episode. |
| 405807003 (Discharge to convalescence) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no code for discharge to a convalescent setting specifically; "Referral to health provider" is the closest available concept, covering the act of directing a patient to another service or provider, which overlaps functionally with a discharge-to-convalescence disposition, but does not capture the convalescent destination or the discharge act itself. |
| 304654007 (Discussion about activity of daily living) | is related to | SM1.PN.ZZ (Advising about self care, unspecified) | "Discussion about activity of daily living" is a conversational/advisory clinical encounter focused on self-care and ADL performance; SM1.PN.ZZ is the closest ICHI code in the self-care interventions block, but the SNOMED concept emphasises a two-way discussion rather than one-directional advising, and "activities of daily living" is broader than "self care" as classified in ICHI. |
| 713602009 (Discussion about end of life care planning) | is related to | PZB.TB.ZZ (Individualised planning) | ICHI has no code for advance care planning, palliative care planning, or end of life discussion. PZB.TB.ZZ (Individualised planning) under "Interventions on whole person" is the closest structural match — it captures the care-planning dimension — but it is not specific to end of life, making this a related rather than equivalent mapping. |
| 713255007 (Discussion about female genital mutilation) | is related to | VBB.PP.ZZ (Counselling about family and partner violence behaviours) | ICHI has no code for FGM-specific discussion or counselling; FGM is classified by WHO as a harmful practice and a form of gender-based violence. VBB.PP.ZZ is the best available fit within the violence-related behaviours chapter, but it does not capture the gender-based or harmful-traditional-practice specificity of FGM discussions. |
| 304658005 (Discussion about functional activity) | is related to | VEB.PP.ZZ (Counselling about physical activity behaviours) | "Functional activity" in clinical use refers broadly to a patient's capacity to perform daily activities (ADLs/IADLs), which is wider than physical activity behaviour change. VEB.PP.ZZ is the closest available counselling code but is scoped to physical activity behaviours — a narrower and partially overlapping concept — making this a related rather than equivalent mapping. |
| 707737009 (Discussion about priorities for care) | is related to | PZB.TB.ZZ (Individualised planning) | There is no ICHI code specifically for discussing care priorities; "Individualised planning" (under Interventions on whole person) is the closest match, capturing the collaborative goal-setting and prioritisation of care needs for an individual, though it encompasses a broader planning activity rather than a focused discussion act. |
| 1304231001 (Discussion about result of investigation) | is related to | PZB.AN.ZZ (Interview in relation to the whole person) | ICHI has no specific code for communicating or discussing investigation results with a patient; "Interview in relation to the whole person" is the nearest available category at the whole-person level that can encompass a clinician-patient encounter where test/investigation results are discussed, but it is considerably broader than the specific SNOMED concept. |
| 427273003 (Dispensing of blood product) | is related to | DIA.DG.AF (Transfusion of blood or blood products) | ICHI codes blood product activity specifically as transfusion, whereas SNOMED's "dispensing" refers to the supply/issue action (e.g. from a blood bank) rather than the clinical administration; concepts overlap in subject matter but differ in action. |
| 174746008 (Division of annular pancreas) | is related to | KCO.FA.AA (Pancreatotomy) | ICHI has no code for division of annular pancreas specifically; pancreatotomy represents an incision/division of pancreatic tissue but does not capture the congenital anomaly context or the precise operative target of an annular pancreas. |
| 6399001 (Division of arteriovenous fistula with ligation) | is related to | IZE.LA.AA (Occlusion of blood vessel, not elsewhere classified) | ICHI has no code for division of an AV fistula with ligation; occlusion captures the ligation/closure intent of the procedure but does not encode the division component. |
| 69009003 (Division of cartilage of spine) | is related to | MBZ.FA.AA (Osteotomy of spine, not elsewhere classified) | ICHI has no code specifically for division of spinal cartilage; osteotomy of spine is the closest available generic spinal division procedure, but it targets bone rather than cartilage. |
| 16508004 (Division of congenital web of pharynx) | is related to | KAR.FC.AA (Release of oral pharyngeal adhesions) | The correct anatomical target (oral pharynx) is matched and the action (release of a tissue band/membrane) is functionally analogous, but ICHI specifies "adhesions" rather than a congenital web; the closest congenital-web code (JAN.FC.AC) targets the larynx. |
| 310219006 (Division of constricting band on limb) | is related to | LZZ.FC.AA (Release of scar or web contracture of skin, not elsewhere classified) | A constricting band on a limb is functionally released via incision or division of constrictive skin/soft tissue, aligning with releasing a "web contracture of skin," though ICHI specifies "scar or web contracture" and has no limb-site specificity. |
| 240988007 (Division of flap) | is related to | LZZ.FA.AA (Incision of skin and subcutaneous cell tissue, not elsewhere classified) | Dividing a surgical flap (cutting the pedicle connection after a flap transfer) is a skin/soft-tissue incision procedure; LZZ.FA.AA is the closest available ICHI code for skin incision NEC, an approximate action-on-skin match. |
| 84523004 (Division of otosclerotic process of middle ear) | is related to | CBF.FC.AC (Release of stapes) | Otosclerosis characteristically fixates the stapes footplate, and surgical treatment involves releasing or mobilising the stapes; however, the SNOMED concept specifically describes division of an otosclerotic bony process, which does not map precisely to a release procedure. |
| 232523002 (Division of styloid process in tonsillar fossa) | is related to | MAB.JJ.AA (Partial excision of facial bone, not elsewhere classified) | The styloid process is a projection of the temporal bone (skull base), not a facial bone per se, and ICHI has no specific code for styloidectomy; "Partial excision of facial bone, NEC" is the closest available structural match for a bony resection in this region, but the anatomical and procedural fit is imprecise. |
| 386498002 (Domestic partner abuse prevention) | is related to | VBB.VB.ZZ (Awareness raising to influence family and partner violence behaviours) | ICHI's VBB block (family and partner violence) is the correct domain, and awareness raising captures a key component of abuse prevention; however, "prevention" is broader than awareness raising alone, also encompassing training, counselling, and advocacy. |
| 274423009 (Drainage of urinary bladder) | is related to | NAI.DL.AD (Insertion of device into urinary bladder) | ICHI has no dedicated bladder drainage code; the closest functional equivalent is endoscopic insertion of a device into the bladder (i.e. urethral catheterisation), which is the standard means of bladder drainage but describes device insertion rather than drainage per se. |
| 384624000 (Drainage of urinary bladder by indwelling suprapubic catheter) | is related to | NAI.LI.AE (Percutaneous cystotomy) | Suprapubic catheterisation is a percutaneous cystotomy with placement of an indwelling catheter; NAI.LI.AE captures the percutaneous bladder access component but does not explicitly encode the indwelling catheter or drainage intent. |
| 702648004 (Drainage using fluoroscopic guidance) | is related to | XG2RR6 (X-ray guided) | ICHI has no procedure code for fluoroscopy-guided drainage as a standalone generic intervention; XG2RR6 is an extension/means code capturing fluoroscopic guidance but does not encode the drainage action or target. |
| 720174008 (Drug harm reduction program) | is related to | VAC.RD.ZZ (Providing goods to support improved health behaviours relating to illicit drug use) | Harm reduction programs are multi-component (needle exchange, naloxone distribution, education, counselling); VAC.RD.ZZ represents the goods-provision dimension but does not encompass the educational or counselling components. |
| 78092008 (Drug rehabilitation) | is related to | VAC.PP.ZZ (Counselling about illicit drug use behaviours) | Drug rehabilitation is a comprehensive multi-disciplinary program (detoxification, psychotherapy, counselling, social reintegration) not capturable by a single ICHI category; VAC.PP.ZZ represents the counselling component but not the full scope. |
| 431880005 (Dry needling of tendon using ultrasound guidance) | is related to | PZX.SP.AE (Acupuncture, not elsewhere classified, percutaneous) | ICHI has no dedicated dry needling code; PZX.SP.AE shares the same instrument and percutaneous approach but dry needling is clinically distinct from acupuncture, the target is a tendon rather than an acupuncture point, and the ultrasound guidance modifier is not encoded. |
| 410380000 (Durable medical equipment surveillance) | is related to | UAD.SM.ZZ (Management of products and technology for personal use in daily living) | ICHI does not model equipment surveillance as a distinct intervention type; UAD.SM.ZZ is the closest related concept in the products-and-technology environment chapter but is broader and does not capture the surveillance/monitoring intent. |
| 386263003 (Dysrhythmia management) | is related to | HFC.AI.AH (Cardiac electrophysiological monitoring) | Dysrhythmia management as a clinical activity encompasses monitoring, assessment, and response to abnormal cardiac rhythm; HFC.AI.AH covers only the electrophysiological monitoring component, while HFC.SC.AH (cardioversion) covers only the conversion act. |
| 385900001 (Ear care management) | is related to | CZZ.ZZ.ZZ (Interventions on the ear or mastoid, unspecified) | There is no specific ICHI code for generic "ear care management"; CZZ.ZZ.ZZ is the residual unspecified category for the entire ear/mastoid chapter and is the closest available code, but it is far broader and non-specific relative to the SNOMED care-management concept. |
| 170966002 (Ear disorder monitoring) | is related to | CZZ.AA.ZZ (Assessment of ear, not elsewhere classified) | ICHI has no dedicated code for monitoring of ear disorder; CZZ.AA.ZZ (assessment of ear NEC) is the closest available code within the ear chapter, but monitoring implies ongoing surveillance rather than a single assessment, so the match is only approximate. |
| 171219003 (Ear disorder screening) | is related to | CTB.AC.ZZ (Test of hearing functions) | Ear disorder screening predominantly consists of hearing function testing (e.g., audiometry); CTB.AC.ZZ is the best-fitting ICHI code, though it is narrower than the SNOMED concept and screening as a population-level activity is not fully captured. |
| 386264009 (Eating disorders management) | is related to | BlockL4-VEA (Interventions on eating behaviours) | No single ICHI category code captures the broad multi-modal management of eating disorders; the block BlockL4-VEA groups all interventions on eating behaviours and is the best available fit, though it targets "behaviours" rather than clinical eating disorder management. |
| 710882007 (Education about effective communication) | is related to | SR1.PM.ZZ (Education about engaging in interactions and interpersonal relationships, unspecified) | "Effective communication" as a patient education topic aligns most closely with interpersonal interaction education in ICHI; however, SR1.PM.ZZ covers a broader domain of interactions and relationships, not specifically communication skills. |
| 651321000124106 (Education about English as a second language program) | is related to | SBD.PH.ZZ (Training in acquiring an additional language) | ICHI's SBD.PH.ZZ covers training in acquiring an additional language, the closest structural match; however, ICHI uses "training" (PH) rather than "education" (PM) and does not distinguish second-language program enrollment as a health intervention context. |
| 1153560007 (Education about exposure to communicable disease) | is related to | VDA.PM.ZZ (Education to influence immunisation behaviours) | ICHI lacks a direct code for education about communicable disease exposure; VDA.PM.ZZ targets immunisation behaviours (the primary public-health response to exposure risk) and is the closest thematic match, though framed around vaccination uptake. |
| 713145001 (Education about immobilization) | is related to | MTB.PM.ZZ (Education about joint mobility) | Immobilization directly affects joint mobility, and MTB.PM.ZZ is the closest ICHI education code within the musculoskeletal system; however, it focuses on joint mobility as a functional outcome rather than the clinical intervention of immobilization itself, making it related but not semantically equivalent. |
| 868264004 (Education about infectious disease transmission) | is related to | VED.PM.ZZ (Education to influence hygiene behaviours) | ICHI has no dedicated code for education about infectious disease transmission; hygiene behaviour education (VED.PM.ZZ) is the closest thematically related intervention (hand hygiene and hygiene practices are primary routes of transmission control), but it does not capture the broader concept of infectious disease transmission education. |
| 710358005 (Education about light therapy) | is related to | UBH.PM.ZZ (Education about aspects of light) | ICHI's UBH.PM.ZZ sits in the environmental "interventions on light" block and covers education about light broadly, whereas the SNOMED concept refers specifically to clinical light therapy (e.g., bright-light therapy for seasonal affective disorder or phototherapy for skin conditions). There is no ICHI code that captures clinical light therapy education specifically. |
| 59011000087104 (Education about management of aggressive behavior) | is related to | ATH.PM.ZZ (Education about temperament and personality) | Aggressive behavior in clinical settings (e.g., dementia, autism, psychiatric conditions) is rooted in temperament and personality functions, making ATH.PM.ZZ the closest ICHI body-function code for patient-level education about managing such behavior. ICHI's violence-behavior codes (VB1.PM.ZZ) are framed as population-level public health interventions, not individual clinical patient education. |
| 59021000087107 (Education about management of negative behavior) | is related to | AUD.PM.ZZ (Education about emotional functions) | Negative behaviors (apathy, withdrawal, blunted affect, reduced motivation) in clinical contexts are primarily rooted in emotional and psychosocial functions, making AUD.PM.ZZ "Education about emotional functions" the closest individual-level ICHI code. No ICHI code specifically covers education about managing negative behavioral symptoms as a clinical intervention. |
| 723471009 (Education about management of symptoms of condition within activity) | is related to | SDJ.PM.ZZ (Education about handling stress and other psychological demands) | The SNOMED concept concerns educating patients to manage disease symptoms that arise during activity — a cross-cutting concept with no direct ICHI equivalent. SDJ.PM.ZZ covers education about coping with demands in the activities-and-participation domain and is the closest available code, but it emphasises psychological/stress demands rather than the broader range of physical and functional symptoms a condition may produce during activity. |
| 1259295004 (Education about prevention of dental trauma) | is related to | VC1.PM.ZZ (Education to influence safety-related behaviours, unspecified) | No dental or oral-health-specific education code exists in ICHI; VC1.PM.ZZ covers education targeting safety-related behaviours, which encompasses injury/trauma prevention guidance, but it is a generic safety-behaviour code rather than a dental-specific one. |
| 440635001 (Education about prevention of recurrence of urinary tract calculi) | is related to | NT2.PM.ZZ (Education about urinary functions, not elsewhere classified) | NT2.PM.ZZ addresses education about urinary functions, but urinary tract calculi are a structural/anatomical problem rather than a functional one, making this an approximate relationship; no ICHI code specifically addresses calculi recurrence prevention education. |
| 725952004 (Education about sepsis) | is related to | DTB.PM.ZZ (Education about functions of the immunological system) | ICHI has no code for sepsis education specifically; DTB.PM.ZZ (immunological system functions) is the closest biological domain since sepsis is a systemic immune/inflammatory response, but the fit is indirect — the immunological system target is related but not a direct match for the clinical syndrome of sepsis. |
| 1255512007 (Education about substance use disorder treatment program) | is related to | VAC.PM.ZZ (Education to influence illicit drug use behaviours) | Substance use disorder treatment programs most closely align with illicit drug use behaviours in ICHI's VAC block; however, ICHI's scope is limited to illicit drugs and framed as behaviour influence, whereas the SNOMED concept covers education about a formal treatment program for any substance use disorder (including alcohol or pharmaceuticals), making this a related but not equivalent match. |
| 313212001 (Education about symptomatic treatment) | is related to | UAC.PM.ZZ (Education about medications) | Symptomatic treatment education most commonly involves educating patients about medications used to relieve symptoms, making UAC.PM.ZZ the closest ICHI code; however, UAC.PM.ZZ is focused on medications generally rather than the concept of symptomatic (as opposed to curative) treatment, and ICHI has no code specifically representing education about symptomatic management as a treatment approach. |
| 718021000 (Education about take home naloxone for opiate overdose intervention) | is related to | VAC.PM.ZZ (Education to influence illicit drug use behaviours) | Take-home naloxone education is a harm reduction intervention targeting opioid/illicit drug use, and VAC.PM.ZZ is the closest ICHI code in the substance-related behaviours hierarchy; however, ICHI does not have a specific code for naloxone overdose reversal education, and VAC.PM.ZZ focuses on influencing drug use behaviour rather than educating about an emergency reversal agent. |
| 710897005 (Education about water supply) | is related to | UBN.PM.ZZ (Education about water quality) | UBN.PM.ZZ is the closest ICHI code, as it addresses education about water within the "Interventions on water quality" block (environment chapter). However, the SNOMED concept focuses on water supply (access/infrastructure) while ICHI's UBN.PM.ZZ focuses on water quality, making these related but not semantically equivalent. |
| 371006005 (Education assistance) | is related to | ST2.RB.ZZ (Practical support with engaging in education, not elsewhere classified) | "Education assistance" in SNOMED denotes support provided to enable participation in education, which aligns most closely with ST2.RB.ZZ (practical support with engaging in education NEC); however the SNOMED concept is ambiguous — it could represent assistance as education delivery or assistance to access education — making this a related rather than equivalent match. |
| 89955009 (Education of bed-bound child) | is related to | SM1.PM.ZZ (Education about self care, unspecified) | ICHI has no code for education of immobilised or bed-bound patients, nor one specific to paediatric populations. Education about self care, unspecified (SM1.PM.ZZ) is the most plausible related concept, as caring for oneself encompasses the skills and adaptations relevant to bed-bound care, but the patient-specific age and mobility context is not captured. |
| 410381001 (Education surveillance) | is related to | VC (Public health surveillance) | "Education surveillance" in SNOMED CT refers to monitoring educational or health-education activities at a population level, which aligns most closely with public health surveillance (VC) in ICHI. However, VC is a broad public health action not scoped specifically to the education domain, making this a relatedto match. |
| 183339004 (Educational rehabilitation) | is related to | SA1.AA.ZZ (Assessment of learning and applying knowledge, unspecified) | ICHI does not contain an assignable code for educational rehabilitation as a composite activity. The learning and applying knowledge block is the closest structural domain, and SA1.AA.ZZ (Assessment of learning and applying knowledge) sits within it; however, rehabilitation is an active remedial process distinct from assessment, making this a relatedto approximation rather than an equivalent. |
| 386499005 (Elder abuse prevention) | is related to | VBB.ZZ.ZZ (Other and unspecified intervention targeting family and partner violence behaviours) | ICHI has no elder-specific code; elder abuse is broadly categorised under family and partner violence behaviours (block VBB), and VBB.ZZ.ZZ is the residual catch-all for that block, making it the closest structural match while remaining semantically imprecise. |
| 270900005 (Electrical nerve stimulation procedure) | is related to | AXA.SC.BP (Electrical stimulation for pain) | ICHI contains nerve-specific electrical stimulation codes (AAN.SC.BP for cranial nerve, ABN.SC.BP for spinal nerve, MU2.SC.BP for muscle) but no single general "electrical nerve stimulation" category; the SNOMED concept is a broad procedure grouper with no direct ICHI equivalent, and the most commonly performed clinical form targets pain, making AXA.SC.BP the closest related match, though it covers only the pain-relief indication. |
| 386265005 (Electrolyte management: hypercalcemia) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | ICHI's BlockL5-ETE contains only assessment and education as assignable codes, neither capturing therapeutic management of a specific electrolyte imbalance; ETE.AA.ZZ is the closest related concept within this block but does not represent the management/treatment intent of the SNOMED concept. |
| 386266006 (Electrolyte management: hyperkalemia) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | ICHI has no assignable code for active treatment of hyperkalemia; the only assignable codes in the electrolyte balance block are assessment and education, so ETE.AA.ZZ is the closest related code without capturing the therapeutic management intent. |
| 386267002 (Electrolyte management: hypermagnesemia) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | ICHI lacks a specific intervention code for managing elevated magnesium levels; the electrolyte balance block (BlockL5-ETE) contains only assessment and education codes, making ETE.AA.ZZ the nearest available code by domain even though it does not represent therapeutic management. |
| 386268007 (Electrolyte management: hypernatremia) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | ICHI does not have an assignable code for managing hypernatremia or any specific electrolyte excess condition; the electrolyte balance block offers only assessment (ETE.AA.ZZ) and education (ETE.PM.ZZ) as leaf codes, neither of which captures the treatment/management intervention described by this SNOMED concept. |
| 386269004 (Electrolyte management: hyperphosphatemia) | is related to | BlockL5-ETE (Interventions on water, mineral and electrolyte balance functions) | ICHI has no assignable code for treatment of hyperphosphatemia specifically; the block "Interventions on water, mineral and electrolyte balance functions" covers the correct physiological domain but is a non-assignable organisational grouping, not a procedure code equivalent to the SNOMED management concept. |
| 386270003 (Electrolyte management: hypocalcemia) | is related to | BlockL5-ETE (Interventions on water, mineral and electrolyte balance functions) | ICHI contains no specific code for hypocalcemia management; the block "Interventions on water, mineral and electrolyte balance functions" is the closest structural match covering mineral and electrolyte interventions, but it is a block-level grouping without a therapeutic procedure code for calcium correction. |
| 386271004 (Electrolyte management: hypokalemia) | is related to | BlockL5-ETE (Interventions on water, mineral and electrolyte balance functions) | No ICHI code exists for hypokalemia-specific management; the ETE block encompasses interventions on water, mineral, and electrolyte balance, making it the most relevant location in the hierarchy, but the only assignable children are assessment and education codes that do not capture the treatment intent. |
| 386272006 (Electrolyte management: hypomagnesemia) | is related to | BlockL5-ETE (Interventions on water, mineral and electrolyte balance functions) | ICHI lacks a procedure code for hypomagnesemia treatment; BlockL5-ETE is the correct hierarchical domain covering mineral and electrolyte balance interventions, but no assignable category code exists that represents active clinical management of a specific low-magnesium state. |
| 386273001 (Electrolyte management: hyponatremia) | is related to | BlockL5-ETE (Interventions on water, mineral and electrolyte balance functions) | ICHI does not have a dedicated code for hyponatremia management; the ETE block is the best-fitting part of the ICHI hierarchy, but it is a non-assignable block with only assessment and education leaf codes, neither of which matches the clinical management concept. |
| 386274007 (Electrolyte management: hypophosphatemia) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | ICHI's ETE block covers interventions on water, mineral and electrolyte balance functions, and ETE.AA.ZZ is its assessment code, but ICHI contains no specific management or treatment code for hypophosphatemia (e.g., phosphate replacement); the closest ICHI code is an assessment, making this a related but non-equivalent match. |
| 76777009 (Electrophrenic respiration) | is related to | MCX.DL.AA (Insertion of internal device of diaphragm) | Electrophrenic respiration (diaphragm pacing via phrenic nerve or diaphragmatic electrode stimulation) is most closely represented in ICHI by insertion of an internal device into the diaphragm, corresponding to the implantation step; however the SNOMED concept encompasses the functional therapy itself (the ongoing electrical stimulation producing respiration), not just device insertion, so the match is related but not equivalent. |
| 41202006 (Embolectomy of upper limb artery) | is related to | IZA.JE.AF (Endovascular extraction of obstruction of artery, not elsewhere classified) | ICHI has no specific "extraction of obstruction from artery of upper limb" code — the ICA (artery of upper limb) block only contains endarterectomy, not embolectomy. The best available code is the NEC endovascular artery extraction code, but it lacks site specificity and presupposes an endovascular approach, making it an approximate rather than equivalent match. |
| 448466004 (Embolization of arteriovenous fistula of extremity) | is related to | ICA.LA.AF (Endovascular embolisation or occlusion of artery of upper limb) | ICHI has no code for embolisation of an arteriovenous fistula; ICA.LA.AF (upper limb artery, endovascular embolisation) is the closest structural relative within the extremity vascular domain, but it targets a native artery rather than an AV fistula and does not cover lower limb, making it only relationally associated rather than equivalent. |
| 408501008 (Emergency hospital admission for chronic obstructive pulmonary disease) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not encode emergency hospital admissions as a distinct intervention type; the closest available concept is "Referral to health provider" (UEP.TI.ZZ), which captures the care-pathway action of directing a patient to a higher-level care setting, but omits the emergency nature, the admission itself, and the COPD clinical context. |
| 416683003 (Emergency hospital admission for heart failure) | is related to | UEP.TI.ZZ (Referral to health provider) | As with the COPD concept, ICHI has no code for disease-specific emergency admissions; "Referral to health provider" is the best available approximation of the care-coordination act, but the emergency urgency and heart failure condition specificity are entirely absent. |
| 699245006 (Emergency hospital admission for ischemic heart disease) | is related to | UEP.TI.ZZ (Referral to health provider) | Same reasoning as the preceding two admission concepts — ICHI lacks an emergency-admission category and carries no disease-condition axis; "Referral to health provider" is the nearest structural analogue but is semantically much narrower in scope than an acute ischemic presentation requiring inpatient care. |
| 410382008 (Employment surveillance) | is related to | SU2.AM.ZZ (Observation of engaging in work and employment, not elsewhere classified) | No ICHI code for employment surveillance exists; ICHI's public health surveillance codes (UB*/UA* series) cover environmental and population surveillance but not employment-specific surveillance, while SU2.AM.ZZ (observation of engaging in work and employment) is the closest individual-level monitoring concept, though surveillance typically implies a population-level monitoring function that ICHI does not capture precisely. |
| 10381000132106 (EMR (endoscopic mucosal resection) of gastrointestinal tract) | is related to | KBF.JI.AD (Endoscopic local excision of lesion of stomach) | ICHI has no GI-tract-wide EMR code; endoscopic local excision (JI.AD) is the structurally equivalent action/approach across individual GI sites, but each code is site-specific (stomach selected as representative). The SNOMED concept is GI-tract-level and technique-specific (mucosal resection), while the closest ICHI codes are narrower by site and do not encode the mucosal layer distinction. |
| 119939007 (Endocrine gland injection) | is related to | EZZ.ZY.ZY (Other specified interventions on the endocrine system) | ICHI contains no injection (DB action axis) codes for any endocrine gland target; the entire endocrine section lacks such codes. EZZ.ZY.ZY places the intervention correctly within the endocrine system chapter but conveys no information about the injection action or the specific gland involved. |
| 107985006 (Endocrine system endoscopy) | is related to | EZZ.ZZ.ZZ (Interventions on the endocrine system, unspecified) | ICHI has no endoscopy codes for endocrine glands (thyroid, adrenal, pituitary, etc. are solid organs not accessible via conventional endoscopy in ICHI's scope), and no endocrine-specific examination or visualisation codes exist outside of imaging. EZZ.ZZ.ZZ captures the endocrine system target only; the endoscopic modality is entirely lost. |
| 236254002 (Endoscopic adjustment of prostatic stent) | is related to | NAM.KA.AD (Transurethral endoscopic replacement of internal device of urethra) | ICHI has no dedicated code for adjustment or repositioning of a prostatic stent; the closest available code covers transurethral endoscopic replacement of a urethral internal device, which shares the endoscopic transurethral approach and device-management intent but conflates replacement with adjustment and locates the target at the urethra rather than the prostate specifically. |
| 280454009 (Endoscopic airway clearance) | is related to | JZZ.JB.AC (Suctioning of airways, not elsewhere classified) | ICHI contains no code explicitly labelled "endoscopic airway clearance"; the closest is suctioning of airways NEC, which captures the therapeutic clearance intent but is broader (not restricted to endoscopic approach) and suctioning is only one mechanism by which endoscopic airway clearance can be performed. |
| 439533007 (Endoscopic balloon dilation of ostium of paranasal sinus) | is related to | JAE.LG.AC (Dilatation of frontonasal duct, not elsewhere classified) | ICHI has no code for endoscopic dilatation of a paranasal sinus ostium generically; the closest available is dilatation of the frontonasal duct, which is structurally related (a sinus ostium/duct dilatation) but refers to a specific anatomical site, omits the balloon/endoscopic means, and uses a "not elsewhere classified" qualifier indicating it is a residual rather than a precise match. |
| 427246004 (Endoscopic drilling of epiphysis for repair of articular cartilage) | is related to | MMC.MK.AB (Arthroscopic repair of cartilage of knee) | ICHI has no code specifically for subchondral drilling / microfracture of an epiphysis; the closest available concept is arthroscopic repair of cartilage (knee being the most common site), but this is a different body site specifier and a broader repair action rather than the specific drilling/perforation technique. |
| 172968005 (Endoscopic extirpation of lesion of hypopharynx) | is related to | KAR.JI.AA (Local excision of lesion of oral pharynx) | ICHI has no dedicated hypopharynx block — the classification covers nasal pharynx and oral pharynx but not the hypopharynx as a distinct anatomical site; KAR.JI.AA is the closest pharyngeal lesion excision code, though it refers to the oropharynx rather than the hypopharynx, and does not specify the endoscopic approach. |
| 288101000 (Endoscopic injection of caustic) | is related to | KBA.DB.AD (Endoscopic administration of agent into lesion of oesophagus) | ICHI has no generic "endoscopic injection of caustic/sclerosing agent" code independent of an anatomical target; the DB.AD pattern (endoscopic administration of agent into lesion) appears only for specific GI segments and the oesophagus is the most common site for caustic/sclerotherapy injection, but the SNOMED concept is site-unspecified. |
| 609288004 (Endoscopic injection of small intestine for control of hemorrhage) | is related to | KBK.LA.AF (Transcatheter embolisation for small intestinal bleeding) | ICHI has no code for endoscopic injection into the small intestine; KBK lacks a DB.AD (endoscopic administration of agent) code unlike the stomach or oesophagus. KBK.LA.AF is the only small intestine haemostasis code and addresses the same clinical goal, but uses transcatheter embolisation rather than endoscopic injection. |
| 235156000 (Endoscopic lavage of GIT) | is related to | KBF.JA.AC (Gastric lavage) | ICHI has no single code for endoscopic lavage across the entire GI tract; the closest available code is gastric lavage (KBF.JA.AC), but it covers only the stomach and does not capture the endoscopic approach or the broader GI tract scope of the SNOMED concept. |
| 446741006 (Endoscopic ligation of varix of small intestine) | is related to | KBK.LA.AF (Transcatheter embolisation for small intestinal bleeding) | ICHI has no code for endoscopic ligation or occlusion of varices of the small intestine; the only small intestine vascular intervention found is transcatheter embolisation, which shares the intent of controlling bleeding but differs in technique (transcatheter vs endoscopic) and target specificity (bleeding vs varix). |
| 425721004 (Endoscopic osteochondral autograft) | is related to | MMC.JH.AB (Arthroscopic procurement of knee cartilage) | ICHI has no dedicated code for osteochondral autograft (mosaic-plasty/OATS) performed endoscopically; the closest related code is arthroscopic procurement of knee cartilage, which represents only the harvesting phase and is anatomically restricted to the knee. |
| 786884007 (Endoscopic snare resection) | is related to | KBW.JI.AD (Endoscopic local excision of lesion of rectum) | ICHI has no generic body-site-agnostic "endoscopic snare resection" code; the concept covers a technique applicable across the GI tract. The closest structural equivalent exists per organ, so no single ICHI category code is an adequate match. |
| 56680003 (Endoscopy of parathyroid gland) | is related to | BlockL5-EBB (Interventions on parathyroid gland) | ICHI has no code for diagnostic endoscopy of the parathyroid gland; the only endoscopic code in this block (EBB.JK.AB) is for therapeutic endoscopic parathyroidectomy, which is semantically different. The block-level code is assigned as the closest structural anchor for this unmatched diagnostic procedure. |
| 70711006 (Endoscopy of scrotum) | is related to | NGG.AE.AA (Exploration of scrotum) | ICHI has no specific endoscopy or scrotoscopy code; NGG.AE.AA (Exploration of scrotum) is the only investigation/inspection-type procedure coded for this structure, but "exploration" implies open surgical exploration rather than endoscopic visualization, making this a related rather than equivalent match. |
| 446723003 (Endoscopy of upper gastrointestinal tract and dilation of gastric stoma) | is related to | KBF.LG.AD (Endoscopic pyloroplasty) | ICHI has no code for endoscopic dilation of a gastric stoma (e.g., stomal stricture after gastroenterostomy); KBF.LG.AD (endoscopic pyloroplasty) is the closest gastric-target endoscopic dilatation/remodelling procedure, but pyloroplasty implies a different anatomical site and surgical intent than stomal dilation, making the relationship associative rather than approximate. |
| 446418004 (Endoscopy of upper gastrointestinal tract and tattooing) | is related to | KBF.DB.AD (Endoscopic administration of agent into lesion of stomach) | ICHI has no code for endoscopic tattooing or mucosal marking as a standalone procedure. Endoscopic tattooing (e.g. India ink injection) is a submucosal injection of a marking agent, which best aligns with "administration of agent into lesion" — but the SNOMED concept is performed in the upper GI tract (including oesophagus, stomach, or duodenum) without specifying a single site, so KBF.DB.AD (stomach, the most common upper GI tattoo site) is related but only a partial, site-specific fit. |
| 448342009 (Endovascular fenestration of aortic dissection) | is related to | HIG.DL.AF (Percutaneous transluminal insertion of device into descending thoracic aorta) | ICHI has no specific code for endovascular fenestration of aortic dissection. Fenestration involves creating a communication between true and false aortic lumens, most commonly in the descending thoracic aorta; HIG.DL.AF captures the endovascular percutaneous approach and the aortic target but is a generic device-insertion code rather than a fenestration-specific one, making it a related but inexact match. |
| 708968000 (Endovascular thrombectomy of abdominal vein) | is related to | IED.FA.AA (Incision of abdominal or pelvic vein) | ICHI has no thrombectomy or endovascular extraction code for the abdominal/pelvic vein block (IED); the nearest available code is incision of that vessel, which shares the target but represents a different surgical action. |
| 385688007 (Energy conservation) | is related to | ATI.PH.ZZ (Training of energy and drive functions) | "Energy conservation" is a rehabilitation strategy (pacing, activity management) taught to patients with fatigue or chronic conditions; the closest ICHI concept is training of energy and drive functions (ATI.PH.ZZ), but that code covers training of the neuropsychological functions of energy/drive, not the occupational-therapy technique of energy-pacing per se. No dedicated ICHI code for energy conservation as an OT intervention exists. |
| 282570000 (Enlargement annuloplasty) | is related to | HDF.ML.AA (Reconstruction of mitral valve or subvalvar apparatus) | ICHI has no specific annuloplasty enlargement procedure code; the "Annuloplasty ring" entry in ICHI is a device extension entry without an assignable procedure code, and enlargement annuloplasty — which widens a stenosed valve annulus — most closely aligns with valve reconstruction, though ICHI is substantially coarser and does not distinguish enlargement from other forms of valve repair or reconstruction. HDF.ML.AA is used as a representative mitral valve code, but the SNOMED concept could equally involve tricuspid or aortic valves. |
| 225981007 (Ensuring good communication) | is related to | SGA.PH.ZZ (Training in having a conversation) | "Ensuring good communication" is a broad nursing/clinical practice concept covering interpersonal skills and therapeutic communication, which ICHI does not encode as a procedural intervention; the nearest available code is SGA.PH.ZZ (training in having a conversation), which shares the communication domain but is specifically about training patients in conversational skills rather than a clinician ensuring effective communication in care. |
| 408911006 (Enteral feeding assessment) | is related to | PZA.AA.ZZ (Assessment of body composition) | ICHI has no code specific to assessment of enteral feeding status or suitability; PZA.AA.ZZ (assessment of body composition — whole body) is the nearest assessment code in the nutritional/whole-body domain, but it addresses body composition rather than evaluating the enteral feeding process or need, making this only a related match. |
| 408909002 (Enteral feeding management) | is related to | PZA.DA.ZZ (Administering nutritional requirements, not elsewhere classified) | ICHI does not have a dedicated "enteral feeding management" code; PZA.DA.ZZ is the NEC residual for administering nutritional requirements and captures the delivery/management of nutrition at the whole-body level, but "management" in the SNOMED sense (monitoring, adjusting, troubleshooting) extends beyond mere administration, making this a related rather than equivalent match. |
| 409581001 (Enteric precautions) | is related to | PZB.VE.ZZ (Isolation of a person for infection control) | Enteric precautions are a specific bundle of infection control measures (hand hygiene, barrier methods, cohorting) aimed at preventing faecal-oral transmission, while PZB.VE.ZZ focuses specifically on isolating a person — one component of enteric precautions but not the whole concept; no ICHI code captures the full precaution bundle, making this a related but imprecise match. |
| 68595001 (Enterocentesis of intestine) | is related to | KBK.FA.AA (Incision of small intestine, not elsewhere classified) | Enterocentesis is needle puncture/aspiration of the intestine to withdraw fluid or gas, which is conceptually distinct from incision (KBK.FA.AA); ICHI has no dedicated aspiration or percutaneous puncture code for the intestine, and no equivalent of the centesis action axis applied to the gut, making this the closest structural intervention on the intestinal wall but not a genuine semantic match. |
| 428737009 (Enucleation of lesion of skin) | is related to | BlockL4-LAA (Interventions on skin) | ICHI has no site-unspecified code for local excision of a skin lesion — all skin excision codes (e.g., LAA.JI.AA, LAB.JI.AA) are stratified by body region, whereas the SNOMED concept specifies skin generically without a site; the block BlockL4-LAA is therefore the closest representable grouping, but it is only a relatedto match as it covers all skin interventions and does not resolve to an assignable excision code. |
| 36946006 (Epididymectomy) | is related to | NGD.JJ.AA (Partial excision of spermatic cord) | ICHI has no dedicated epididymis excision code; the epididymis sits within the spermatic cord block (BlockL5-NGD) but no specific epididymectomy code exists there. The closest anatomically-located excision codes are for spermatic cord or testis, neither of which is the same target, making this a related but not equivalent mapping. |
| 231389002 (Epidural neurolysis) | is related to | ABN.GA.AE (Percutaneous destruction of spinal nerve root) | Epidural neurolysis involves chemical or physical destruction of nerve tissue within the epidural space, which is closely related to percutaneous destruction of the spinal nerve root, but ICHI does not have a code specifically targeting the epidural space as the site of nerve destruction — the closest match addresses the spinal nerve root via percutaneous approach rather than the epidural space itself. |
| 420071006 (Epikeratome laser assisted keratomileusis) | is related to | BBB.FA.AA (Incision of cornea) | LASEK (epikeratome laser-assisted keratomileusis) involves creating an epithelial flap in the cornea followed by laser ablation to reshape it — ICHI has no code for laser refractive corneal surgery or keratomileusis specifically; the closest structural match is incision of cornea (BBB.FA.AA), but this is only a partial procedural element and does not capture the laser ablation/reshaping component, making this a related-to rather than any closer equivalence. |
| 44891004 (Epiphyseal stapling) | is related to | MLB.DN.AA (Implantation of device into femur) | Epiphyseal stapling is a growth modulation procedure where metal staples (devices) are implanted across the physis to arrest growth on one side, most commonly performed at the distal femur or proximal tibia; ICHI has no dedicated code for this technique and the closest concept is implantation of a device into femur (MLB.DN.AA), though this is site-specific and does not capture the epiphyseal/growth-plate targeting or the broader body sites (tibia, fibula) where stapling is also performed. |
| 133907004 (Episiotomy care) | is related to | PAW.MK.AA (Repair of perineum) | ICHI has no code for post-procedure episiotomy care (wound assessment, dressing, hygiene instruction). The closest available code is repair of perineum (PAW.MK.AA), which covers the surgical closure component that may be part of episiotomy management, but does not capture the broader nursing/aftercare meaning of "episiotomy care." No wound-care or perineal-care management code exists in ICHI. |
| 385874005 (Equipment safety assessment) | is related to | VCB.AA.ZZ (Assessment of workplace safety behaviours) | ICHI has no code specifically for assessing equipment safety; the closest available concept is assessment of workplace safety behaviours (VCB.AA.ZZ), which overlaps in domain but is framed around behavioural safety in the workplace rather than evaluating the safety of a specific piece of equipment. |
| 385875006 (Equipment safety education) | is related to | VCB.PM.ZZ (Education to influence workplace safety behaviours) | ICHI has no code specifically for equipment safety education; VCB.PM.ZZ is the nearest available code, addressing education in the context of workplace safety behaviours, but it targets behavioural change broadly rather than equipment-specific safety instruction. |
| 719862003 (Ergonomic assessment) | is related to | VCB.AA.ZZ (Assessment of workplace safety behaviours) | ICHI does not have a dedicated assignable category code for ergonomic assessment (XG90D5 "Ergonomics" is an extension code only); VCB.AA.ZZ (assessment of workplace safety behaviours) is the closest assignable code as ergonomic assessment is a core component of workplace safety evaluation, but it is broader and not ergonomics-specific. |
| 1156336002 (Escorting subject of care) | is related to | PZB.TJ.ZZ (Transporting person) | ICHI does not have a specific code for escorting or accompanying a patient; "Transporting person" (PZB.TJ.ZZ) is the closest available code under interventions on the whole person, but escorting implies accompanying/guiding rather than physically transporting, making it a related but non-equivalent concept. |
| 107931006 (Esophagus manipulation) | is related to | KBA.LG.AC (Dilatation of oesophagus) | "Esophagus manipulation" is a high-level SNOMED grouper concept that encompasses a range of mechanical interventions (dilation, bougienage, stricture management); dilatation is the most clinically common form. No single ICHI code covers the full breadth of the SNOMED concept, making this a related-but-not-equivalent match rather than a true hierarchy relationship. |
| 266683002 (Evacuation of GIT contents) | is related to | KBF.JA.AC (Gastric lavage) | "Evacuation of GIT contents" is a broad concept encompassing lavage or decompression anywhere along the gastrointestinal tract, while ICHI's most semantically close code is restricted to the stomach only. No single ICHI code covers evacuation of GIT contents as a whole-tract concept. |
| 443192000 (Evaluation of ascitic fluid) | is related to | KMA.AH.XE (Specimen collection of peritoneal fluid) | Ascitic fluid is peritoneal fluid, so KMA.AH.XE is anatomically aligned; however, the SNOMED concept denotes evaluation/analysis of ascitic fluid, whereas ICHI's code covers only the collection — these are related but represent different procedural steps. |
| 662331000124108 (Evaluation of eligibility for English as a second language program) | is related to | UEQ.AA.ZZ (Assessment of education and training services, systems and policies) | English as a second language is an education/training program, and UEQ.AA.ZZ represents assessment within the education and training services domain. ICHI does not capture individual eligibility determination — its assessment refers to evaluating services/systems rather than screening an individual for program admission. |
| 1371319007 (Evaluation of eligibility for family strengthening program) | is related to | UEO.AA.ZZ (Assessment of general social support services, systems and policies) | Family strengthening programs are a form of general social support service; UEO.AA.ZZ is the assessment code for that domain. ICHI does not distinguish individual eligibility determination from broader service-level assessment, making this only a related match. |
| 1258900003 (Evaluation of eligibility for financial assistance program) | is related to | UEN.AA.ZZ (Assessment of social security services, systems and policies) | Financial assistance programs are best represented under the social security services domain in ICHI; UEN.AA.ZZ is the assessment code for that domain. The ICHI code does not capture individual eligibility determination, so the match is relatedto. |
| 1259979009 (Evaluation of eligibility for microenterprise development program) | is related to | UEM.AA.ZZ (Assessment of economic services, systems and policies) | Microenterprise development is an economic/employment services program; UEM.AA.ZZ covers assessment within the economic services domain. Substantially broader, lacking specificity to small business development or individual eligibility screening. |
| 1255513002 (Evaluation of eligibility for substance use disorder treatment program) | is related to | UEP.AA.ZZ (Assessment of health services, systems and policies) | Substance use disorder treatment programs are health services; UEP.AA.ZZ is the most domain-appropriate ICHI code. ICHI does not represent the specific clinical act of determining individual eligibility for a treatment program. |
| 662631000124103 (Evaluation of eligibility for vocational education program) | is related to | STF.AA.ZZ (Assessment of engaging in vocational training) | STF.AA.ZZ covers assessment of engaging in vocational training, conceptually adjacent but not equivalent — the SNOMED concept describes evaluating eligibility for a program, whereas the ICHI code is about assessing participation in the activity itself. |
| 1300113003 (Evaluation of eligibility for vocational rehabilitation program) | is related to | STF.AA.ZZ (Assessment of engaging in vocational training) | Vocational rehabilitation overlaps with vocational training in ICHI's model; STF.AA.ZZ is the closest assessment code. ICHI does not model eligibility determination for rehabilitation programs as a distinct concept. |
| 1258925007 (Evaluation of eligibility for workforce transition program) | is related to | SU2.AA.ZZ (Assessment of engaging in work and employment, not elsewhere classified) | Workforce transition is an employment/work domain activity; SU2.AA.ZZ is the NEC residual assessment code under "Interventions on work and employment". ICHI does not represent eligibility evaluation for transition programs as a distinct intervention. |
| 391989008 (Eversion of hydrocele sac) | is related to | NGL.FA.AA (Incision of testis and tunica vaginalis) | ICHI has no dedicated code for eversion (Lord's procedure) of the tunica vaginalis/hydrocele sac. The closest available code covers incision of the testis and tunica vaginalis, sharing the same anatomical target but capturing only the incision step, not the eversion and suturing of the sac. |
| 373356002 (Evisceration of eye proper) | is related to | BZA.JK.AA (Enucleation of eyeball) | Evisceration of the eye proper (removal of intraocular contents while preserving the scleral shell) is clinically distinct from enucleation (removal of the entire eyeball), but BZA.JK.AA is the closest ICHI code for surgical removal of eye content. ICHI does not have a dedicated evisceration code. |
| 284447007 (Examination of cardiovascular structure) | is related to | HT2.AA.ZZ (Assessment of cardiovascular function, not elsewhere classified) | The SNOMED concept refers to examination of cardiovascular anatomical structures, whereas HT2.AA.ZZ targets cardiovascular functions rather than structures; no single ICHI code captures assessment of the cardiovascular system as a structural entity spanning both heart and vessels, making this a related but not directly equivalent match. |
| 268937004 (Examination of digestive system) | is related to | KTE.AA.ZZ (Assessment of digestive functions) | KTE.AA.ZZ covers assessment of digestive functions (a functional domain), whereas the SNOMED concept denotes a clinical examination of the digestive system as an anatomical entity. The two are related but not equivalent — ICHI's code is function-oriented and does not capture structural/physical examination of digestive organs. |
| 167592004 (Examination of feces) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI has no code specifically for laboratory examination or analysis of feces; the closest available code is PZX.AH.XG, which covers specimen collection of faeces — a prerequisite step rather than the examination itself. The two concepts are related but not equivalent, as the SNOMED concept encompasses the analytical/diagnostic act whereas the ICHI code captures only the collection. |
| 268945009 (Examination of genitourinary system) | is related to | NZZ.ZZ.ZZ (Interventions on the genitourinary system, unspecified) | There is no ICHI code specifically for assessment/examination of the genitourinary system as a whole; NZZ.ZZ.ZZ is the closest available code covering unspecified interventions across the whole genitourinary system. The match is approximate since NZZ.ZZ.ZZ is a residual "unspecified interventions" code rather than an examination or assessment code. |
| 63296004 (Excision of aorta) | is related to | HIH.JJ.AA (Partial excision of abdominal aorta) | ICHI has no generic "excision of aorta" code; the aorta is split into ascending, descending thoracic, and abdominal segments, each only with "partial excision". HIH.JJ.AA is a representative related code; a block-level assignment may be more appropriate. |
| 233493002 (Excision of arteriovenous graft) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | ICHI has no dedicated code for excision of an arteriovenous graft; the only AV-specific code (IZA.SN.AF) covers shunt/graft management broadly but does not specifically denote excision/removal. |
| 30368004 (Excision of artery of extremity) | is related to | ICA.JJ.AA (Partial excision of artery of upper limb) | ICHI separates upper limb (ICA.JJ.AA) and lower limb (IFA.JJ.AA) artery excision into distinct codes; no combined "extremity artery" code exists. ICA.JJ.AA is a representative code; correct ICHI depends on which limb. |
| 3915009 (Excision of artery of thorax and abdomen) | is related to | IDA.JJ.AA (Partial excision of thoracic artery) | The SNOMED concept spans both thoracic and abdominal arteries, but ICHI splits these into separate codes (IDA.JJ.AA thoracic; HIH.JJ.AA abdominal aorta) with no single covering code. IDA.JJ.AA is the closest representative for the thoracic component. |
| 64935002 (Excision of branchial cleft vestige) | is related to | MRS.JJ.AA (Partial excision of soft tissue of unspecified site) | ICHI has no specific code for branchial cleft vestige excision and no dedicated neck soft-tissue excision category; MRS.JJ.AA captures the general nature but is highly non-specific in site and tissue type. |
| 178044007 (Excision of fascia of pelvis) | is related to | MKL.FB.AA (Division of ligament or fascia of hip) | ICHI has no dedicated "excision of fascia of pelvis" code; the closest under the pelvic musculoskeletal block is MKL.FB.AA (division of ligament or fascia of hip), describing division rather than excision. |
| 11445008 (Excision of infected graft) | is related to | IZE.JJ.AA (Partial excision of blood vessel, not elsewhere classified) | ICHI has no concept for excision of an infected graft; IZE.JJ.AA covers vascular excision but "infected graft" implies synthetic implant removal context, and ICHI does not capture the infection qualifier or graft-specificity. |
| 443882006 (Excision of infected vascular graft of limb) | is related to | IZE.JJ.AA (Partial excision of blood vessel, not elsewhere classified) | ICHI lacks a dedicated code for removal of an infected vascular graft; IZE.JJ.AA captures the vascular excision action but does not encode limb specificity, graft nature, or infected status. |
| 708639004 (Excision of intramuscular lipoma) | is related to | MLM.JJ.AA (Partial excision of muscle of thigh) | ICHI has no dedicated lipoma excision code; the SNOMED concept is about removing a lipoma from within a muscle (not a partial muscular resection), and is not anatomically restricted to the thigh. |
| 46647003 (Excision of lesion of perirenal tissue) | is related to | NAA.JI.AA (Local excision of lesion of kidney) | ICHI has no dedicated target for perirenal (perinephric) tissue; NAA.JI.AA addresses lesion excision in that anatomical region but targets kidney parenchyma rather than the perirenal compartment. |
| 427092009 (Excision of lesion of vena cava) | is related to | HIB.JJ.AA (Partial excision of superior vena cava) | ICHI has no generic "vena cava" lesion excision code; HIB.JJ.AA is the closest assignable code but is narrower in site (superior only) and broader in procedure scope. |
| 128995005 (Excision of lower extremity structure) | is related to | MZZ.JN.AA (Amputation of musculoskeletal system structure, not elsewhere classified) | This SNOMED grouper covers any excisional procedure on any lower extremity structure; ICHI has no single unifying code. MZZ.JN.AA covers only musculoskeletal amputation as a catch-all. |
| 87404002 (Excision of meniscus of jaw bone) | is related to | MAJ.JG.AB (Arthroscopic debridement of head or neck joint) | ICHI has no dedicated TMJ disc/meniscus excision code; the MAJ block lacks an excision (JJ/JI) category, leaving arthroscopic debridement as the closest procedure in intent and site. The action differs (debridement vs. excision of a discrete intra-articular structure), making this only a related-to match. |
| 197045004 (Excision of myositis ossificans) | is related to | MRS.JI.AA (Local excision of lesion of soft tissue of unspecified site) | Myositis ossificans (heterotopic ossification within muscle) has no dedicated ICHI code; MRS.JI.AA captures the excision-of-lesion concept at the soft tissue level but specifies "unspecified site" and does not reflect the ossified/calcified nature of the lesion. |
| 180059006 (Excision of ovotestis) | is related to | NGL.JK.AA (Orchidectomy) | An ovotestis is a gonadal structure found in disorders of sex development containing both testicular and ovarian tissue. NGL.JK.AA (orchidectomy) is the closest single code given the testicular component, but the structure does not map cleanly to either orchidectomy or oophorectomy alone. |
| 359973004 (Excision of pericardial adhesions) | is related to | HFF.FC.AA (Release of adhesions of pericardium) | The ICHI code describes release/lysis of pericardial adhesions (pericardiolysis), which is clinically the same procedure but uses different action terminology — FC (release) rather than JK (excision). No ICHI code exists for "excision" of pericardial adhesions specifically. |
| 359926005 (Excision of periprostatic tissue) | is related to | NGA.JI.AA (Local excision of lesion of prostate) | ICHI has no code for excision of periprostatic (peri-glandular) tissue; all prostate excision codes target the prostate gland itself. NGA.JI.AA is the closest available code within the prostate block but differs semantically as the SNOMED concept targets surrounding tissue. |
| 176846001 (Excision of periurethral tissue) | is related to | NAM.JI.AA (Local excision of lesion of urethra) | ICHI has no code for excision of periurethral (peri-luminal) tissue; the urethra block codes target the urethral lumen or wall rather than surrounding tissue. NAM.JI.AA is the nearest code but differs semantically from the SNOMED concept. |
| 174328000 (Excision of sphincter of anus) | is related to | KBX.JJ.AA (Partial excision of perianal tissue) | ICHI has no dedicated code for excision of the anal sphincter specifically; the KBX block contains only partial excision of perianal tissue or anal tissue via anus, neither of which precisely captures sphincter excision. KBX.JJ.AA is the closest anatomically related code, but the structural specificity to the sphincter muscle is absent. |
| 448200005 (Excision of supernumerary digit containing bone) | is related to | MRS.LA.AH (Ligation of supernumerary digit) | ICHI only has a ligation code for supernumerary digit — a fundamentally different technique from surgical excision — and does not capture the distinction between bone-containing vs. soft-tissue-only variants; this is the closest available code but is not equivalent. |
| 699798008 (Excision of supernumerary digit with soft tissue involvement only) | is related to | MRS.LA.AH (Ligation of supernumerary digit) | Same situation as the bone-containing variant: ICHI provides only ligation (not excision) for supernumerary digit, and does not distinguish soft-tissue-only from osseous forms; the code is related but procedurally distinct. |
| 38813006 (Excision of trochanteric pressure injury with skin flap reconstruction) | is related to | LAG.ML.AA (Skin graft to lower limb) | The SNOMED concept describes a two-part procedure — excision of a pressure injury at the trochanter followed by skin flap reconstruction. ICHI has no single code combining debridement/excision with flap closure; LAG.ML.AA captures the reconstructive skin component at the correct body region (lower limb), but omits the excision step. |
| 180098001 (Excision of ulnar digit and skeletal repair for polydactyly) | is related to | MGB.JN.AA (Amputation of bone of hand or finger) | No single ICHI code represents polydactyly correction as a composite procedure; MGB.JN.AA captures the osseous excision/amputation of the supernumerary digit component but does not encode the concomitant skeletal repair or the polydactyly indication. |
| 128994009 (Excision of upper extremity structure) | is related to | MRS.JJ.AA (Partial excision of soft tissue of unspecified site) | ICHI has no single code or block covering excision of upper extremity structures in general — it organises upper extremity interventions at a granular level by specific sub-region and tissue type. The nearest assignable single code is partial excision of soft tissue of unspecified site, broadly related but not aligned. |
| 448889000 (Excision of vascular graft of abdomen) | is related to | IEA.JJ.AA (Partial excision of abdominal or pelvic artery) | ICHI has no specific code for removal/excision of a vascular graft; the closest available codes represent partial excision of native abdominal or pelvic vessels rather than explantation of a synthetic graft. |
| 405290002 (Excision of vascular hematoma) | is related to | IZE.JJ.AA (Partial excision of blood vessel, not elsewhere classified) | ICHI contains no specific code for excision of a vascular hematoma; the NEC partial excision of blood vessel code is the nearest residual category for vessel-associated excision procedures. |
| 448023000 (Excisional biopsy of ganglion cyst) | is related to | MRT.JI.AA (Local excision of lesion of tendon sheath of unspecified site) | Ganglion cysts most commonly arise from tendon sheaths or joint capsules; MRT.JI.AA covers local excision of a lesion of a tendon sheath at an unspecified site, the closest structural match in ICHI. ICHI does not have a code specifically for ganglion cyst excision. |
| 359922007 (Excisional periprostatic biopsy) | is related to | NGA.AD.AA (Biopsy of prostate) | ICHI has no code for periprostatic tissue (the connective tissue surrounding the prostate); NGA.AD.AA covers biopsy of the prostate gland itself, the nearest anatomically related structure in ICHI, but the target tissue is distinct from periprostatic tissue. |
| 89710006 (Exploration of bursa) | is related to | MRS.FA.AA (Incision of soft tissue of unspecified site) | ICHI contains no bursa-specific intervention codes and no "exploration" action code for bursa; the closest available code is incision of soft tissue at unspecified site, the surgical approach used in bursa exploration but considerably broader in target and intent. |
| 178325009 (Exploration of chylous fistula) | is related to | DFP.MK.AA (Closure of fistula of thoracic duct) | ICHI contains no "exploration of" code for the thoracic duct or any lymphatic structure; the closest relevant code is DFP.MK.AA (Closure of fistula of thoracic duct), neither representing exploration nor matching the action axis of the SNOMED concept. |
| 303574002 (Exploration of lesion of abdominal wall) | is related to | PAL.JD.AA (Incision of haematoma of recent laparotomy site) | ICHI has no direct code for exploration of an abdominal-wall lesion; the PAL block lacks a generic lesion exploration category. PAL.JD.AA is the only PAL incision-type code but is restricted to laparotomy-site haematomas, only loosely related. |
| 363119001 (Exploration of musculoskeletal system) | is related to | MZZ.AA.ZZ (Assessment of musculoskeletal system, not elsewhere classified) | ICHI has no general musculoskeletal exploration code; MZZ.AA.ZZ is the closest, but assessment (diagnostic evaluation) does not fully capture the surgical/exploratory intent of the SNOMED concept. |
| 91439008 (Exploration of parathyroid gland) | is related to | BlockL5-EBB (Interventions on parathyroid gland) | ICHI has no dedicated parathyroid exploration code; the parathyroid block (EBB) contains only biopsy/scan/excision/transplant codes. The block is the closest available grouping for this distinct surgical procedure. |
| 175190002 (Exploration of pericardium) | is related to | HFF.FA.AA (Pericardiotomy) | ICHI has no pericardial examination/inspection code; pericardiotomy is how pericardial exploration is typically accomplished, but it implies a definitive incision rather than mere exploration. |
| 178770004 (Exploration of soft tissue of hand) | is related to | LZZ.AE.AA (Open exploration of skin and subcutaneous cell tissue, not elsewhere classified) | ICHI has no dedicated soft-tissue-of-hand exploration code; the hand musculoskeletal block covers only bone, joint, ligament, muscle, tendon. LZZ.AE.AA is the nearest concept but differs in anatomical specificity and tissue scope. |
| 174792006 (Exploration of spleen) | is related to | DJA.FA.AA (Incision of spleen) | ICHI has no exploration-of-spleen code; the spleen block offers biopsy/drainage/excision/repair/fixation but no exploration. Splenic incision is the closest procedural correlate but not semantically equivalent. |
| 312739000 (Exploration of supraclavicular fossa) | is related to | LZZ.AE.AA (Open exploration of skin and subcutaneous cell tissue, not elsewhere classified) | The supraclavicular fossa is a superficial neck region with no ICHI exploration code; the head/neck soft tissue block (MAS) contains only imaging/massage/stretch. LZZ.AE.AA is the best approximation but differs in anatomical specificity. |
| 89473002 (Exploration of tendon) | is related to | MRT.AE.AA (Exploration of tendon sheath of unspecified site) | ICHI has no exploration-of-tendon code; the closest target the tendon sheath rather than the tendon body, making it related but not equivalent. |
| 122458006 (Exploration procedure) | is related to | PZX.AE.AH (Physical examination of a body site, not elsewhere classified) | ICHI has no generic exploration-procedure category; exploration is always site-specific in ICHI. PZX.AE.AH is the closest residual category but represents physical examination rather than surgical exploration. |
| 311623002 (Expressive repair strategy) | is related to | SFA.PH.ZZ (Training in speaking) | "Expressive repair strategy" is a speech-language therapy technique for repairing communication breakdowns; "Training in speaking" is the closest functional match targeting expressive spoken communication, but not semantically equivalent. |
| 708729004 (Extensive debulking of neoplasm of abdominal cavity) | is related to | KMA.JJ.AA (Excision of peritoneal tissue) | ICHI has no dedicated debulking or cytoreductive surgery code; KMA.JJ.AA is related as it involves removing tissue from the abdominal/peritoneal space, but is conceptually distinct from neoplasm debulking. |
| 450679007 (Extraamniotic injection of abortifacient) | is related to | NME.DB.AC (Termination of pregnancy by oral medication) | ICHI has no code for intrauterine or extra-amniotic injection of an abortifacient; NME.DB.AC covers medical termination via oral medication, related but with a different route. |
| 86303001 (Extracorporeal bench surgery of kidney) | is related to | NAA.MK.AA (Repair of kidney) | ICHI has no code for extracorporeal bench surgery (ex vivo kidney repair followed by autotransplantation); NAA.MK.AA captures the reparative intent but not the extracorporeal or autotransplantation components. |
| 336651000 (Extraction of primary membranous cataract by mechanical fragmentation) | is related to | BBF.GA.AA (Mechanical fragmentation of secondary membrane) | BBF.GA.AA describes mechanical fragmentation of a secondary (post-operative) membrane, whereas the SNOMED concept refers to a primary (congenital/developmental) membranous cataract — clinically distinct conditions with the same technique. |
| 335636001 (Extraction of primary membranous cataract by phacofragmentation) | is related to | BBF.JK.AE (Phacoemulsification of lens) | Phacofragmentation (mechanical) and phacoemulsification (ultrasonic) are related but distinct techniques; BBF.JK.AE is the closest ICHI code for fragmentation-based lens extraction, but does not match the primary membranous cataract specificity. |
| 19208002 (Extraction of secondary membrane by discission) | is related to | BBF.GA.AA (Mechanical fragmentation of secondary membrane) | Both codes target the secondary membrane (posterior capsule opacification after cataract surgery) and involve its disruption, but ICHI specifies "mechanical fragmentation" rather than discission (a cutting/incision technique). The procedure intent matches closely, but the specified means/action differs. |
| 120128002 (Extraocular muscles closure) | is related to | BDA.MK.AA (Repair of extraocular muscle) | ICHI has no dedicated closure code for extraocular muscles; surgical closure is conceptually close to repair, but "closure" specifically refers to suturing muscles together (as in enucleation or orbital surgery) rather than a general repair procedure. |
| 385907003 (Eye care management) | is related to | BZZ.AA.AH (Assessment of the eye and eye functions) | No ICHI code directly represents general eye care management as a clinical management episode; the closest available code is BZZ.AA.AH (assessment of the eye and eye functions), but management encompasses more than assessment alone. |
| 274412005 (Eye disorder screening) | is related to | BTB.AC.ZZ (Test of seeing functions) | ICHI does not have a dedicated eye disorder screening code; BTB.AC.ZZ (Test of seeing functions) is the closest functional equivalent for a screening test targeting the visual system, though it focuses on functional measurement rather than disorder detection per se. |
| 449030000 (Eye movement desensitization and reprocessing therapy) | is related to | AS1.PQ.ZZ (Psychotherapy for mental functions, unspecified) | EMDR is a structured trauma-focused psychotherapy; no ICHI code exists for EMDR specifically or for trauma/PTSD psychotherapy, but AS1.PQ.ZZ captures the psychotherapy nature of the intervention at the most general level applicable. |
| 120092009 (Eye reconstruction) | is related to | BZZ.MK.AA (Repair of eye, not elsewhere classified) | ICHI distinguishes repair (MK) from reconstruction (ML) at the specific structure level, and only broadly-scoped eye codes are for eyelid or eyeball NEC structures, not the eye as an unspecified whole; BZZ.MK.AA is the best available match, but reconstruction is a meaningfully different action from repair in ICHI's action axis. |
| 120105003 (Eyelid closure) | is related to | BAA.MK.AA (Repair of eyelid) | ICHI has no dedicated code for tarsorrhaphy or eyelid closure as a named procedure; BAA.MK.AA (Repair of eyelid) is the closest structural match as surgical eyelid closure is a form of eyelid repair, but ICHI's action axis "MK" (repair) is broader than the specific closure procedure. |
| 281188002 (Fabrication of orthodontic wire work) | is related to | KAE.SM.AC (Management of external appliance of tooth) | ICHI has no code for fabricating orthodontic wirework; KAE.SM.AC covers management of a dental external appliance and is the closest available concept, but fabrication is a distinct activity from ongoing appliance management. |
| 35315008 (Facial nerve function study) | is related to | ACA.AC.AH (Peripheral nerve conduction study) | ICHI has no dedicated cranial nerve conduction or function study code; ACA.AC.AH applies to peripheral nerves generally, whereas the facial nerve is cranial nerve VII, placing the SNOMED concept outside the precise anatomical scope of this code. |
| 713149007 (Facilitating ability to perform role) | is related to | SU2.PH.ZZ (Training in engaging in work and employment, not elsewhere classified) | "Facilitating ability to perform role" is a rehabilitation intervention targeting capacity to fulfil life roles, which aligns most closely with ICHI's work/employment training domain; however, ICHI splits role performance across multiple activity/participation blocks (work, community, interpersonal) and no single code captures the generic concept. |
| 723490001 (Facilitating maintenance of physical capabilities through occupational engagement) | is related to | SXC.RB.ZZ (Practical support with engaging in recreation and leisure) | ICHI has no code for maintaining physical capabilities through occupational engagement as a combined concept; SXC.RB.ZZ captures the activity-participation dimension but does not encode the physical maintenance goal or the occupational therapy framing. |
| 866501000000108 (Facilitation of creative expression) | is related to | SXC.RB.ZZ (Practical support with engaging in recreation and leisure) | ICHI lacks a direct code for facilitating creative expression as an activity; SXC.RB.ZZ (recreation and leisure) is the closest assignable category that partially overlaps with creative engagement but does not capture the expressive/creative dimension specifically. |
| 1156583001 (Facilitation of sucking reflex) | is related to | KTC.SC.ZZ (Facilitating swallowing) | ICHI has no dedicated code for facilitating the sucking reflex; the closest entry is "Facilitating swallowing," which shares the same action within the swallowing/oro-pharyngeal function block, but sucking and swallowing are distinct reflex functions. |
| 386297005 (Family integrity promotion) | is related to | UCB.RB.ZZ (Practical support with immediate family) | ICHI has no code for promoting family integrity as a concept; "Practical support with immediate family" (UCB.RB.ZZ) within the "Interventions on support from immediate family" block is the closest actionable match, but it addresses tangible support provision rather than the cohesion/resilience promotion intent of the SNOMED concept. |
| 386299008 (Family involvement promotion) | is related to | UCB.TD.ZZ (Collaboration relating to support from immediate family) | "Family involvement promotion" describes actions to engage family members as active participants in a patient's care; "Collaboration relating to support from immediate family" (UCB.TD.ZZ) is the closest ICHI code as it represents a structured collaborative engagement with immediate family, though ICHI frames it as an environmental/support intervention rather than a clinical promotion strategy. |
| 386300000 (Family mobilization) | is related to | UCB.VA.ZZ (Capacity building targeting support from immediate family) | "Family mobilization" in nursing terminology refers to activating and strengthening a family's resources and participation in care; "Capacity building targeting support from immediate family" (UCB.VA.ZZ) shares this empowerment/activation orientation but is framed as a public health/environmental capacity-building action rather than a direct clinical nursing intervention. |
| 406170006 (Family presence facilitation) | is related to | SSJ.RC.ZZ (Emotional support for engaging in family relationships) | Family presence facilitation is a clinical action of actively enabling and supporting family involvement at a patient's bedside, which is related to emotional support for family relationships (SSJ.RC.ZZ), but ICHI encodes the patient's relationship engagement rather than a clinician-led logistical/supportive act of facilitating family presence. No closer ICHI code exists for this nursing intervention concept. |
| 302245002 (Family, systemic, couple and sex therapy) | is related to | SSJ.PQ.ZZ (Psychotherapy for engaging in family relationships) | The SNOMED concept is a broad multimodal psychotherapy category spanning family, systemic, couple, and sexual dimensions, while SSJ.PQ.ZZ covers only the family relationships psychotherapy component; the couple and sex therapy aspects would require SSM.PQ.ZZ and NUA.PQ.ZZ respectively, so no single ICHI code covers the full scope. |
| 264980004 (Fasciotomy thigh) | is related to | MNL.FB.AA (Division of ligament or fascia of lower leg) | ICHI contains no assignable code for division/incision of fascia of the thigh (MLL exists only as a target-axis code, not a procedure code, and there is no MLL.FB.AA). The nearest anatomically adjacent assignable fasciotomy-class code is MNL.FB.AA (lower leg), but it is a different anatomical site; no adequate thigh-specific match exists. |
| 313955008 (Fecal A1 antitrypsin measurement) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI does not have a code for measurement of alpha-1 antitrypsin in faeces; the closest related intervention is faeces specimen collection (PZX.AH.XG), which is a prerequisite step but does not capture the analytic measurement itself. No laboratory analysis code for this specific stool marker exists in ICHI. |
| 83033005 (Fecal analysis) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI has no general "fecal analysis" or "examination of faeces" category; the only faeces-specific procedural code is specimen collection (PZX.AH.XG), which is related but narrower in scope than the broader analytical concept encoded by this SNOMED term. |
| 313615009 (Fecal chymotrypsin measurement) | is related to | PZX.AH.XG (Specimen collection of faeces) | As with other specific fecal enzyme measurements, ICHI contains no code for chymotrypsin measurement in faeces; the only available faeces-specific code is specimen collection (PZX.AH.XG), which is procedurally related but does not represent the analytical measurement. |
| 391382007 (Fecal coproporphyrin level) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI does not encode specific porphyrin level measurements in stool; the only available faeces-related procedure code is specimen collection (PZX.AH.XG), making it the closest related intervention despite not capturing the measurement/quantification aspect. |
| 314086005 (Fecal fat screening test) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI does not have a specific code for fecal fat measurement or stool fat screening; the closest available code captures the specimen collection of faeces as the procedural act, but does not represent the analytical/quantitative fat measurement component. |
| 401259005 (Fecal fructose level) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI has no code for measurement of specific reducing sugars (fructose) in stool; the specimen collection of faeces code captures only the pre-analytical step, not the fructose quantification itself. The mapping is relatedto because the specimen collection is a necessary but insufficient component of the full procedure. |
| 401257007 (Fecal galactose level) | is related to | PZX.AH.XG (Specimen collection of faeces) | Same reasoning as fecal fructose — ICHI contains no category-level code for measuring galactose concentration in faeces; PZX.AH.XG represents the specimen collection step only and is the closest available procedural anchor in the classification. |
| 407702002 (Fecal glucose level) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI does not include a code for glucose measurement in stool; as with the other fecal sugar level concepts, PZX.AH.XG covers specimen collection of faeces but does not encode the quantitative glucose analysis, making it a related but not equivalent match. |
| 46227000 (Fenestration of aortic aneurysm) | is related to | HIH.ML.AA (Reconstruction of abdominal aorta) | Fenestration of an aortic aneurysm (creating true-false lumen communication in dissection) is a distinct vascular procedure not represented in ICHI; HIH.ML.AA is the closest related code for open aortic work, but fenestration is neither excision nor reconstruction. |
| 725370006 (Fenestration of dissection of thoracic aorta) | is related to | HIG.FA.AA (Incision of descending thoracic aorta) | Fenestration of an aortic dissection (creating an opening in the intimal flap to re-establish true lumen flow) is a form of incision/opening of the thoracic aorta; HIG.FA.AA is the closest procedural analogue, though it does not capture the dissection context or fenestration intent. |
| 232895007 (Fenestration operation to atrioventricular valve chordae tendinae) | is related to | HDF.MK.AA (Repair of mitral valve or subvalvar apparatus) | This SNOMED concept covers both mitral and tricuspid chordae (atrioventricular = both AV valves), so no single ICHI code is equivalent; HDF.MK.AA is the closest single code but covers only one of the two AV valves. |
| 177091002 (Fetoscopic sampling of fetal blood) | is related to | NMR.AD.AD (Biopsy of fetal structures) | ICHI has no specific code for fetoscopic fetal blood sampling; NMR.AD.AD (biopsy of fetal structures) is the closest procedure within the fetal interventions block, but biopsy implies tissue collection rather than blood. |
| 173806000 (Fiberoptic endoscopic cauterization of lesion of upper gastrointestinal tract) | is related to | BlockL4-KBA (Interventions on gastrointestinal tract) | ICHI has no single code spanning the entire upper GI tract; endoscopic destruction codes exist only at the organ level (oesophagus, stomach, duodenum), so the block for gastrointestinal tract interventions is the closest representative anchor. |
| 173803008 (Fiberoptic endoscopic extirpation of lesion of upper gastrointestinal tract) | is related to | KBI.JI.AD (Endoscopic local excision of lesion of duodenum) | ICHI has no single code covering the entire upper GI tract; "extirpation" maps most closely to endoscopic local excision at an upper GI organ, but the SNOMED concept spans oesophagus, stomach, and duodenum collectively, so no individual ICHI category is semantically equivalent. |
| 173812005 (Fiberoptic endoscopic insertion of prosthesis into upper gastrointestinal tract) | is related to | KBA.LH.AD (Endoscopic dilatation with insertion of oesophageal prosthesis) | ICHI's closest code covers endoscopic prosthesis insertion into the oesophagus, but it is tied to a dilatation procedure and does not encompass stomach or duodenal prosthesis insertion; no single ICHI code covers the full upper GI tract. |
| 405245006 (Fibular head transposition) | is related to | MNB.FA.AA (Osteotomy of tibia or fibula) | Fibular head transposition surgically repositions the fibular head and inherently requires osteotomy of the fibula. No ICHI code for fibular transposition exists, and osteotomy alone does not capture the relocation aspect, so the relationship is related rather than equivalent. |
| 410387002 (Finances surveillance) | is related to | SVG.AA.ZZ (Assessment of engaging in economic self-sufficiency) | "Finances surveillance" implies ongoing monitoring of a person's financial situation as a health-related social determinant, conceptually related to assessing economic self-sufficiency; however, ICHI's SVG.AA.ZZ focuses on rehabilitation-oriented assessment rather than surveillance of financial status. |
| 10652008 (Fistulization of cisterna chyli) | is related to | DFP.FA.AA (Fistulisation of thoracic duct) | The cisterna chyli is the dilated origin of the thoracic duct and is anatomically distinct from the thoracic duct proper, so DFP.FA.AA is a related but not equivalent match; ICHI has no separate code for the cisterna chyli itself. |
| 65961009 (Fistulization of endolymphatic sac for decompression) | is related to | CCA.LI.AA (Endolymphatic shunt) | CCA.LI.AA represents creation of an endolymphatic shunt, sharing the same anatomical target and decompressive intent as endolymphatic sac fistulization, but the specific procedure type differs (shunt versus fistulization); no dedicated fistulization-of-endolymphatic-sac code exists in ICHI. |
| 265706008 (Fixation of bone of face) | is related to | MAB.LD.AA (Open reduction of facial bone, not elsewhere classified) | ICHI uses "reduction" (LD action axis) rather than "fixation" as its primary term for stabilising facial bone fractures, and MAB.LD.AA is the unspecified/NEC facial bone code in that action class. "Fixation of bone of face" in SNOMED is a broad concept covering both internal and external fixation methods, while MAB.LD.AA implies open surgical approach, making this a related-but-not-equivalent match. |
| 47279007 (Flail extremity rehabilitation) | is related to | MUB.PG.ZZ (Assisting and leading exercise for muscle power functions) | A flail extremity (flaccid/paralysed limb) rehabilitation programme primarily targets restoration of muscle power and voluntary movement; MUB.PG.ZZ (assisting and leading exercise for muscle power functions) is the most relevant single ICHI code, but it captures only one component of a multi-domain rehabilitation programme and does not encode the extremity target or the flail/flaccid nature of the condition. |
| 385747001 (Fluid balance regulation management) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | ICHI's ETE block (Interventions on water, mineral and electrolyte balance functions) is the closest domain match, and ETE.AA.ZZ is the only assignable code covering fluid balance at the physiological level. It captures only the assessment component of fluid balance regulation, whereas the SNOMED concept encompasses the broader ongoing management/regulation process. |
| 717244008 (Fluid intake management) | is related to | SMG.AB.ZZ (Measurement of fluid intake) | ICHI does not have a code for managing fluid intake as a composite clinical activity; SMG.AB.ZZ (Measurement of fluid intake) captures the monitoring/measurement dimension within the drinking self-care domain (SMG). The SNOMED concept is broader, encompassing monitoring, adjustment, and intervention, while this ICHI code covers only the measurement component. |
| 717245009 (Fluid output management) | is related to | NTC.AB.ZZ (Measurement of urinary excretory functions) | ICHI lacks a dedicated code for fluid output management; NTC.AB.ZZ (Measurement of urinary excretory functions) is the closest available code, as urinary output is the primary component of fluid output monitoring in clinical practice. The SNOMED concept is broader, including non-urinary outputs (e.g., drainage, perspiration) and active management beyond measurement alone. |
| 25389001 (Fluid restriction) | is related to | SMG.PN.ZZ (Advising about drinking) | ICHI does not have a dedicated code for clinically prescribing fluid restriction; the closest conceptual match is advising about drinking (SMG.PN.ZZ) within the self-care domain, but this captures only the counselling aspect and not the clinical prescription/management component of fluid restriction. |
| 65881006 (Fluorescence activated cell sorter assay) | is related to | XG5FX1 (Essential flow cytometry panel of antibodies for leukaemia) | ICHI contains only one flow cytometry code (XG5FX1), which is restricted to a specific leukaemia antibody panel, whereas the SNOMED concept describes the general FACS technique used across many applications; no general flow cytometry or cell sorting code exists in ICHI. |
| 252820003 (Fluorescence imaging) | is related to | BCC.BA.BE (Fluorescein angiography of retina) | ICHI has no generic fluorescence imaging code; the only fluorescence-based imaging code found is fluorescein angiography of the retina (BCC.BA.BE), which represents one specific clinical application of fluorescence imaging and is far narrower and anatomically specific compared to the SNOMED concept. |
| 30662005 (Fluorescent immunoassay) | is related to | XG8EX8 (Rapid immunoassay detecting viral proteins) | ICHI has no code for fluorescent immunoassay as a technique; the closest available code is a rapid immunoassay for viral proteins (XG8EX8), which shares the immunoassay method but is restricted to a specific viral application and does not represent the broader fluorescence-based immunoassay technique. |
| 406858009 (Fluorescent stain method) | is related to | XG69Q0 (Microscopy) | ICHI has no code for fluorescent staining as a laboratory method; the closest available concept is the generic microscopy extension code (XG69Q0), as fluorescent staining is typically a preparatory step used in microscopic examination, but the ICHI code is much broader and does not specify the staining technique. |
| 431727003 (Fluoroscopic angiography of graft using contrast with insertion of stent) | is related to | IZA.LH.AF (Percutaneous transluminal dilatation with insertion of device into artery, not elsewhere classified) | ICHI has no specific code for interventions on a vascular bypass graft as a target; IZA.LH.AF captures the percutaneous stent insertion into an unspecified artery and is the closest available code, but it does not reflect that the target is a pre-existing graft rather than a native artery, making this a related rather than hierarchically equivalent match. |
| 429815004 (Fluoroscopic angiography with contrast and atherectomy by laser) | is related to | IFA.JE.AA (Endarterectomy of artery of lower limb) | ICHI has no atherectomy code; endarterectomy is the closest structural analogue (plaque removal from an arterial wall), but it differs in mechanism (open surgical vs. catheter-based laser ablation) and does not capture the combined fluoroscopic angiography component. |
| 433023004 (Fluoroscopic dacryocystoplasty) | is related to | BAD.BA.BB (Contrast dacryocystogram) | BAD.BA.BB captures the contrast imaging of the lacrimal sac under fluoroscopy but represents only the diagnostic/imaging aspect; the SNOMED concept is a therapeutic dilation/plasty procedure, and no ICHI code for dacryocystoplasty or dilation of the lacrimal sac exists in the classification. |
| 419108008 (Fluoroscopic pharyngography) | is related to | KTC.BA.BB (Video fluoroscopy to evaluate swallowing) | No dedicated ICHI code for fluoroscopic contrast imaging of the pharynx (pharyngography) exists; KTC.BA.BB is the only fluoroscopy-of-pharynx-related code in ICHI, but it is functionally defined as a swallowing evaluation (videofluoroscopic swallow study) rather than a general pharyngeal imaging procedure. |
| 711280003 (Fluoroscopy guided gastrojejunostomy tube procedure) | is related to | KBK.LI.AJ (Percutaneous endoscopic jejunostomy) | Both involve percutaneous placement of a tube providing access to the jejunum, but the ICHI code specifies endoscopic guidance rather than fluoroscopic guidance, and a gastrojejunostomy tube traverses both the stomach and jejunum whereas KBK.LI.AJ is a direct jejunal access procedure — the concepts are closely related but not equivalent in approach or anatomy. |
| 847581000000105 (Fluoroscopy guided intra-arterial injection of antineoplastic agent into ophthalmic artery with contrast) | is related to | IBA.DB.AF (Thrombolysis of artery of head and neck) | No ICHI code exists for intra-arterial drug injection into the ophthalmic artery specifically; the ophthalmic artery is a terminal branch arising intracranially and is not enumerated as its own block in ICHI. IBA.DB.AF represents percutaneous injection into the artery of the head and neck, but the action axis encodes thrombolysis rather than antineoplastic delivery, making this only a related match rather than equivalent. |
| 719888000 (Fluoroscopy guided intravenous cardiac arrhythmia drug challenge test with contrast) | is related to | HFC.AF.AF (Electrophysiological study of heart) | There is no ICHI code for a pharmacological (drug challenge) provocation test targeting cardiac arrhythmia; HFC.AF.AF is the closest related code in the conducting system block as it covers cardiac electrophysiological assessment, but it represents a structural EP study rather than a drug-induced arrhythmia challenge and does not capture the fluoroscopy, intravenous drug, or contrast elements. |
| 710129002 (Fluoroscopy guided neurolysis of splanchnic nerve) | is related to | ADC.JK.AA (Total excision of thoracic sympathetic nerve) | ICHI classifies splanchnic nerve interventions under the thoracic sympathetic nervous system (the thoracic splanchnic nerves arise from thoracic sympathetic ganglia), but the closest action available is total excision (sympathectomy/neurectomy) rather than neurolysis specifically; no fluoroscopy-guided neurolysis or chemical neurolysis code for the splanchnic nerve exists in ICHI, making this only a related concept rather than a true match. |
| 737083005 (Fluoroscopy guided percutaneous chemosaturation of hepatic artery with contrast) | is related to | IEA.LA.AF (Endovascular embolisation or occlusion of abdominal or pelvic artery) | Chemosaturation (isolated hepatic arterial perfusion with chemotherapy) involves endovascular catheterization of the hepatic artery but the primary intent is intra-arterial drug delivery, not occlusion or embolization — making any ICHI circulatory code only a related match. No dedicated ICHI code exists for intra-arterial chemoperfusion; IEA.LA.AF covers the target vessel and endovascular approach but misrepresents the procedure's action. |
| 869331000000103 (Fluoroscopy guided percutaneous radiofrequency ablation of renal artery) | is related to | IEA.LA.AF (Endovascular embolisation or occlusion of abdominal or pelvic artery) | ICHI has no specific code for radiofrequency ablation of the renal artery; the renal artery falls under the abdominal/pelvic artery block, but the mechanism (RF ablation for denervation vs. occlusion) and clinical intent differ substantially. |
| 1351589003 (Fluoroscopy guided percutaneous transluminal alcohol-mediated perivascular sympathetic denervation of renal artery with contrast) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | ICHI has no dedicated code for chemical/alcohol-mediated sympathetic denervation of the renal artery; ADA.ZZ.ZZ captures the sympathetic nervous system target but misses the chemical means, transluminal approach, renal artery specificity, and fluoroscopic guidance. |
| 819781000000104 (Fluoroscopy guided percutaneous transluminal radiofrequency sympathetic denervation of renal artery) | is related to | IEA.LG.AF (Percutaneous transluminal dilatation of abdominal or pelvic artery) | No ICHI code exists for renal artery sympathetic denervation; IEA.LG.AF captures the percutaneous transluminal approach to an abdominal artery but the action axis (dilatation) does not reflect denervation/destruction. |
| 711217008 (Fluoroscopy guided puncture of cervical subarachnoid space) | is related to | ABG.AH.AE (Lumbar puncture) | There is no ICHI code specifically for puncture of the cervical subarachnoid space; the only named spinal puncture code is ABG.AH.AE (Lumbar puncture), which targets the lumbar region. The two share action and general anatomical domain but differ in spinal level. |
| 710289007 (Fluoroscopy guided repair of bone) | is related to | MRB.ML.AA (Bone graft of unspecified site) | ICHI has no code explicitly for "repair of bone" — the closest reconstructive bone procedure at an unspecified site is bone graft (MRB.ML.AA), which implies grafting rather than generic repair. |
| 711486006 (Fluoroscopy guided shunt procedure) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | The SNOMED concept is intentionally broad, covering any fluoroscopy-guided shunt procedure (vascular or CSF); IZA.SN.AF is specifically limited to arteriovenous shunts managed percutaneously, making the relationship approximate. |
| 702571007 (Fluoroscopy guided thrombolysis with contrast) | is related to | IZA.DB.AF (Thrombolysis of artery, not elsewhere classified) | ICHI encodes thrombolysis by specific vessel type while the SNOMED concept is vessel-agnostic; IZA.DB.AF captures arterial thrombolysis NEC as a representative match but ICHI does not encode fluoroscopy guidance or contrast use. |
| 274488002 (Fracture - traction) | is related to | MBZ.LC.AE (Direct or skeletal traction to the spine) | ICHI's only skeletal traction code is restricted to the spine, whereas "fracture traction" refers to traction applied to any bone/limb fracture; the relationship is conceptually related but the ICHI code is narrower in site and broader in not being fracture-specific. |
| 385691007 (Fracture care) | is related to | MRB.LD.AH (Closed reduction of bone of unspecified site) | "Fracture care" is a broad management concept encompassing assessment, reduction, immobilisation, and follow-up, none of which are fully captured by a single ICHI code; closed reduction of bone NEC is the most representative single intervention. |
| 787126003 (Fragmentation using morcellation device) | is related to | BBF.GA.AA (Mechanical fragmentation of secondary membrane) | BBF.GA.AA is the only ICHI code containing mechanical fragmentation but is specifically about the lens posterior capsule, whereas the SNOMED concept describes morcellation as a generic technique; the shared concept is mechanical fragmentation but the target tissue differs. |
| 398001004 (Frenoplasty) | is related to | KAB.FB.AC (Lingual fraenotomy) | Frenoplasty is a surgical revision/reconstruction of a frenulum (tongue or lip), broader than lingual fraenotomy (KAB.FB.AC, incision of the lingual frenulum); the labial equivalent KAA.FB.AA also exists. Neither captures the full scope, so KAB.FB.AC is the closest related code rather than equivalent. |
| 35382002 (Frozen blood thawing and processing) | is related to | DIA.JH.AF (Collection of blood or blood products) | ICHI does not contain a specific code for thawing/processing of frozen blood products; DIA.JH.AF is the closest blood-intervention code but covers collection rather than thawing/processing, so the concepts are related but not aligned. |
| 7298000 (Fulguration of skin) | is related to | LAB.GA.AH (Destruction of skin and subcutaneous cell tissue of trunk) | ICHI classifies skin interventions by anatomical sub-region and has no single site-unspecified skin destruction code; LAB.GA.AH is the closest available code but presupposes a trunk location, making it only relationally — not semantically — equivalent to the site-unspecified SNOMED concept. |
| 65952009 (Gamma ray therapy) | is related to | LZZ.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue by radiotherapy, not elsewhere classified) | ICHI models radiotherapy as site-specific destruction codes; no single generic gamma ray/radiotherapy code exists independent of target anatomy. |
| 764908001 (Ganglion impar block using fluoroscopic guidance) | is related to | ADE.DC.AE (Injection of anaesthetic into sacral sympathetic nerve) | The ganglion impar is the most caudal sympathetic ganglion; ICHI has no dedicated target. ADE.DC.AE is anatomically closest but does not capture fluoroscopic guidance or coccygeal location. |
| 1263788002 (Ganglion impar block with chemical neurolysis) | is related to | ADE.DC.AE (Injection of anaesthetic into sacral sympathetic nerve) | Chemical neurolysis is semantically distinct from anaesthetic block; ICHI has no dedicated neurolysis code for the ganglion impar, making this an approximate anatomical match only. |
| 22272000 (Ganglionectomy of nerve) | is related to | ACA.JK.AA (Excision of peripheral nerve) | ICHI has no specific ganglionectomy code; the SNOMED concept spans all nerve types whereas ACA.JK.AA covers only peripheral nerve excision. |
| 69417002 (Ganglionectomy of sympathetic nerve) | is related to | BlockL4-ADB (Interventions on sympathetic nervous system) | ICHI's sympathetic nerve excision codes require a specific anatomical region; BlockL4-ADB is the best non-region-specific representation but encompasses all intervention types. |
| 408879002 (Gastric care management) | is related to | KT2.AA.ZZ (Assessment of function of the digestive system, not elsewhere classified) | Gastric care management has no direct ICHI equivalent; the residual assessment category captures only the assessment aspect, not management. |
| 118154005 (Gastrointestinal tract closure) | is related to | KZZ.MK.AA (Repair of intestine, not elsewhere classified) | ICHI has no assignable code for closure of the GI tract as a whole; KZZ.MK.AA covers repair/closure scoped to intestine rather than the full GI tract. |
| 118157003 (Gastrointestinal tract destructive procedure) | is related to | BlockL4-KBA (Interventions on gastrointestinal tract) | Destruction codes exist for individual GI organs but no single assignable code spans the whole GI tract; the parent block is the best structural fit. |
| 170668004 (Gastrointestinal tract disease monitoring) | is related to | KZZ.ZZ.ZZ (Interventions on the digestive system, unspecified) | ICHI has no dedicated GI-tract monitoring category; monitoring codes are organ-specific. KZZ.ZZ.ZZ is the broadest digestive system residual code. |
| 118156007 (Gastrointestinal tract reconstruction) | is related to | KZZ.LB.AA (Anastomosis of intestine, not elsewhere classified) | GI tract reconstruction commonly involves anastomosis; KZZ.LB.AA is the broadest intestine-spanning anastomosis code but does not cover oesophageal/gastric reconstruction. |
| 77565007 (General afternoon and evening care of child) | is related to | SM1.RA.ZZ (Performing the task of self care, unspecified) | ICHI has no caregiver-delivered routine paediatric care code; SM1.RA.ZZ refers to the patient performing self-care rather than care delivered to a child. |
| 35613008 (General gown technique) | is related to | UEP.VE.ZZ (Health care infection control measures concerning health services, systems and policies) | ICHI encodes infection control only at health-system policy level, not at the individual procedural barrier-precaution level the SNOMED concept describes. |
| 390817007 (General psychiatric care of older adults) | is related to | AS1.AA.ZZ (Assessment of mental functions, unspecified) | ICHI has no age-group-specific psychiatric care or general "psychiatric care" intervention; AS1.AA.ZZ captures only the mental-function assessment component, not holistic ongoing care. |
| 473200002 (Genetic screening for disorder) | is related to | PYA.PP.ZZ (Genetic counselling) | The genome interventions block contains only genetic counselling; ICHI has no dedicated genetic screening/testing code, so the closest available genome-targeted intervention is conceptually distinct. |
| 424067002 (Genitourinary assessment) | is related to | NZZ.ZZ.ZZ (Interventions on the genitourinary system, unspecified) | ICHI separates urinary and genital assessments and has no combined genitourinary assessment code; NZZ.ZZ.ZZ is a residual catch-all for unspecified genitourinary interventions rather than a specific assessment. |
| 171233003 (Genitourinary disease screening) | is related to | NAN.AA.ZZ (Assessment of urinary system, not elsewhere classified) | NAN.AA.ZZ covers urinary assessment but excludes genital assessment and does not connote population-level disease screening; no genitourinary screening code exists in ICHI. |
| 225222007 (Giving encouragement) | is related to | ATF.RC.ZZ (Emotional support for global psychosocial functions) | Encouragement aligns with emotional support targeting psychosocial functions, but it is not a defined clinical intervention in ICHI; ATF.RC.ZZ presupposes a specific functional target. |
| 784396007 (Graft of skin to skin) | is related to | LZZ.ML.AA (Skin graft, not elsewhere classified) | The SNOMED concept has no specified body site; ICHI has only site-specific skin graft codes plus the residual NEC, which is the closest available semantic match. |
| 442257007 (Grafting of amniotic membrane to eye) | is related to | BBA.MK.AA (Repair of conjunctiva) | ICHI has no amniotic membrane graft code; conjunctival repair is the most common ocular surface application of amniotic membrane grafts but the graft material and broader ocular target are not encoded. |
| 10943001 (Grafting of amniotic membrane to skin) | is related to | LZZ.ML.AA (Skin graft, not elsewhere classified) | ICHI does not represent amniotic membrane grafting to skin; LZZ.ML.AA is the residual skin-graft NEC code preserving the action and domain only. |
| 1255637005 (Group consultation with midwife) | is related to | PZB.AN.ZZ (Interview in relation to the whole person) | ICHI has no concept for consultation as a service type, no midwife-specific codes, and no group-delivery dimension; PZB.AN.ZZ captures the interactive assessment character but is neither group- nor midwifery-specific. |
| 32142009 (Group preventive medicine education) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | ICHI contains no general preventive health education code; PM-action codes are tied to specific body functions; PZB.PP.ZZ is the nearest whole-person, non-surgical informational intervention but does not convey the preventive/educational intent or group setting. |
| 79441000 (Group reassurance) | is related to | ATF.RC.ZZ (Emotional support for global psychosocial functions) | ICHI has no concept labelled reassurance; "Emotional support for global psychosocial functions" is the closest semantically — reassurance is a form of emotional support — but the code does not specify reassurance as its modality, nor is it group-specific. |
| 408986006 (Growth and development care management) | is related to | ETM.AA.ZZ (Assessment of growth and development) | ICHI has no code for "management" of growth and development; the ETM block contains only assessment and education codes; assessment is the closest available action but does not capture management's broader treatment/coordination scope. |
| 385984007 (Growth and development treatments and procedures) | is related to | ETM.AA.ZZ (Assessment of growth and development) | The SNOMED concept is a broad grouping for any treatment or procedure related to growth and development, but the ICHI ETM block offers only assessment and education codes — no treatment-specific code exists. |
| 386316003 (Hallucination management) | is related to | AUF.PH.ZZ (Training of thought functions) | Hallucinations are a disturbance of perceptual/thought functions; ICHI has no specific "hallucination management" code, and while AUE (perceptual functions) or AUF (thought functions) training both partially relate, neither captures the clinical management intervention that encompasses pharmacological and non-pharmacological approaches to reducing hallucinations. |
| 121341003 (Hallucinogen identification) | is related to | VAC.AC.ZZ (Test of illicit drug use behaviours) | Hallucinogen identification is a laboratory/toxicological procedure to detect a specific class of substance, whereas VAC.AC.ZZ is a behavioural-axis code focused on the broader context of illicit drug use testing. ICHI lacks a specific laboratory substance-identification code for hallucinogens, making this the closest available concept. |
| 35274000 (Halo traction education) | is related to | MTB.PM.ZZ (Education about joint mobility) | Halo traction education is patient/caregiver education about a cervical immobilisation device used to restrict spinal movement; ICHI has no code for education specifically about traction devices or skull fixation equipment, but MTB.PM.ZZ is the closest available concept within the musculoskeletal functional domain. |
| 229119009 (Hand exercises) | is related to | MU2.PG.ZZ (Assisting and leading exercise for muscle functions, not elsewhere classified) | ICHI does not have a site-specific "hand exercise" code; the closest rehabilitation code is for assisting and leading exercise for muscle functions (NEC), which captures the therapeutic exercise intent but is not anatomically scoped to the hand. |
| 180851005 (Harvest of cartilage) | is related to | MMC.JH.AA (Procurement of knee cartilage) | ICHI has no generic unspecified-site cartilage procurement code; the only assignable cartilage procurement codes are site-specific. MMC.JH.AA is the closest available code conceptually but is restricted to the knee. |
| 180842002 (Harvest of composite of skin and cartilage from ear) | is related to | LAA.JH.AA (Procurement of skin and subcutaneous cell tissue of head or neck) | ICHI has no composite graft harvest code combining skin and cartilage; LAA.JH.AA covers skin and subcutaneous tissue procurement from the correct body region (head or neck, which includes the ear) but omits the cartilage component. |
| 180718007 (Harvest of flap of skin and fascia) | is related to | LZZ.JH.AA (Procurement of skin and subcutaneous tissue for graft or flap, not elsewhere classified) | LZZ.JH.AA explicitly covers procurement of skin and subcutaneous tissue for a flap, aligning with the flap harvest nature of the procedure, but ICHI does not capture the fascia component specifically. |
| 180838000 (Harvesting of joint of toe) | is related to | MOJ.JJ.AA (Partial excision of joint of foot or toe) | ICHI has no dedicated "procurement of joint of toe for graft" code — the JH (procurement) action does not exist under the MOJ block. Partial excision of joint of foot or toe is the closest structural match but encodes a therapeutic excision rather than a harvest-for-graft context. |
| 448361008 (Harvesting of mandible) | is related to | MAG.JJ.AA (Partial mandibulectomy) | ICHI does not have a dedicated procurement code for mandibular bone — the MAG block contains no JH action code. Partial mandibulectomy is the closest structural match involving removal of mandibular tissue, but encodes a therapeutic resection rather than harvesting for graft. |
| 385828006 (Health promotion management) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI does not have a dedicated health promotion management code; PZB.ZZ.ZZ captures a general health management encounter on the whole person but lacks the promotional/preventive population-health orientation. |
| 370995009 (Health risks education) | is related to | PZB.PP.ZZ (Counselling, not elsewhere classified) | ICHI has no "health risks education" category; PZB.PP.ZZ comes closest as a person-level non-specific educational/advisory intervention but is framed as counselling rather than education about risks. |
| 287279006 (Heart - aortic branch implant) | is related to | HIA.LI.AA (Coronary artery bypass) | The SNOMED concept describes implanting a graft at an aortic branch in the heart context, most commonly coronary artery bypass grafting; however the SNOMED term is a vague grouper that could include other aortic-branch procedures. |
| 287271009 (Heart - arterial implant) | is related to | HIA.LI.AA (Coronary artery bypass) | "Heart - arterial implant" is a broad grouper covering bypass grafts and coronary stents; HIA.LI.AA is the most representative single ICHI code, but the SNOMED concept also encompasses percutaneous coronary stent insertion. |
| 287291002 (Heart ligation) | is related to | HAA.LA.AA (Occlusion of left atrial appendage) | ICHI does not have a generic "heart ligation" code; HAA.LA.AA is the most prominent cardiac ligation/occlusion procedure but the SNOMED concept is a broader grouper that could encompass coronary or other cardiac vessel ligation. |
| 107846003 (Heart manipulation) | is related to | HTB.MC.AH (Closed chest cardiac massage) | ICHI has no generic "heart manipulation" category; HTB.MC.AH is the most clinically common form of cardiac manipulation, but the SNOMED concept is broader and could encompass open chest massage or other manual cardiac interventions. |
| 28812006 (Hemodialysis education) | is related to | NT2.PM.ZZ (Education about urinary functions, not elsewhere classified) | ICHI has no specific code for hemodialysis patient education; NT2.PM.ZZ covers educational interventions targeting urinary/renal function, the closest functional match but not semantically equivalent. |
| 386321000 (Hemodynamic regulation) | is related to | HT2.AM.ZZ (Observation of functions of the cardiovascular system, not elsewhere classified) | ICHI has no code for hemodynamic regulation as a nursing intervention; the closest available codes are cardiovascular function observation/assessment, none of which capture the active regulatory/management component. |
| 235388001 (Hemorrhoid operation) | is related to | KBX.JI.AA (Local excision of lesion of anus) | "Hemorrhoid operation" spans multiple surgical techniques (excision, banding, sclerotherapy, cryotherapy) each mapping to different ICHI codes within KBX; KBX.JI.AA represents the most common surgical approach but does not cover banding (KBX.LA.AC) or sclerotherapy (KBX.DB.AE). |
| 405330001 (Hepatic artery cannula insertion) | is related to | IEA.FA.AA (Incision of abdominal or pelvic artery) | ICHI has no dedicated code for cannula insertion into the hepatic artery; the hepatic artery falls within the abdominal/pelvic artery target group, and arterial cannulation requires an arteriotomy, but IEA.FA.AA does not capture the device-insertion aspect of the procedure. No closer code exists in the abdominal artery block. |
| 275847004 (Hepatitis notification) | is related to | UBC.VC.ZZ (Population public health surveillance) | ICHI contains no specific disease-notification code; the act of notifying authorities of a hepatitis case is most closely related to population-level public health surveillance (UBC.VC.ZZ), but this is broader and population-directed rather than a clinician-initiated statutory notification of an individual case. |
| 167257008 (High sensitivity urine pregnancy test) | is related to | XG9A84 (Human chorionic gonadotropin) | ICHI XG9A84 is an extension code representing hCG as the analyte measured, which is the substance detected by a urine pregnancy test; however, it is an extension/laboratory analyte code rather than a procedural intervention code, and does not capture the specimen type (urine), the sensitivity qualifier, or the act of testing itself, making it related but not an equivalent procedural mapping. |
| 418255003 (Hip protector education) | is related to | MTB.PM.ZZ (Education about joint mobility) | No ICHI code exists for patient education specifically about hip protector devices or fall-injury prevention equipment; the ICHI education axis (PM) applied to musculoskeletal targets is restricted to body function domains. MTB.PM.ZZ is the closest musculoskeletal education code and shares the domain, but the SNOMED concept concerns education about an external protective device rather than joint mobility per se. |
| 229210004 (Hippotherapy) | is related to | MV2.PG.ZZ (Assisting and leading exercise for movement functions, not elsewhere classified) | Hippotherapy uses the rhythmic, multidimensional movement of a horse to facilitate sensorimotor and movement-function rehabilitation, which overlaps most closely with ICHI's "assisting and leading exercise for movement functions" action on the movement-functions target. No equine-assisted therapy or hippotherapy code exists in ICHI, and the ZZ residual NEC designation acknowledges the absence of a more specific match. |
| 55804002 (History and physical examination, administrative) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | The SNOMED concept describes an administrative variant of the H&P — a documentation or administrative act rather than a clinical assessment of the person — and has no precise ICHI counterpart. PZB.ZZ.ZZ is the closest organisational placeholder within ICHI's "whole person" block, but it is both semantically vague and does not capture the administrative nature of the encounter. |
| 57224009 (History taking, medicolegal investigation) | is related to | PZB.AN.ZZ (Interview in relation to the whole person) | The SNOMED concept denotes history taking performed for medicolegal/forensic purposes, a context ICHI does not capture. PZB.AN.ZZ is related as the generic whole-person interview code, but the medicolegal purpose is a contextual mismatch. |
| 446987006 (HIV 1 genotyping) | is related to | XG2KM8 (Quantitative HIV virological nucleic acid test) | HIV genotyping (sequencing viral nucleic acid for resistance/strain identification) is related to nucleic acid testing but is not a quantitative viral load test; ICHI lacks a specific genotyping code, so this is the closest related nucleic acid-based HIV test. |
| 302282006 (Home assessment) | is related to | UAD.AA.ZZ (Assessment of products and technology for personal use in daily living) | ICHI does not have a dedicated "home assessment" code; UAD.AA.ZZ overlaps with the assistive-technology dimension of a home assessment but the SNOMED concept also encompasses environmental hazard evaluation and home modification planning beyond product/technology assessment. |
| 385783005 (Home health aide service management) | is related to | UCH.TB.ZZ (Planning in relation to support from personal care providers and personal assistants) | "Home health aide service management" aligns most closely with planning in the personal care providers block (UCH); however ICHI uses "planning" rather than "management" and frames it around the environment/support-relationships axis. |
| 385861004 (Home situation analysis education) | is related to | UAL.PM.ZZ (Education about aspects of buildings for private use) | UAL.PM.ZZ covers education specifically about private-use buildings, the closest structural match; the SNOMED concept may also encompass social and functional dimensions of the home situation not captured by the building-focused ICHI target axis. |
| 385862006 (Home situation analysis management) | is related to | UAL.AA.ZZ (Assessment of aspects of buildings for private use) | UAL.AA.ZZ captures the assessment of the physical home setting; the ICHI code does not encompass broader social or functional aspects of a "home situation" or the subsequent management actions. |
| 185462000 (Home visit request by relative) | is related to | UEP.TI.ZZ (Referral to health provider) | A relative requesting a home visit is functionally a referral or request for health services; ICHI does not capture the administrative/request nature, the domiciliary setting, or that the initiator is a family member. |
| 390818002 (Homeless mental health care) | is related to | AS1.RB.ZZ (Practical support with mental functions, unspecified) | ICHI has no code for homeless-targeted or socially marginalised mental health services; AS1.RB.ZZ partially reflects the supportive mental health care element but omits the homelessness context and broader multi-component care. |
| 232186002 (Homograft replacement of tympanic membrane and ossicles) | is related to | CBB.ML.AC (Reconstruction of tympanic membrane) | The SNOMED concept specifies homograft replacement of both tympanic membrane and ossicles, whereas ICHI has separate codes for tympanic membrane reconstruction and ossicular chain reconstruction with no combined code; neither individual code fully captures the dual-structure scope or graft type. |
| 243190005 (Honeybee desensitization therapy) | is related to | DTB.DB.AE (Percutaneous administration of immunological agent) | ICHI does not have a specific code for allergen immunotherapy or venom desensitization; percutaneous administration of an immunological agent is the closest structural match but does not capture the therapeutic desensitization intent or the honeybee-venom specificity. |
| 185911006 (Hormone replacement monitoring first letter) | is related to | VD1.VB.ZZ (Awareness raising to influence health service-related behaviours, unspecified) | This SNOMED concept describes an administrative act of sending a first reminder letter for HRT monitoring; ICHI has no code for patient correspondence or recall letters, and VD1.VB.ZZ is the nearest conceptual match. |
| 185912004 (Hormone replacement monitoring second letter) | is related to | VD1.VB.ZZ (Awareness raising to influence health service-related behaviours, unspecified) | Like the first letter concept, this describes sending a second administrative recall letter for HRT monitoring follow-up; ICHI does not represent individual patient correspondence at this granularity. |
| 185915002 (Hormone replacement monitoring telephone invite) | is related to | VD1.VB.ZZ (Awareness raising to influence health service-related behaviours, unspecified) | This concept describes a telephone-based invitation to a patient for HRT monitoring; ICHI does not have codes for individual patient recall by telephone, and VD1.VB.ZZ represents the closest intent of prompting individuals to use health services. |
| 185913009 (Hormone replacement monitoring third letter) | is related to | VD1.VB.ZZ (Awareness raising to influence health service-related behaviours, unspecified) | This represents a third administrative reminder letter for HRT monitoring attendance; ICHI lacks a dedicated code for patient recall correspondence. |
| 32485007 (Hospital admission) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI does not represent "hospital admission" as a classifiable intervention; UEP.TI.ZZ is the closest related concept as hospital admission is typically initiated by a referral/transfer, but does not capture the admission event itself. |
| 228565006 (Imagery technique) | is related to | AUF.PH.ZZ (Training of thought functions) | Guided/mental imagery is a cognitive technique involving deliberate use of mental images; no specific imagery technique code in ICHI, and AUF.PH.ZZ is the closest available category under mental functions. |
| 311621000 (Imagery therapy) | is related to | AU2.PQ.ZZ (Psychotherapy for specific mental functions, not elsewhere classified) | No dedicated imagery-therapy code in ICHI; AU2.PQ.ZZ captures psychotherapy on specific mental functions while remaining substantially broader than the defined SNOMED concept. |
| 175764006 (Imaging guided percutaneous transluminal rotablation angioplasty with contrast) | is related to | IFA.LG.AF (Percutaneous transluminal dilatation of artery of lower limb) | Rotablation is a distinct mechanical debulking technique with no dedicated ICHI atherectomy/rotablation code; closest is percutaneous transluminal dilatation, but the mechanism and specificity differ substantially. |
| 1255810005 (Imaging guided removal of foreign body from thoracic cavity) | is related to | JCA.JD.AA (Removal of internal device or foreign body from pleura) | No single ICHI code covers foreign body removal from the thoracic cavity as a whole; JCA.JD.AA covers removal from the pleura but excludes mediastinum, and neither percutaneous approach nor imaging guidance is captured. |
| 1337998006 (Imaging of cardiovascular system) | is related to | BlockL6-HZZ (Imaging on entire heart or great vessel, unspecified) | No single ICHI code/block covers the entire cardiovascular system as an imaging target; BlockL6-HZZ covers the heart and great vessels but excludes peripheral vascular imaging. |
| 442116008 (Imaging of genitourinary system) | is related to | NAN.BA.BA (X-ray of the urinary system, not elsewhere classified) | No single ICHI code covers imaging of the entire genitourinary system across all modalities; NAN.BA.BA is limited to X-ray of the urinary system only. |
| 1336147007 (Imaging of lymphatic system) | is related to | DFO.BA.BE (Nuclear imaging study of the lymphatic vessel) | ICHI offers only modality-specific lymphatic imaging codes, no block/code covering generic multi-modality lymphatic imaging; DFO.BA.BE (lymphoscintigraphy) is the most clinically prototypical but narrower in modality and scope. |
| 303747001 (Imaging of respiratory system with contrast) | is related to | JBF.BA.BB (Radiography of lung with contrast medium) | ICHI has no code for imaging of the entire respiratory system with contrast; JBF.BA.BB covers only the lung and is confined to radiography, so both target and means are more specific than the SNOMED concept. |
| 717809003 (Immediate postpartum care) | is related to | NUG.AA.ZZ (Assessment of functions related to childbirth) | ICHI has no dedicated postpartum care or puerperium category; NUG.AA.ZZ overlaps conceptually with immediate postpartum monitoring and assessment but does not capture the full scope of postpartum care as a management episode. |
| 385698001 (Immobilizer care assessment) | is related to | PZX.AA.AH (Assessment of body part, not elsewhere classified) | ICHI does not have a dedicated assessment-of-external-immobilisation-device code; PZX.AA.AH is the closest residual code in the musculoskeletal NEC block but targets the body part rather than the immobilizer as a therapeutic device. |
| 385701009 (Immobilizer care management) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | ICHI has no single immobilizer-care-management code; PZX.KB.AH covers ongoing maintenance/replacement of an external immobilisation device but the SNOMED concept is broader (monitoring, adjustment, education, removal). |
| 308433002 (Immunization call) | is related to | DTB.PN.ZZ (Advising about functions of the immunological system) | ICHI has no code for a patient-recall/call-up action for vaccination; DTB.PN.ZZ describes counselling about immune function rather than proactively contacting a patient to schedule immunization. |
| 243196004 (Immunoglobulin desensitization therapy) | is related to | DTB.DB.AF (Intravenous administration of immunological agent) | DTB.DB.AF covers IV administration of an immunological agent (the route used for IV immunoglobulin desensitization protocols), but the ICHI code captures only the route, not the desensitization/tolerance-induction therapeutic intent. |
| 408907000 (Immunological care management) | is related to | DTB.AA.ZZ (Assessment of immunological system functions) | No ICHI code specifically represents immunological care management; DTB.AA.ZZ is the closest code within the DTB block but captures only the assessment component, not the broader management activities. |
| 707311008 (Immunosuppressant drug therapy) | is related to | DTB.DB.AF (Intravenous administration of immunological agent) | No single ICHI code maps to immunosuppressant drug therapy as a general concept; DTB.DB.AF (IV administration of an immunological agent) is the most clinically common route but does not distinguish immunosuppressive from immunostimulatory agents. |
| 19784002 (Implant of mechanical kidney) | is related to | NAA.JC.AF (Renal dialysis) | ICHI contains no specific code for implantation of a mechanical/artificial kidney device; renal dialysis is the most functionally related code since a mechanical kidney serves as a dialysis substitute, but the procedure class differs. |
| 1367964006 (Implantation of aqueous humor drainage implant) | is related to | BBE.JB.AA (Drainage of anterior chamber of eye) | ICHI has no dedicated code for implantation of a glaucoma drainage device; BBE.JB.AA captures the target site and drainage purpose but omits the defining feature of permanent device implantation. |
| 698939004 (Implantation of artificial iris) | is related to | BBC.MK.AA (Repair of iris) | ICHI contains no dedicated code for artificial iris implantation; the iris block has repair, excision, biopsy, and drainage codes but no insertion-of-prosthetic-iris category. BBC.MK.AA is in the correct anatomical block but does not specifically encode prosthesis implantation. |
| 442395000 (Implantation of artificial sphincter) | is related to | NAI.DN.AA (Implantation of device into urinary bladder) | This SNOMED concept covers artificial sphincters at any site (urinary, anal, oesophageal); ICHI has no single code spanning all artificial sphincters, and NAI.DN.AA covers only the urinary bladder context. |
| 63077009 (Implantation of blood vessels into myocardium) | is related to | HFD.FA.AA (Transmyocardial revascularisation) | The SNOMED concept describes the Vineberg procedure (direct vessel implantation into myocardium), whereas HFD.FA.AA refers to transmyocardial revascularisation using laser-created channels — both improve myocardial perfusion but by different means. |
| 265597008 (Implantation of bulbar urethral prosthesis for incontinence) | is related to | NAI.DN.AA (Implantation of device into urinary bladder) | ICHI has no dedicated code for implantation of a device into the urethra; NAI.DN.AA targets the urinary bladder rather than the bulbar urethra, making this an anatomically imprecise related match. |
| 68549008 (Implantation of cineplastic prosthesis of biceps) | is related to | MEM.ML.AA (Reconstruction of muscle of upper limb) | Cineplastic prosthesis surgery creates a skin-lined tunnel through a muscle to harness contraction for a prosthetic limb; no ICHI code exists for this technique, and MEM.ML.AA only loosely covers upper limb muscle reconstruction. |
| 24994004 (Implantation of cineplastic prosthesis of upper arm) | is related to | MEM.ML.AA (Reconstruction of muscle of upper limb) | Same cineplastic prosthesis procedure as for biceps but at the upper arm level; MEM.ML.AA is the closest available ICHI code, capturing upper limb muscle reconstruction without the cineplastic technique. |
| 72528001 (Implantation of custodis eye) | is related to | BCB.ML.AA (Reinforcement of sclera) | The Custodis procedure is a non-draining retinal detachment repair involving an indentation/buckling element on the sclera, most closely aligned with scleral reinforcement; ICHI has no specific code for the Custodis technique. |
| 898184003 (Implantation of neurostimulator device) | is related to | ACA.DL.AA (Insertion of device into peripheral nerve) | The SNOMED concept is a high-level category for any neurostimulator device (brain, spinal cord, or peripheral nerves), while ACA.DL.AA is specific to peripheral nerve device insertion; ICHI has no single generic neurostimulator implantation code. |
| 1234905008 (Implantation of subcutaneous cardioverter defibrillator lead) | is related to | HFC.DN.AF (Percutaneous transluminal implantation of permanent endocardial pacemaker or defibrillator system) | ICHI has no specific code for a subcutaneous ICD lead (placed entirely in subcutaneous space, not transvenously); HFC.DN.AF covers endocardial implantation via a transluminal route, which is a related but distinct approach. |
| 118955007 (Implantation to cardiovascular system) | is related to | HZZ.DN.AA (Implantation of cardiac assist device, not elsewhere classified) | The SNOMED concept is a broad non-specific category covering any cardiovascular implantation, while HZZ.DN.AA is a specific cardiac assist device implantation code — neither is a true subset of the other. |
| 711025004 (Implementation of cluster care) | is related to | PZB.TD.ZZ (Case coordination) | Cluster care (grouping nursing interventions to minimise patient disturbance) has no direct ICHI equivalent; PZB.TD.ZZ is the closest available code covering organised multi-component care management but captures coordination across providers rather than task-bundling. |
| 225304007 (Implementation of planned interventions) | is related to | PZB.TB.ZZ (Individualised planning) | "Implementation of planned interventions" is a high-level nursing process concept for which ICHI has no direct equivalent; PZB.TB.ZZ addresses personalised care planning but emphasises planning rather than execution. |
| 228586006 (Improvization technique) | is related to | XG2BX7 (Music therapy) | ICHI has no code for improvisation as a distinct technique. Improvisation in clinical context is most commonly used in music therapy, but XG2BX7 is a creative-therapy extension qualifier, not a procedure code, and does not capture improvisation specifically. |
| 22223007 (Incision and drainage of lateral pharyngeal space) | is related to | DAA.JB.AA (Open drainage or aspiration of retropharyngeal abscess) | ICHI has no code specifically for the lateral (parapharyngeal) space; DAA.JB.AA represents open surgical drainage of a deep pharyngeal space abscess (retropharyngeal) and is the closest available code but a different anatomical space. |
| 363155009 (Incision AND drainage of limb) | is related to | MRS.JB.AA (Drainage of soft tissue of unspecified site) | ICHI lacks a specific code for incision and drainage of a limb as a whole; limb-specific skin/subcutaneous codes exist for upper limb (LAE.JB.AA) and lower limb separately. MRS.JB.AA captures soft tissue drainage at unspecified site as a fallback but does not capture the incision component. |
| 10918007 (Incision and drainage of retropharyngeal tissue) | is related to | DAA.JB.AA (Open drainage or aspiration of retropharyngeal abscess) | The SNOMED concept refers to drainage of retropharyngeal tissue in general (not limited to an abscess), while the only available ICHI code specifies drainage of a retropharyngeal abscess; clinically related but the ICHI code presupposes a specific pathology. |
| 75586006 (Incision and drainage of spinal cord) | is related to | ABG.JB.AE (Drainage of spinal canal) | ICHI has no code specifically for incision and drainage of the spinal cord itself — the spinal cord block contains no drainage code. The closest related codes are drainage of the spinal canal or spinal meninges, which are anatomically adjacent but not equivalent. |
| 61589008 (Incision and exploration of frontonasal duct) | is related to | JAG.FA.AA (Frontal sinusotomy) | The frontonasal duct drains the frontal sinus into the nasal cavity; incision and exploration of this duct is anatomically adjacent to frontal sinusotomy but not identical — sinusotomy targets the sinus itself rather than the duct. |
| 239879006 (Incision and exploration of hepatic ducts) | is related to | KCM.AE.AA (Exploration of common bile duct) | ICHI classifies hepatic duct interventions under the broader bile duct target (KCM); KCM.AE.AA represents exploration of the common bile duct rather than the hepatic ducts specifically, and the SNOMED concept stresses incision-and-exploration as a combined act. |
| 38053008 (Incision and exploration of lymphatic structure) | is related to | DFZ.JB.AA (Drainage of lymphatic structure, not elsewhere classified) | ICHI has no incision or exploration code for lymphatic structures — the DFZ block contains only assessment, biopsy, drainage, and partial excision codes. Drainage is the closest procedurally related code since incision often serves a drainage purpose. |
| 444666002 (Incision and exploration of perineum) | is related to | PAW.FA.AA (Episiotomy) | PAW.FA.AA is the only incision-of-perineum code in the PAW block, but its title is "Episiotomy" — a specific obstetric incision — rather than a generic incision and exploration of the perineum; ICHI has no generic perineum incision/exploration code outside of episiotomy. |
| 52445009 (Incision and exploration of periprostatic tissue) | is related to | NGA.FA.AA (Incision of prostate) | ICHI contains no code for periprostatic tissue specifically; the closest available code targets the prostate itself rather than the surrounding connective tissue, which is anatomically and procedurally distinct. |
| 53816005 (Incision and exploration of perirenal tissue) | is related to | NAA.AE.AA (Exploration of kidney) | ICHI has no specific code for perirenal tissue (fat and fascia surrounding the kidney); the only closely related exploration code targets the kidney organ itself, which is anatomically distinct from the perirenal space. |
| 45049008 (Incision and exploration of popliteal space) | is related to | MMJ.FA.AA (Arthrotomy of knee joint) | ICHI has no code for incision or exploration of the popliteal fossa as a distinct compartment; arthrotomy of the knee joint is the nearest available code but targets the joint cavity rather than the posterior popliteal soft-tissue space. |
| 52346009 (Incision and exploration of spermatic cord) | is related to | NGD.FA.AA (Vasotomy) | NGD.FA.AA (Vasotomy) is the only incision-action code in the spermatic cord block, but it specifically denotes incision of the vas deferens for a defined surgical purpose rather than a generic exploratory incision of the spermatic cord as a whole. |
| 22960002 (Incision of fascial compartments of neck) | is related to | MRS.FA.AA (Incision of soft tissue of unspecified site) | ICHI has no dedicated neck fascia or fascial compartment incision code — the MAM (muscle of head/neck) and MAS (soft tissue of head/neck) blocks lack an incision child code, leaving MRS.FA.AA (incision, soft tissue, unspecified site) as the best available approximation; it matches the action but loses both the neck site and the fascial-compartment specificity. |
| 50638005 (Incision of hymen) | is related to | NMH.JJ.AC (Hymenectomy) | ICHI contains no hymenotomy (incision) code — only NMH.JJ.AC Hymenectomy (excision of the hymen), which is a related but procedurally distinct intervention; an incision preserves tissue whereas excision removes it. |
| 45495006 (Incision of lip) | is related to | KAA.JB.AA (Drainage of lip) | ICHI has no dedicated incision of lip code (KAA.FA.AA does not exist in the classification), and the closest available procedure on the lip is drainage, which is typically the clinical purpose of a lip incision; however, drainage is a distinct action from incision, so the match is relational rather than equivalent. |
| 58073007 (Incision of lymph node) | is related to | DFA.JB.AA (Drainage of lymph node, not elsewhere classified) | ICHI contains no incision of lymph node code (DFA.FA.AA does not exist), and drainage is the most clinically related procedure available on the lymph node target; incision and drainage are closely related but semantically distinct actions. |
| 7412000 (Incision of lymphangioma) | is related to | DFO.JI.AA (Local excision of lesion of lymphatic vessel) | A lymphangioma is a lesion of the lymphatic vessel, so the target aligns; however, ICHI has no incision code for lymphatic vessel lesions, and local excision (JI) is a different action from incision (FA), making this only a related match rather than equivalent. |
| 78114007 (Incision of periprostatic tissue) | is related to | NGA.FA.AA (Incision of prostate) | ICHI has no code for incision of periprostatic (peri-glandular) tissue; the closest available code targets the prostate gland itself rather than the surrounding connective tissue, making it anatomically related but not equivalent. |
| 30405000 (Incision of periureteral tissue) | is related to | NAE.FA.AA (Ureterotomy) | ICHI has no code for incision of periureteral tissue specifically; NAE.FA.AA (Ureterotomy) covers incision of the ureter itself, not the surrounding periureteral tissue, so it is related but not the same target structure. |
| 175974003 (Incision of periurethral tissue) | is related to | NAM.FA.AA (Urethrotomy) | ICHI contains no code for incision of periurethral tissue; NAM.FA.AA (Urethrotomy) is the closest available code but refers to incision of the urethra itself rather than the surrounding periurethral tissue, making it related rather than equivalent. |
| 52249000 (Incision of sebaceous cyst) | is related to | LZZ.JB.AA (Drainage of skin and subcutaneous cell tissue, not elsewhere classified) | ICHI has no specific code for incision of a sebaceous cyst; clinically, incision of a sebaceous cyst is performed to achieve drainage, making the drainage NEC code the closest functional match, but it does not capture the cyst-specific nature of the procedure nor the skin appendage origin of sebaceous glands. |
| 179750003 (Incision of soft tissue of hand) | is related to | MGL.FA.AA (Incision of ligament or fascia of hand or finger) | ICHI has no single "soft tissue of hand" incision code — the hand musculoskeletal block only codes specific tissue types individually (ligament/fascia, muscle, tendon); fascia is the connective soft tissue most commonly targeted in hand incisions (e.g. for compartment syndrome), making this the closest available match, but it does not cover the full scope of soft tissue. |
| 59965006 (Incision of submental space) | is related to | LAA.JB.AA (Drainage of skin and subcutaneous cell tissue of head or neck) | ICHI has no specific code for incision of the submental fascial space; this fascial space lies within the skin and subcutaneous tissue of the neck, making LAA.JB.AA the closest anatomical fit. However, the action differs (drainage vs. plain incision) and the target is broader, so the match is relatedto rather than equivalent. |
| 439004001 (Incision of superficial abscess of soft tissue) | is related to | MRS.JB.AA (Drainage of soft tissue of unspecified site) | Incision of a superficial abscess is functionally equivalent to drainage, and MRS.JB.AA captures drainage of soft tissue without a specified anatomical site, which aligns with the unspecified-site nature of this SNOMED concept. The action axis difference (incision/FA vs. drainage/JB) and absence of abscess specificity in ICHI prevent a closer equivalence. |
| 27646006 (Incision of supraclavicular fossa) | is related to | LAA.JB.AA (Drainage of skin and subcutaneous cell tissue of head or neck) | The supraclavicular fossa is a soft tissue region at the base of the neck, falling within the head/neck skin and subcutaneous tissue domain of LAA.JB.AA. No ICHI-specific code exists for this fossa, and the action axis is drainage rather than incision, so this is a relatedto mapping rather than a direct equivalent. |
| 47687003 (Incision of tendon sheath) | is related to | MRT.AE.AA (Exploration of tendon sheath of unspecified site) | ICHI has no code specifically titled "incision of tendon sheath"; exploration of the tendon sheath (AE action) typically requires opening (incising) the sheath and is operationally related, but the documented action axis (AE = exploration) does not precisely capture the surgical intent of incision as the primary procedure. |
| 1287825001 (Incision of vascular structure of neck) | is related to | IZE.FA.AA (Incision of blood vessel, not elsewhere classified) | The SNOMED concept deliberately covers any vascular structure (artery or vein) of the neck without specifying which; IZE.FA.AA is a residual "not elsewhere classified" incision of blood vessel code that best preserves this non-specificity, though ICHI does have more specific neck vessel codes that would be used when the specific vessel is known. |
| 449304008 (Incision of vascular structure of upper limb) | is related to | ICA.FA.AA (Incision of artery of upper limb) | The SNOMED concept covers any vascular structure (artery or vein) of the upper limb, while ICA.FA.AA covers only the arterial side; no incision code exists in ICHI for the vein of upper limb (ICD block), making a precise match impossible. ICA.FA.AA is the closest partial match within the upper limb vascular territory. |
| 17868003 (Incisional discission of anterior hyaloid) | is related to | BCA.FA.AA (Incision of posterior chamber) | The anterior hyaloid membrane is the anterior face of the vitreous body, located at the posterior chamber boundary; ICHI has no specific code for hyaloid incision/discission, making "Incision of posterior chamber" (BCA.FA.AA) the closest anatomical match, though it is not semantically precise as it does not capture the hyaloid target or discission technique. |
| 426155000 (Induction of deep sedation) | is related to | PZA.DC.AF (Intravenous anaesthesia) | ICHI has no code for sedation as a distinct practice spectrum (minimal/moderate/deep); the closest available codes are for anaesthesia by route, which are related but not equivalent — deep sedation is clinically distinct from general anaesthesia and defined by depth of consciousness suppression, not delivery route. |
| 427255001 (Induction of minimal sedation) | is related to | PZA.DC.AF (Intravenous anaesthesia) | ICHI has no code distinguishing sedation depth levels; PZA.DC.AF is the closest available code but is defined by route of administration, and anaesthesia implies a deeper level of CNS depression than minimal sedation (anxiolysis). |
| 241704006 (Induction of sedation) | is related to | PZA.DC.AF (Intravenous anaesthesia) | ICHI does not have a generic sedation code; PZA.DC.AF is the closest available concept but is defined by intravenous route and implies general anaesthesia rather than the broader, route-agnostic concept of sedation induction. |
| 270391007 (Infectious disease notification) | is related to | UBC.VF.ZZ (Population alert) | Infectious disease notification (formal reporting of a notifiable disease to public health authorities) has no direct ICHI equivalent; "population alert" is the closest related concept, representing public health communication/warning, though the SNOMED concept focuses on the administrative reporting obligation rather than the downstream alert action. |
| 313009008 (Informing next of kin of diagnosis) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI has no code for communicating diagnostic information specifically to a next of kin; PZB.ZZ.ZZ represents an unspecified health management encounter and is only distantly related — no closer match exists in the classification for this type of disclosure activity. |
| 313010003 (Informing next of kin of prognosis) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | As with informing next of kin of diagnosis, ICHI lacks a specific code for prognostic disclosure to family; PZB.ZZ.ZZ is the closest residual health management encounter code but the match is only tangentially related. |
| 310867007 (Informing patient of diagnosis) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI does not have a dedicated code for diagnostic disclosure to a patient; PZB.ZZ.ZZ is the closest available residual code, but it is a broad catch-all and not a precise match for communicating a diagnosis. |
| 385753001 (Infusion care management) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | "Infusion care management" is a nursing intervention encompassing the overall coordination and management of IV infusion therapy; ICHI has no specific code for this, and PZB.ZY.ZY as a residual health management encounter category is the nearest structural fit, though it is only loosely related in meaning. |
| 1366004 (Inhalation therapy procedure) | is related to | JTB.ZY.ZY (Other interventions on respiration function, not elsewhere classified) | ICHI lacks a dedicated code for inhalation therapy (e.g., nebulised or inhaled drug delivery as a standalone procedure). JTB.ZY.ZY is a residual catch-all for respiration function interventions not classified elsewhere, making it the closest available code by related clinical domain, but it is not semantically equivalent. |
| 69399002 (Initial hospital visit by physician) | is related to | PZB.AA.ZZ (General health assessment) | The SNOMED concept describes an administrative encounter type (first inpatient/hospital visit by a physician), which ICHI does not model as an encounter category; PZB.AA.ZZ (General health assessment) captures the clinical activity most likely performed during such a visit, but the concepts are not directly equivalent. |
| 370832005 (Initiation of traffic control) | is related to | VCA.TK.ZZ (Public facilities or infrastructure development in relation to road safety behaviours) | ICHI contains no specific code for initiating traffic control measures. VCA.TK.ZZ covers public infrastructure development for road safety, which is conceptually related to implementing traffic control, but the ICHI code is oriented toward population-level infrastructure rather than the operational act of initiating traffic management. |
| 116670002 (Injection into leg) | is related to | MRM.DB.AE (Injection into muscle of unspecified site) | ICHI has no code specifically for "injection into leg" as an anatomical region; the closest structural match is MRM.DB.AE (injection into muscle, unspecified site), but this specifies muscle tissue rather than the leg as a topographic location, and does not capture injections into other leg tissues (subcutaneous, joint, vessel). The match is related but semantically imprecise. |
| 279589005 (Injection of anesthetic agent into sympathetic nerve for analgesia) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | ICHI has site-specific anaesthetic injection codes for cervical, thoracic, lumbar, and sacral sympathetic nerves, but no single code for an unspecified sympathetic injection; ADA.ZZ.ZZ is the only unspecified sympathetic system code but it covers all interventions rather than injection specifically, making it a related but imprecise match. |
| 736673002 (Injection of autologous blood into plantar fascia) | is related to | MOL.FA.AA (Incision of ligament or fascia of foot or toe) | ICHI has a block for interventions on ligament or fascia of foot or toe (MOL) but contains no injection code within it; the closest codes in MOL are incision and excision rather than injection, and no ICHI code exists that combines injection action with plantar fascia target. |
| 404909007 (Injection of botulinum toxin) | is related to | MRM.DB.AE (Injection into muscle of unspecified site) | There is no ICHI code encoding botulinum toxin injection specifically. Botulinum toxin is most commonly administered by intramuscular injection, making MRM.DB.AE a related approximate target, but the SNOMED concept specifies neither a site nor the route as exclusively intramuscular, and the ICHI code does not encode the substance at all. |
| 1208953001 (Injection of caustic into neoplasm) | is related to | PZA.DB.AE (Administering pharmacotherapy, percutaneous) | ICHI has no code for injecting a caustic/destructive agent specifically into a neoplasm; the closest concept captures percutaneous pharmacotherapy delivery, which overlaps with this technique but does not encode the destructive-agent intent or the neoplasm target. The single anatomy-specific code for destructive agent injection (ABG.GA.AE) is limited to the spinal canal and is not applicable here. |
| 449364006 (Injection of electrolyte) | is related to | PZA.DA.AF (Intravenous administration of nutritional substance) | ICHI has no dedicated code for electrolyte injection; the closest available code covers intravenous administration of nutritional substances (which includes electrolyte solutions given IV), but it is route-specific (intravenous) and uses "nutritional substance" rather than "electrolyte," making it only a related approximation rather than a true equivalent. |
| 449356000 (Injection of growth factor) | is related to | DTB.DB.AE (Percutaneous administration of immunological agent) | ICHI contains no code specifically for growth factor administration; the closest structural analogue is percutaneous administration of an immunological or biological agent, but growth factors (e.g., G-CSF, EPO) are not strictly immunological agents, making this a related-but-inexact match rather than a true equivalent. |
| 265757007 (Injection of radiocontrast material) | is related to | PZA.DB.AE (Administering pharmacotherapy, percutaneous) | ICHI has no dedicated code for injection of radiocontrast/contrast medium as a standalone act; contrast injections in ICHI appear only as part of specific imaging codes. PZA.DB.AE covers percutaneous administration of a pharmacological substance to the whole body and is the closest structural analog, but it is a generic pharmacotherapy code that does not capture the diagnostic/imaging purpose of radiocontrast injection. |
| 443029003 (Injection of sentinel lymph node using ultrasound guidance) | is related to | DFA.BA.BJ (Ultrasound of lymph node, not otherwise classified) | ICHI has no code for sentinel lymph node injection (radiotracer or dye) with ultrasound guidance; DFA.BA.BJ is the closest related code but captures only the imaging/guidance component and not the injection act, making this a related but not equivalent match. |
| 144711000146107 (Injection of sterile water) | is related to | PZA.DB.AE (Administering pharmacotherapy, percutaneous) | No ICHI code captures injection of sterile water as such — ICHI organises by anatomical target rather than substance, and sterile water is not pharmacotherapy; PZA.DB.AE is the closest general percutaneous substance administration code when no target site is specified, but the match is approximate given the substance mismatch. |
| 296778005 (Injection of steroid) | is related to | PZA.DB.AE (Administering pharmacotherapy, percutaneous) | ICHI does not have a steroid-specific injection code; it classifies injections by anatomical target rather than substance. PZA.DB.AE represents percutaneous administration of pharmacotherapy at an unspecified site, which is the closest general match when the SNOMED concept specifies only the substance (steroid) with no target anatomy. |
| 89575006 (Injection of sympathetic ganglion) | is related to | ADB.DC.AE (Injection of anaesthetic into cervical sympathetic nerve) | ICHI codes for sympathetic nervous system injections are all site-specific (cervical, thoracic, lumbar, sacral) and all specify anaesthetic as the agent, whereas the SNOMED concept covers injection into any sympathetic ganglion with any substance; no ICHI code for a generic sympathetic ganglion injection exists, making this only a related match. |
| 745600007 (Injection of thrombin) | is related to | DTA.DB.AE (Injection of anticoagulant) | No ICHI code for thrombin injection exists; DTA.DB.AE covers injection of anticoagulants, which are the pharmacological opposite of thrombin (a procoagulant/haemostatic agent), so while both are substance-specific haematological injections the substances act on opposite ends of coagulation, making this only a related-concept match. |
| 473222009 (Injection of thrombin for femoral artery pseudoaneurysm using imaging guidance) | is related to | IFA.LA.AF (Endovascular embolisation or occlusion of artery of lower limb) | Ultrasound-guided thrombin injection for femoral pseudoaneurysm is a percutaneous (not endovascular) procedure that induces thrombosis within the false aneurysm sac using a procoagulant; IFA.LA.AF covers endovascular embolisation/occlusion of a lower limb artery, which shares the functional goal of arterial occlusion at the femoral level but differs in approach and mechanism, making this only a related match. |
| 449673005 (Injection of upper limb) | is related to | LZZ.DB.AE (Injection into skin and subcutaneous cell tissue, not elsewhere classified) | ICHI has no generic "injection of upper limb" code; specific upper limb injections are coded by tissue type (joint, skin, nerve) but no single code covers the full anatomical region. LZZ.DB.AE is the residual skin/subcutaneous injection NEC code and captures the most common route but does not represent injection into deeper upper limb structures (muscle, joint, vessel), making it a related but not equivalent match. |
| 432235002 (Injection using ultrasound guidance) | is related to | XG8MR0 (Ultrasonograpphy guided) | ICHI does not have a generic "injection under ultrasound guidance" category code; XG8MR0 is an extension code in the means axis that captures the ultrasound-guidance aspect but cannot stand alone as an assignable intervention without a primary target+action pair, so it is a related rather than equivalent reference. |
| 285434006 (Insertion of abortifacient suppository) | is related to | NME.DB.AC (Termination of pregnancy by oral medication) | Both describe pharmacological termination of pregnancy, but SNOMED specifies a vaginal suppository route while NME.DB.AC specifies the oral route; no ICHI code exists for vaginal suppository administration of an abortifacient. |
| 700071009 (Insertion of anal seton) | is related to | KBX.FA.AA (Incision of anus and perianal tissue) | A seton is a thread or drain passed through an anal fistula tract, requiring incision of the anus or perianal tissue; KBX.FA.AA captures the anatomical action but not the device-insertion nature of seton placement, and ICHI has no dedicated seton code. |
| 390781007 (Insertion of auditory implant to brainstem) | is related to | AAG.DN.AA (Implantation of device into intracranial space) | The auditory brainstem implant is placed on the cochlear nucleus of the brainstem (an intracranial target), and AAG.DN.AA captures the implantation action, but ICHI has no dedicated code for the brainstem cochlear nucleus and the auditory function aspect is not captured. |
| 91404008 (Insertion of bone growth stimulator) | is related to | MDB.DN.AH (Noninvasive placement of bone growth stimulator in bone of shoulder region) | The only fully assignable bone growth stimulator code in ICHI is restricted to the shoulder region and noninvasive approach, while the SNOMED concept is body-site-agnostic and covers both invasive and noninvasive methods; no site-independent code exists. |
| 444328007 (Insertion of catheter into artery using cutdown procedure) | is related to | IZA.FA.AA (Incision of artery, not elsewhere classified) | A cutdown is fundamentally an open incision of the artery to gain access, which IZA.FA.AA captures, but the ICHI code does not encode the subsequent catheter insertion step; no single ICHI code encodes arterial cutdown with catheterisation as a combined act. |
| 442880006 (Insertion of catheter with venous sampling) | is related to | DIA.AH.XA (Specimen collection of blood) | The SNOMED concept describes a combined procedure (catheter placement into a vein for venous sampling), while DIA.AH.XA captures only the specimen-collection outcome without encoding the catheter insertion or venous route; no single ICHI code encodes this compound act. |
| 234841003 (Insertion of cleft lip or palate strapping appliance) | is related to | KAA.LC.AA (Fixation of lip) | No ICHI code exists for a cleft lip/palate strapping appliance; KAA.LC.AA is the closest anatomical match (both involve applying an external restraining device to the lip) but does not capture the palate component, the strapping appliance type, or the presurgical cleft-management purpose. |
| 1263798008 (Insertion of custom soft interocclusal splint) | is related to | MAG.SM.AH (Management of external appliance of mandible) | ICHI has no specific code for interocclusal splint insertion; MAG.SM.AH is the closest available concept, but "management" is broader and functionally different from initial insertion/fitting of a custom splint. |
| 397982008 (Insertion of device into airway) | is related to | JZZ.DL.AC (Other intubation of respiratory tract, not elsewhere classified) | The SNOMED concept is a broad non-specific category covering any device inserted into any part of the airway, while JZZ.DL.AC is a residual respiratory tract intubation code; ICHI's code is scoped to intubation/tubing specifically, whereas SNOMED encompasses all device types across the full airway. |
| 429585000 (Insertion of hearing implant in external ear) | is related to | CZZ.ZY.ZY (Other specified interventions on the ear or mastoid) | The external ear block in ICHI (CAA, CAC, CAE) contains no device implantation or insertion codes — only excision, reconstruction, drainage and similar procedures — so no specific ICHI category captures insertion of a hearing implant into the external ear. The chapter-level residual is the only available anchor within the correct anatomical chapter, making this a broad relatedto mapping. |
| 234814008 (Insertion of intraoral appliance) | is related to | KAE.LC.AC (Application of dental device) | KAE.LC.AC is the closest ICHI code, covering application of a dental device (e.g., a brace or splint to teeth), but intraoral appliances encompass a wider set including non-dental devices such as mandibular advancement devices or palatal plates, so the match is related but not directly equivalent. |
| 737001009 (Insertion of male retropubic continence sling device) | is related to | NAK.LC.AA (Suspension procedures on bladder neck) | NAK.LC.AA covers suspension procedures on the bladder neck, which is the functional goal of a male retropubic continence sling, but the ICHI code does not capture the specific anatomy (urethra vs. bladder neck), the retropubic approach, the male sex, or the device-based (sling) technique, making this a related rather than equivalent match. |
| 55963009 (Insertion of metal staples into epiphyseal plate) | is related to | MLB.LE.AA (Epiphysiodesis of femur) | ICHI encodes epiphysiodesis (growth plate arrest) only as site-specific codes (femur; tibia/fibula); there is no general or unspecified epiphyseal plate code. The femur is the most common site for this procedure, but the SNOMED concept specifies neither a body site nor the staple technique explicitly captured by ICHI's LE action, making this a related-but-not-equivalent mapping. |
| 25261001 (Insertion of nasal septal prosthesis) | is related to | JAB.ML.AC (Septoplasty) | The nasal septum block contains no ICHI code for prosthesis or device insertion into the nasal septum; the closest intervention is septoplasty, which is a reconstructive procedure on the septum but does not semantically capture the insertion of a septal prosthesis (e.g., a septal button or obturator). The match is related but not a good semantic equivalent. |
| 439935005 (Insertion of nonbiodegradable drug delivery device) | is related to | LZZ.DL.AE (Percutaneous insertion of device into skin and subcutaneous cell tissue, not elsewhere classified) | ICHI has no specific code for a drug delivery implant; LZZ.DL.AE represents percutaneous device insertion into skin/subcutaneous tissue NEC, which is the closest structural match for a subcutaneously implanted drug delivery device, but does not capture the pharmacological delivery function or the nonbiodegradable nature of the device. |
| 11012000 (Insertion of skeletal muscle stimulator) | is related to | MU2.SC.BP (Electrical stimulation of muscle functions, not elsewhere classified) | ICHI's MU2.SC.BP describes electrical stimulation of muscle functions (a functional/rehabilitative code), whereas the SNOMED concept specifically denotes surgical insertion of an implanted stimulator device into skeletal muscle. |
| 1255896000 (Insertion of spacer into tendon sheath) | is related to | MGT.DN.AA (Implantation of device into tendon of hand or finger) | ICHI contains "Implantation of device into tendon of hand or finger", which captures the same procedural concept (device insertion into tendon) but is restricted to a specific anatomical site. No site-unspecified tendon device implantation code exists in ICHI. |
| 77171007 (Insertion of testicular prosthesis) | is related to | NGL.ML.AA (Testicular graft) | The NGL (testis) block contains no code for prosthesis implantation; the closest available code is testicular graft, which involves a biological graft rather than a synthetic prosthesis. The target organ matches but the action and means are semantically distinct. |
| 441696008 (Insertion of transobturator tape for male urinary incontinence) | is related to | NAK.LC.AA (Suspension procedures on bladder neck) | A male transobturator tape sling is a urethral/bladder-neck suspension procedure, and NAK.LC.AA covers suspension procedures on the bladder neck; however, ICHI does not have a dedicated code for suburethral sling/tape placement nor distinguish the transobturator approach. |
| 309731008 (Insufflation of eustachian tube to examine patency) | is related to | CBH.LG.AC (Dilatation of eustachian tube) | ICHI has no specific code for eustachian tube insufflation as a patency test; CBH.LG.AC is the closest code in the eustachian tube interventions block, as insufflation involves forcing air through the tube to dilate/open it. The SNOMED concept is diagnostic in intent while ICHI's dilatation code implies a therapeutic purpose, making this related-to rather than equivalent. |
| 287944003 (Insufflation of fallopian tube using gas) | is related to | NMC.LG.AA (Dilatation of fallopian tube) | Fallopian tube insufflation with gas (a pertubation/hydrotubation variant) forces gas through the tube to assess patency or clear obstruction, which is functionally similar to dilatation; NMC.LG.AA is the closest code in the fallopian tube block. The means axis (gas vs. mechanical dilation) and intent (diagnostic/therapeutic) differ, so this is a related-to mapping. |
| 287943009 (Insufflation of fallopian tube using saline) | is related to | NMC.LG.AA (Dilatation of fallopian tube) | Saline insufflation (hydrotubation) of the fallopian tube is functionally comparable to dilatation; NMC.LG.AA is the best available code in the fallopian tube interventions block. The specific means (saline flush) and diagnostic/therapeutic intent are not captured in the ICHI code, making this relatedto rather than equivalent. |
| 1217036000 (Insufflation of fallopian tube with injection of drug or medicament) | is related to | NMC.LG.AA (Dilatation of fallopian tube) | This procedure involves both insufflation and drug delivery into the fallopian tube; ICHI has no injection-into-fallopian-tube code and no drug-specific insufflation code. NMC.LG.AA remains the closest structural match, but the therapeutic intent (drug delivery via insufflation) and medicament aspect are unrepresented, warranting a relatedto equivalence. |
| 385794009 (Insulin administration management) | is related to | ETK.PP.ZZ (Counselling for endocrine gland functions) | ICHI has no code specifically for insulin administration management as a care process. ETK.PP.ZZ (counselling for endocrine gland functions) is the closest available code in the endocrine gland functions block, but it captures only the counselling/self-management support dimension rather than the full scope of insulin administration management, which includes dosing, timing, and monitoring. |
| 385749003 (Intake and output measurement education) | is related to | SMG.PM.ZZ (Education about drinking) | ICHI codes education about the activity of "drinking" (fluid intake) under the self-care domain, which is the closest available concept; however, ICHI does not have a dedicated code for education about intake-and-output measurement as a clinical monitoring activity, and the ICHI code focuses narrowly on the drinking activity rather than the measurement/monitoring aspect or output side. |
| 385750003 (Intake and output measurement management) | is related to | SMG.AB.ZZ (Measurement of fluid intake) | ICHI has a specific code for measurement of fluid intake (SMG.AB.ZZ) within the self-care/activities domain, which captures part of the concept; however, the SNOMED concept encompasses both intake and output measurement as an integrated clinical management activity, while ICHI covers only the intake measurement side and has no output measurement equivalent. |
| 405794005 (Intensive mental health care) | is related to | AS1.PQ.ZZ (Psychotherapy for mental functions, unspecified) | ICHI contains no concept for intensity-of-care level (e.g., intensive vs. standard mental health care); AS1.PQ.ZZ represents psychotherapy targeting unspecified mental functions, which is the closest therapeutic action in the mental functions block, but it does not capture the "intensive care" setting dimension of the SNOMED concept, making this a related-but-non-equivalent mapping. |
| 12418009 (Intermediate transfer of pedicle flap) | is related to | XG9JE8 (Pedicle flap) | XG9JE8 is an extension/supplementary code classifying the pedicle flap as a tissue type rather than encoding the procedural act of transferring it; ICHI has no standalone category code representing the surgical procedure of pedicle flap transfer. The code is related but does not capture the act (transfer) or the stage (intermediate). |
| 288039005 (Internal cephalic version and extraction) | is related to | NMR.LD.AH (External version of fetus) | ICHI has a code for external version of fetus (NMR.LD.AH) and a separate rotation of fetus code (NMR.LD.AC), but no specific code for internal cephalic version and extraction, which is a manual intrauterine maneuver for malpresentation of a second twin. NMR.LD.AH is the closest structurally related code but refers to the external approach. |
| 1255825005 (International Dysphagia Diet Standardisation Initiative Framework - Pureed Level 4 food) | is related to | UAB.DA.ZZ (Food modification) | ICHI has no dysphagia diet or modified-texture food code; UAB.DA.ZZ "Food modification" (interventions on food as an environmental product) is the closest conceptual match, but it represents a population/environmental action on food rather than a clinical dietary standard for a patient with dysphagia. The SNOMED concept describes a specific IDDSI food texture level, which is more specific and clinically oriented than ICHI's general food modification category. |
| 235305000 (Interposition of small intestine) | is related to | KBK.MK.AA (Repair of small intestine, not elsewhere classified) | ICHI has no dedicated "interposition" code for small intestine; the closest action in the small intestine block is repair (MK), but interposition is a reconstructive use of a bowel segment as a conduit — semantically distinct from repair. The oesophageal reconstruction code (KBA.ML.AA) could alternatively represent the procedure from the recipient organ's perspective, but SNOMED frames it from the intestinal graft perspective, making this a related-but-imprecise match. |
| 414527008 (Interposition procedure of large intestine) | is related to | KBZ.MK.AA (Repair of large intestine, not elsewhere classified) | As with small intestine interposition, ICHI contains no specific code for large intestine interposition (colon interposition); the only applicable action in the KBZ block is repair (MK.AA), which is not semantically equivalent to using a colon segment as an interposed conduit replacing a resected organ. A broader match to the oesophageal reconstruction code KBA.ML.AA could also be considered depending on mapping perspective. |
| 304461003 (Interrupted direct current to trunk) | is related to | MU2.SC.BP (Electrical stimulation of muscle functions, not elsewhere classified) | ICHI does not have a code specific to interrupted direct current (a pulsed/interrupted DC electrotherapy modality), nor one targeting the trunk specifically. MU2.SC.BP covers electrical stimulation of muscle functions as a residual category and is the closest structural match, but it is body-site agnostic and does not capture the specific current waveform (interrupted DC) or trunk body region. |
| 304458004 (Interrupted direct current to upper limb) | is related to | MU2.SC.BP (Electrical stimulation of muscle functions, not elsewhere classified) | As with the trunk variant, ICHI has no code for interrupted direct current nor for upper-limb-specific electrotherapy; MU2.SC.BP is the closest available match for electrical stimulation applied to muscles, but it lacks both the waveform specificity (interrupted DC) and the anatomical qualifier (upper limb). |
| 42775008 (Intersex surgery, female to male) | is related to | NGM.MA.AA (Construction of penis) | ICHI has no dedicated code for intersex or gender-affirming surgery as a whole procedure. The female-to-male surgical pathway is primarily characterised by phalloplasty/construction of a penis, making NGM.MA.AA the closest single ICHI code; however, it captures only one component of a multi-step surgical process that also includes other procedures (e.g., gonadectomy, hysterectomy, urethral reconstruction), so the match is approximate rather than equivalent. |
| 51427007 (Intersex surgery, male to female) | is related to | NMI.MA.AA (Construction of external female genitalia) | ICHI has no dedicated intersex/gender-affirming surgery code; the male-to-female pathway is principally characterised by construction of external female genitalia (vaginoplasty/vulvoplasty), making NMI.MA.AA the closest single code, but like the FtM mapping it represents only part of a multi-component surgical process. |
| 169366003 (Interstitial brachytherapy to head and/or neck using temporary implant) | is related to | LAA.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue of head or neck by radiotherapy) | ICHI does not have a code specifically for interstitial brachytherapy or temporary implant radiotherapy; the only head-and-neck radiotherapy code (LAA.GA.BA) covers destruction by radiotherapy at that anatomical site but targets skin/subcutaneous tissue rather than deep tumour volumes and does not distinguish the brachytherapy delivery technique (interstitial implant vs. external beam), making this an approximate topographic match only. |
| 169371005 (Interstitial brachytherapy to limb using temporary implant) | is related to | LZZ.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue by radiotherapy, not elsewhere classified) | ICHI's limb radiotherapy codes (LAE.GA.BA, LAG.GA.BA) are restricted to skin and subcutaneous tissue of specific limbs, not generalised limb brachytherapy to deeper structures; the residual LZZ.GA.BA is the closest non-site-specific option, but none of the available codes captures the interstitial technique or the full anatomical scope of "limb" as a treatment region. |
| 169372003 (Interstitial brachytherapy to lymphoreticular system using temporary implant) | is related to | DFA.GA.BA (Destruction of lesion or tissue of other and unspecified lymph node by radiotherapy) | DFA.GA.BA is the closest available code, covering radiotherapy destruction of unspecified lymph nodes, but the SNOMED concept targets the broader lymphoreticular system (including spleen, thymus, and bone marrow), and ICHI does not distinguish brachytherapy technique from external radiotherapy in this code. |
| 31652009 (Intracavitary chemotherapy for malignant neoplasm) | is related to | KMA.DB.AE (Injection into peritoneum and peritoneal cavity) | ICHI lacks a dedicated intracavitary chemotherapy code; KMA.DB.AE covers injection into the peritoneal cavity (one of the most common intracavitary routes), but the SNOMED concept spans multiple body cavities (pleural, pericardial, peritoneal, intrathecal, bladder) and specifies antineoplastic intent which ICHI does not capture. |
| 176844003 (Intracervical artificial insemination) | is related to | NME.DH.AC (Uterine reproductive transfer procedures) | ICHI has no specific code for intracervical insemination; NME.DH.AC is the closest available code covering uterine-level reproductive transfer procedures, but intracervical insemination targets the cervical canal rather than the uterine cavity, and the ICHI code is semantically broader. |
| 230955002 (Intracranial destruction of ganglion) | is related to | AAN.GA.AA (Destruction of cranial nerve) | There is no specific ICHI code for destruction of an intracranial ganglion; AAN.GA.AA is the closest code within the cranial nerve block (which encompasses cranial nerve ganglia), but the target is a ganglion rather than a nerve trunk proper, making this a related rather than equivalent match. |
| 307547004 (Intracranial subdural shunt operation) | is related to | AAG.JB.AA (Drainage of intracranial space) | ICHI has no specific code for a subdural shunt; the nearest available code is AAG.JB.AA (drainage of intracranial space), which covers the same anatomical compartment and the drainage/diversion intent, but "drainage" does not fully capture the permanent shunt conduit created in the SNOMED concept. |
| 236841000 (Intradermal steroid injection of vulva) | is related to | NMI.GA.AA (Destruction of vulva) | ICHI has no injection code for the vulva — the vulva block (NMI) contains no DB (administration of agent/injection) action code. The concept is related to vulva interventions but the action (injection of steroid) and the ICHI action (destruction) are semantically distinct. |
| 449255003 (Intraluminal brachytherapy of tracheobronchial tree) | is related to | JBB.GA.AD (Endoscopic destruction of lesion or tissue of bronchus) | ICHI has no dedicated brachytherapy code for the tracheobronchial tree; JBB.GA.AD captures the endoluminal route and the destructive intent but does not encode the radiation modality (brachytherapy) or the tracheal component of the target. |
| 241707004 (Intramuscular sedation) | is related to | MRM.DB.AE (Injection into muscle of unspecified site) | ICHI has no code for sedation administered by the intramuscular route; the closest code captures injection into muscle generically (MRM.DB.AE) but does not encode the pharmacological intent (sedation/anxiolysis) as a distinct action. |
| 233568002 (Intraoperative blood salvage) | is related to | DIA.JH.AF (Collection of blood or blood products) | ICHI has no specific code for intraoperative cell salvage (autologous blood recovery and reinfusion). DIA.JH.AF captures the collection/salvage step but omits the reinfusion component and the intraoperative context; the procedure as a whole has no single ICHI equivalent. |
| 386334004 (Intraoperative infection control) | is related to | UEP.VE.ZZ (Health care infection control measures concerning health services, systems and policies) | ICHI does not have a specific code for intraoperative (surgical field) infection control such as sterile technique or surgical asepsis. UEP.VE.ZZ addresses infection control measures at the health-services/systems level rather than a specific clinical intraoperative action. |
| 252797001 (Intraoperative motor nerve stimulation) | is related to | AAN.SC.BP (Stimulation of cranial nerve) | ICHI has no single code for intraoperative motor nerve stimulation (neuromonitoring) as a class — the closest codes are therapeutic/diagnostic stimulation codes for specific nerve targets rather than the general intraoperative monitoring procedure. |
| 252796005 (Intraoperative sensory nerve stimulation) | is related to | AVC.AF.BP (Somatosensory evoked potentials) | Intraoperative sensory nerve stimulation is functionally the elicitation of somatosensory evoked potentials (SSEPs) used for neuromonitoring, which aligns with AVC.AF.BP; however, the ICHI code describes the measurement/assessment result rather than the stimulation act itself. |
| 309877008 (Intrapartum cardiotochogram monitoring) | is related to | NMR.AI.AC (Internal fetal monitoring) | NMR.AI.AC covers internal fetal monitoring, which is related to intrapartum cardiotocography but is not semantically equivalent — CTG typically refers to external electronic fetal heart rate and uterine contraction monitoring, while internal fetal monitoring in ICHI refers to direct internal methods. |
| 281800008 (Intravenous fluid replacement) | is related to | PZA.DA.AF (Intravenous administration of nutritional substance) | ICHI has no dedicated IV fluid replacement or rehydration code; the closest available code covers intravenous administration of nutritional substance, which shares the IV route but is scoped to nutritional agents rather than fluid/electrolyte replacement specifically. |
| 14152002 (Intravenous infusion) | is related to | PZA.DB.AF (Administering pharmacotherapy, percutaneous transluminal) | ICHI does not have a generic intravenous infusion code; PZA.DB.AF (pharmacotherapy by IV route at whole-body level) is the closest structural analogue, but it is scoped to pharmacotherapy delivery rather than infusion in general. |
| 235424003 (Intubation of gastrointestinal tract via mouth) | is related to | KBF.DL.AC (Insertion of device into stomach) | Oral intubation of the GI tract most commonly targets the stomach (orogastric tube), making KBF.DL.AC the closest single ICHI code, but the SNOMED concept is broader — covering any GI segment reached via the mouth — and ICHI does not have a code for the GI tract as a whole. |
| 235427005 (Intubation of gastrointestinal tract via stoma) | is related to | KBK.DL.AC (Per orifice insertion of device of small intestine, not elsewhere classified) | ICHI has no concept for GI tract intubation via stoma as a whole; the closest is per-orifice (natural or artificial opening) insertion of a device into the small intestine, but this is scoped to small intestine only and does not fully capture stoma-approach specificity across the entire GI tract. |
| 445775002 (Intubation of nasolacrimal duct) | is related to | BAD.FA.AA (Incision of lacrimal apparatus) | ICHI does not have a dedicated code for intubation or tube insertion into the nasolacrimal duct; the lacrimal apparatus block (BAD) contains irrigation, drainage, occlusion, and repair codes but no device insertion code. BAD.FA.AA is the closest related procedure in the same anatomical block. |
| 225329001 (Involving family and friends in care) | is related to | UCB.TD.ZZ (Collaboration relating to support from immediate family) | UCB.TD.ZZ captures collaborative engagement with the immediate family, the closest ICHI concept to involving family members in a patient's care; however it is narrower (immediate family only, excludes friends) and frames the intervention as collaboration around family support. |
| 228700000 (Iodine 131 meta-iodobenzylguanidine therapy) | is related to | EBA.GA.BE (Destruction of thyroid gland, using radioactive iodine) | EBA.GA.BE is the only ICHI code for radioactive iodine therapy, but it is explicitly scoped to destruction of the thyroid gland with I-131 iodide, whereas MIBG therapy uses I-131 labelled MIBG to target adrenergic tumours such as neuroblastoma and phaeochromocytoma, not the thyroid. |
| 7338001 (Ipecac emesis administration and observation) | is related to | KBF.JA.AC (Gastric lavage) | No ICHI code exists for ipecac-induced emesis or emetic drug administration; gastric lavage shares the clinical purpose of gastric decontamination but is mechanically distinct (irrigation via tube vs pharmacologically induced vomiting). |
| 391112007 (Ipratropium reversibility) | is related to | JBB.AC.AC (Bronchial provocation test) | Ipratropium reversibility is a bronchodilator response test (spirometry before and after inhaled ipratropium); JBB.AC.AC is the closest ICHI code for a pharmacological bronchial challenge, but it typically implies bronchoconstriction provocation rather than bronchodilator response. |
| 427282009 (Irrigation of pharynx) | is related to | KAR.JB.AA (Drainage of oral pharynx) | ICHI has no irrigation code for the pharynx; drainage of oral pharynx is the closest related procedure, but drainage/suctioning is a different action from irrigation, and only oral pharynx is covered. |
| 289918007 (Irrigation of renal pelvis and ureter) | is related to | NAB.JB.AA (Drainage of renal pelvis) | ICHI has no dedicated irrigation/lavage code for the renal pelvis or ureter; drainage is the closest available action, but the SNOMED concept additionally includes the ureter and specifies irrigation rather than drainage. |
| 13918006 (Irrigation of tendon) | is related to | MRT.JB.AA (Drainage of tendon of unspecified site) | ICHI has no dedicated irrigation or lavage code for tendons; drainage of tendon shares the clinical goal of clearing infection or debris but is a distinct procedural technique. |
| 169159009 (Isotope dynamic scanning) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | "Isotope dynamic scanning" involves sequential radioisotope imaging to assess physiological dynamics; PZA.BA.BE is the closest ICHI code covering whole-body radioisotope imaging but does not specifically encode the dynamic/sequential acquisition aspect. |
| 426417003 (IVF - In vitro fertilization with pre-implantation genetic diagnosis) | is related to | NME.DH.AC (Uterine reproductive transfer procedures) | ICHI has no code that captures IVF with pre-implantation genetic diagnosis as a combined procedure; NME.DH.AC covers the embryo transfer component but omits IVF, oocyte retrieval, fertilization, and genetic testing dimensions. |
| 229230000 (Joint control work) | is related to | MTC.PH.ZZ (Training for stability of joint functions) | "Joint control work" is a rehabilitation concept focused on neuromuscular control and coordination of joints; stability training is one component but the SNOMED term encompasses broader movement control not fully captured. |
| 225929007 (Joint home visit) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI does not encode care setting (home vs. clinic) as a classifiable dimension; the closest residual code is a generic health management encounter, which captures the encounter nature but not the home-based or multidisciplinary character. |
| 226035000 (Key points of control) | is related to | UAB.VC.ZZ (Public health surveillance concerning food safety and security) | "Key points of control" (HACCP critical control points) refers to systematic identification of control points to prevent food safety hazards; UAB.VC.ZZ is the closest thematic ICHI concept but represents surveillance rather than the specific HACCP methodology. |
| 174457002 (Laparoscopic removal of calculus from liver) | is related to | KCA.JD.AA (Removal of internal device or foreign body from liver) | ICHI has no dedicated extraction-of-calculus-from-liver code; KCA.JD.AA covers removal of foreign material from the liver but is scoped to devices/foreign bodies and lacks the laparoscopic means axis. |
| 16020002 (Laryngeal function studies) | is related to | JUB.AC.ZZ (Test of voice functions) | ICHI has no dedicated "laryngeal function studies" code; JUB.AC.ZZ is the closest functional assessment concept, as laryngeal function studies are predominantly performed to evaluate voice production and vocal fold physiology. |
| 450875004 (Laryngotracheal separation) | is related to | JAN.FA.AA (Incision of larynx) | Laryngotracheal separation surgically disconnects the larynx from the trachea (used to prevent aspiration), with no direct ICHI equivalent; JAN.FA.AA is the most structurally related code available but does not capture the tracheal division or purpose. |
| 307922009 (Laser assisted uvulopalatopharyngoplasty) | is related to | KAS.ML.AA (Reconstruction of soft palate) | UPPP involves resection and reshaping of soft palate, uvula, and oropharynx; ICHI has no combined UPPP code, and KAS.ML.AA captures the dominant reconstructive component but omits the pharyngeal and uvular dimensions. |
| 1363169001 (Laser peripheral iridoplasty of left eye) | is related to | BBC.GA.AH (Destruction of lesion of iris) | ICHI contains no code for iridoplasty (laser contraction/reshaping of the iris periphery); BBC.GA.AH is the closest available code on the iris, but iridoplasty acts on normal iris tissue rather than destroying a lesion. |
| 1363170000 (Laser peripheral iridoplasty of right eye) | is related to | BBC.GA.AH (Destruction of lesion of iris) | Same reasoning as the left-eye concept — ICHI has no iridoplasty code; BBC.GA.AH is the closest structural match on the iris but is conceptually inexact, and the laterality and laser means are not captured. |
| 230932000 (Laser recanalization of intracranial vessel) | is related to | IAA.JE.AF (Endovascular extraction of obstruction from intracranial artery) | Laser recanalization achieves obstruction removal via a different mechanism (laser energy) than mechanical extraction, and the target is "vessel" (artery or vein) whereas IAA.JE.AF is artery only; no ICHI code encodes laser-based vascular recanalization. |
| 27641001 (Lateral fasciotomy with partial ostectomy of upper extremity) | is related to | MEL.FB.AA (Division of ligament or fascia of elbow) | No single ICHI code represents the combination of fasciotomy and partial ostectomy of the upper extremity; MEL.FB.AA covers the fasciotomy component but omits the partial ostectomy. |
| 426334005 (Lavage of bone) | is related to | MRB.JG.AA (Debridement of bone of unspecified site) | ICHI contains no "irrigation" or "lavage" code for bone specifically; debridement of bone (unspecified site) is a related cleansing/clearing intervention but does not semantically equal lavage (fluid wash-through). |
| 1362130004 (Lavage of pleural cavity) | is related to | JCB.JB.AA (Drainage of pleural cavity) | ICHI has no distinct lavage or irrigation code for the pleural cavity; the children of the pleural cavity block are limited to drainage codes, making drainage of pleural cavity the closest procedural relative though semantically distinct from lavage. |
| 302243009 (Humanistic and integrative therapy) | is related to | PZB.PQ.ZZ (Psychotherapy for the whole person, not elsewhere classified) | Humanistic and integrative therapy is a family of person-centred psychotherapeutic approaches; ICHI does not enumerate specific psychotherapy modalities, and PZB.PQ.ZZ is a residual NEC category that does not explicitly encode humanistic/integrative orientation. |
| 28523002 (Hydrocelectomy of processus vaginalis) | is related to | NGL.LA.AE (Ligation of patent processus vaginalis) | Hydrocelectomy involves excision/surgical obliteration of the patent processus vaginalis; NGL.LA.AE targets the same anatomical structure and clinical problem, but ligation and excision are different operative techniques. |
| 229207006 (Hydrotherapy class) | is related to | PZA.ZZ.BS (Hydrotherapy with full immersion, for therapeutic purposes) | ICHI hydrotherapy codes describe physical immersion modalities, not group education or class settings; PZA.ZZ.BS is the closest in therapeutic intent but does not capture the class/group format. |
| 229192001 (Hydrotherapy regime) | is related to | PZA.ZZ.BS (Hydrotherapy with full immersion, for therapeutic purposes) | A hydrotherapy regime is a planned course of hydrotherapy rather than a single session; no ICHI code addresses treatment planning or care regimes for hydrotherapy specifically. |
| 229204004 (Hydrotherapy relaxation) | is related to | PZA.ZZ.BS (Hydrotherapy with full immersion, for therapeutic purposes) | Hydrotherapy relaxation specifies a stress-reduction therapeutic goal absent from any ICHI code; PZA.ZZ.BS is the nearest hydrotherapy code but does not capture the relaxation-focused intent. |
| 185719002 (Hypertension monitoring first letter) | is related to | ITA.AA.ZZ (Assessment of blood pressure functions) | This SNOMED concept is an administrative act (sending a first reminder letter) with no counterpart in ICHI; ITA.AA.ZZ is the closest clinically related code via the underlying monitoring context. |
| 185720008 (Hypertension monitoring second letter) | is related to | ITA.AA.ZZ (Assessment of blood pressure functions) | This is an administrative patient-recall communication (a second reminder letter) with no ICHI equivalent; ITA.AA.ZZ is the closest clinically related code by virtue of the monitoring context. |
| 185723005 (Hypertension monitoring telephone invite) | is related to | VDB.VF.ZZ (Alert concerning screening behaviours) | A telephone invitation for hypertension monitoring is a patient outreach action; VDB.VF.ZZ aligns with alerting patients about screening behaviours but does not capture telephone modality or hypertension specificity. |
| 185721007 (Hypertension monitoring third letter) | is related to | VDB.VF.ZZ (Alert concerning screening behaviours) | A third follow-up letter inviting hypertension monitoring is a written patient recall; VDB.VF.ZZ is the closest alerting/screening code but captures neither the written modality nor the sequential nature. |
| 185722000 (Hypertension monitoring verbal invite) | is related to | VDB.VF.ZZ (Alert concerning screening behaviours) | A verbal invitation for hypertension monitoring is a patient recall/alert action; VDB.VF.ZZ is the closest available code but does not capture the verbal/opportunistic modality or hypertension scope. |
| 19997007 (Hypnotherapy) | is related to | PZB.PQ.ZZ (Psychotherapy for the whole person, not elsewhere classified) | Hypnotherapy is a psychological/mind-body therapeutic technique with no dedicated ICHI code; PZB.PQ.ZZ is the best available approximation though hypnotherapy is distinct from conventional psychotherapy. |
| 386328006 (Hypoglycemia management) | is related to | ETB.PM.ZZ (Education about general metabolic functions) | ICHI has no specific hypoglycemia management code; ETB.PM.ZZ is related but captures only the educational dimension of management, not the broader clinical management concept. |
| 118450008 (Layer closure procedure) | is related to | LZZ.MK.AA (Repair of skin and subcutaneous cell tissue, not elsewhere classified) | Layer closure is a multi-tissue technique-level concept (skin, subcutis, fascia, muscle); ICHI has no generic multi-layer closure code so the closest structural match is repair of skin and subcutaneous tissue NEC, but ICHI is confined to one tissue type and unspecified site. |
| 35833009 (Lead screening, blood) | is related to | DIA.AH.XA (Specimen collection of blood) | Blood lead screening involves specimen collection followed by laboratory analysis; ICHI encodes only the collection step and has no lead-specific screening or toxicology measurement code, so the mapping captures only part of the clinical procedure. |
| 84034006 (Lead screening, urine) | is related to | PZX.AH.XB (Specimen collection of urine) | Urine lead screening involves urine collection followed by lead-level analysis; ICHI only has a code for the collection act, with no urine toxicology or lead-specific screening code, so this represents only the specimen collection component. |
| 401333005 (Legal rehab. measures) | is related to | UEJ.RG.ZZ (Providing legal services, systems and policies) | "Legal rehabilitation measures" — formal legal processes to restore a person's civil/professional standing — most closely align with UEJ.RG.ZZ; the match is relatedto because ICHI frames this as a population/environment-level action while the SNOMED concept refers to an individual legal-status restoration measure. |
| 225411005 (Levels of observation) | is related to | PZB.TB.ZZ (Individualised planning) | "Levels of observation" is the clinical decision-making act of determining and assigning a patient observation level (e.g., constant/close/general); PZB.TB.ZZ captures this care-planning dimension but is broader and does not specifically reference observation-level assignment. |
| 712555000 (Liaising about dietary regime) | is related to | UAB.TD.ZZ (Collaborating or building partnerships in relation to food) | UAB.TD.ZZ captures food/dietary target and collaboration action, the closest structural match; ICHI's framing is oriented toward public-health partnerships rather than clinical case-level inter-professional liaising about an individual patient's dietary regime. |
| 712556004 (Liaising about pain management plan) | is related to | PZB.TD.ZZ (Case coordination) | Liaising about a pain management plan is inter-professional coordination around a specific aspect of care; PZB.TD.ZZ (case coordination) is structurally appropriate, but no pain-specific coordination code exists in ICHI and the chosen code does not capture the pain topic. |
| 1156703001 (Liaising with family on procurement of medication) | is related to | UAC.TD.ZZ (Collaboration relating to medications) | UAC.TD.ZZ captures the collaboration/coordination action applied to medications; ICHI does not express the "with family" participant dimension or the specific procurement aspect, so the match is approximate. |
| 173184003 (Ligation of bulla of lung) | is related to | JBF.LL.AA (Lung volume reduction surgery) | ICHI has no specific code for ligation or stapling of a pulmonary bulla; the closest available code is lung volume reduction surgery, which encompasses bullectomy-type procedures but is broader in scope and conceptually distinct (LVRS targets emphysema, not isolated bullae). No tighter match exists within the lung parenchyma interventions block. |
| 32202006 (Ligation of cisterna chyli) | is related to | DFP.LA.AA (Occlusion of thoracic duct) | ICHI has no specific code for the cisterna chyli; the entire "Interventions on thoracic duct" block covers the thoracic duct, of which the cisterna chyli is the inferior dilated origin. DFP.LA.AA (Occlusion of thoracic duct) is the closest procedural match — ligation is a form of occlusion — but the target anatomical site (cisterna chyli vs. thoracic duct proper) differs. |
| 67364009 (Ligation of esophageal varices) | is related to | KBA.LA.AD (Endoscopic occlusion of oesophagus) | ICHI contains no specific code for oesophageal variceal ligation or banding; KBA.LA.AD (Endoscopic occlusion of oesophagus) is the closest available code, capturing the endoscopic approach and occlusive action used in EVL, but it targets the oesophagus generically rather than the varices specifically. |
| 31256001 (Ligation of gastric ulcer) | is related to | KBF.LA.AD (Endoscopic control of gastric bleeding) | ICHI has no code for open surgical ligation or oversewing of a gastric ulcer; KBF.LA.AD is the closest available code addressing control of gastric bleeding, but it specifies an endoscopic approach while the SNOMED concept implies open surgical ligation, and the ICHI code does not encode the ulcer as the target lesion. |
| 440305003 (Ligation of peritoneal venous shunt) | is related to | KMA.JD.AA (Removal of internal device or foreign body from peritoneal cavity) | ICHI has no ligation-specific code for a peritoneal venous shunt (LeVeen/Denver shunt); the closest functional equivalent is removal of an internal device from the peritoneal cavity, which captures the end-result of taking a shunt out of service, though ligation differs mechanically from device removal. |
| 233221006 (Ligation of pulmonary arteriovenous malformation) | is related to | HID.LA.AA (Occlusion of pulmonary artery) | ICHI does not have a dedicated code for pulmonary AVM ligation or closure; "Occlusion of pulmonary artery" (HID.LA.AA) is the nearest structural match since a PAVM is a direct arteriovenous connection arising from the pulmonary artery, but the ICHI code targets the artery itself rather than an AVM lesion, making this a related rather than equivalent mapping. |
| 302351005 (Ligation of salivary duct) | is related to | KAM.FA.AA (Incision of salivary gland or duct) | ICHI has no ligation code for salivary duct; the salivary gland/duct block contains incision, drainage, dilatation, repair, and excision codes but no occlusion or ligation category. Incision of salivary gland or duct is the closest operative code, though it represents a different action than ligation/occlusion. |
| 302387003 (Ligation of skin lesion) | is related to | LZZ.LA.AA (Ligation of dermal appendage, not elsewhere classified) | ICHI has no code for ligation of a generic skin lesion; the only skin ligation codes are for skin appendages (e.g. skin tags). A skin lesion is a broader concept than a dermal appendage, so LZZ.LA.AA is related but not semantically equivalent. |
| 79394008 (Ligation of spermatic veins for varicocele with hernia repair) | is related to | NGD.LA.AA (Ligation of spermatic cord) | This SNOMED concept describes a compound procedure — ligation of spermatic veins specifically for varicocele combined with hernia repair — which ICHI does not represent as a single code; NGD.LA.AA covers spermatic cord ligation but omits the varicocele vein specificity and the concurrent hernia repair component entirely. |
| 225237006 (Ligaturing umbilical cord) | is related to | NMM.LA.AH (Umbilical cord clamping) | NMM.LA.AH covers umbilical cord clamping, which is the functionally equivalent clinical action (mechanical occlusion of the umbilical cord at birth) but uses a different means — clamping rather than ligature/tie. No ICHI code specifically for umbilical cord ligation exists; clamping is the closest related intervention. |
| 233497001 (Limb revascularization) | is related to | BlockL4-IFA (Interventions on vessels of lower limb) | ICHI contains no single category code for generic limb revascularization; it instead classifies the specific technique used (bypass, endarterectomy, angioplasty, thrombolysis, reconstruction) under separate codes within the lower-limb and upper-limb vessel blocks. The block BlockL4-IFA is assigned as the closest organisational grouping, but it covers only lower limb. |
| 370856009 (Limiting access to confidential patient information) | is related to | UEP.WI.QD (Restrictions through enactment of laws or standards in relation to health services, systems and policies) | ICHI contains no code for patient information privacy or confidentiality restrictions specifically; UEP.WI.QD represents legislative restrictions within health services policy, which partially overlaps with the governance intent of the SNOMED concept but is far broader and does not address patient data confidentiality as a distinct target. |
| 442426009 (Lipectomy) | is related to | LZZ.LL.AE (Liposuction, not elsewhere classified) | Lipectomy (surgical excision of fat tissue) and liposuction (aspiration-based fat removal) are related but distinct procedures — lipectomy involves cutting out fat tissue whereas liposuction removes it by suction. ICHI has no dedicated lipectomy/fat excision code; LZZ.LL.AE is the closest fat-removal procedure available. |
| 133864008 (Lithotripsy) | is related to | NAN.GA.BJ (Extracorporeal shockwave lithotripsy of urinary system, not elsewhere classified) | ICHI only encodes lithotripsy as site-specific extracorporeal shockwave procedures (kidney, ureter, bladder, bile duct, etc.); the unqualified SNOMED concept "Lithotripsy" is a general procedure category with no site specified, so no single ICHI category is an appropriate match, and the NEC residual code is only a partial approximation. |
| 1354865000 (Loan of device) | is related to | UAE.RD.ZZ (Providing goods for personal indoor and outdoor mobility and transportation) | "Loan of device" is a generic concept that could encompass any device type, whereas ICHI codes that represent provisioning of goods are scoped to specific product domains (mobility, daily living, etc.); no single ICHI code covers device loan in general. UAE.RD.ZZ is chosen as a related code since device loans most frequently involve mobility aids. |
| 1179622000 (Localization of sentinel lymph node using patent blue V and radioactive isotope) | is related to | DFO.BA.BE (Nuclear imaging study of the lymphatic vessel) | ICHI has no specific code for sentinel lymph node mapping; DFO.BA.BE captures the radioisotope/scintigraphic component of the procedure but does not represent the dye (patent blue V) component nor the sentinel node identification purpose. |
| 45565001 (Logotherapy) | is related to | PZB.PQ.ZZ (Psychotherapy for the whole person, not elsewhere classified) | Logotherapy is Viktor Frankl's meaning-centred psychotherapy targeting the whole person rather than a specific body function or behaviour, making PZB.PQ.ZZ the closest structural fit. ICHI has no dedicated logotherapy code. |
| 266713003 (Long-term drug therapy) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | ICHI has no code specifically representing sustained/long-term drug administration as a management strategy; PZX.TI.ZZ is the closest administrative act, but it reflects the prescribing action rather than the ongoing therapeutic regimen. |
| 315346001 (Lower limb artery cannula insertion) | is related to | IFA.FA.AA (Incision of artery of lower limb) | ICHI has no dedicated lower limb arterial cannulation code; IFA.FA.AA is the closest structural match since cannulation typically involves arteriotomy, but captures only the incision action. |
| 266701008 (Lung collapse prevention) | is related to | JTB.PG.ZZ (Assisting and leading exercise for respiration function) | Atelectasis prevention typically involves breathing exercises, incentive spirometry, and respiratory physiotherapy; this SNOMED concept names a goal/intent rather than a specific procedure. |
| 232697001 (Lung reinflation) | is related to | JTB.DE.AC (Artificial ventilation) | Lung reinflation can be achieved through positive-pressure ventilation, manual hyperinflation, or chest physiotherapy; no dedicated ICHI code exists, and artificial ventilation is the closest mechanistic match. |
| 1254993004 (Lupin free diet) | is related to | VEA.TI.ZZ (Prescription for eating behaviours) | ICHI has no code for an allergen-specific elimination diet; VEA.TI.ZZ represents the act of prescribing a dietary behaviour change, the closest clinical action without allergen-avoidance specificity. |
| 119949005 (Lymphatic system injection) | is related to | DZZ.ZY.ZY (Other specified interventions on the haematopoietic or lymphatic system) | ICHI has no dedicated injection code targeting the lymphatic system; the catch-all "other specified interventions" is the closest related code, without specificity for action or target. |
| 91256003 (Lysis of adhesions of female perineum) | is related to | MRS.FC.AA (Release of soft tissue of unspecified site) | ICHI has no perineum-specific adhesion release code — the PAW (perineum) block does not include a release/lysis intervention. MRS.FC.AA captures the action and tissue type but loses both the anatomical site (perineum) and the sex-specificity. |
| 43047008 (Lysis of adhesions of liver) | is related to | KMA.FC.AA (Release of peritoneal adhesions) | ICHI has no liver-specific adhesiolysis code; the liver block (KCA) has no FC release entry. The closest available code (release of peritoneal adhesions) covers perihepatic adhesions but is anatomically broader and not liver-specific. |
| 63465005 (Lysis of adhesions of muscle) | is related to | MRS.FC.AA (Release of soft tissue of unspecified site) | ICHI has no generic "release of adhesions of muscle" code; site-specific muscle release codes exist only for neck and hand. The closest cross-site option captures muscle-containing soft tissue but is anatomically unspecified and semantically broader. |
| 76240002 (Lysis of corneovitreal adhesions) | is related to | BBB.FC.AA (Release of cornea) | No ICHI code exists for corneovitreal adhesion lysis specifically; "Release of cornea" is the closest anatomical match on the anterior target involved, though it does not capture the vitreous component. |
| 784769006 (Magnetocardiography) | is related to | HTB.AC.AH (Electrocardiogram, not elsewhere classified) | ICHI contains no code for magnetocardiography (measurement of the magnetic field produced by cardiac electrical activity); the closest available code is electrocardiogram within the heart functions block, which measures cardiac electrical activity by a different modality. The two are related assessments of cardiac electrophysiology but are not equivalent. |
| 265584006 (Maintenance of artificial urinary sphincter around male bladder neck or urethra) | is related to | NAI.SN.AC (Management of internal device for urinary bladder) | No ICHI code exists specifically for management of a device at the bladder neck or urethra; the artificial urinary sphincter sits at the bladder neck/urethra rather than within the bladder itself, so the bladder device management code is related but anatomically imprecise. |
| 236271001 (Maintenance of bulbar urethral prosthesis for incontinence) | is related to | NAI.SN.AC (Management of internal device for urinary bladder) | ICHI has no dedicated management code for a urethral prosthesis; the closest available code addresses device management in the urinary bladder rather than the urethra itself, making this a related but anatomically imprecise match. |
| 428669008 (Maintenance of dynamic graciloplasty sphincter) | is related to | KBX.SN.AC (Management of internal device of anus) | Dynamic graciloplasty involves both a muscle wrap and an implanted neurostimulator; maintenance of the dynamic component (the device) maps to management of internal device of anus, but the code does not capture the muscle component or the specific nature of a graciloplasty neosphincter. |
| 85004006 (Maintenance of elastic bandage) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | ICHI has no specific code for elastic bandage maintenance or reapplication; the closest concept is application of a dressing to skin (NEC), which is related but covers a broader range of dressing types and does not specifically address elastic/compression bandages or their ongoing maintenance. |
| 239276007 (Maintenance of functional electrical stimulator in skeletal muscle) | is related to | MU2.SC.BP (Electrical stimulation of muscle functions, not elsewhere classified) | MU2.SC.BP covers electrical stimulation of muscle functions and is the only ICHI code addressing electrical stimulation at the skeletal muscle level, but it describes the stimulation intervention itself rather than the maintenance of an implanted functional electrical stimulator device, making it related but not directly equivalent. |
| 442261001 (Maintenance of gastric band) | is related to | KBF.KA.AC (Replacement of gastric device) | KBF.KA.AC is the only assignable ICHI category code for a gastric device intervention in the stomach block; it specifically denotes replacement of a gastric device (which encompasses adjustments and maintenance activities involving a gastric band) but is narrower in focus than general maintenance and skewed toward replacement rather than routine upkeep. |
| 265314004 (Maintenance of ventilation tube through tympanic membrane) | is related to | CBB.JD.AC (Removal of internal device or foreign body from tympanic membrane) | "Maintenance" of a ventilation tube (grommet) encompasses checking, cleaning, or removing the tube, and the closest ICHI action is removal of an internal device from the tympanic membrane. However, ICHI does not have a dedicated code for tube maintenance or surveillance, so this is a related but not equivalent match. |
| 1269480000 (Male perineal care management) | is related to | SMC.RB.ZZ (Practical support with caring for body parts) | "Perineal care management" is a nursing/hygiene activity involving physical assistance with cleansing and care of the perineal area, which maps most closely to ICHI's practical support with caring for body parts. The match is relatedto rather than wider because the ICHI code covers all body parts generically and does not specify the perineum, and the SNOMED concept implies a management plan rather than a single act. |
| 408905008 (Management of crisis therapy) | is related to | SDJ.PQ.ZZ (Psychotherapy for handling stress and other psychological demands) | "Management of crisis therapy" in SNOMED refers to coordinating or overseeing acute psychological crisis treatment; ICHI has no specific crisis intervention or crisis therapy code, but SDJ.PQ.ZZ (psychotherapy targeting stress and psychological demands) is the closest clinical domain match. The ICHI code is narrower in action (specifically psychotherapy) and broader in target (stress/psychological demands generally, not a specific crisis), making a relatedto equivalence the most honest assignment. |
| 713121000 (Management of fatigue) | is related to | ATI.ZZ.ZZ (Other interventions on energy and drive functions, not elsewhere classified) | ICHI does not have a dedicated "fatigue management" code; ATI (energy and drive functions) is the closest target axis concept, and ATI.ZZ.ZZ captures unspecified interventions on energy and drive — the ICF domain most closely corresponding to fatigue. The match is approximate because fatigue management in clinical practice encompasses multiple action types (education, training, practical support) rather than one specific intervention, and no single ATI code captures it precisely. |
| 710963004 (Management of incontinence appliance regime) | is related to | NAI.SN.AC (Management of internal device for urinary bladder) | The SNOMED concept covers the ongoing management of an external incontinence appliance (e.g. pads, external catheter, penile sheath), whereas NAI.SN.AC refers to management of an internal device of the urinary bladder (e.g. indwelling catheter); ICHI has no code for external incontinence appliance management, so this is related but not equivalent — both concern device-based management of urinary incontinence but differ fundamentally in whether the device is internal or external. |
| 710965006 (Management of negative emotional state) | is related to | AUD.ZZ.ZZ (Other interventions on emotional functions, not elsewhere classified) | ICHI's "Interventions on emotional functions" block (AUD) targets emotional functions as a clinical domain, but no single code captures the unspecified multi-modal "management" of a negative emotional state; AUD.ZZ.ZZ (other/NEC interventions on emotional functions) is the closest residual code, though it is structurally a catch-all rather than a direct semantic match. |
| 737046005 (Management of patient controlled analgesia) | is related to | AXA.DB.AF (Intravenous administration of medication for pain) | Patient-controlled analgesia (PCA) is predominantly delivered intravenously, making AXA.DB.AF the closest ICHI code, but it does not capture the defining "patient-controlled" delivery mechanism or the device-management aspect of PCA; the match is therefore relatedto rather than equivalent or wider. |
| 430192001 (Management of thrombolytic therapy) | is related to | IZA.DB.AF (Thrombolysis of artery, not elsewhere classified) | ICHI represents thrombolysis as site-specific procedural codes (e.g., coronary, pulmonary, intracranial artery), and IZA.DB.AF is the NEC fallback for arterial thrombolysis when the artery is unspecified; however, the SNOMED concept is about managing thrombolytic therapy as an ongoing treatment process (including monitoring, dose adjustment, and coordination), not the thrombolysis act itself, and venous thrombolysis (IZD.DB.AF) is equally plausible. The match is related but not directly equivalent. |
| 718451004 (Management of vascular system care) | is related to | IZZ.ZZ.ZZ (Interventions on the circulatory system, unspecified) | ICHI has no code representing management or care of the vascular system as a general concept; IZZ.ZZ.ZZ is the residual unspecified category covering the circulatory system and is the closest structural equivalent, but it is a catch-all residual rather than a true semantic match for ongoing vascular system care management. |
| 21662005 (Manipulation of abdominal artery) | is related to | IEA.AE.AA (Exploration of abdominal or pelvic artery) | ICHI has no "manipulation" action code for arteries; the block for abdominal or pelvic artery (BlockL5-IEA) contains specific surgical interventions (excision, occlusion, bypass, repair) but not generic manipulation. "Exploration of abdominal or pelvic artery" (IEA.AE.AA) is the closest related code, as intraoperative manipulation often accompanies exploration, but the concepts are not directly equivalent. |
| 21320005 (Manipulation of accessory sinus) | is related to | JAE.FA.AA (Sinusotomy, not elsewhere classified) | The accessory (paranasal) sinuses are covered in ICHI block JAE, but no manipulation-action code exists for sinuses; available codes cover drainage, excision, biopsy, repair, and sinusotomy. Sinusotomy (incision of the sinus) is the closest related surgical intervention, but it does not semantically match the broader SNOMED concept of manipulation. |
| 449653000 (Manipulation of lower leg) | is related to | MNJ.PA.AH (Manipulation of ankle joint) | ICHI has no generic "manipulation of lower leg" code; within the lower leg musculoskeletal block (BlockL4-MNB), the only manipulation category is MNJ.PA.AH (ankle joint), which covers only one specific structure of the lower leg rather than the region as a whole. The SNOMED concept is anatomically broader and not joint-specific, making this a related but not equivalent match. |
| 83000000 (Manipulation of ovary) | is related to | NMA.LD.AA (Repositioning of ovary) | ICHI has no generic "manipulation of ovary" code; within the ovary interventions block, NMA.LD.AA (repositioning of ovary) is the closest functional equivalent since surgical manipulation of the ovary most commonly refers to repositioning or mobilising it, but the ICHI code is more specific to one form of manipulation. No NMA.PA code exists for ovary, making this only a related match. |
| 57262007 (Manipulation of pineal gland) | is related to | EAB.AE.AA (Exploration of pineal gland) | ICHI has no generic "manipulation" code for the pineal gland; exploration (EAB.AE.AA) is the closest assignable category, covering surgical access and handling of the pineal gland without a more specific action defined. The SNOMED concept is unspecified as to what manipulation entails, making this a related but not equivalent match. |
| 80099005 (Manipulation of pituitary gland) | is related to | EAA.AE.AA (Exploration of pituitary fossa) | ICHI has no generic "manipulation of pituitary gland" category; exploration of the pituitary fossa (EAA.AE.AA) is the closest assignable code, representing surgical handling of the pituitary region without committing to a more specific action. The SNOMED concept's unspecified manipulation maps relatedly but not equivalently to this exploratory procedure. |
| 65666002 (Manipulation of stomach) | is related to | KBF.LD.AA (Repositioning of stomach) | ICHI has no dedicated "manipulation of stomach" code; KBF.LD.AA (Repositioning of stomach) is the closest procedural concept and covers manual repositioning (e.g. reduction of gastric volvulus or herniation). The match is approximate because "manipulation" is broader and may include other manual procedures not captured by repositioning alone. |
| 19855000 (Manipulation of testis) | is related to | NGL.LC.AA (Orchiopexy) | ICHI has no generic "manipulation of testis" code; orchiopexy (NGL.LC.AA) is the most clinically common procedure referred to by "manipulation of testis" (e.g. for torsion reduction and fixation), but it is a specific operative procedure rather than a generic manipulation, making this only a related match. |
| 5402006 (Manipulation of thoracic artery) | is related to | IDA.MK.AA (Repair of artery of thorax) | ICHI contains no "manipulation of thoracic artery" code, and the thoracic artery block (IDA) only includes specific vascular procedures (excision, occlusion, dilatation, bypass, repair, reconstruction). Repair of artery of thorax is used as a relatedto match since "manipulation" of a vessel surgically most often refers to handling during repair, but this is approximate. |
| 449679009 (Manipulation of upper arm) | is related to | MRJ.PA.AH (Manipulation of joint of unspecified site) | ICHI has no code for manipulation of the upper arm as a region or bone; manipulation codes in the musculoskeletal system are joint-specific (elbow at MEJ.PA.AH, shoulder at MDJ.PA.AH) and none target the upper arm segment itself. MRJ.PA.AH is related but does not capture the full anatomical scope of the SNOMED concept. |
| 84186004 (Manipulation of urethra) | is related to | NAM.LG.AA (Dilatation of urethra) | ICHI contains no generic "manipulation of urethra" category; the interventions on urethra block (BlockL5-NAM) only includes specific procedures such as dilatation, incision, excision, and drainage. Dilatation is the most commonly performed urethral manipulation but captures only one specific form, making this related rather than equivalent. |
| 53051003 (Manual arts therapy) | is related to | SXC.PH.ZZ (Training in engaging in recreation and leisure) | Manual arts therapy is a rehabilitation approach using purposeful craft/art activities to restore function — it maps most closely to recreation and leisure training within ICHI's activities and participation chapter, though it remains a loose match as it does not specifically encode the therapeutic use of manual craft activities. |
| 274939007 (Manual dilation of colostomy) | is related to | KBP.LG.AD (Endoscopic dilatation of colon) | ICHI has no code specifically for manual (digital) dilatation of a colostomy; the only colon dilatation code (KBP.LG.AD) specifies an endoscopic means, making it a procedural mismatch in technique even though the anatomical target is related. |
| 235403008 (Manual dilation of ileostomy) | is related to | KBK.LG.AC (Dilatation of small intestine, not elsewhere classified) | KBK.LG.AC is the only non-endoscopic small intestine dilatation code in ICHI and sits within the same anatomical domain as an ileostomy (small intestine / ileum), but it represents generic small-intestine dilatation rather than specifically manual dilatation of a stoma aperture. |
| 235399004 (Manual reduction of bowel volvulus) | is related to | KBZ.LD.AA (Intra-abdominal manipulation of large intestine, not elsewhere classified) | ICHI has no dedicated code for manual reduction of volvulus; KBZ.LD.AA is the closest conceptual match but differs in approach specificity and does not convey the volvulus (torsion) context. |
| 5151004 (Manual reduction of hemorrhoids) | is related to | KBX.LD.AH (Reduction of anal prolapse) | Internal hemorrhoids that prolapse and are manually reduced involve the same anatomical area (anal canal) and the same mechanical reduction action, and ICHI's "Reduction of anal prolapse" is the closest available code. However, the ICHI code specifically refers to prolapse reduction rather than hemorrhoid reduction, making this a related-to rather than equivalent match. |
| 25073005 (Manual reduction of prolapsed colostomy) | is related to | KBK.LD.AH (Manual reduction of ileostomy prolapse) | This is the only ICHI code for manual reduction of a prolapsed intestinal stoma, but it specifies an ileostomy (small intestine) whereas the SNOMED concept specifies a colostomy (large intestine/colon); the procedures are clinically analogous but target anatomically different segments of bowel. |
| 341729004 (Manual reduction of torsion of intestine) | is related to | KBU.LD.AA (Intra-abdominal reduction of the sigmoid colon) | ICHI has no code explicitly capturing manual reduction of intestinal torsion (volvulus); the closest available code covers intra-abdominal reduction of the sigmoid colon (the most common site), but it does not specify the mechanism (torsion), the manual approach, or the full range of intestinal segments. |
| 172631009 (Manual removal of wax from external auditory canal) | is related to | CAE.JD.AC (Removal of internal device or foreign body from external auditory canal) | ICHI has no dedicated cerumen-removal code; CAE.JD.AC covers removal of a foreign body from the external auditory canal, which overlaps procedurally but is semantically framed around foreign bodies and devices rather than endogenous wax. |
| 118490006 (Marrow purging procedure) | is related to | DGA.JH.AE (Aspiration of bone marrow from donor for transplant) | Marrow purging is an ex vivo procedure that removes unwanted cells from harvested bone marrow before transplantation. No ICHI code exists for ex vivo marrow processing or purging; aspiration for transplant is the closest scope but does not capture the purging action. |
| 410755003 (Maxillary sinusotomy) | is related to | JAF.FA.AA (Radical maxillary antrotomy) | ICHI has no plain "maxillary sinusotomy" code; the closest maxillary-sinus-specific incision code is radical maxillary antrotomy (Caldwell-Luc type), which is a more extensive procedure than a simple sinusotomy, making the match related but not directly equivalent. |
| 225306009 (Maximum observation) | is related to | PZB.AM.ZZ (Observation of whole person) | "Maximum observation" is a psychiatric/nursing concept denoting continuous 1:1 patient monitoring for safety, a level of intensity that ICHI does not represent; the closest available code covers general observation of the whole person but lacks the safety-monitoring intent of the SNOMED concept. |
| 442518003 (Measurement of albumin in peritoneal fluid specimen) | is related to | KMA.AH.XE (Specimen collection of peritoneal fluid) | ICHI encodes only the specimen collection act and separately provides the albumin extension code, but there is no single assignable ICHI code that combines "measurement of albumin" with "peritoneal fluid specimen." The closest relevant code covers collection of the fluid, not the downstream laboratory analyte measurement. |
| 785805004 (Measurement of cervical length using transvaginal ultrasonography) | is related to | NMR.BA.AC (Transvaginal ultrasound of fetal structure) | No ICHI code specifically addresses transvaginal ultrasound of the cervix for length measurement; NMR.BA.AC is the only transvaginal ultrasound code in the female genital system hierarchy but targets fetal structures rather than cervical anatomy. |
| 442553005 (Measurement of chloride in peritoneal fluid specimen) | is related to | KMA.AH.XE (Specimen collection of peritoneal fluid) | ICHI has no code for chemical analysis or chloride measurement of peritoneal fluid; the closest code covers only the specimen collection step, not the downstream laboratory measurement of chloride. |
| 439948009 (Measurement of electrolytes in stool) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI has no code for chemical or electrolyte analysis of stool; the only faeces-related procedure code covers specimen collection rather than the analytical measurement of sodium, potassium, and chloride in the sample. |
| 167671009 (Measurement of feces pH) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI contains no code for fecal pH measurement or any stool chemistry analysis; the only applicable faeces code addresses specimen collection, which is the prerequisite step but not the pH measurement itself. |
| 1234789006 (Measurement of irrigating solution) | is related to | SMG.AB.ZZ (Measurement of fluid intake) | Measurement of irrigating solution (tracking irrigation fluid input/output for bladder or wound irrigation) is most closely related to fluid intake measurement, but irrigating solution is not oral intake but externally administered fluid, making this a related-to rather than an equivalent match. |
| 116832003 (Measurement of ratio of cell count to total gated cells) | is related to | XG5FX1 (Essential flow cytometry panel of antibodies for leukaemia) | The SNOMED concept describes a general flow cytometry analytical technique (gated cell count ratio), which is the underlying method of XG5FX1; however, the ICHI code is narrowly scoped to an essential antibody panel for leukaemia diagnostics and does not represent the general measurement technique. |
| 445893005 (Measurement of renal pelvis and bladder pressure differential using fluoroscopic guidance) | is related to | NAB.BA.BB (Pyelogram) | The Whitaker test (antegrade pressure-perfusion study with fluoroscopic guidance) involves fluoroscopic imaging of the renal pelvis, which overlaps with a pyelogram, but a pyelogram is purely a contrast imaging study rather than a dynamic pressure-differential measurement; no dedicated Whitaker test code exists in ICHI. |
| 713374001 (Measurement of surface foot pressure) | is related to | MVG.AB.ZZ (Measurement of gait pattern) | ICHI has no dedicated code for pedobarography or plantar pressure mapping; MVG.AB.ZZ (measurement of gait pattern) is the closest related concept as it covers quantitative assessment of locomotion mechanics, of which surface foot pressure distribution is a component technique. |
| 56868008 (Measuring output) | is related to | NTC.AB.ZZ (Measurement of urinary excretory functions) | "Measuring output" in nursing fluid balance monitoring encompasses all fluid outputs (urine, vomit, wound drainage, stool), but the only ICHI measurement code applicable is limited to urinary excretory functions; no general fluid output measurement code exists in ICHI. |
| 77102001 (Medial fasciotomy with partial ostectomy of upper extremity) | is related to | MRB.JJ.AA (Partial ostectomy of unspecified site) | No single ICHI code captures the combined fasciotomy plus partial bone excision of the upper extremity; MRB.JJ.AA covers the ostectomy aspect at an unspecified site but lacks the fascia component entirely. |
| 410398001 (Medication administration surveillance) | is related to | UAC.AA.ZZ (Assessment of medications) | No ICHI code directly represents surveillance of medication administration; UAC.AA.ZZ is the closest concept but surveillance implies ongoing systematic monitoring rather than a discrete assessment. |
| 386364007 (Medication administration: ventricular reservoir) | is related to | PZA.DB.AZ (Administering pharmacotherapy, route not specified) | ICHI has no code for drug administration via a ventricular (Ommaya) reservoir; PZA.DB.AZ represents pharmacotherapy without a specified route but does not capture the intraventricular/intracranial aspect. |
| 423846006 (Medication dosage tapering) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | ICHI has no code for dose tapering; PZX.TI.ZZ is the closest available concept since adjusting/tapering a dose is a prescribing action, but it is much broader than a tapering regimen. |
| 1344981004 (Medication interaction care) | is related to | VAD.PN.ZZ (Advising about pharmaceutical use behaviours) | ICHI has no specific code for interaction care; advising about pharmaceutical use behaviours captures a core component but is scoped to a behaviour-change action rather than the full clinical care episode. |
| 1344983001 (Medication interaction case management) | is related to | VAD.ZZ.ZZ (Other and unspecified interventions targeting pharmaceutical use behaviours) | Case management around medication interactions is a coordination process ICHI does not represent; the residual category places the concept in the correct domain but loses specificity for both the interaction focus and case management. |
| 430193006 (Medication reconciliation) | is related to | UAC.TB.ZZ (Planning in relation to medications) | ICHI has no dedicated medication reconciliation code; UAC.TB.ZZ is the closest thematic match as reconciliation involves reviewing and rationalising a patient's medication list, but the ICHI code does not specifically convey the reconciliation process. |
| 435441000124107 (Medication reminder device set-up) | is related to | UAD.DP.ZZ (Installation of assistive products for personal use in daily living) | A medication reminder device is an assistive product for daily living, and UAD.DP.ZZ covers installation/set-up of such products, but the code is generic across all daily-living assistive products. |
| 408901004 (Memory loss care management) | is related to | AUB.PP.ZZ (Counselling for memory functions) | There is no direct "management" action in ICHI for memory functions; the closest clinical activity is counselling for memory functions (AUB.PP.ZZ) within the dedicated memory block. "Care management" encompasses a broader set of activities than counselling alone, but no single ICHI category captures the full care planning/coordination meaning of this SNOMED concept. |
| 268530007 (Menopause monitoring) | is related to | NUB.AA.ZZ (Assessment of menstruation functions) | ICHI does not have a dedicated menopause code; the nearest physiological domain is "Interventions on menstruation functions," and NUB.AA.ZZ covers assessment of that function. Menopause monitoring is conceptually adjacent — it tracks the cessation of menstruation/reproductive hormonal function — but NUB.AA.ZZ targets menstruation rather than menopausal transition specifically. |
| 171423009 (Mental Health Act examination) | is related to | AT2.AA.ZZ (Assessment of global mental functions, not elsewhere classified) | A Mental Health Act examination is a statutory psychiatric assessment used to determine capacity and grounds for compulsory admission; ICHI has no code for forensic or legislative psychiatric examination. AT2.AA.ZZ is the closest functional category, but it lacks the legal/compulsory dimension entirely. |
| 391211007 (Mental health addiction programs - 1-2 contacts/week) | is related to | VAC.PP.ZZ (Counselling about illicit drug use behaviours) | "Addiction programs" span both substance and mental health dimensions; VAC.PP.ZZ covers counselling for illicit drug use, which represents the most common addiction program target in ICHI's substance behaviour section. The SNOMED concept is a service-delivery descriptor (frequency of contacts), and ICHI does not encode contact frequency, so no equivalent or narrower match is achievable. |
| 391209003 (Mental health addiction programs - daily intensive) | is related to | VA1.ZZ.ZZ (Other and unspecified interventions targeting unspecified substance-related and addictive behaviours) | ICHI classifies individual interventions rather than structured care delivery programs, so there is no ICHI code for a "daily intensive addiction program" as a delivery modality. VA1.ZZ.ZZ captures the substance-related and addictive behaviour domain as a residual category, but the program-as-package nature has no ICHI equivalent. |
| 391207001 (Mental health addiction programs - full day : day care) | is related to | VA1.ZZ.ZZ (Other and unspecified interventions targeting unspecified substance-related and addictive behaviours) | ICHI does not encode care delivery settings or day-program structures; the SNOMED concept describes a full-day day-care addiction program as a service type. VA1.ZZ.ZZ is the best available domain anchor but the setting and program-bundle semantics are not represented. |
| 391208006 (Mental health addiction programs - part day : day care) | is related to | VA1.ZZ.ZZ (Other and unspecified interventions targeting unspecified substance-related and addictive behaviours) | This part-day day-care variant shares the same structural mismatch with ICHI as the other addiction program concepts — ICHI encodes individual clinical actions, not care delivery modalities or program intensities. VA1.ZZ.ZZ is used as the domain-level placeholder. |
| 390826005 (Mental health caregiver support) | is related to | UCH.RB.ZZ (Practical support with personal care providers and personal assistants) | "Mental health caregiver support" targets the informal caregiver of a mental health patient, and UCH.RB.ZZ is the closest available code addressing support directed at those providing informal or formal personal care. It is only relatedto rather than wider/narrower because UCH targets "support from" rather than "support provided to" the caregiver, and the mental health specificity is absent. |
| 390825009 (Mental health caregivers' respite) | is related to | UCH.RG.ZZ (Providing services in relation to support from personal care providers and personal assistants) | Caregivers' respite is a specific service that relieves informal carers of a mental health patient; ICHI has no specific respite code, but UCH.RG.ZZ is the closest available code, covering service provision in the context of personal care relationships. The match is only relatedto because ICHI does not capture the concept of relief/substitution for the carer. |
| 390814000 (Mental health crisis resolution) | is related to | ATF.PP.ZZ (Counselling for global psychosocial functions) | Mental health crisis resolution is a community-based intervention for acute psychiatric crises; ICHI has no crisis intervention code, and the closest available concept targeting the psychosocial dimension is ATF.PP.ZZ. This is only relatedto because counselling is just one component of crisis resolution, which also encompasses assessment, coordination, intensive support, and risk management. |
| 391134009 (Mental health crisis resolution - 24 hour intensive) | is related to | ATF.PP.ZZ (Counselling for global psychosocial functions) | The 24-hour intensive variant specifies a more intensive, around-the-clock delivery model; as with the non-intensive form, ICHI lacks a crisis intervention or intensive home treatment code, making ATF.PP.ZZ the best available approximation. The 24-hour intensity and home-treatment delivery are entirely unrepresented in ICHI. |
| 58586006 (Microbial ova-parasite examination) | is related to | XG69Q0 (Microscopy) | ICHI has no code for ova-and-parasite examination or parasitological stool microscopy. XG69Q0 "Microscopy" is the most related available code since ova-and-parasite examination is performed by microscopic examination, but the match is approximate as "Microscopy" is far broader and does not capture the parasitological focus. |
| 269934003 (Microbiology) | is related to | XG6201 (Genus and species identification of bacteria and fungi) | "Microbiology" as a SNOMED concept represents the entire discipline/domain of laboratory microbiology, encompassing culture, staining, identification, susceptibility testing, and more. XG6201 is the most representative single microbiological identification code in ICHI, but it captures only one facet of the broad domain; the relationship is associative rather than equivalent or hierarchically clean. |
| 1290177009 (Midwifery led antenatal care) | is related to | NUE.AA.ZZ (Assessment of functions related to pregnancy) | No ICHI code represents midwife-led antenatal care as a model; NUE.AA.ZZ covers pregnancy-function assessment, the closest clinical activity within an antenatal pathway. |
| 408381007 (Migraine prophylaxis) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | Migraine prophylaxis is most often delivered as preventive pharmacotherapy; ICHI has no migraine-specific code, and prophylaxis can also be non-pharmacological, so the match is relational. |
| 370833000 (Minimizes the length of invasive procedure by planning care) | is related to | PZB.TB.ZZ (Individualised planning) | Closest available care-planning code; broader than the SNOMED concept and not specific to invasive-procedure-length minimisation. |
| 737471002 (Minor surgery care management) | is related to | PZB.TD.ZZ (Case coordination) | ICHI has no perioperative care-management code; case coordination is the nearest whole-person management concept but does not capture the surgical context. |
| 9517003 (Mirror examination) | is related to | JAN.AE.AC (Laryngoscopy) | Mirror examination (indirect laryngoscopy/nasopharyngoscopy) most commonly targets the larynx; ICHI's laryngoscopy code captures the typical anatomical target but the SNOMED concept is technique-specific and broader anatomically. |
| 370869008 (Mobility deficit management) | is related to | SJA.PH.ZZ (Training in walking) | No ICHI code represents overall mobility-deficit management; training in walking is the closest related therapeutic action but substantially narrower. |
| 710998001 (Monitoring for child abuse) | is related to | VBB.AA.ZZ (Assessment of family and partner violence behaviours) | Child abuse falls within family violence; nearest related ICHI code, but oriented toward assessing violent behaviours rather than clinical surveillance of a child for signs of abuse. |
| 763482000 (Monitoring for stress) | is related to | SDJ.AM.ZZ (Observation of handling stress and other psychological demands) | Closest behavioural-domain match; the ICHI code focuses on the functional ability to handle stress rather than physiological/psychological stress monitoring as in SNOMED. |
| 442232002 (Monitoring of cardiac output using continuous esophageal Doppler) | is related to | HZZ.BA.AC (Transoesophageal echocardiography) | No ICHI code for oesophageal Doppler cardiac output monitoring; transoesophageal echocardiography shares the route and cardiac domain but is a distinct ultrasound-imaging technique. |
| 40726004 (Morphometric analysis, muscle) | is related to | MRM.AD.AA (Biopsy of muscle of unspecified site) | Morphometric analysis of muscle is a histological/quantitative examination of muscle tissue, typically performed on a biopsy specimen; MRM.AD.AA is the closest procedural step in ICHI but represents tissue acquisition rather than the analytical examination itself. |
| 3651000 (Morphometric analysis, nerve) | is related to | ACA.AD.AA (Biopsy of peripheral nerve) | Morphometric analysis of nerve tissue is a quantitative microscopic examination performed on nerve biopsy material; ACA.AD.AA captures the closest related procedural act in ICHI but represents specimen acquisition, not the morphometric analysis itself. |
| 763192000 (Mouth care after head and neck surgery) | is related to | KAZ.JG.AC (Debridement of oral cavity, not elsewhere classified) | ICHI has no specific post-surgical mouth care or wound management code; KAZ.JG.AC is the closest structural intervention on the oral cavity following surgery, but it captures only one procedural component of the broader nursing/rehabilitative concept of post-surgical mouth care. |
| 385937007 (Mouth care management) | is related to | KAZ.ZZ.ZZ (Oral cavity, not elsewhere classified) | There is no ICHI code for general mouth care management as a nursing/care activity; KAZ.ZZ.ZZ is the residual catch-all for unclassified oral cavity interventions and serves only as a loose placeholder for this broad concept. |
| 119861001 (Mouth closure) | is related to | KAA.MK.AA (Repair of lip) | "Mouth closure" in SNOMED CT refers to the surgical closure of the oral aperture, which most closely aligns with repair of the lip in ICHI; however KAA.MK.AA is restricted to the lip rather than the full oral opening, making it an imprecise relatedto match. |
| 303994002 (Mouth smear procedure) | is related to | KAR.AH.XF (Specimen collection from oropharynx) | KAR.AH.XF is coded as Specimen collection from oropharynx but carries a proposed secondary title of Specimen collection from mouth, making it the closest ICHI code for a mouth smear; however, oropharynx is anatomically distinct from the broader mouth cavity, and smear is not fully synonymous with generic specimen collection. |
| 241625000 (MRI of pancreas) | is related to | KCO.BA.BH (Magnetic resonance cholangiopancreatography, not elsewhere classified) | ICHI's only pancreas-related MRI code is MRCP, which specifically images the biliary and pancreatic ductal system using MRI; this is a specialised subset of pancreatic MRI and does not cover general MRI of the pancreatic parenchyma. No general "MRI of pancreas" code exists in ICHI, making this a related but non-equivalent match. |
| 287051000000107 (Multidisciplinary meeting) | is related to | PZB.TD.ZZ (Case coordination) | ICHI has no specific code for a multidisciplinary team meeting. "Case coordination" (PZB.TD.ZZ) is the closest available concept under "Interventions on whole person," capturing the organisational/coordination nature of the encounter, but it is broader and does not specifically denote a meeting format or multidisciplinary team composition. |
| 708004003 (Multidisciplinary review) | is related to | PZB.TD.ZZ (Case coordination) | Like "multidisciplinary meeting," there is no ICHI code specifically for a multidisciplinary review. "Case coordination" remains the closest match for a structured review activity involving care-team coordination across disciplines, though it does not capture the review/assessment character of the concept. |
| 60515004 (Muscle-testing electrodiagnosis with chronaximetry) | is related to | MRM.AB.AE (Electromyography) | Chronaximetry is an electrodiagnostic measurement of muscle/nerve electrical excitability (strength-duration curves), which is a distinct technique from EMG; ICHI's closest electrophysiological muscle code is electromyography (MRM.AB.AE), but this is a related rather than equivalent intervention since chronaximetry measures excitability thresholds rather than electrical activity of contracting muscle. |
| 363210006 (Musculoskeletal system education) | is related to | MZZ.ZZ.ZZ (Interventions on the musculoskeletal system, unspecified) | No ICHI category represents "education about the musculoskeletal system" at the system level; individual education codes exist only for specific functions (joint mobility, muscle tone, etc.). The system-level unspecified code is the closest available anchor, though it does not convey the educational nature of the intervention. |
| 7367000 (Musculoskeletal system procedure on abdomen) | is related to | MZZ.ZZ.ZZ (Interventions on the musculoskeletal system, unspecified) | ICHI does not have a code specifically combining "musculoskeletal" with "abdomen" — abdominal wall procedures are classified under a separate non-musculoskeletal block (PAL), and trunk musculoskeletal blocks (MCB) do not cover the abdomen specifically. The unspecified musculoskeletal residual code is the closest available anchor, though it does not capture the abdominal site qualifier. |
| 363217009 (Musculoskeletal system rehabilitation procedure) | is related to | MZZ.ZZ.ZZ (Interventions on the musculoskeletal system, unspecified) | ICHI does not have a single code for "musculoskeletal rehabilitation" as a category; rehabilitation interventions on the musculoskeletal system are distributed across multiple functional targets (muscle power, joint mobility, muscle endurance, etc.). The unspecified musculoskeletal residual code is the only available anchor at this level of abstraction, but it does not convey the rehabilitative nature of the procedure. |
| 66273008 (Myocutaneous flap to extremity) | is related to | MRM.LJ.AA (Muscle transfer or transplantation of unspecified site) | ICHI does not have a dedicated myocutaneous (muscle+skin combined) flap code for extremities; the closest functional match is muscle transfer/transplantation at an unspecified site, which captures the muscle component of the procedure but omits the cutaneous component and the extremity specificity. |
| 82685003 (Myringotomy with tubes discharge education) | is related to | CBB.JB.AC (Myringotomy with insertion of tube) | The SNOMED concept is specifically about patient discharge education following myringotomy with tube insertion — an educational/counselling activity — rather than the surgical procedure itself. CBB.JB.AC captures the procedural component but not the educational intent, making it a related-but-not-equivalent match. |
| 302683009 (Narcoanalysis) | is related to | AS1.AN.ZZ (Interview in relation to mental functions, unspecified) | Narcoanalysis is a drug-assisted (typically barbiturate-induced) interview technique used to elicit information from a patient regarding mental and psychological content; the closest ICHI concept is an interview targeting mental functions. The match is only relatedto because ICHI does not encode the pharmacological sedation component or the investigative/forensic intent. |
| 303262000 (Narcosynthesis) | is related to | AS1.AN.ZZ (Interview in relation to mental functions, unspecified) | Narcosynthesis is a psychotherapeutic technique using drug-induced sedation to access repressed memories and facilitate emotional integration. ICHI has no code for drug-facilitated psychotherapy; AS1.AN.ZZ is the closest available concept, but the therapeutic/reconstructive intent and pharmacological means are absent from the ICHI code. |
| 302748001 (Narcotherapy) | is related to | PZA.DC.AF (Intravenous anaesthesia) | Narcotherapy refers to the use of prolonged drug-induced sleep or sedation as a therapeutic modality (historically used in psychiatry); the pharmacological means most closely align with intravenous anaesthesia, which captures the IV drug administration component. However, ICHI does not encode the therapeutic/psychiatric intent of narcotherapy, and the action axis does not reflect therapeutic sleep induction. |
| 117644007 (Narcotic identification) | is related to | VAC.AC.ZZ (Test of illicit drug use behaviours) | Narcotic identification refers to a laboratory or analytical procedure to identify narcotic substances, which differs in intent from VAC.AC.ZZ, a behavioural/clinical test assessing illicit drug use patterns in a person. ICHI does not contain a code for chemical or forensic identification of narcotic substances, so this is the closest available concept but only relationally linked. |
| 171866006 (Neurostimulation of peripheral nerve) | is related to | ACA.DL.AA (Insertion of device into peripheral nerve) | ICHI has no leaf-level stimulation code (SC action) for the peripheral nerve target block (ACA); the closest procedural codes are device insertion into peripheral nerve (ACA.DL.AA), which covers the implantation aspect of peripheral nerve stimulator placement but not the stimulation act itself. The broad functional stimulation code AXA.SC.BP is pain-focused and anatomically non-specific, making ACA.DL.AA the most structurally related code despite the semantic gap. |
| 231024002 (Neurostimulation of spinal cord tissue) | is related to | ABN.SC.BP (Stimulation of spinal nerve) | ICHI has no dedicated stimulation code for the spinal cord target (ABA.SC.BP does not exist), and the spinal cord children block contains no SC-action leaf. ABN.SC.BP (stimulation of spinal nerve) is the nearest available code within the same structural block (BlockL4-ABA, Interventions on spinal cord structures), but it targets spinal nerves rather than spinal cord tissue itself, which is a clinically meaningful distinction. |
| 231109008 (Neurostimulation/modulation) | is related to | AXA.SC.BP (Electrical stimulation for pain) | This SNOMED concept is a high-level grouping for all forms of neurostimulation/neuromodulation with no single-target anatomical specificity; ICHI has no equivalent umbrella code and the closest cross-cutting electrical stimulation code is AXA.SC.BP (electrical stimulation for pain), which is functionally defined and narrower in purpose. |
| 423558004 (Neurovascular assessment) | is related to | AZZ.AA.ZZ (Neurological assessment, not elsewhere classified) | ICHI has no dedicated "neurovascular assessment" code that captures both neurological status and vascular perfusion together. AZZ.AA.ZZ is the closest available code covering the neurological component, but it omits the vascular dimension (pulse, capillary refill, perfusion) that defines neurovascular assessment as a distinct clinical procedure. |
| 408974008 (Neurovascular care assessment) | is related to | AZZ.AA.ZZ (Neurological assessment, not elsewhere classified) | Like "neurovascular assessment," this concept covers combined neurological and vascular evaluation in a care context; no ICHI code captures this combined domain, and AZZ.AA.ZZ addresses only the neurological assessment component while leaving the vascular perfusion component unrepresented. |
| 229456005 (Nonsurgical manipulation of lower limb) | is related to | MRJ.PA.AH (Manipulation of joint of unspecified site) | ICHI provides joint-specific manipulation codes for individual lower limb structures (hip MLJ.PA.AH, knee MMJ.PA.AH, ankle MNJ.PA.AH, foot/toe MOJ.PA.AH) but no single collective code covering the entire lower limb; MRJ.PA.AH (unspecified site) is the only catch-all available, making it a related but imprecise match for an unspecified lower limb manipulation concept. |
| 170530008 (Notification of AIDS) | is related to | UBC.VC.ZZ (Population public health surveillance) | ICHI contains no code for individual statutory notifiable disease notification; UBC.VC.ZZ (population public health surveillance) is the closest conceptual domain, as mandatory case notification is a data-collection mechanism that feeds surveillance systems. The ICHI code is broader and population-oriented, whereas the SNOMED concept is a single-case administrative reporting act. |
| 170517007 (Notification of dysentery) | is related to | UBC.VC.ZZ (Population public health surveillance) | ICHI does not encode individual statutory disease notification; UBC.VC.ZZ is the nearest available code as the population surveillance framework into which such notifications feed, but it is a fundamentally broader concept. |
| 170518002 (Notification of food poisoning) | is related to | UBC.VC.ZZ (Population public health surveillance) | No ICHI code exists for single-case statutory reporting of a notifiable disease; UAB.VC.ZZ (public health surveillance concerning food safety and security) was also considered but is more specific to food-safety environmental surveillance than to clinical case notification, making UBC.VC.ZZ the broader and more appropriate relatedto anchor. |
| 170534004 (Notification of glandular fever) | is related to | UBC.VC.ZZ (Population public health surveillance) | ICHI has no code for statutory notification of an individual case of infectious mononucleosis (glandular fever); UBC.VC.ZZ represents the population-level surveillance activity that such notifications support, and is the closest available code in the classification. |
| 268508006 (Notification of infectious jaundice) | is related to | UBC.VC.ZZ (Population public health surveillance) | Infectious jaundice (typically hepatitis A) notification is a statutory clinical-to-authority reporting act; ICHI encodes no such single-case notification concept, and UBC.VC.ZZ is the nearest code as the population-level surveillance domain that the notification data populates. |
| 384715000 (Nucleic acid hybridization procedure) | is related to | XG4U02 (Viral nucleic acid amplification test) | ICHI has no code for nucleic acid hybridization as a general laboratory technique; the closest codes are specific viral nucleic acid tests (e.g., PCR-based amplification). XG4U02 (Viral nucleic acid amplification test) is related — both involve nucleic acid detection — but hybridization and amplification are distinct methodologies, and the SNOMED concept is not restricted to viral targets. |
| 104165000 (Nucleic acid probe method) | is related to | XG4U02 (Viral nucleic acid amplification test) | ICHI's XG4U02 covers nucleic acid amplification tests (the dominant application of nucleic acid probes) but is scoped only to viral targets, while the SNOMED concept is a broader method category applicable to any organism and including non-amplification probe techniques such as FISH or dot-blot hybridisation. The codes are related but neither subsumes the other precisely. |
| 410172000 (Nutrition care management) | is related to | PZB.TB.ZZ (Individualised planning) | Nutrition care management is an individual-level, clinician-led process of coordinating a patient's nutritional care plan; PZB.TB.ZZ captures the planning and coordination dimension but does not specify nutrition. No ICHI code directly represents holistic individual nutrition care management. |
| 386372009 (Nutrition management) | is related to | UAB.TI.ZZ (Prescription of food) | UAB.TI.ZZ is the most specific ICHI code covering a prescriptive/directive action concerning food/nutrition. However, "nutrition management" is a broader, ongoing process spanning assessment through intervention, while UAB.TI.ZZ covers only the prescriptive act within a population/environmental framework. |
| 50781000119109 (Nutrition therapy for congestive heart failure) | is related to | PZA.DA.ZZ (Administering nutritional requirements, not elsewhere classified) | PZA.DA.ZZ is the broadest NEC code for administering nutritional requirements, capturing the therapeutic nutritional intervention aspect. However, it does not encode the disease-specific context (congestive heart failure) or therapeutic counselling dimension, and ICHI lacks any code combining nutrition intervention with a cardiac indication. |
| 410403000 (Nutritionist surveillance) | is related to | KTN.AA.ZZ (Assessment of weight maintenance functions) | "Nutritionist surveillance" implies ongoing professional oversight of nutritional/weight status, broadly aligning with assessment of weight maintenance functions; however, ICHI does not encode the nutritionist-as-provider role, and "surveillance" has a longitudinal connotation not captured by a single assessment code. |
| 763643007 (Obesity care) | is related to | KTN.PP.ZZ (Counselling for weight management) | "Obesity care" is a broad, undifferentiated management concept spanning assessment, counselling, education, and support; no single ICHI code covers this composite, and KTN.PP.ZZ represents only the counselling component, making it a related but inexact and narrower match. |
| 268551005 (Obesity screening) | is related to | KTN.AC.ZZ (Test of weight maintenance functions) | ICHI has no dedicated obesity screening code; KTN.AC.ZZ is the closest available, capturing a clinical test of weight-related functions (e.g. BMI measurement). However, "test of weight maintenance functions" is functionally oriented and broader than the specific act of screening for obesity. |
| 230918002 (Obliteration of intracranial arteriovenous fistula) | is related to | IAA.LA.AF (Endovascular embolisation or occlusion of intracranial artery) | ICHI has no dedicated code for AV fistula obliteration; the intracranial target axis covers arteries only, not the AV fistula itself, and the action LA is semantically close to obliteration but the target mismatch (artery vs. AV fistula) means this is related but not equivalent. The endovascular approach also does not cover all obliteration techniques. |
| 82310009 (Obliteration of lumbar pseudomeningocele) | is related to | ABC.MK.AA (Repair of spinal meninges) | ICHI has no code for pseudomeningocele obliteration or for pseudomeningocele as a target; repair of spinal meninges is the closest concept, as obliterating a pseudomeningocele involves closing the meningeal defect, but the target and action differ enough that this is only a related match. |
| 2866006 (Obliteration of lymphatic structure) | is related to | DFZ.JJ.AA (Partial excision of lymphatic structure, not elsewhere classified) | ICHI offers destruction of lymphatic vessel and occlusion of lymphatic vessel but both target "vessel" specifically; DFZ.JJ.AA uses the unspecified lymphatic structure target which better matches the broad SNOMED concept, though excision is not the same action as obliteration. |
| 225405007 (Observation while in seclusion) | is related to | PZB.AM.ZZ (Observation of whole person) | ICHI has no code for observation during a seclusion episode — the seclusion context (a mental health safe-room placement) is entirely absent from ICHI; PZB.AM.ZZ captures the monitoring/observation action on the whole person but loses the clinically significant seclusion setting. |
| 699999008 (Obstetrical version with extraction) | is related to | NMR.LD.AC (Rotation of fetus) | No single ICHI code captures the combined procedure of version followed by extraction; NMR.LD.AC (rotation of fetus) covers the repositioning component but omits the subsequent extraction, and vaginal delivery codes cover extraction without version — this is the closest related code but not equivalent. |
| 86686000 (Occlusal adjustment, complete) | is related to | KAE.MK.AC (Restoration of tooth) | ICHI has no dedicated occlusal adjustment code; the dental section (KAE) covers scaling/debridement, restoration, and appliance management, but not occlusal equilibration as a distinct procedure. KAE.MK.AC is the closest dental intervention in scope but not semantically equivalent. |
| 78912007 (Occlusal adjustment, limited) | is related to | KAE.MK.AC (Restoration of tooth) | Same reasoning as for 86686000 — ICHI lacks a specific occlusal adjustment code, and KAE.MK.AC is the nearest available dental procedure code, though it does not distinguish between complete and limited occlusal adjustment nor capture the procedure's nature accurately. |
| 410487001 (Occlusion therapy) | is related to | BTB.PH.ZZ (Training of seeing functions) | "Occlusion therapy" in clinical practice almost universally refers to eye patching to treat amblyopia by forcing use of the weaker eye, which is a rehabilitative training of visual function; BTB.PH.ZZ captures this rehabilitative intent but is broader and does not encode the specific occlusion/patching mechanism. No ICHI code specifically represents occlusion therapy as a distinct intervention. |
| 275191002 (Open biopsy of lesion of postnasal space) | is related to | JAM.AD.AD (Nasopharyngoscopy with biopsy) | The only ICHI biopsy code for the nasopharynx (postnasal space) is JAM.AD.AD, which specifies an endoscopic (nasopharyngoscopic) approach, directly conflicting with the open approach specified by the SNOMED concept; no open nasopharynx biopsy code exists in ICHI. |
| 450643004 (Open cannulation of artery) | is related to | IZA.FA.AA (Incision of artery, not elsewhere classified) | ICHI has no cannulation-specific code for arteries; the closest open-approach code is IZA.FA.AA (arteriotomy/incision of artery), which covers the open cut-down access that underlies open arterial cannulation, but does not capture the cannulation/device-placement component. |
| 175863008 (Open cannulation of vein) | is related to | IZD.DL.AF (Percutaneous transluminal insertion of device into vein, not elsewhere classified) | ICHI has no open cannulation of vein code; IZD.DL.AF is the closest functional match (insertion of device into vein NEC), but it specifies a percutaneous transluminal approach (AF) rather than the open surgical approach of the SNOMED concept, making this a related but approach-mismatched mapping. |
| 22773009 (Open curettage of urinary bladder) | is related to | NAI.JI.AA (Local excision of lesion of bladder) | ICHI has no curettage code for the urinary bladder; NAI.JI.AA (local excision of lesion of bladder, open approach AA) is the nearest functional equivalent, as open curettage removes tissue from bladder lesions by scraping, which is procedurally related to local excision but not semantically identical. |
| 173177006 (Open decortication of lesion of lung) | is related to | JBF.JI.AA (Local excision of lesion of lung) | ICHI contains no decortication code; decortication of a lung lesion involves removing a fibrous rind or cortex from a lesion, which is functionally closest to local excision of a lesion of the lung (JBF.JI.AA, open approach). The two procedures differ in technique — decortication strips a surface layer rather than excising a discrete mass. |
| 287725001 (Open fulguration of neoplasm of urinary bladder) | is related to | NAI.JI.AA (Local excision of lesion of bladder) | ICHI has no fulguration (electrodestruction) code for the urinary bladder; the closest assignable code targets a bladder lesion via local excision (open approach), which overlaps in anatomical target and oncological intent but uses excision rather than electrodestruction as the action. The "open" approach and neoplasm target partially align, but the means (fulguration vs. excision) differ fundamentally. |
| 438763005 (Open grafting of osteochondral autograft to knee) | is related to | MMC.KD.AA (Transplantation of chondrocyte cells of knee joint) | ICHI has no specific osteochondral autograft code for the knee; MMC.KD.AA is the closest available code covering cartilage-related transplantation at the knee joint, but it describes cell-level chondrocyte transplantation rather than the transfer of an intact osteochondral bone-and-cartilage plug. The open approach and knee site align, but the ICHI action is narrower and technically distinct. |
| 438838002 (Open grafting of osteochondral autograft to talus) | is related to | MOB.ML.AA (Bone graft to bone of foot or toe) | ICHI lacks a talus-specific or osteochondral-specific graft code; MOB.ML.AA covers bone grafting to the foot/toe region (which anatomically encompasses the talus) and partially captures the osseous component of an osteochondral autograft, but misses the cartilage component and the specific talus target. The open approach aligns. |
| 233070000 (Open insertion of right ventricular catheter) | is related to | HZB.AB.AF (Right heart cardiac catheterisation) | ICHI's right heart cardiac catheterisation (HZB.AB.AF) is a diagnostic catheterisation procedure performed percutaneously, whereas the SNOMED concept specifies an open surgical approach for inserting a catheter into the right ventricle (typically for monitoring or therapeutic purposes). No ICHI code specifically represents open surgical placement of a catheter into the right ventricle, making this only a related concept. |
| 371567007 (Open reduction of fracture and external fixation) | is related to | MRB.LD.AA (Open reduction of bone of unspecified site) | ICHI captures the open reduction component but has no combined code for open reduction with external fixation, and the unspecified-site target makes it a loose match. The external fixation aspect of the SNOMED concept is entirely absent from the ICHI code. |
| 233029002 (Open removal of foreign body from left atrium) | is related to | HZZ.JD.AE (Percutaneous removal of internal device or foreign body from heart, not elsewhere classified) | ICHI has no code for open removal of a foreign body specifically from the left atrium; the only available cardiac foreign body removal codes are percutaneous and scoped to "heart NEC" rather than the left atrium specifically. |
| 233082009 (Open removal of foreign body from left ventricle) | is related to | HZZ.JD.AE (Percutaneous removal of internal device or foreign body from heart, not elsewhere classified) | ICHI has no open-approach foreign body removal code specific to the left ventricle; the closest available codes are restricted to percutaneous approach and unspecified as to cardiac chamber. |
| 233016002 (Open removal of foreign body from right atrium) | is related to | HZZ.JD.AE (Percutaneous removal of internal device or foreign body from heart, not elsewhere classified) | ICHI contains no open foreign body removal code for the right atrium specifically; the only available heart foreign body removal codes are percutaneous and non-chamber-specific. |
| 233055001 (Open removal of foreign body from right ventricle) | is related to | HZZ.JD.AE (Percutaneous removal of internal device or foreign body from heart, not elsewhere classified) | The right ventricle block (HBB) contains no foreign body removal code; the only ICHI codes covering foreign body removal from the heart specify a percutaneous approach rather than open. |
| 442984001 (Open repair of distal tibiofibular joint) | is related to | MNJ.LD.AA (Open reduction of ankle joint) | ICHI has no dedicated code for repair of the distal tibiofibular joint; the joint is anatomically part of the ankle complex, and MNJ.LD.AA is the closest open procedural code, but it describes reduction rather than repair. |
| 118485008 (Opening of intervertebral disc) | is related to | MBV.JJ.AA (Excision of intervertebral disc, not elsewhere classified) | ICHI does not have a dedicated "incision" or "opening" code for intervertebral disc; MBV.JJ.AA (excision, unspecified site) is related but involves tissue removal rather than mere incision. |
| 233219001 (Operation for pulmonary arteriovenous malformation) | is related to | HID.LA.AF (Endovascular embolisation or occlusion of pulmonary artery) | Endovascular embolisation is the principal treatment modality for pulmonary AVM, but ICHI codes this as occlusion of the pulmonary artery rather than naming the AVM target specifically; the AVM involves peripheral pulmonary vasculature. |
| 232556001 (Operation for voice pitch change) | is related to | JAN.ML.AA (Reconstruction of larynx) | ICHI contains no phonosurgery, cricothyroid approximation, or pitch-specific laryngeal procedure; JAN.ML.AA is the closest structural code but covers all laryngeal reconstruction indications rather than pitch alteration. |
| 172026008 (Operation on aberrant adrenal tissue) | is related to | EBC.JI.AA (Local excision of lesion of adrenal gland) | ICHI has no code for operation on ectopic or aberrant adrenal tissue; the operatively equivalent procedure is coded under the normal adrenal gland target, which does not capture the ectopic anatomical location. |
| 171976005 (Operation on aberrant thyroid tissue) | is related to | EBA.JI.AA (Local excision of lesion of thyroid) | ICHI has no code for ectopic or aberrant thyroid tissue excision; EBA.JI.AA targets lesion excision at the normal thyroid gland site, related but not equivalent given the ectopic anatomical location. |
| 8532004 (Operation on adrenal nerve) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | ICHI has no code for the adrenal nerve specifically; it organises sympathetic interventions by spinal region without a dedicated adrenal nerve target. The residual sympathetic NS code is the closest concept available. |
| 78418002 (Operation on heart and pericardium) | is related to | BlockL4-HFA (Interventions on endocardium, pericardium, myocardium) | No single ICHI block covers both the full heart (atria, ventricles, valves, coronary vessels) and the pericardium together; BlockL4-HFA is the closest available block that explicitly includes pericardium alongside cardiac structures, but it excludes valves, atria, ventricles, and coronary arteries, making it a related but imprecise match for this broad SNOMED grouper. |
| 35030006 (Operation on heart valve adjacent structure) | is related to | BlockL4-HDE (Interventions on heart valves) | ICHI does not have a dedicated block or code for structures adjacent to heart valves (chordae tendineae, papillary muscles, valve annulus). BlockL4-HDE groups all interventions on heart valves themselves, making it the closest related area, but it does not cover the subvalvular and periannular structures that the SNOMED concept addresses. |
| 239223002 (Operation on lesion of ganglion) | is related to | AZZ.JI.AA (Local excision of lesion of nerve, not elsewhere classified) | ICHI has no dedicated ganglion-lesion operation code; the AAN block (cranial nerve/ganglion) lacks a lesion-excision child, and AZZ.JI.AA is the closest residual category covering lesion excision on nervous system structures not classified elsewhere. The SNOMED concept is non-specific about both the operation type and the ganglion type, making a precise match impossible. |
| 231074000 (Operation on lesion of peripheral nerve) | is related to | AZZ.JI.AA (Local excision of lesion of nerve, not elsewhere classified) | The ACA (peripheral nerve) block contains no "local excision of lesion" child code, so AZZ.JI.AA — the nervous system NEC residual for lesion excision — is the best available approximation. The SNOMED concept is intentionally broad (any operation, any lesion type) and ICHI cannot represent that generality; AZZ.JI.AA is related but narrows the action to local excision and uses the NEC nerve target. |
| 239262006 (Operation on lesion of tendon) | is related to | MRT.JI.AA (Local excision of lesion of tendon sheath of unspecified site) | ICHI has no code titled "operation on lesion of tendon" at an unspecified site covering all action types; the closest unspecified-site tendon-lesion code is MRT.JI.AA, which specifies local excision of the tendon sheath rather than the tendon body itself, making it a related but imprecise match for the broad SNOMED grouper concept. |
| 237384003 (Operation on mastectomy scar) | is related to | LAB.MK.AA (Repair of skin and subcutaneous cell tissue of trunk) | No ICHI code exists for operations specifically on a mastectomy scar; the concept is highly specific (scar at a prior mastectomy site, located on the chest/trunk). The closest available ICHI code is LAB.MK.AA, which covers the correct anatomical region and a plausible intervention class, but ICHI does not capture either the scar-specific nature or the mastectomy-scar context. |
| 767574004 (Operation on parathyroid gland during thyroidectomy) | is related to | EBB.JK.AA (Complete parathyroidectomy) | ICHI has a well-developed parathyroid block (BlockL5-EBB) but no code specifically capturing incidental or intentional parathyroid operations performed in the context of a thyroidectomy procedure. The SNOMED concept's defining feature is the surgical context (during thyroidectomy) rather than a specific parathyroid action, so no single ICHI code is equivalent; EBB.JK.AA is related but does not capture the procedural context or the range of possible parathyroid actions implied by the SNOMED concept. |
| 427545004 (Operation on sentinel lymph node) | is related to | DFA.JK.AA (Total excision of lymph node, not elsewhere classified) | ICHI has no concept of "sentinel" lymph node as a distinct anatomical or procedural target; the sentinel node is defined by its functional role in staging rather than its fixed anatomical location. The closest available code is DFA.JK.AA (total excision of lymph node, not elsewhere classified), but this is only one of many possible procedures that could be performed on a sentinel node, making this a relational rather than equivalent match. |
| 233000004 (Operation on systemic venous pathway) | is related to | HAZ.LI.AA (Atrial baffle procedure) | "Systemic venous pathway" in congenital cardiac surgery refers to the intra-atrial route created or revised by Mustard/Senning-type baffle procedures, which aligns with HAZ.LI.AA; however, the SNOMED concept is broader (any operation on the systemic venous pathway) and HAZ.LI.AA specifically encodes the baffle creation, making this a related but inexact match. |
| 78268008 (Operation on trabeculae carneae cordis) | is related to | BlockL4-HFA (Interventions on endocardium, pericardium, myocardium) | ICHI contains no code or block specifically for the trabeculae carneae cordis; these are muscular ridges on the inner ventricular wall covered by endocardium and composed of myocardium, so BlockL4-HFA "Interventions on endocardium, pericardium, myocardium" is the closest structural grouping. The match is relatedto rather than wider because the ICHI block covers three distinct cardiac structures well beyond the trabeculae, and the anatomical specificity is not preserved. |
| 307543000 (Operation on transposed parathyroid gland) | is related to | EBB.KD.AA (Transplant of parathyroid gland) | "Transposed parathyroid gland" refers to a gland that has already been autotransplanted to an ectopic site; operating on it is related to transplantation procedures but ICHI has no specific code for intervention on a previously transposed gland. EBB.KD.AA (transplant) is the closest available code in the parathyroid block, but the SNOMED concept covers the full range of operations on such a gland rather than the transplant act itself. |
| 175987009 (Operations along nephrostomy track) | is related to | NAA.LI.AE (Percutaneous nephrostomy) | ICHI does not have a code specifically for operations performed along an established nephrostomy track (e.g., PCNL, tract dilation, stone extraction via the tract); NAA.LI.AE is related as it describes the same percutaneous renal access route, but it refers to creation of the nephrostomy itself rather than subsequent operations through the track. |
| 45009000 (Operative procedure on elbow) | is related to | BlockL5-MEJ (Interventions on elbow joint) | ICHI does not have a single top-level block for all elbow structures; elbow-related interventions are split across sibling blocks (BlockL5-MEC for elbow cartilage and BlockL5-MEJ for elbow joint). BlockL5-MEJ is chosen as the closest partial match since it covers the broadest set of elbow-specific operative codes, but it excludes elbow cartilage. |
| 6240004 (Operative procedure on knee) | is related to | BlockL4-MMC (Interventions on musculoskeletal structures of knee) | ICHI has no dedicated topographical "Interventions on knee" block; BlockL4-MMC covers musculoskeletal structures of the knee (cartilage, meniscus, joint, ligament, patella, tendon) and is the broadest knee-specific grouping available. It is marked relatedto because it is limited to musculoskeletal structures and does not cover vascular, neural, or skin procedures on the knee. |
| 81095006 (Operative procedure on the pelvis and hip) | is related to | BlockL4-MKB (Interventions on musculoskeletal structures of pelvic region) | ICHI separates pelvic region (BlockL4-MKB) and hip (BlockL4-MLB / BlockL5-MLJ) into distinct blocks with no single block covering both together as the SNOMED concept does; BlockL4-MKB is chosen as the closest partial match. |
| 24112000 (Operative procedure on wrist) | is related to | BlockL5-MFJ (Interventions on wrist joint) | ICHI's closest structural match is the block "Interventions on wrist joint," but this covers only the joint itself, whereas the SNOMED concept "Operative procedure on wrist" encompasses all wrist structures (bones, tendons, ligaments, vessels, nerves). |
| 395067002 (Optimization of drug dosage) | is related to | UAC.AA.ZZ (Assessment of medications) | ICHI has no specific code for drug dosage optimization or titration; "Assessment of medications" (UAC.AA.ZZ), sitting within the "Interventions on medicaments" block, is the closest related activity — optimizing dosage involves systematic assessment of medication appropriateness and effect. |
| 713838004 (Optimization of medication) | is related to | UAC.AA.ZZ (Assessment of medications) | "Optimization of medication" is a broader concept than dosage alone (covers choice, timing, adherence, interactions), and ICHI's "Assessment of medications" (UAC.AA.ZZ) within the medicaments block is the nearest available code; no ICHI code specifically captures medication optimization/reconciliation as a distinct intervention type. |
| 234662004 (Oral implant receptor site preparation) | is related to | KAE.DN.AC (Prosthetic dental implant) | ICHI codes the completed dental implant procedure (KAE.DN.AC) but has no distinct code for the preparatory receptor site drilling or osteotomy step; the SNOMED concept specifically refers to site preparation rather than implant placement itself, so the relationship is associative rather than equivalent. |
| 284010004 (Oral sedation) | is related to | PZA.DC.AC (Inhalational anaesthesia) | ICHI codes anaesthesia by administration route (inhalational, intravenous) but has no code specifically for orally administered sedative agents; inhalational anaesthesia is the closest structural analogue but is a different route and depth-of-effect. |
| 250480000 (Organism inhibition test) | is related to | XG50T0 (Antimicrobial susceptibility testing) | Organism inhibition tests are the conceptual basis of antimicrobial susceptibility testing (e.g., disk diffusion, MIC assays), but the SNOMED term is broader; XG50T0 is specifically framed as antimicrobial susceptibility testing, making a true equivalence imprecise. |
| 250476005 (Organism killing test) | is related to | XG50T0 (Antimicrobial susceptibility testing) | An organism killing test (such as a minimum bactericidal concentration test) overlaps with antimicrobial susceptibility testing but is a specific subtype focused on bactericidal rather than bacteriostatic activity; XG50T0 is the closest available ICHI concept but the match is approximate. |
| 252401007 (Organism typing) | is related to | XG6201 (Genus and species identification of bacteria and fungi) | Organism typing (e.g. phage typing, serotyping, genotyping) characterises a microorganism beyond basic identification, while XG6201 covers genus/species identification — a related but narrower operation; no ICHI code for strain-level or subtype characterisation was found. |
| 16177004 (Orthodontic procedure) | is related to | KAE.SM.AC (Management of external appliance of tooth) | "Orthodontic procedure" is a broad SNOMED grouper spanning multiple intervention types; KAE.SM.AC represents the most typical defining orthodontic activity but is only one component of the broader concept. |
| 239369000 (Orthognathic surgery on radiographs) | is related to | MAG.BA.BA (X-ray of mandible) | The SNOMED concept describes radiograph-based analysis for orthognathic surgical planning, while MAG.BA.BA captures radiographic imaging of the mandible as an intervention; the concepts are related but the SNOMED concept is a planning activity, not simply an imaging procedure. |
| 243205004 (Orthoptic occlusion treatment) | is related to | BTB.PH.ZZ (Training of seeing functions) | Orthoptic occlusion treatment (patching the non-amblyopic eye) is a structured rehabilitative visual intervention; BTB.PH.ZZ captures the rehabilitative training-oriented nature but is significantly broader and does not specify the occlusion modality or amblyopia context. |
| 14490000 (Orthotic device construction and fitting) | is related to | PZX.DP.AH (Installation of assistive product to body site, not elsewhere classified) | PZX.DP.AH captures the fitting/installation aspect of orthotic provision to an unspecified body site, but does not include the construction/fabrication component integral to the SNOMED concept; no single ICHI code covers both manufacturing and fitting together. |
| 412857008 (Osmolality urine / serum ratio measurement) | is related to | XG0NB5 (Urine chemistry) | The urine-to-serum osmolality ratio is a derived calculation requiring both urine and serum osmolality results; XG0NB5 is related but only partially covers this concept since the serum component is excluded, and ICHI has no code for ratio calculations. |
| 104432001 (Osmolar gap measurement, urine) | is related to | XG0NB5 (Urine chemistry) | Urine osmolar gap is a derived index used to assess urinary ammonium excretion; XG0NB5 is the closest available code but is far broader, and ICHI contains no code for gap or calculated index measurements. |
| 73997003 (Osteopathic manipulation to move tissue fluids) | is related to | MRJ.PA.AH (Manipulation of joint of unspecified site) | ICHI has no code for osteopathic manipulation or for manipulation specifically intended to move tissue fluids; MRJ.PA.AH is the closest residual manipulation category but does not capture the osteopathic philosophy or tissue-fluid purpose. |
| 416689004 (Osteopathic manipulation, active method) | is related to | MRJ.PA.AH (Manipulation of joint of unspecified site) | ICHI has no osteopathic-specific manipulation code nor any means code distinguishing active versus passive technique; MRJ.PA.AH captures the general concept but does not reflect the osteopathic doctrine or active-method specificity. |
| 417665003 (Osteopathic manipulation, myofascial release) | is related to | MRS.PD.ZZ (Stretch of soft tissue of unspecified site) | Myofascial release is primarily a sustained loading/stretching technique applied to fascia and muscle rather than to a joint, making "Stretch of soft tissue" a closer semantic fit than joint manipulation; however, ICHI does not represent the manual/osteopathic nature of the technique. |
| 182549007 (Osteopathy) | is related to | MZZ.ZY.ZY (Other specified interventions on the musculoskeletal system) | ICHI has no dedicated code for osteopathy as a discipline; the term covers a broad system of care rather than a single intervention type. MZZ.ZY.ZY is the closest residual category but is an imprecise placeholder. |
| 35269008 (Osteoplasty) | is related to | MRB.ML.AA (Bone graft of unspecified site) | "Osteoplasty" is a general concept for surgical reshaping or reconstruction of bone at any site; MRB.ML.AA covers bone graft at unspecified site, but osteoplasty also encompasses reshaping without grafting, so no single ICHI code covers the full breadth of the SNOMED concept. |
| 391027005 (Osteoporosis - falls prevention) | is related to | VCC.PM.ZZ (Education to influence home safety behaviours) | Osteoporosis-specific falls prevention aligns most closely with education to influence home safety behaviours; however, ICHI has no disease-specific falls prevention code and does not capture the osteoporosis context. |
| 391026001 (Osteoporosis exercise education) | is related to | HTM.PM.ZZ (Education about exercise tolerance) | HTM.PM.ZZ is the closest ICHI code addressing exercise education, but it is framed around cardiovascular/physiological exercise tolerance rather than musculoskeletal exercise as a bone-strengthening strategy in osteoporosis. |
| 315338002 (Osteotomy of bone of upper extremity) | is related to | MRB.FA.AA (Osteotomy of bone of unspecified site) | ICHI has site-specific osteotomy codes (shoulder, humerus, forearm, hand) but no aggregate code covering the upper extremity as a whole; MRB.FA.AA (unspecified site) is the closest catch-all but implies anatomical uncertainty rather than an intentionally generic upper-extremity scope. |
| 284038007 (Oxygen supply failure monitoring) | is related to | JTB.AI.ZZ (Monitoring of respiration function) | No ICHI code exists for monitoring oxygen delivery equipment or supply failure alarms; JTB.AI.ZZ covers physiological monitoring of respiratory function, which is contextually related but does not capture the equipment-safety surveillance nature of this concept. |
| 314604005 (Palliative course of deep X-ray therapy) | is related to | PZA.GA.BA (Total body irradiation) | ICHI encodes radiotherapy as destruction-by-radiotherapy against specific body targets but has no generic "external beam radiotherapy" or "palliative radiotherapy" code, and PZA.GA.BA implies a different modality (TBI). The relationship is only thematic. |
| 363253006 (Paracentesis of central nervous system structure) | is related to | ABG.JB.AE (Drainage of spinal canal) | "Paracentesis of CNS structure" is a high-level grouper covering drainage from any CNS site; ABG.JB.AE represents the most commonly performed CNS paracentesis (lumbar/cisternal CSF drainage) but the concept also encompasses intracranial drainage and spinal meningeal drainage. |
| 363254000 (Paracentesis of endocrine organ) | is related to | EBA.JB.AE (Aspiration of thyroid gland) | "Paracentesis of endocrine organ" is a broad SNOMED grouper covering aspiration of any endocrine gland; EBA.JB.AE represents the most common clinical instance, but ICHI has separate codes per specific gland so no single code adequately represents the full scope. |
| 4114003 (Parenteral chemotherapy for malignant neoplasm) | is related to | PZA.DB.AF (Administering pharmacotherapy, percutaneous transluminal) | ICHI has no dedicated "chemotherapy" or "antineoplastic" code; the closest structural match is PZA.DB.AF (pharmacotherapy delivered percutaneously transluminal, i.e. intravenous route), which captures the systemic parenteral delivery of a drug but is generic to any pharmacotherapy and does not encode the oncological indication or the malignant-neoplasm target. |
| 726007 (Pathology consultation, comprehensive, records and specimen with report) | is related to | XG30Q5 (Histopathology) | ICHI XG30Q5 covers the histopathological examination of a specimen, which is the core analytical component of a comprehensive pathology consultation with specimen, but it does not capture the record review, consultation service framing, or report generation dimensions. No ICHI code for pathology consultation as a service exists; this extension code is the closest related concept. |
| 41819004 (Patient discharge, deceased, donation of body) | is related to | PZA.TH.ZZ (Post mortem care) | PZA.TH.ZZ covers care of a deceased person's body after death, which is related to the handling involved in a discharge for body donation, but ICHI does not have a specific code for body donation or the administrative discharge of a deceased donor; post mortem care is the closest available concept. |
| 372919008 (Patient education based on identified need) | is related to | PZB.TB.ZZ (Individualised planning) | ICHI contains hundreds of "Education about…" codes but all are anchored to a specific body function or activity domain (e.g. pain, memory, mobility); there is no generic "patient education based on assessed need" code. "Individualised planning" (PZB.TB.ZZ) is the closest whole-person administrative-clinical code that captures the notion of tailoring an intervention plan to an identified need, but it does not specifically denote education delivery, making this a related rather than equivalent match. |
| 396071005 (Patient education regarding Patient Bill of Rights) | is related to | SXK.PM.ZZ (Education about enjoying human rights) | A Patient Bill of Rights is a formal document granting specific legal and procedural rights to patients in a healthcare context, which is semantically narrower and more specific than the ICHI concept of enjoying human rights broadly (a community/civic life domain). No ICHI code targets patient rights or healthcare rights specifically, making this the closest available match by subject matter without being semantically equivalent. |
| 183340002 (Patient higher education) | is related to | STG.PM.ZZ (Education about engaging in higher education) | The SNOMED concept refers to a patient participating in higher education (e.g., university), while the ICHI code describes a health intervention that provides education to someone about engaging in higher education — these share the subject (higher education) but differ in the nature of the act (participating vs. being educated about participating). |
| 370844008 (Patient Self-Determination Act education) | is related to | UEJ.PM.ZZ (Education about aspects of legal services, systems and policies) | The Patient Self-Determination Act is a US federal law, and educating patients about their rights under it is most accurately framed as education about legal services, systems, and policies (UEJ.PM.ZZ) rather than a clinical intervention; no ICHI code captures the specific advance-directive or healthcare-decision-making context of the SNOMED concept. |
| 410076000 (Patient transfer education) | is related to | SHG.PM.ZZ (Education about transferring oneself) | SHG.PM.ZZ is the closest available ICHI code for education related to patient transfer, but it specifically addresses teaching a patient how to transfer themselves (a rehabilitation/functional activity), whereas the SNOMED concept more likely refers to educating a patient or family about the logistics of an inter-facility or intra-facility transfer. |
| 410077009 (Patient transfer management) | is related to | PZB.TD.ZZ (Case coordination) | Managing a patient transfer between care settings is a care coordination activity; PZB.TD.ZZ (Case coordination) is the closest ICHI concept covering coordination of the patient's care and service pathway, though it is not an exact match for transfer management specifically. |
| 252370006 (PCR for genomic fingerprinting) | is related to | XG4U02 (Viral nucleic acid amplification test) | XG4U02 covers viral nucleic acid amplification (PCR being the primary method), but PCR for genomic fingerprinting is a strain-typing or epidemiological technique applied to microbial genomes — not a standard viral detection test — so the semantic overlap is only partial and the codes are related rather than equivalent or hierarchically aligned. |
| 399177007 (PCR test for meningococcus) | is related to | XG4U02 (Viral nucleic acid amplification test) | ICHI has no code for meningococcus (Neisseria meningitidis) PCR or any bacterial nucleic acid amplification test; XG4U02 (viral NAAT) is the closest structural analogue in the Essential Laboratory Tests block but is semantically misaligned — meningococcus is a bacterium, not a virus — making this only a related rather than approximate match. |
| 399298004 (PCR test for Toxoplasma) | is related to | XG4U02 (Viral nucleic acid amplification test) | XG4U02 covers nucleic acid amplification tests but is scoped to viral organisms, whereas Toxoplasma gondii is a protozoan parasite — no ICHI code for parasitic nucleic acid testing exists in the classification. The code is related but not equivalent given the taxonomic mismatch. |
| 229234009 (Pelvic control work) | is related to | MU2.PH.ZZ (Training of muscle functions, not elsewhere classified) | "Pelvic control work" is a physiotherapy exercise targeting neuromuscular control of pelvic musculature; MU2.PH.ZZ is the closest match in the rehabilitation axis but does not capture pelvic specificity. |
| 24848001 (Pelvic echography) | is related to | NMS.BA.BJ (Ultrasound of female genital tract, not elsewhere classified) | Pelvic echography covers both male and female pelvic structures, but no single ICHI code covers a generic pelvic ultrasound; NMS.BA.BJ is the closest pelvic-specific ultrasound code available. |
| 410491006 (Penalization therapy) | is related to | BTB.PH.ZZ (Training of seeing functions) | Penalization therapy (atropine or optical blurring of the better eye for amblyopia) is a functional visual rehabilitation; BTB.PH.ZZ is the closest conceptual match but does not encode the pharmacological/optical penalization mechanism. |
| 783191000 (Percussion vibrator method) | is related to | JTB.JB.ZZ (Postural drainage) | The percussion vibrator method is a chest physiotherapy technique combining mechanical percussion/vibration with positioning; postural drainage is closely related but does not capture the percussion-vibration device aspect. |
| 240289007 (Percutaneous aspiration of fetal lesion) | is related to | NMR.AD.AD (Biopsy of fetal structures) | NMR.AD.AD is the closest available code for sampling of a fetal structure, but biopsy denotes tissue sampling rather than fluid/cyst aspiration. |
| 240292006 (Percutaneous aspiration of fetal pericardial effusion) | is related to | HFF.JB.AE (Pericardiocentesis) | HFF.JB.AE describes percutaneous aspiration of the pericardial space, matching the action and target anatomy, but ICHI does not distinguish fetal procedures. |
| 240291004 (Percutaneous aspiration of fetal pleural effusion) | is related to | JCB.JB.AE (Percutaneous drainage of pleural cavity) | JCB.JB.AE captures the percutaneous approach and pleural cavity target but ICHI has no fetal-specific pleural drainage code. |
| 1217259002 (Percutaneous cryoablation of lesion of adrenal gland) | is related to | BlockL5-EBC (Interventions on adrenal gland) | ICHI contains no percutaneous destruction category for the adrenal gland; the parent block is the best available match, covering the correct anatomical target but without action or approach specificity. |
| 277516000 (Percutaneous embolization of arteriovenous fistula) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | ICHI has no specific code for embolization of an AV fistula; "management" is broader than deliberate occlusion/embolization. |
| 431543008 (Percutaneous embolization of dialysis fistula using fluoroscopic guidance) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | A dialysis AV fistula is a type of arteriovenous shunt; ICHI does not encode the deliberate occlusion intent or fluoroscopic guidance. |
| 240942001 (Percutaneous endovascular obliteration) | is related to | IZA.LA.AF (Endovascular occlusion of artery, not elsewhere classified) | ICHI has no generic "endovascular obliteration" code; SNOMED does not specify vessel or arterial/venous, while the ICHI NEC code commits to artery. |
| 439530005 (Percutaneous intradiscal annuloplasty using fluoroscopic guidance) | is related to | MBV.GA.AE (Percutaneous destruction of intervertebral disc, not elsewhere classified) | ICHI has no annuloplasty code; closest captures percutaneous disc target but frames the action as destruction rather than thermal remodelling/repair. |
| 431255003 (Percutaneous mechanical thrombectomy of artery of upper limb using fluoroscopic guidance with contrast) | is related to | IZA.JE.AF (Endovascular extraction of obstruction of artery, not elsewhere classified) | No upper-limb-specific endovascular extraction code exists; the chosen NEC code captures action and approach but loses anatomical specificity. |
| 431607007 (Percutaneous mechanical thrombectomy of dialysis fistula using fluoroscopic guidance) | is related to | IZA.JE.AF (Endovascular extraction of obstruction of artery, not elsewhere classified) | ICHI lacks a dialysis-fistula-specific declotting code; the target structure here is an AV fistula rather than a native artery. |
| 265556001 (Percutaneous needle puncture operation on kidney or renal pelvis) | is related to | NAA.JB.AE (Percutaneous drainage of kidney) | The SNOMED concept is broad (biopsy, aspiration, drainage, nephrostomy on kidney or renal pelvis) while the ICHI code commits to drainage of the kidney only. |
| 236158008 (Percutaneous puncture of kidney for upper tract urodynamics) | is related to | NAA.JB.AE (Percutaneous drainage of kidney) | ICHI has no urodynamics/Whitaker-test code; same access route but therapeutic drainage intent rather than diagnostic pressure measurement. |
| 708875000 (Percutaneous radiofrequency ablation of lesion of adrenal gland) | is related to | EBC.GA.BA (Destruction of lesion or tissue of adrenal gland by radiotherapy) | No percutaneous destruction code for adrenal gland exists; only destruction code available specifies radiotherapy as means rather than RFA. |
| 313298003 (Percutaneous sacral nerve evaluation) | is related to | ACA.DL.AE (Percutaneous insertion of device into peripheral nerve) | The SNOMED concept describes the test/evaluation phase of sacral neuromodulation (percutaneous temporary electrode placement to assess sacral nerve response), but ICHI lacks a dedicated sacral nerve evaluation code; ACA.DL.AE captures the percutaneous device insertion into a peripheral nerve but does not encode the evaluative/diagnostic intent or the sacral nerve specificity. |
| 439941003 (Percutaneous stereotactic neurostimulation of spinal cord) | is related to | ABN.DN.AE (Percutaneous implantation of device into spinal nerve) | No ICHI code exists for stimulation or device implantation specifically targeting the spinal cord (ABA); ABN.DN.AE captures the percutaneous electrode/device implantation aspect of the procedure, but the target is the spinal nerve rather than the spinal cord itself, and the stimulation modality is not encoded, making this a related but non-equivalent match. |
| 276981004 (Percutaneous thrombectomy of intracranial vein) | is related to | IZE.JE.AA (Extraction of obstruction of blood vessel, not elsewhere classified) | The intracranial vein block (BlockL5-IAD) contains only imaging codes — no thrombectomy or obstruction-extraction code exists for the intracranial vein in ICHI. IZE.JE.AA is the only NEC obstruction-extraction code for blood vessels; it shares the action (thrombectomy/extraction of obstruction) but is far broader in target and does not specify the percutaneous approach. |
| 432947000 (Percutaneous thrombectomy using fluoroscopic guidance) | is related to | IZE.JE.AA (Extraction of obstruction of blood vessel, not elsewhere classified) | This SNOMED concept specifies approach (percutaneous fluoroscopic) but no anatomical site, whereas ICHI does not have a fluoroscopy-specific means code and all obstruction-extraction codes require a vessel site. IZE.JE.AA captures the action (extraction of obstruction from a blood vessel) but is both broader (no site specified) and does not encode the fluoroscopic guidance. |
| 240929001 (Percutaneous thrombolysis) | is related to | IZD.DB.AF (Thrombolysis of vein, not elsewhere classified) | ICHI has no site-unspecified thrombolysis code — all thrombolysis codes specify either an artery or a vein target. IZD.DB.AF captures the action (thrombolysis) and the percutaneous/endovascular means (AF) but restricts the target to vein NEC, whereas the SNOMED concept is site-agnostic and could apply to arteries or veins. |
| 431252000 (Percutaneous thrombolysis of dialysis fistula using fluoroscopic guidance) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | ICHI has no dedicated "thrombolysis of AV fistula/dialysis fistula" code; IZA.SN.AF (Management of arteriovenous shunt) is the closest structural match as a percutaneous intervention on an arteriovenous access, but the action (thrombolysis/DB) and fluoroscopic means are not captured, making this a related rather than equivalent match. |
| 431537006 (Percutaneous thrombolysis using fluoroscopic guidance) | is related to | IEA.DB.AF (Thrombolysis of abdominal or pelvic artery) | The SNOMED concept is a generic, unspecified percutaneous thrombolysis without a named target vessel, which ICHI cannot represent directly since every ICHI thrombolysis code requires a specific vessel target. No single ICHI code corresponds to "thrombolysis, target unspecified," so the abdominal artery code is only relationally appropriate and not a true match. |
| 441525007 (Percutaneous transluminal chemoembolization of artery) | is related to | IEA.LA.AF (Endovascular embolisation or occlusion of abdominal or pelvic artery) | TACE (transarterial chemoembolization) is most commonly performed on hepatic arteries arising from abdominal/pelvic vasculature, and IEA.LA.AF captures the endovascular embolisation component; however, ICHI has no code that includes the chemotherapy delivery aspect, and this code is also not percutaneous-transluminal-specific nor limited to a single arterial territory. |
| 707812007 (Percutaneous transluminal venous embolization of arteriovenous malformation) | is related to | IZE.LA.AA (Occlusion of blood vessel, not elsewhere classified) | ICHI has no code for embolization or occlusion of an arteriovenous malformation specifically via a venous approach; the closest structural match is IZE.LA.AA (occlusion of blood vessel NEC), which captures the occlusion/embolization action on a vessel but is anatomically non-specific and does not encode the AVM target or the percutaneous transluminal approach. |
| 76558009 (Periarterial sympathectomy) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | Periarterial sympathectomy (surgical stripping of sympathetic nerve fibers from the adventitia of an artery) has no dedicated ICHI code. ICHI codes for sympathetic nerve excision are anatomically stratified by spinal level and represent ganglionectomy/nerve trunk excision rather than periarterial denervation; the unspecified sympathetic nervous system code is the closest related entry. |
| 179828006 (Periarticular osteotomy for stabilization of joint) | is related to | MRB.FA.AA (Osteotomy of bone of unspecified site) | ICHI contains osteotomy codes organised by specific bone/site but none capture the concept of a periarticular osteotomy performed specifically for the purpose of joint stabilization. The unspecified-site osteotomy code is the closest available structural match, but lacks both the periarticular specificity and the stabilization intent. |
| 234680008 (Pericision of periodontal ligament) | is related to | KAG.FA.AC (Incision of gum) | Pericision is a circumferential incision severing the supracrestal periodontal ligament fibres around a tooth — ICHI has no code for the periodontal ligament itself as a target, and the nearest procedural code covers incision in the same perioral region (gingiva) but acts on a different tissue target. |
| 410249007 (Perineal care assessment) | is related to | PAW.AB.AH (Measurement of perineum) | ICHI does not have a dedicated "assessment of perineum" code; PAW.AB.AH (Measurement of perineum) is the closest code within the Interventions on perineum block, but it denotes physical measurement rather than the broader clinical assessment implied by the SNOMED concept, making it only a related match. |
| 133897009 (Perioperative care) | is related to | PZB.AA.ZZ (General health assessment) | ICHI has no concept for perioperative care as a whole-episode construct; "General health assessment" (PZB.AA.ZZ) is the closest functional equivalent covering assessment of the whole person, but it does not capture the full perioperative continuum (pre-, intra-, and post-operative care) nor any treatment/management components. |
| 736767005 (Perioperative care management) | is related to | PZB.TD.ZZ (Case coordination) | ICHI does not represent perioperative care management as a distinct intervention; "Case coordination" (PZB.TD.ZZ) reflects the organisational/management dimension of coordinating a person's care pathway most closely, but it is broader and does not imply a surgical context. |
| 278730005 (Periorbital incision) | is related to | BAM.FA.AA (Orbitotomy) | Orbitotomy (BAM.FA.AA) is the closest ICHI code — it is an incision into the orbital region — but it specifically refers to incision of the orbit itself rather than the periorbital soft tissues or skin; adjacent codes such as incision of eyelid (BAA.FA.AA) are more specific to eyelid only, so neither is a close semantic match. |
| 66402002 (Peritoneal dialysis education) | is related to | NT2.PM.ZZ (Education about urinary functions, not elsewhere classified) | ICHI has no code specifically for education about peritoneal dialysis or dialysis procedures; NT2.PM.ZZ is the closest available concept, but it targets urinary function broadly rather than the dialysis procedure specifically. |
| 410219005 (Personal care management) | is related to | PZB.TB.ZZ (Individualised planning) | PZB.TB.ZZ is the closest ICHI concept for coordinating and managing a person's care needs holistically, but "personal care management" in SNOMED refers more broadly to self-management or care coordination of daily personal care activities, which does not map precisely to a planning-specific code. |
| 1255166007 (Pescovegetarian diet) | is related to | VEA.TI.ZZ (Prescription for eating behaviours) | ICHI does not classify specific diet types as interventions; the closest concept is prescribing eating behaviours, which could encompass recommending a pescovegetarian dietary pattern, but the match is only loosely related as ICHI codes the action (prescribing) rather than the diet itself. |
| 121251000 (Pesticide identification) | is related to | UAB.AA.ZZ (Assessment of food) | ICHI has no code for pesticide identification as an analytical or laboratory procedure; UAB.AA.ZZ is the closest available concept in the food/environment domain, but it is only distantly related as it covers general food assessment rather than chemical substance identification. |
| 428931000124102 (Pharmacogenetic consultation) | is related to | PYA.PP.ZZ (Genetic counselling) | Pharmacogenetic consultation is a specialised, drug-response-focused genomics consultation that differs from general genetic counselling in scope and purpose; it is related to PYA.PP.ZZ as both involve genomics-informed clinical communication, but ICHI does not have a pharmacogenetics-specific code. |
| 398002006 (Physiatric manipulation of muscle structures) | is related to | MRM.PD.ZZ (Stretch of muscle of unspecified site) | ICHI has no direct "physiatric manipulation of muscle" code; the closest available concept in the musculoskeletal function domain is MRM.PD.ZZ (stretch of muscle, unspecified site), which captures rehabilitative manual intervention on muscle tissue, but the match is only approximate since the SNOMED concept is broader and encompasses various physiatric manual techniques beyond stretching. |
| 399078000 (Physiatric manipulation of nuchal region) | is related to | MAJ.PA.AH (Manipulation of head or neck joint) | There is no ICHI code for soft tissue or muscle manipulation of the nuchal (posterior neck) region specifically; MAJ.PA.AH (manipulation of head or neck joint) is the closest anatomical and procedural match in ICHI, but it targets joints rather than soft tissue/muscle structures, making this a related rather than equivalent mapping. |
| 410183009 (Physical examination education) | is related to | PZX.AE.AH (Physical examination of a body site, not elsewhere classified) | ICHI has no code representing education about how to perform physical examinations; "physical examination education" in SNOMED denotes teaching of clinical examination skills, a concept not represented in ICHI's classification of health interventions. PZX.AE.AH is the closest structural relative but covers the act of examining rather than teaching about it, making this only a related mapping. |
| 53185004 (Physical examination under general anesthesia) | is related to | PZA.AE.AH (Physical examination of whole body) | ICHI has no code specifically combining physical examination with general anesthesia as a single procedure concept; PZA.AE.AH captures the examination component of the SNOMED concept but omits the defining qualifier (performed under general anesthesia), making this a related-but-inexact match. |
| 410087008 (Physical rehabilitation therapy assessment) | is related to | PZB.AA.ZZ (General health assessment) | ICHI does not have a dedicated code for rehabilitation-specific assessment; PZB.AA.ZZ (General health assessment, whole person) is the broadest available assessment category and is thematically related, but it does not carry the rehabilitation/physiotherapy context of the SNOMED concept. |
| 410089006 (Physical rehabilitation therapy management) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI does not have a code specifically for physical rehabilitation therapy management as a clinical management category; PZB.ZY.ZY is the closest available residual category under the "whole person" block for health management encounters not classifiable elsewhere. |
| 410142006 (Physician contact management) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | "Physician contact management" in SNOMED refers to the management activities carried out during a physician encounter, a concept closer to care coordination or health management than a specific clinical procedure; PZB.ZY.ZY captures residual health management encounters but does not specifically encode a physician contact or management action. |
| 385779005 (Physician status report) | is related to | PZB.AA.ZZ (General health assessment) | A physician status report is a clinical summary document produced after assessing a patient's health status, which aligns most closely with a general health assessment in ICHI. However, the ICHI code captures the assessment act itself rather than the reporting/documentation output, making this a related rather than equivalent match. |
| 183136004 (Physiological locomotion assistance) | is related to | UAE.DP.ZZ (Installation of assistive products for personal indoor and outdoor mobility and transportation) | "Physiological locomotion assistance" refers to providing assistive products (e.g., walking frames, crutches, wheelchairs) to support ambulation; UAE.DP.ZZ covers installation of exactly such assistive products for personal mobility, making it the closest ICHI match, though the SNOMED concept may encompass the broader intervention episode rather than just the installation act. |
| 113046009 (Pinworm slide) | is related to | PZX.AH.XG (Specimen collection of faeces) | A pinworm (Enterobius) slide preparation involves collecting a perianal tape specimen or faecal material for microscopic examination of eggs/parasites. ICHI has no dedicated code, so PZX.AH.XG is the closest related intervention, though it does not capture the perianal tape-test technique or the microscopic examination component. |
| 301882004 (Placement of aortic cross clamp) | is related to | HIF.LA.AA (Partial occlusion of ascending aorta) | An aortic cross clamp achieves temporary complete occlusion of the ascending aorta during cardiac surgery, whereas HIF.LA.AA encodes partial occlusion. No ICHI code exists for complete cross-clamping of the aorta, making HIF.LA.AA the closest structural match despite the partial/complete distinction. |
| 225290005 (Planning the day) | is related to | SDG.RA.ZZ (Performing the task of managing daily routine) | ICHI has no dedicated code for "planning the day" as a clinician-performed intervention; SDG.RA.ZZ targets carrying out daily routine and involves managing it, making it the closest related concept, but its action axis (RA = performing the task for the person) differs from the planning orientation of the SNOMED concept. |
| 250313005 (Platelet distribution width measurement) | is related to | XG9YD3 (Platelet count) | ICHI has no specific code for platelet distribution width (PDW), which is a platelet morphology index distinct from platelet count. XG9YD3 (Platelet count) is the closest platelet-specific laboratory test in ICHI, but it measures a different parameter. |
| 103847006 (Platelet factor 4 assay) | is related to | XG9YD3 (Platelet count) | ICHI contains no code for platelet factor 4 (PF4) assay or any platelet-specific protein/chemokine assay; XG9YD3 (Platelet count) is the only platelet-specific laboratory test available and is related in subject matter only. |
| 250314004 (Platelet hematocrit measurement) | is related to | XG9YD3 (Platelet count) | Platelet hematocrit (the proportion of blood volume occupied by platelets) has no dedicated ICHI code; XG9YD3 (Platelet count) is the only platelet-specific laboratory test in ICHI and is related but methodologically distinct. |
| 70268007 (Platelet survival study) | is related to | DJA.BA.BE (Spleen scan or function study) | Platelet survival studies use radiolabelled platelets to measure platelet lifespan and are closely related to splenic sequestration assessment; ICHI has no dedicated radiolabelled-platelet scan code, and DJA.BA.BE is the closest available code encompassing isotope-based haematopoietic/splenic function studies. |
| 232886004 (Plication annuloplasty of atrioventricular valve) | is related to | HDF.ML.AA (Reconstruction of mitral valve or subvalvar apparatus) | Plication annuloplasty of an AV valve is a valve repair technique that reshapes the valve annulus by suturing/folding; however ICHI does not have a dedicated annuloplasty code, and the candidate covers only the mitral valve whereas the SNOMED concept applies to any AV valve (mitral or tricuspid). |
| 233032004 (Plication of left atrial appendage) | is related to | HAA.LA.AA (Occlusion of left atrial appendage) | ICHI does not have a specific plication code for the left atrium or its appendage; the existing left atrium appendage codes (HAA.LA.AA series) cover occlusion, which is functionally the most common clinical purpose of appendage plication (thrombus prevention), but plication by suture folding is procedurally distinct from device-based or ligation occlusion. |
| 233031006 (Plication of left atrial wall) | is related to | HAB.LL.AA (Plication of right atrium) | ICHI encodes plication (action code LL) only for the right atrium (HAB.LL.AA), not the left atrial wall; no left atrium plication code exists, and the left atrium block (BlockL5-HAA) contains no plication entry, making the right atrium plication code the closest structural analog but referencing a different chamber. |
| 68141001 (Plication of mesentery) | is related to | KMA.MK.AA (Repair of peritoneum) | ICHI has no code for mesentery plication or mesenteric repair as a distinct intervention; the closest available code is "Repair of peritoneum" (KMA.MK.AA) since the mesentery is a peritoneal fold, but this is only a related concept — the targets differ and plication is a more specific technique than generic repair. |
| 40559003 (Plication of round ligament) | is related to | NME.LC.AA (Uterine suspension) | Plication (shortening) of the round ligament of the uterus is a classic technique for achieving uterine suspension/retroversion correction, which is exactly what NME.LC.AA represents; however, ICHI does not have a code targeting the round ligament specifically, and the SNOMED concept does not mention the suspensory intent explicitly, making this a related rather than equivalent match. |
| 233450002 (Plication of vein) | is related to | IZD.MK.AA (Repair of vein, not elsewhere classified) | ICHI has plication codes only for the superior and inferior vena cava — there is no generic "plication of vein" code. The closest available code covering any unspecified vein is IZD.MK.AA (Repair of vein, NEC), which captures the structural repair intent of plication but is semantically broader and uses a different action axis (MK = repair rather than LL = plication). |
| 26163003 (Plication of ventricle of heart) | is related to | HBA.LL.AA (Surgical left ventricular reduction) | No explicit "plication of ventricle" code exists in ICHI; surgical left ventricular reduction (HBA.LL.AA — the Batista-type procedure) is the closest analogue, as ventricular reduction surgery often involves plication of the ventricular wall. However, it specifies only the left ventricle and uses LL (reduction) rather than a pure plication action, making it a related but not equivalent match. |
| 55620009 (Plombage of lung) | is related to | JBF.LL.AE (Artificial pneumothorax for collapse of lung) | Plombage is a now-obsolete collapse therapy technique where inert material is packed into the extrapleural space to compress a lung, conceptually related to artificial pneumothorax (JBF.LL.AE) in that both aim to collapse lung tissue — but the mechanisms differ substantially (extrapleural packing vs. pleural air injection), and ICHI has no dedicated plombage code. |
| 409613001 (Polymerase chain reaction for Bacillus anthracis) | is related to | XG4U02 (Viral nucleic acid amplification test) | PCR for Bacillus anthracis is a nucleic acid amplification test (NAAT) applied to a bacterium, not a virus; XG4U02 is specifically scoped to viral targets, making it a related but not equivalent match. No bacterial NAAT or Bacillus anthracis-specific ICHI code exists. |
| 419103004 (Polymerase chain reaction test for Leishmania) | is related to | XG16H2 (rK39 antigen test for visceral leishmaniasis) | ICHI's essential laboratory tests section contains no PCR or nucleic acid amplification test for Leishmania specifically; the closest Leishmania-specific test in ICHI is XG16H2, which uses an immunochromatographic antigen method (rK39), not PCR, and also covers only visceral leishmaniasis rather than all Leishmania species. |
| 36027007 (Porphyrin measurement, 24-hours, feces) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI does not classify analyte-specific biochemical measurement of fecal porphyrins; the closest code is faeces specimen collection, which captures only the pre-analytic step and omits the 24-hour collection protocol and the porphyrin measurement itself. |
| 104885003 (Porphyrin measurement, fecal, qualitative or semi-quantitative) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI has no code for qualitative or semi-quantitative fecal porphyrin analysis; specimen collection of faeces is the only feces-specific code available, covering only the collection step and not the analytic measurement method. |
| 89900006 (Porphyrin measurement, feces, quantitative) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI classifies feces specimen collection but has no dedicated code for quantitative porphyrin assay; the collection code is the only feces-specific entry and does not represent the measurement/assay component. |
| 233539003 (Portal venous system cannula insertion) | is related to | IEF.LH.AF (Percutaneous transluminal dilatation with insertion of device into portal vein and branches) | This is the only ICHI code in the portal vein block involving insertion of a device, but it couples dilatation with device insertion and specifies a percutaneous transluminal approach, whereas the SNOMED concept is a broader cannula insertion into the portal venous system not necessarily tied to transluminal dilatation. |
| 410222007 (Positioning therapy management) | is related to | PZA.LD.ZZ (Positioning of the whole body) | ICHI has no single code for "positioning therapy management" as a coordinated therapeutic programme; PZA.LD.ZZ covers positioning of the whole body as a physical act, but the SNOMED concept emphasises clinical management/coordination of positioning therapy, which is not directly captured in any single ICHI code. |
| 450436003 (Positron emission tomography with computed tomography) | is related to | PZA.BA.BG (Positron emission tomography of whole body) | ICHI does not have a dedicated PET-CT (combined) code; the whole-body PET code captures the PET component but omits the simultaneous CT acquisition that defines PET-CT as a distinct hybrid modality, making this a related but inexact mapping. |
| 79089001 (Post-fracture rehabilitation) | is related to | MTB.PH.ZZ (Training of joint mobility) | ICHI has no dedicated "post-fracture rehabilitation" code; rehabilitation after a fracture primarily targets restoration of joint mobility and movement function, making MTB.PH.ZZ (training of joint mobility, under the musculoskeletal system) the closest functional analog. However, fracture rehabilitation is a broader, multi-component program (mobility, muscle strength, ADL retraining), so the match is relatedto rather than equivalent. |
| 73964004 (Post-laryngectomy rehabilitation) | is related to | SFA.PH.ZZ (Training in speaking) | Post-laryngectomy rehabilitation is dominated by restoration of voice/speech communication (e.g., tracheoesophageal speech, electrolarynx training), which maps best to SFA.PH.ZZ (Training in speaking, under "Interventions on producing communication"). The SNOMED concept is broader — it may also include swallowing and stoma care — so the relationship is relatedto rather than equivalent. |
| 225326008 (Post-termination counseling) | is related to | NUE.RC.ZZ (Emotional support for pregnancy functions) | Post-termination counseling is primarily emotional and psychosocial support following a pregnancy termination; NUE.RC.ZZ (Emotional support for pregnancy functions, under "Interventions on functions related to pregnancy") is the closest ICHI code capturing this emotional/support dimension in the reproductive context. The SNOMED concept may also include contraceptive counseling and follow-up health advice, making the match relatedto rather than equivalent. |
| 409634008 (Post-vaccination precautions) | is related to | DTB.PN.ZZ (Advising about functions of the immunological system) | Post-vaccination precautions (e.g., advising on adverse reactions to watch for, activity restrictions, contraindications) are best represented in ICHI by DTB.PN.ZZ (Advising about functions of the immunological system), which is the advising/counselling action on the immunological target that receives the vaccine. The SNOMED concept is narrower in scope (specifically post-vaccination, not immunological advising in general), so the relationship is relatedto. |
| 252932000 (Postcoital urine test) | is related to | PZX.AH.XB (Specimen collection of urine) | The postcoital urine test involves collecting urine after orgasm and examining it microscopically for sperm to diagnose retrograde ejaculation; ICHI has no specific code for this procedure, and the closest available code captures only the specimen collection step without the diagnostic examination of sperm. The overall test purpose (reproductive/fertility assessment) is not reflected in this code. |
| 265723004 (Posterior attachment of correctional instrument to spine) | is related to | MBM.DN.AA (Implantation of device into lumbar spine) | ICHI has implantation of device codes per spinal level (lumbar MBM.DN.AA, cervical MBA.DN.AA) but no level-unspecified spinal instrumentation code; the SNOMED concept does not specify the vertebral level and refers specifically to the posterior approach with a correctional (e.g., scoliosis correction) instrument, making any single-level device implantation code only a partial match. |
| 108156003 (Posterior segment of eye excision) | is related to | BlockL5-BCA (Interventions on posterior segment structures of eyeball) | ICHI has no specific excision code for the posterior segment of the eye as a whole — the block BlockL5-BCA groups interventions on posterior segment structures, and while individual excision codes exist for sub-structures (retina, vitreous), none covers an unspecified excision of the posterior segment generically. The SNOMED concept is a broad grouping concept and the ICHI block is the best available structural match. |
| 311614000 (Pragmatic enhancement strategies) | is related to | SFA.PH.ZZ (Training in speaking) | Pragmatic enhancement strategies are therapeutic techniques used by speech-language pathologists to improve the communicative and social use of language, which relates most closely to training in speaking (SFA.PH.ZZ); however, ICHI does not have a code specific to pragmatic communication therapy, making this only a related match. |
| 406179007 (Premenstrual syndrome management) | is related to | NUB.AA.ZZ (Assessment of menstruation functions) | ICHI has no code specifically for premenstrual syndrome management; the menstruation functions block is the closest anatomical/functional territory, but "management" as a concept (implying ongoing treatment or care coordination) goes well beyond assessment, making this only a related match. |
| 168523002 (Preoperative course of radiotherapy) | is related to | LZZ.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue by radiotherapy, not elsewhere classified) | ICHI's radiotherapy codes are all anatomically specific destructions with no generic "course of radiotherapy" or "neoadjuvant radiotherapy" concept; the preoperative/neoadjuvant framing and the site-agnostic nature of the SNOMED concept have no direct ICHI equivalent, making any match only relationally approximate. |
| 8050000 (Preparation of detailed report for patient's disability including corrective recommendations) | is related to | PZB.AA.ZZ (General health assessment) | ICHI has no code specifically for producing a disability report with recommendations; "General health assessment" on the whole person is the closest functional equivalent, capturing the evaluative act directed at the whole person, but it does not encode the report-writing, disability framing, or corrective-recommendation components. |
| 427228005 (Preparation of discharge summary) | is related to | XG38D0 (Discharge planning) | ICHI's "Discharge planning" (XG38D0) covers the administrative/care-coordination activity around patient discharge, whereas the SNOMED concept specifically describes the act of writing a discharge summary document; the two are closely related but discharge planning is broader and not limited to documentation. |
| 225952006 (Preparation of patient for investigation) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI has no specific code for pre-investigation patient preparation (e.g., bowel prep, fasting instructions, consent); "Other health management encounter, not elsewhere classified" is the most appropriate residual category for this administrative/clinical preparatory encounter, but it is a very loose fit given the specificity of the SNOMED concept. |
| 22305001 (Preparation of workmen's compensation claim for occupational/industrial disease or condition) | is related to | UER.RB.ZZ (Practical support about labour and employment services, systems and policies) | ICHI has no code for preparing a workers' compensation claim specifically; UER.RB.ZZ is the closest available concept, as preparing a compensation claim is a practical support activity within the labour and employment domain; the match is only loosely related because ICHI targets system/policy-level interventions rather than individual claim documentation. |
| 1217195001 (Prescription of enteral nutrition feeding) | is related to | PZA.DA.AC (Intracavity administration of nutritional substance) | ICHI does not have a dedicated "prescription of enteral nutrition" code; PZA.DA.AC covers intracavity administration of a nutritional substance, the closest structural match to enteral nutrition, but it represents administering rather than prescribing the regimen. |
| 1217194002 (Prescription of parenteral nutrition feeding) | is related to | PZA.DA.AF (Intravenous administration of nutritional substance) | ICHI lacks a dedicated code for prescribing parenteral nutrition; PZA.DA.AF covers intravenous administration of a nutritional substance, the closest match to parenteral nutrition, but represents administering rather than prescribing the feeding regimen. |
| 67421001 (Prescription of service) | is related to | UEP.TI.ZZ (Referral to health provider) | "Prescription of service" refers to ordering or directing a patient toward a health service, which is closely related to ICHI's "Referral to health provider" (action TI = Prescription, target UEP = health services), but ICHI's code is framed as a referral rather than generic service prescription. |
| 55053003 (Prescription of therapeutic regimen) | is related to | PZB.TB.ZZ (Individualised planning) | No ICHI code directly represents prescribing a therapeutic regimen; "Individualised planning" is the closest concept, capturing formulation of a tailored treatment plan. The SNOMED concept emphasises the prescriptive act, while ICHI emphasises the planning process. |
| 428830000 (Pretransplant evaluation of kidney recipient) | is related to | PZB.AA.ZZ (General health assessment) | ICHI has no dedicated pretransplant recipient evaluation code; "General health assessment" is the closest available concept capturing a comprehensive clinical evaluation of a whole person. The SNOMED concept is substantially more specific (kidney recipient, pre-transplant context). |
| 275840002 (Preventing spread of infection) | is related to | UEP.VE.ZZ (Health care infection control measures concerning health services, systems and policies) | ICHI does not have a single person-agnostic "preventing spread of infection" code; UEP.VE.ZZ addresses health-care infection control at the organisational/policy level, related but at a different scope than the SNOMED concept's general clinical intent of preventing onward transmission. |
| 408933008 (Prevention of harmful pattern of substance use) | is related to | VA1.VB.ZZ (Awareness raising to influence substance-related and addictive behaviours, unspecified) | ICHI represents substance-use interventions as specific action types (education, counselling, awareness raising) rather than a single overarching "prevention" concept; VA1.VB.ZZ covers awareness raising across all substance types but the SNOMED concept encompasses a wider range of preventive strategies. |
| 238343003 (Previous chest wall incision - debridement) | is related to | LAB.JG.AA (Debridement of skin and subcutaneous cell tissue of trunk) | The key procedure is debridement of a previous chest wall incision site; ICHI's closest available code is debridement of skin and subcutaneous tissue of the trunk, which captures the debridement action and the trunk region but is broader than the chest-wall-specific incision site context. |
| 265139001 (Primary fixation of fragment of chondral cartilage of intra-articular fracture of bone) | is related to | MMC.MK.AA (Repair of cartilage of knee) | ICHI lacks a dedicated code for fixation of a chondral/osteochondral fragment; "Repair of cartilage of knee" is the closest structural repair concept, but it is knee-specific and does not express fragment fixation within an intra-articular fracture context. |
| 1172524007 (Primary obesity surgery endoluminal 2) | is related to | KBF.LI.AJ (Percutaneous endoscopic gastric bypass) | "Obesity surgery endoluminal 2" (POSE 2) is a specific endoscopic full-thickness plication technique performed through the mouth to reduce gastric volume and is not a gastric bypass. No ICHI code exists for endoscopic gastroplasty or gastric plication. |
| 179731003 (Primary prosthetic replacement of intra-articular ligament) | is related to | MML.ML.AA (Reconstruction of ligaments of knee) | ICHI has no dedicated code for prosthetic ligament replacement; functionally the closest is reconstruction of ligaments of knee (the most common site for intra-articular ligament prosthetic replacement such as ACL). However, the SNOMED concept is not knee-specific and covers prosthetic implantation rather than biological reconstruction, making this only a related approximation. |
| 441706006 (Primary reconstruction of lamina of cervical spine) | is related to | MBA.ML.AA (Bone graft to cervical spine) | ICHI has no laminoplasty or lamina-specific reconstruction code for the cervical spine; bone graft to cervical spine is the closest available code covering reconstructive interventions on the cervical vertebral column, but it implies a grafting procedure rather than lamina reconstruction specifically and does not capture the laminoplasty concept precisely. |
| 179788001 (Primary xenograft augmentation extra-articular ligament) | is related to | MML.ML.AA (Reconstruction of ligaments of knee) | The xenograft augmentation of an extra-articular ligament is a reconstructive/augmentation procedure on a ligament, and knee ligaments are the most common clinical site; however, ICHI has no code specific to xenograft material or extra-articular ligament augmentation as opposed to intra-articular reconstruction, and the code is site-specific to the knee rather than any ligament. |
| 225295000 (Prioritizing problems) | is related to | PZB.TB.ZZ (Individualised planning) | "Prioritizing problems" is a cognitive clinical activity — ordering a patient's problem list by urgency/importance — which falls within the scope of individualised care planning in ICHI; there is no more specific ICHI code for problem prioritisation, making this a related but approximate match rather than an equivalent one. |
| 710981001 (Prioritizing treatment regime) | is related to | PZB.TB.ZZ (Individualised planning) | Prioritising a treatment regimen is a clinical decision-making and planning activity directed at the whole person's care plan, which best fits the ICHI "Individualised planning" category; however, this ICHI code is broader and encompasses all types of personalised planning rather than specifically the ranking of treatment options. |
| 429535009 (Probing of fistula of perineum) | is related to | PAW.JB.AA (Drainage of perineum) | ICHI has no code specifically for probing/exploration of a perineal fistula, and the perineum block contains no examination or probing action. "Drainage of perineum" is the closest anatomically scoped procedure, but probing a fistula is a diagnostic/exploratory act rather than a drainage procedure, making this only a related concept. |
| 118808003 (Procedure on artery of thorax and abdomen) | is related to | BlockL4-IDA (Interventions on vessels of thorax) | ICHI splits thoracic arteries (BlockL4-IDA) and abdominal/pelvic arteries (BlockL4-IEA) into separate blocks with no single parent block spanning both; BlockL4-IDA captures only the thoracic half of the SNOMED concept, so no single ICHI code is semantically equivalent or truly wider — the mapping is relatedto at best. |
| 118799006 (Procedure on cardiac septum) | is related to | BlockL4-HAA (Interventions on heart, atrium) | ICHI has no single block representing the cardiac septum as a whole; instead, septal procedures are distributed across three separate blocks — BlockL5-HAD (atrial septum), BlockL5-HBD (ventricular septum), and BlockL5-HFB (atrioventricular septum) — none of which individually covers the full scope of "cardiac septum." The anatomical extension code XA81Z5 "Cardiac septum" exists but is not an assignable procedure code, making a clean mapping impossible; the concept is therefore relatedto the cardiac septum interventions scattered across the atrial/ventricular/atrioventricular septum blocks. |
| 118889009 (Procedure on carotid body) | is related to | EBE (Paraganglion) | ICHI classifies the carotid body under its target axis as a paraganglion (EBE) — an extension/axis code, not an assignable intervention code — and there is no dedicated procedural block or category for interventions on the carotid body specifically. EBE is the closest structural target match, but it is not an intervention code and covers all paraganglia, not just the carotid body. |
| 118711008 (Procedure on hip) | is related to | BlockL4-MLB (Interventions on musculoskeletal structures of thigh) | ICHI does not have a single unified "interventions on hip" block; hip-related content is split across BlockL4-MLB (thigh musculoskeletal structures, which contains the hip joint, hip cartilage, and thigh muscles as sub-blocks) and BlockL4-MKB (pelvic region). BlockL4-MLB is the closest parent container that includes the hip joint (BlockL5-MLJ) and hip cartilage (BlockL5-MLC) but also covers the thigh, making it a related-but-not-equivalent match for the broader SNOMED "procedure on hip." |
| 233482004 (Procedure on intraluminal device of arteriovenous fistula) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | ICHI has no code specifically for procedures on an intraluminal device within an arteriovenous fistula; IZA.SN.AF (Management of arteriovenous shunt) is the closest available term covering AV shunt-related interventions, but it does not distinguish device-specific procedures (e.g., thrombectomy, balloon angioplasty, or stent management within the fistula lumen) from general shunt management. |
| 118710009 (Procedure on lower extremity) | is related to | BlockL4-MQS (Interventions on musculoskeletal structures of lower limb, not elsewhere classified) | ICHI has no single block or code representing all procedures on the lower extremity as a whole — it distributes them across multiple body-region blocks (thigh, knee, lower leg, foot, vessels, skin). The best available anchor is BlockL4-MQS, but this covers only musculoskeletal NEC procedures and misses vascular, dermatological, and lymphatic interventions on the lower limb, making a true equivalence impossible; the SNOMED concept is a broad procedural grouper with no precise ICHI counterpart. |
| 371550000 (Procedure on neoplasm of eye proper) | is related to | BZZ.JI.AA (Local excision of lesion of eye, unspecified structure) | ICHI does not encode neoplasm-specific procedural groupers; the closest category is local excision of an eye lesion (which covers the main surgical approach to an ocular neoplasm), but the SNOMED concept is a broad grouper across all procedure types on any eye neoplasm. The structural match to "eye proper" (eyeball) is covered by the BZZ target axis, but the neoplasm dimension and procedural breadth cannot be captured in a single ICHI code. |
| 118778008 (Procedure on parotid duct) | is related to | KAM.MK.AA (Repair of salivary gland or duct) | ICHI has no dedicated parotid duct block or codes; parotid duct procedures fall under the broader salivary gland block (BlockL5-KAM), whose codes (e.g., KAM.FA.AA incision, KAM.LG.AA dilatation, KAM.MK.AA repair) include "or duct" in their titles but cover all major salivary gland ducts, not specifically the parotid duct. No single ICHI code maps cleanly — the relationship is approximate and context-dependent. |
| 609637006 (Procedure on pelvic region of trunk) | is related to | BlockL4-MKB (Interventions on musculoskeletal structures of pelvic region) | The SNOMED concept covers any procedure on the pelvic region of the trunk regardless of tissue type, while ICHI's BlockL4-MKB is restricted to musculoskeletal structures (bone and joint) of the pelvic region; other pelvic interventions (lymph nodes DFF, skin LAB, viscera) are scattered across separate ICHI blocks with no single overarching "pelvic region of trunk" grouper code available. |
| 371735007 (Procedure specific positioning) | is related to | PZX.LD.ZZ (Positioning of a part of the body, not elsewhere classified) | "Procedure specific positioning" in SNOMED refers to positioning a patient for a particular procedure (a preparatory/supporting act), whereas ICHI's PZX.LD.ZZ captures positioning of a body part as a therapeutic or rehabilitative intervention in its own right. The concepts are related but not semantically equivalent; PZX.LD.ZZ is the closest NEC option. |
| 386399006 (Program development) | is related to | PZB.TB.ZZ (Individualised planning) | ICHI does not have a code specifically for health program development as an organisational or population-level activity; PZB.TB.ZZ (Individualised planning, under "Interventions on whole person") is the closest structural analog covering planning as a health intervention, but it is oriented toward individual care planning rather than program design at a service or population level. |
| 710950005 (Progressive mobility) | is related to | MTB.PH.ZZ (Training of joint mobility) | ICHI has no code for "progressive mobility" as a stepwise rehabilitation protocol; MTB.PH.ZZ (Training of joint mobility) captures the rehabilitative exercise dimension most closely but is limited to joint mobility, whereas progressive mobility encompasses a broader, staged program of movement and ambulation across multiple body functions and activities. |
| 417047001 (Prolotherapy) | is related to | MRJ.DB.AE (Injection into joint of unspecified site) | Prolotherapy is the injection of an irritant solution (e.g. hypertonic dextrose) into joints, tendons, or ligaments to stimulate tissue healing; MRJ.DB.AE captures the injection-into-joint component but does not encode the specific proliferant agent or the broader soft-tissue targets and therapeutic intent that define prolotherapy, making it a related but inexact match. |
| 237004009 (Prophylactic oxytocic administration) | is related to | NME.SH.AF (Intravenous medical induction of labour) | ICHI has no code for prophylactic uterotonic/oxytocic administration (e.g., for postpartum haemorrhage prevention); the closest coded concept is intravenous medical induction of labour (NME.SH.AF), which involves oxytocin administration but represents a different clinical purpose. NME.SH.AF at least situates the intervention in the obstetric/uterine domain. |
| 229470005 (Prophylactic stretching) | is related to | MU2.PH.ZZ (Training of muscle functions, not elsewhere classified) | ICHI has no dedicated "stretching" code; prophylactic stretching is a preventive muscle-flexibility exercise that most closely relates to training of muscle functions, though ICHI does not capture the prophylactic intent or the specific stretching modality. |
| 40016001 (Prophylactic treatment of femur) | is related to | MLB.DN.AA (Implantation of device into femur) | Prophylactic treatment of the femur (typically prophylactic internal fixation or stabilisation of an at-risk bone for impending pathological fracture) most commonly involves device implantation; however, ICHI does not encode the prophylactic intent and the SNOMED concept is an umbrella term covering any prophylactic intervention on the femur, making this only a related match. |
| 76246008 (Prophylactic treatment of radius and ulna with methyl methacrylate) | is related to | MFB.DN.AE (Percutaneous implantation of device into bone of forearm) | Injection of methyl methacrylate (bone cement) into the radius and ulna for prophylactic stabilisation is a percutaneous procedure targeting forearm bone, making MFB.DN.AE the closest structural match; however, ICHI does not distinguish cement injection from hardware implantation, and the prophylactic intent and specific substance are not captured. |
| 305067001 (Prophylactic upper limb stretching) | is related to | MU2.PH.ZZ (Training of muscle functions, not elsewhere classified) | Like 229470005, prophylactic upper limb stretching has no direct ICHI equivalent; training of muscle functions NEC is the nearest functional category, but ICHI does not encode the upper-limb anatomical specificity, the stretching technique, or the prophylactic intent. |
| 448688006 (Prosthetic reinforcement of intraarticular ligament) | is related to | MML.ML.AA (Reconstruction of ligaments of knee) | The ACL is the archetypal intra-articular ligament requiring prosthetic reinforcement, making knee ligament reconstruction the closest ICHI match; however the ICHI code is site-specific (knee only), encodes reconstruction broadly rather than prosthetic reinforcement specifically, and does not distinguish intra-articular from extra-articular ligaments. |
| 713108007 (Provide status report to multidisciplinary team) | is related to | PZB.TD.ZZ (Case coordination) | Providing a status report to a multidisciplinary team is a form of inter-professional coordination, aligning most closely with case coordination. However, "case coordination" encompasses broader ongoing coordination activity, while the SNOMED concept is specifically a single reporting act. |
| 427325006 (Providing reassurance to caregiver) | is related to | UCH.RG.ZZ (Providing services in relation to support from personal care providers and personal assistants) | A caregiver maps onto ICHI's "personal care providers and personal assistants" target, and providing reassurance is closest to "providing services" in that domain; no dedicated reassurance or emotional support action exists. The match is approximate because ICHI lacks a precise "reassurance" action code. |
| 426312008 (Providing reassurance to neighbor) | is related to | UCE.RG.ZZ (Providing services in relation to support from acquaintances, peers, colleagues, neighbours and community members) | ICHI's UCE target explicitly includes neighbours, and "providing services" is the closest available action to delivering reassurance within that target domain. No dedicated reassurance action exists in ICHI, making this an approximate relational match. |
| 1254717009 (Provision of aid for severe disability) | is related to | UEN.RG.ZZ (Providing social security services, systems and policies) | Disability aid/allowance is fundamentally a social security benefit, and UEN.RG.ZZ is the closest ICHI code representing the delivery of social security services; however, ICHI frames this at the level of systems and policies rather than the individual act of granting disability aid, and severity is not captured. |
| 715938002 (Provision of anesthetist patient escort) | is related to | PZB.TJ.ZZ (Transporting person) | "Provision of anesthetist patient escort" refers to a clinician accompanying a post-anaesthesia or sedated patient during transfer, combining transport with clinical monitoring; PZB.TJ.ZZ covers transport but does not capture the anaesthesia oversight dimension. |
| 1356729003 (Provision of asthma safe cleaning supplies) | is related to | UBL.RD.ZZ (Providing goods to improve indoor air quality) | Providing asthma-safe cleaning supplies is aimed at reducing inhalation triggers in the indoor environment, which aligns most closely with providing goods to improve indoor air quality. The match is relatedto rather than wider/narrower because the SNOMED concept is specifically about cleaning product substitution as an asthma management strategy. |
| 425744001 (Provision of bedside sitter) | is related to | PZB.AM.ZZ (Observation of whole person) | A bedside sitter's primary clinical function is continuous in-person observation of a patient (for safety, fall prevention, or behaviour monitoring), which aligns most closely with "Observation of whole person". No ICHI code specifically represents the act of stationing a human companion at a bedside. |
| 228596002 (Provision of body support) | is related to | PZX.LD.ZZ (Positioning of a part of the body, not elsewhere classified) | "Body support" in a clinical rehabilitation context most commonly refers to positioning or supporting a body part to maintain alignment or function; ICHI encodes this under positioning interventions. The SNOMED concept may also encompass provision of assistive devices or orthotics, making this related rather than equivalent. |
| 228622000 (Provision of computer equipment) | is related to | UAF.RD.ZZ (Providing goods for communication) | Computer equipment provision could fit several ICHI domains depending on purpose (communication, education, employment). UAF.RD.ZZ is the nearest category if the computer serves as an assistive or communication device, but the match is imprecise because ICHI does not have a code specifically for providing computer equipment. |
| 445283009 (Provision of educational material) | is related to | VFS.PM.ZZ (Education about improving health literacy) | ICHI does not have a code specifically for distributing or providing educational materials as an act; the closest conceptual match is education to improve health literacy, but that code represents an educational action rather than the supply of materials, making it a related but not equivalent concept. |
| 57011000087107 (Provision of instruction for performing activity) | is related to | UAD.PM.ZZ (Education about products and technology for personal use in daily living) | ICHI does not have a generic "instruction for performing an activity" code; the closest domain is education/training aimed at helping a person perform daily activities. This is a related but imprecise match because the SNOMED concept refers broadly to instructing a person on how to perform any activity, while the ICHI code is specifically tied to products and technology rather than activities per se. |
| 715933006 (Provision of medical patient escort) | is related to | PZB.TJ.ZZ (Transporting person) | PZB.TJ.ZZ describes physically transporting a whole person and is the closest ICHI concept, but "medical patient escort" implies supervised accompaniment by a health professional during transit, which is a clinically distinct activity not fully captured by this logistical transport code. |
| 385776003 (Provision of Patient Bill of Rights) | is related to | SXK.RB.ZZ (Practical support with enjoying human rights) | A Patient Bill of Rights is a formal document informing patients of their entitlements, which relates to supporting individuals in exercising their rights — the domain of SXK.RB.ZZ. The match is only "relatedto" because ICHI frames this as direct practical support for a person's human rights engagement, whereas the SNOMED concept is an institutional/administrative act of distributing a rights document. |
| 1356730008 (Provision of space heater) | is related to | UAL.TM.ZZ (Environment modification to aspects of buildings for private use) | Providing a space heater modifies the thermal environment of a private dwelling, aligning with UAL.TM.ZZ; the match is imperfect because no ICHI code specifically captures provision of a heating appliance as a discrete good. |
| 444894008 (Provision of stoma care equipment) | is related to | PTD.SN.AC (Management of stoma, not elsewhere classified) | ICHI's stoma-specific codes cover assessment, training, education, and management but none specifically represent provision of stoma care equipment; PTD.SN.AC is the closest related concept though it implies management rather than equipment supply. |
| 312630005 (Provision of support as signing user) | is related to | SFJ.RB.ZZ (Practical support with producing messages in sign languages) | The SNOMED concept describes a support worker acting as a signing user (enabling communication via sign language), while SFJ.RB.ZZ frames practical support from the recipient's activity perspective rather than the provider's role. |
| 710917005 (Provision of transcutaneous electrical nerve stimulation device) | is related to | AXA.SC.BP (Electrical stimulation for pain) | AXA.SC.BP represents the clinical intervention of electrical stimulation for pain management, the therapeutic purpose of a TENS device; however, the SNOMED concept describes provision of the device rather than performing the treatment. |
| 699837007 (Provision of written information about cystoscopy) | is related to | NT2.PM.ZZ (Education about urinary functions, not elsewhere classified) | ICHI has no code for education about a diagnostic procedure; NT2.PM.ZZ covers education pertaining to urinary functions and is the closest structural fit for written information about a bladder endoscopy procedure, but the concepts are not directly equivalent. |
| 699834000 (Provision of written information about leishmaniasis) | is related to | UBQ.PM.ZZ (Education about animal vectors of disease) | Leishmaniasis is a sand-fly vector-borne disease, so UBQ.PM.ZZ is conceptually related; however, the SNOMED concept concerns the disease itself and the written modality, whereas the ICHI code is scoped to the environmental vector. |
| 699842004 (Provision of written information about maternity care) | is related to | NUE.PM.ZZ (Education about functions related to pregnancy) | Maternity care spans pregnancy and the postnatal period; NUE.PM.ZZ covers pregnancy-functions education only, missing postnatal/newborn care and the written modality, so this is a related rather than equivalent match. |
| 386403002 (Pruritus care) | is related to | LT2.ZZ.ZZ (Other interventions to functions of the skin, not elsewhere classified) | ICHI has no specific code for pruritus management; LT2.ZZ.ZZ is the closest structural fit as a residual catch-all for unlisted skin function interventions, not a dedicated pruritus care concept. |
| 183485002 (Psychiatric day care) | is related to | PZB.ZZ.ZZ (Health management encounter, unspecified) | ICHI has no concept representing a psychiatric day care programme or partial hospitalisation setting; PZB.ZZ.ZZ is the closest general encounter-level code, capturing contact type rather than the structured day-care service model. |
| 385860003 (Psychosocial analysis management) | is related to | ATF.AA.ZZ (Assessment of global psychosocial functions) | "Psychosocial analysis management" implies both conducting analysis and managing findings, whereas ATF.AA.ZZ covers only the assessment/analysis; the management dimension is not captured. |
| 302248000 (Psychotherapeutic approaches using specific settings) | is related to | PZB.PQ.ZZ (Psychotherapy for the whole person, not elsewhere classified) | No ICHI code captures psychotherapy defined by use of a specific environmental/milieu setting; PZB.PQ.ZZ is the closest available code but does not encode the setting-based dimension. |
| 65653002 (Pulse taking) | is related to | HT2.AB.AH (Other nonoperative cardiac and vascular measurements, not elsewhere classified) | ICHI has no dedicated code for pulse palpation or manual heart-rate measurement; the closest category is this residual non-operative cardiovascular measurement code, which is broader and serves as a catch-all. |
| 56909003 (Puncture and aspiration of bronchus) | is related to | JBB.JB.AD (Endoscopic drainage of bronchus) | ICHI has no code for puncture-and-aspiration of the bronchus; JBB.JB.AD is the closest available bronchus drainage procedure but implies endoscopic drainage rather than direct needle puncture with aspiration. |
| 57931004 (Puncture of artery) | is related to | IZA.FA.AA (Incision of artery, not elsewhere classified) | ICHI contains no code for needle puncture of an artery; the closest available code is incision of artery NEC, which shares the concept of opening an arterial wall but is a broader surgical action rather than a needle puncture. |
| 313072003 (Racial abuse counseling) | is related to | VBC.PP.ZZ (Counselling about community violence behaviours) | Racial abuse is a form of community/interpersonal violence; ICHI's nearest counselling code targets community violence behaviours but has no specific code for racially motivated abuse or discrimination, making the match thematic rather than equivalent. |
| 699800001 (Radial forearm free flap) | is related to | LZZ.JH.AA (Procurement of skin and subcutaneous tissue for graft or flap, not elsewhere classified) | ICHI captures procurement of skin/subcutaneous tissue for graft or flap at a NEC level but does not encode the radial forearm donor site, the free (microvascular) nature of the transfer, or the recipient-site reconstruction. |
| 180078006 (Radialization correction for radial club hand) | is related to | MFJ.LC.AA (Stabilisation of wrist joint) | Radialization (centralization of the carpus on the ulna) is the closest matching wrist-level surgical procedure in ICHI, but ICHI does not encode the congenital indication (radial longitudinal deficiency) nor the specific repositioning-and-fixation technique. |
| 680007 (Radiation physics consultation) | is related to | UBR.PN.ZZ (Advising about radiation) | ICHI has no concept of a "physics consultation"; UBR.PN.ZZ is the closest code but sits in the environmental/public-health radiation block rather than the clinical radiotherapy planning context. |
| 410167009 (Radiation therapy care assessment) | is related to | PZB.AA.ZZ (General health assessment) | ICHI has no code for assessing a patient receiving radiation therapy specifically; "General health assessment" is the broadest clinical assessment code and only loosely captures the radiation-therapy-specific clinical review. |
| 410169007 (Radiation therapy care management) | is related to | PZB.TD.ZZ (Case coordination) | "Care management" of an ongoing radiation therapy episode aligns with "Case coordination", which covers managing a patient's care journey; ICHI has no radiation-therapy-specific management code. |
| 28618007 (Radical excision of floor of mouth) | is related to | KAZ.JJ.AC (Partial excision of oral cavity, not elsewhere classified) | ICHI has no dedicated code for the floor of mouth and no "radical excision of oral cavity" code; KAZ.JJ.AC covers the correct anatomical region but uses partial excision rather than radical excision. |
| 169400008 (Radiochemotherapy via intravenous route) | is related to | PZA.DB.AF (Administering pharmacotherapy, percutaneous transluminal) | ICHI has no combined radiochemotherapy concept; PZA.DB.AF covers IV administration of pharmacotherapy and captures only the chemotherapy arm, omitting the concurrent radiotherapy component. |
| 447954001 (Radiofrequency ablation of lesion of heart) | is related to | HFC.GA.AF (Percutaneous transluminal ablation of cardiac conduction system) | ICHI's only cardiac ablation codes are scoped to the cardiac conduction system, not to an arbitrary heart lesion; no general heart-lesion destruction code exists in ICHI. |
| 231406006 (Radiofrequency destruction of celiac plexus) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | ICHI contains no dedicated celiac plexus destruction code; the celiac plexus is a sympathetic autonomic structure so ADA.ZZ.ZZ is the closest anatomical grouping, though it is a residual catch-all. |
| 303569005 (Radiofrequency destruction of sympathetic nerve) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | ICHI sympathetic nervous system codes are level-specific and only support excision/injection actions — no destruction (GA) action exists; ADA.ZZ.ZZ is the only sympathetic-specific code applicable without a known level. |
| 118640001 (Radioimmunotherapy) | is related to | DTB.DB.AF (Intravenous administration of immunological agent) | Radioimmunotherapy involves IV delivery of a radiolabelled monoclonal antibody, so the administration route and agent class align, but ICHI has no code capturing the radionuclide-mediated cytotoxic component. |
| 8994009 (Radioiron oral absorption study) | is related to | DTA.AC.ZZ (Test of functions of the haematological system) | A radioiron oral absorption study assesses iron uptake into the haematopoietic system; ICHI has no code capturing the oral radiotracer administration or GI absorption dimension, making DTA.AC.ZZ the broadest relevant functional-testing code. |
| 83093007 (Radioisotope joint imaging) | is related to | MRB.BA.BE (Nuclear imaging study of bone of unspecified site) | ICHI has nuclear imaging study codes for specific named joints but no assignable generic "nuclear imaging of joint, unspecified site" code; MRB.BA.BE is the closest available unspecified-site nuclear imaging code in the musculoskeletal system, though it targets bone rather than joint. |
| 432094005 (Radiolabeled Iodine 131 antibody therapy) | is related to | DTB.DB.AF (Intravenous administration of immunological agent) | Radioimmunotherapy with I-131-labeled antibodies (e.g., tositumomab) is a therapeutic procedure that combines a monoclonal antibody (immunological agent) with a radioactive isotope, and intravenous delivery is the standard route. However, the ICHI code does not capture the radiolabeled/radioactive isotope dimension, making this a related but inexact match. |
| 426940008 (Radionuclide angiocardiography) | is related to | HTB.BA.BE (Cardiac output scan, not elsewhere classified) | Radionuclide angiocardiography (first-pass or gated cardiac blood-pool imaging with a radiotracer) is used to assess cardiac output and ejection fraction; HTB.BA.BE is the closest available ICHI code but is broader (covers any cardiac output scan technique) and does not specifically denote the radionuclide/angiocardiographic method. |
| 303874005 (Radionuclide blood cell study) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | ICHI has no code for a radionuclide study targeting blood cells specifically (e.g. labelled RBC or WBC scan). PZA.BA.BE shares the radioisotope imaging technique but applies it to the whole body as target rather than to blood cells, making it related but not equivalent. |
| 252466004 (Radionuclide clearance test of tissue perfusion) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | ICHI contains no code for a radionuclide clearance test assessing tissue perfusion; PZA.BA.BE is the only generic radioisotope imaging code available, sharing the nuclear medicine technique but not encoding the clearance methodology or perfusion measurement purpose. |
| 433218007 (Radionuclide imaging of heart using iobenguane (123-I)) | is related to | HTC.BA.BE (Myocardial perfusion scan) | Iobenguane (123-I MIBG) cardiac imaging targets cardiac sympathetic innervation, not myocardial perfusion, making this a related but semantically distinct procedure from HTC.BA.BE. No ICHI code for cardiac adrenergic/sympathetic nuclear imaging exists; HTC.BA.BE is the only cardiac nuclear scan code available and is the closest match within the classification. |
| 1336102006 (Radionuclide imaging of liver and biliary tract using radioactive isotope) | is related to | KCF.BA.BE (Nuclear study of gallbladder) | ICHI has no dedicated code for combined liver-and-biliary-tract nuclear imaging; the closest nuclear imaging code in the hepatic/biliary section is KCF.BA.BE, which covers the gallbladder only and does not include the liver or the full biliary tract. The match is therefore only relationally approximate. |
| 765255007 (Radionuclide imaging of liver using rose bengal (131-I) sodium) | is related to | KZZ.BA.BE (Nuclear imaging study of gastrointestinal tract, not elsewhere classified) | ICHI contains no assignable nuclear imaging code specifically for the liver; KZZ.BA.BE is the residual nuclear imaging code for the digestive system (which includes the liver) and is the closest available code, but it is far broader than this highly specific SNOMED concept that names a particular radiopharmaceutical and a single organ. |
| 1287929006 (Radionuclide imaging of liver using tauroselcholic acid (75-Se)) | is related to | KZZ.BA.BE (Nuclear imaging study of gastrointestinal tract, not elsewhere classified) | As with the rose bengal concept, there is no ICHI code for liver-specific nuclear imaging; KZZ.BA.BE is the best available residual code covering nuclear imaging within the digestive system, but it is much wider than this concept and does not capture the liver target or the specific radiopharmaceutical. |
| 241348003 (Radionuclide imaging of liver using technetium (99m-Tc) with hepatic perfusion index) | is related to | KZZ.BA.BE (Nuclear imaging study of gastrointestinal tract, not elsewhere classified) | No ICHI code exists for hepatic nuclear imaging specifically, let alone with a perfusion-index measurement; KZZ.BA.BE is again the closest residual category, capturing the nuclear imaging modality within the digestive system chapter but without the liver specificity or the functional perfusion-index component. |
| 241332004 (Radionuclide stomach-lung reflux study) | is related to | KZZ.BA.BE (Nuclear imaging study of gastrointestinal tract, not elsewhere classified) | This aspiration/reflux scintigraphy study involves both the gastric (GI) and pulmonary targets; KZZ.BA.BE covers GI nuclear imaging not elsewhere classified but entirely omits the lung component and the reflux/aspiration clinical purpose, making it a related but imprecise match. |
| 1345281003 (Radionuclide study of vascular system) | is related to | IZE.BA.BA (Imaging of blood vessel, not elsewhere classified) | ICHI has no radioisotope-specific (BE means) variant for blood vessel imaging; the closest available code covers generic imaging of unspecified blood vessels under the circulatory system chapter. The radioisotope modality and the vascular system scope are both only partially represented, making this a related rather than equivalent or wider match. |
| 303871002 (Radionuclide urinary tract study) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | ICHI has no dedicated nuclear imaging code covering the urinary tract as a whole; the closest available code is the whole-body radioisotope scan (PZA.BA.BE), which is semantically broader but is the best existing approximation since the urinary tract spans kidney, ureter, and bladder and no multi-organ urinary tract nuclear study code exists. |
| 303900001 (Radionuclide water and electrolyte study) | is related to | ETE.AA.ZZ (Assessment of water, mineral and electrolyte balance function) | ETE.AA.ZZ covers assessment of water, mineral, and electrolyte balance function, which aligns in purpose with a radionuclide study of water and electrolyte metabolism, but the ICHI code is modality-agnostic (no nuclear means axis) and conceptually broader, making this a related rather than equivalent match. |
| 169351001 (Radiotherapy by infusion of head and/or neck) | is related to | LAA.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue of head or neck by radiotherapy) | LAA.GA.BA is the only ICHI radiotherapy code targeting the head/neck region, but it is specific to skin and subcutaneous tissue, whereas the SNOMED concept refers to systemic infusion-delivered radiotherapy (e.g., radiolabelled therapeutic agent delivered intravenously) to the head/neck, making the match approximate rather than equivalent. |
| 168520004 (Radiotherapy for immunosuppression) | is related to | PZA.GA.BA (Total body irradiation) | Total body irradiation is the principal clinical context in which radiotherapy is used for immunosuppression (e.g., pre-transplant conditioning), but PZA.GA.BA defines the procedure by its physical scope (whole body) rather than its immunosuppressive intent, and not all immunosuppressive radiotherapy is total body irradiation. |
| 168522007 (Radiotherapy to lymphoreticular system) | is related to | DFA.GA.BA (Destruction of lesion or tissue of other and unspecified lymph node by radiotherapy) | The lymphoreticular system encompasses lymph nodes, spleen, bone marrow, and reticuloendothelial tissues broadly, whereas DFA.GA.BA is scoped only to unspecified lymph nodes by radiotherapy; it captures part of the concept but omits the reticuloendothelial and other lymphoreticular components. |
| 428416002 (Radiotherapy to neck) | is related to | LAA.GA.BA (Destruction of lesion or tissue of skin and subcutaneous cell tissue of head or neck by radiotherapy) | This is the only ICHI radiotherapy code explicitly covering the neck region, but it is restricted to skin and subcutaneous tissue of the head or neck, whereas "radiotherapy to neck" in SNOMED refers to the neck as a topographic region regardless of tissue type. |
| 428829005 (Radiotherapy to pelvis) | is related to | DFF.GA.BA (Destruction of lesion or tissue of abdominal or pelvic lymph node by radiotherapy) | No general pelvic radiotherapy code exists in ICHI; DFF.GA.BA is the closest code that explicitly mentions the pelvic region combined with radiotherapy, but it targets only abdominal or pelvic lymph nodes rather than the pelvis as a topographic region, making it a related but not equivalent match. |
| 275196007 (Ramstedt operation) | is related to | KBF.LG.AA (Pyloroplasty) | The Ramstedt operation (pyloromyotomy) is a longitudinal incision of the pyloric muscle only, while pyloroplasty involves full-thickness incision and widening of the pyloric channel — they share the pyloric target and relieving pyloric obstruction as the functional goal but differ in surgical technique and tissue layers involved; no ICHI code for pyloromyotomy specifically exists. |
| 27303004 (Re-entry operation of aorta) | is related to | HIG.ML.AA (Reconstruction of descending thoracic aorta) | Aortic re-entry operations (creating a fenestration between true and false lumen in aortic dissection) have no dedicated ICHI code; reconstruction of the descending thoracic aorta is the closest related procedure category, though the re-entry concept is anatomically non-specific (may affect any aortic segment) and mechanistically distinct from general reconstruction. |
| 66016003 (Reattachment of artery of extremity) | is related to | IZA.LB.AA (Anastomosis of artery, not elsewhere classified) | ICHI has no dedicated "reattachment of extremity artery" code; arterial reattachment is performed via anastomosis, making IZA.LB.AA the closest operative equivalent. The SNOMED concept implies replantation context with extremity specificity, while the ICHI code is generic NEC anastomosis without extremity specification. |
| 33989004 (Reattachment of uterosacral ligament) | is related to | NME.LC.AC (Transvaginal uterosacral ligament suspension) | Both procedures involve the uterosacral ligament and are performed for uterine/pelvic support, but "reattachment" (LB action) and "suspension" (LC action) are mechanically distinct operations. No ICHI code for reattachment of a uterine or pelvic ligament exists. |
| 254162006 (Recession of levator palpebrae superioris muscle) | is related to | BAA.FC.AA (Release of eyelid) | The levator palpebrae superioris is an eyelid muscle, and its recession is a surgical repositioning used to treat ptosis — procedurally distinct from a simple "release." BAA.FC.AA is the closest available ICHI code targeting the eyelid structure but does not capture the specific action of recessing the levator. |
| 444564009 (Recession of muscle) | is related to | MRM.MK.AA (Repair of muscle of unspecified site) | ICHI has no dedicated code for muscle recession (detachment and posterior reattachment of a muscle insertion); MRM.MK.AA is the closest generic surgical intervention on muscle, but the operative concept of recession is not captured. |
| 408429008 (Recommendation to caregiver regarding child's development program) | is related to | ETM.PM.ZZ (Education about growth and development) | ICHI has no code specifically for advising a caregiver about a child's development programme; the closest available code is "Education about growth and development", which targets the subject's growth and development rather than advising a caregiver. |
| 223439008 (Recommendation to discontinue a therapy) | is related to | UAC.TD.ZZ (Collaboration relating to medications) | This SNOMED concept describes a clinician recommending discontinuation of a therapy (which could include pharmacological or non-pharmacological treatments), while UAC.TD.ZZ covers interprofessional collaboration about medications specifically. No ICHI code captures "recommendation to stop a therapy" precisely; the concept is broader than medications and the direction (discontinue) is not encoded. |
| 417103009 (Recommendation to General Practitioner to decrease patient medication) | is related to | UAC.TD.ZZ (Collaboration relating to medications) | This concept describes a specialist communicating a recommendation to a GP to reduce a patient's medication dose or frequency, which is interprofessional collaboration about medications; UAC.TD.ZZ captures that cross-provider communication but does not encode the specific direction (decrease) or the GP-to-specialist relationship. |
| 417267003 (Recommendation to GP to increase patient medication) | is related to | UAC.TD.ZZ (Collaboration relating to medications) | Like the preceding concept, this describes interprofessional communication to a GP recommending a medication increase, which maps most closely to ICHI's collaboration-about-medications code, though the directionality (increase) and the specific GP recipient are not encoded by ICHI. |
| 416095004 (Recommendation to GP to re-start patient medication) | is related to | UAC.TD.ZZ (Collaboration relating to medications) | Re-starting a patient's medication on the advice of a clinician to a GP is a form of interprofessional collaboration about medications; UAC.TD.ZZ is the closest match but does not distinguish between starting, stopping, increasing, or decreasing, nor does it specify the GP as recipient. |
| 417589003 (Recommendation to GP to start patient medication) | is related to | UAC.TD.ZZ (Collaboration relating to medications) | Recommending to a GP to initiate a patient's medication is an act of interprofessional collaboration about medications, best captured by UAC.TD.ZZ, though ICHI does not encode the specific action (initiation) or the GP recipient role. |
| 223444001 (Recommendation to seek attention) | is related to | UEP.TI.ZZ (Referral to health provider) | UEP.TI.ZZ represents a formal referral action performed by a clinician, whereas the SNOMED concept is a recommendation or advice to the patient to seek care on their own; the concepts are semantically related but the actor and mechanism differ, making this a relatedto rather than an equivalence or wider/narrower mapping. |
| 223436001 (Recommendation to stop activity) | is related to | VEB.PN.ZZ (Advising about physical activity behaviours) | ICHI has no generic "recommendation to stop activity" code; VEB.PN.ZZ (Advising about physical activity behaviours) is the closest behavioural advising category, but it covers physical activity broadly rather than the specific act of advising cessation of an activity, and "activity" in the SNOMED concept may be broader than physical activity alone. |
| 223437005 (Recommendation to stop behavior) | is related to | VE1.PN.ZZ (Advising about lifestyle behaviours, unspecified) | ICHI has no specific "stop behaviour" recommendation code; VE1.PN.ZZ (Advising about lifestyle behaviours, unspecified) is the broadest unspecified lifestyle behaviour advising code available. The direction of the advice (stopping vs. starting) is not encoded in ICHI, making this only a relatedto match. |
| 304540007 (Recommendation to stop drug treatment) | is related to | VAD.PN.ZZ (Advising about pharmaceutical use behaviours) | VAD.PN.ZZ covers advising a patient about their pharmaceutical use behaviours, which aligns with the clinical intent of recommending drug treatment cessation; however, ICHI does not distinguish between recommending starting versus stopping a medication at the action level, making this a relatedto rather than equivalent match. |
| 223440005 (Recommendation to undertake activity) | is related to | VEB.PN.ZZ (Advising about physical activity behaviours) | ICHI lacks a generic "recommend to undertake activity" code; VEB.PN.ZZ (Advising about physical activity behaviours) is the closest match when "activity" is interpreted as physical activity, but the SNOMED concept is directionally broader (any activity) and ICHI does not distinguish initiation versus cessation advice at the action axis level. |
| 425480002 (Reconstruction of annular ligament for stabilization of joint) | is related to | MEL.LB.AA (Reattachment of ligament or fascia of elbow) | The annular ligament is an elbow structure (stabilises the radial head), and ICHI has no reconstruction code for elbow ligament; the closest available code is MEL.LB.AA (reattachment), which is related but captures reattachment rather than full reconstruction with stabilization intent. |
| 35932000 (Reconstruction of below-elbow amputation) | is related to | MFB.JN.AA (Amputation through forearm) | ICHI has no dedicated "reconstruction of amputation stump" or "revision of below-elbow amputation" code; MFB.JN.AA covers amputation through the forearm (the original procedure), not its reconstruction. The SNOMED concept refers to refashioning or revising a below-elbow (transradial) amputation stump, which is conceptually related but not the same procedure as the amputation itself. |
| 173764008 (Reconstruction of gastrostomy) | is related to | PTA.SN.AC (Management of gastrostomy) | ICHI's gastrostomy block (BlockL5-PTA) contains no reconstruction or revision code; PTA.SN.AC "Management of gastrostomy" is the closest available concept, but it is a general management code rather than a structural reconstruction of the stoma. No better match exists in ICHI for rebuilding or revising a gastrostomy opening. |
| 713685008 (Reconstruction of joint of knee with external fixation) | is related to | MMJ.LC.AA (Stabilisation of knee joint) | ICHI has no code for reconstruction of the knee joint itself combined with external fixation; the knee joint block contains codes for ligament/soft-tissue reconstruction (MML.ML.AA) and stabilisation (MMJ.LC.AA), but none captures "reconstruction of knee joint with external fixation" as a composite concept. MMJ.LC.AA is the closest related concept but is a different action and lacks the reconstruction and fixation specificity. |
| 56057007 (Reconstruction of mastoid cavity) | is related to | CDA.LA.AA (Obliteration of mastoid cavity) | ICHI has no code specifically for reconstruction of the mastoid cavity; the closest available code is obliteration of the mastoid cavity (CDA.LA.AA), which is a related but procedurally distinct operation (obliteration fills the cavity rather than reconstructing it). No equivalent or wider reconstruction code exists within the mastoid sinus block. |
| 426588004 (Reconstruction of radial club hand) | is related to | MFJ.MK.AA (Repair of wrist joint, not elsewhere classified) | Radial club hand reconstruction is a complex multi-component congenital deformity correction involving forearm bone, wrist joint, tendons and soft tissue; no ICHI code captures this compound procedure. MFJ.MK.AA is the closest single structural target, but it addresses only the joint component and does not encode the forearm bone centralization or tendon transfers that define this operation. |
| 176407008 (Reconstruction of scrotum with graft of skin) | is related to | NGG.ML.AA (Reconstruction of scrotum with rotational or pedicle flaps) | Both codes describe scrotal reconstruction, but the techniques differ fundamentally: the SNOMED concept specifies a free skin graft (avascular donor tissue), whereas the ICHI code specifies rotational or pedicle flaps (vascularised tissue transfer). No ICHI scrotum code for free skin grafting exists; NGG.ML.AA is the only scrotum reconstruction code available, making it the closest related option. |
| 9353002 (Reconstruction of trunk using muscle flap) | is related to | LAB.ML.AA (Skin graft to trunk) | ICHI has no code for muscle flap reconstruction of the trunk; the muscle-of-trunk block only contains massage and stretch procedures, and there is no trunk-specific muscle reconstruction code. LAB.ML.AA "Skin graft to trunk" is the closest available code but represents skin-level tissue transfer rather than a muscle flap, making it a related rather than equivalent match. |
| 88142004 (Reconstruction of trunk using myocutaneous flap) | is related to | LAB.ML.AA (Skin graft to trunk) | ICHI lacks a specific code for myocutaneous (combined muscle and skin) flap reconstruction of the trunk; LAB.ML.AA "Skin graft to trunk" covers skin-level reconstruction but not the musculocutaneous composite tissue component. The match is relatedto because the procedure site aligns but the ICHI code does not reflect the myocutaneous flap technique. |
| 449677006 (Reconstruction of upper limb) | is related to | MEM.ML.AA (Reconstruction of muscle of upper limb) | ICHI has no single "reconstruction of upper limb" category code; the closest structural matches are tissue-specific (muscle, artery, tendon, ligament) rather than a general upper limb reconstruction. MEM.ML.AA is the highest-scoring structural reconstruction code for the upper limb, but it captures only one tissue type, making a true equivalent or wider match impossible — the SNOMED concept is intentionally non-specific across all upper limb tissues. |
| 240983003 (Reconstruction with local flap) | is related to | XG1UU3 (Local flap) | XG1UU3 is an ICHI extension code describing the flap type rather than a standalone intervention; it must be appended to a reconstruction code, so direct equivalence is not possible. |
| 423860008 (Recreational therapy care case management) | is related to | SXC.RB.ZZ (Practical support with engaging in recreation and leisure) | ICHI has no case management category; SXC.RB.ZZ covers support interventions in recreation/leisure but emphasises direct practical support rather than care coordination. |
| 433219004 (Reduction of transjugular intrahepatic portosystemic shunt stent using fluoroscopic guidance) | is related to | IEF.LH.AF (Percutaneous transluminal dilatation with insertion of device into portal vein and branches) | Anatomically and procedurally closest available; describes stent insertion/dilation rather than reduction/downsizing of an existing TIPS stent. |
| 339695007 (Reduction of volvulus of intestine) | is related to | KBZ.LD.AA (Intra-abdominal manipulation of large intestine, not elsewhere classified) | ICHI lacks a generic intestine volvulus reduction code; this NEC manipulation code covers only large intestine and uses "manipulation" rather than "reduction of volvulus." |
| 261551001 (Refashioning urinary stoma) | is related to | NAN.KA.AA (Replacement of device of urinary system, not elsewhere classified) | ICHI has no urinary stoma revision/refashioning code; this device replacement code is the closest available but conflates device replacement with stoma reconstruction. |
| 394614006 (Reflexology) | is related to | MRS.PC.ZZ (Massage of soft tissue of unspecified site) | Reflexology applies pressure to specific reflex zones; conceptually related to soft tissue massage but ICHI has no dedicated reflexology code. |
| 410083007 (Rehabilitation therapy management) | is related to | PZB.TD.ZZ (Case coordination) | Closest structural match (organisational oversight of care); not rehabilitation-specific. |
| 28067008 (Reimplantation of artery) | is related to | IEA.LB.AA (Reimplantation of aberrant renal vessel) | Closest LB-axis code for an artery, but anatomically specific to aberrant renal vessels rather than a generic arterial reimplantation. |
| 344780002 (Reimplantation of pancreatic tissue) | is related to | EBD.KD.AF (Transplantation of cells of Islets of Langerhans) | Covers transplantation of a subset of pancreatic tissue (islet cells); uses KD (Transplantation) rather than LB (Reattachment). |
| 428634006 (Reimplantation of spinal nerve into spinal cord) | is related to | ACA.KD.AA (Nerve transplantation) | Spinal nerve block lacks LB or KD codes; peripheral nerve transplantation is the closest available concept but not specific to spinal nerve reimplantation into the cord. |
| 711170009 (Reinforcement of adherence to physical therapy regimen) | is related to | VEB.PH.ZZ (Training to influence physical activity behaviours) | ICHI has no dedicated "adherence reinforcement" concept; VEB.PH.ZZ captures behavioural reinforcement of physical activity but is framed as a public health/behaviour-change training rather than clinical reinforcement of physiotherapy compliance. |
| 711033003 (Reinforcement of adherence to treatment regimen) | is related to | VAD.PP.ZZ (Counselling about pharmaceutical use behaviours) | ICHI has no generic "treatment adherence reinforcement" code; VAD.PP.ZZ is closest when treatment is pharmacological, but the SNOMED concept is wider than any single ICHI code and the domain is an imperfect fit. |
| 1157092000 (Reinforcement of maintenance of physical capabilities) | is related to | VEB.PH.ZZ (Training to influence physical activity behaviours) | ICHI has no code explicitly for "reinforcement of maintenance of physical capabilities"; VEB.PH.ZZ is the closest available code on physical activity training but addresses behaviour-change rather than reinforcing existing capabilities in rehabilitation. |
| 17195006 (Relaxant, induction and maintenance) | is related to | PZA.DC.AF (Intravenous anaesthesia) | The SNOMED concept describes a relaxant-based general anaesthetic technique most often administered intravenously; PZA.DC.AF does not capture the relaxant or induction-and-maintenance components, making this related but inexact. |
| 10907007 (Release of high riding scapula) | is related to | MDL.FC.AA (Release of ligament or fascia of shoulder) | Sprengel deformity release involves muscles, ligaments and fibrous bands tethering the scapula; ICHI lacks a specific code, so MDL.FC.AA captures part but not all of the structural elements typically released. |
| 406180005 (Relocation stress reduction) | is related to | SDJ.PP.ZZ (Counselling about handling stress and other psychological demands) | Relocation stress reduction is a nursing intervention targeting psychosocial distress from environmental change; closest ICHI code addresses the broader domain of stress handling via counselling but does not capture the specific relocation context. |
| 225412003 (Remaining aware of patient's whereabouts at all times) | is related to | PZB.AM.ZZ (Observation of whole person) | This is a continuous nursing safety-monitoring activity (location tracking) rather than clinical observation; PZB.AM.ZZ represents observation of the whole person but does not encode location-tracking or the safety/wandering-prevention purpose. |
| 442207004 (Remanipulation of fracture of short bone and fixation using screw) | is related to | MRB.DN.AA (Implantation of device into bone of unspecified site) | ICHI lacks a single code combining fracture re-manipulation with screw fixation of a short bone; MRB.DN.AA captures the screw fixation but omits both the fracture reduction action and the short-bone target. |
| 228549005 (Reminiscence therapy) | is related to | AUB.PH.ZZ (Training of memory functions) | Reminiscence therapy uses recall of past experiences to improve wellbeing, identity and cognitive function; AUB.PH.ZZ partially overlaps the cognitive component but does not capture the psychotherapeutic or narrative dimensions. |
| 239703004 (Remolding of cast brace) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | ICHI has no code for reshaping/remodelling a cast or brace in situ; closest concept is replacement of an external immobilisation device, a related but distinct action. |
| 175250005 (Removal of anastomosis between pulmonary artery and vena cava) | is related to | HIB.LI.AA (Creation of cavopulmonary shunt) | The SNOMED concept describes removal of a cavopulmonary shunt, whereas HIB.LI.AA describes its creation; no ICHI code exists for takedown of this anastomosis, making this a related but directionally opposite code. |
| 449400003 (Removal of blood clot from arteriovenous fistula) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | ICHI lacks a specific code for thrombectomy/clot removal from an AV fistula; IZA.SN.AF covers management of the AV shunt (closest structural match) but the action (management/maintenance) does not specifically capture clot removal. |
| 241199004 (Removal of bone fragment of skull) | is related to | MAA.JD.AA (Removal of internal device or foreign body from skull) | MAA.JD.AA encodes removal of a device or foreign body from the skull; bone fragments from fracture are not typically classified as foreign bodies, so the semantic fit is approximate rather than equivalent. |
| 40967000 (Removal of calculus of lacrimal canaliculi) | is related to | BAD.JD.AA (Removal of internal device or foreign body from lacrimal apparatus) | ICHI has no code for dacryolith removal from canaliculi; BAD.JD.AA is the closest functional analogue (foreign body removal from lacrimal apparatus) but is designed for devices/foreign bodies rather than endogenous calculi. |
| 35781006 (Removal of calculus of lacrimal gland) | is related to | BAD.JD.AA (Removal of internal device or foreign body from lacrimal apparatus) | Closest match within the lacrimal apparatus block; covers correct anatomical territory and intent of removing an intraluminal concretion, though "calculus of lacrimal gland" is more specific than ICHI's foreign-body framing. |
| 303243003 (Removal of contaminant from skin) | is related to | LZZ.JA.AH (Irrigation of skin and subcutaneous cell tissue, not elsewhere classified) | ICHI has no code for skin decontamination/contaminant removal; irrigation of skin is the closest procedure as it is a primary means of decontamination, but the concepts are not semantically equivalent. |
| 232708009 (Removal of device from airway) | is related to | JBA.JD.AA (Removal of internal device or foreign body from trachea) | ICHI has no aggregate "airway" code; JBA.JD.AA (trachea) is the most representative airway site for an indwelling device but the SNOMED concept is broader (any airway site). |
| 128409001 (Removal of device from cardiovascular system) | is related to | HFC.JD.AA (Removal of pacemaker or defibrillator system) | ICHI has no aggregate code for device removal from the cardiovascular system; HFC.JD.AA is the most clinically common cardiovascular device removal, but the SNOMED concept covers any cardiovascular device. |
| 128410006 (Removal of device from central nervous system) | is related to | AAA.JD.AA (Removal of internal device or foreign body from brain) | ICHI has no single CNS-wide code; AAA.JD.AA represents brain device removal but the SNOMED concept encompasses the entire CNS including spinal cord. |
| 118489002 (Removal of dressing) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | ICHI has no code for dressing removal as a standalone procedure; the closest concept is application of a dressing — a related but directionally opposite action on the same dressing intervention. |
| 12504000 (Removal of dressing of skin of feet) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | As with the parent concept, ICHI has no dressing-removal code; LZZ.DK.AH covers dressing interventions on skin generally (no foot-specific code), so this is related by both action (application vs. removal) and site granularity. |
| 281951001 (Removal of external fixation) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | ICHI has no dedicated code for straightforward removal of external fixation/immobilisation; PZX.KB.AH is the closest available code but covers exchange/replacement rather than simple removal. |
| 91640004 (Removal of external immobilization device) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | ICHI does not contain a standalone code for removal of an external immobilisation device; PZX.KB.AH is the only ICHI code that addresses management of external immobilisation devices, but implies replacement rather than simple removal. |
| 112704002 (Removal of foreign body from bursa) | is related to | MRS.JD.AH (Removal of foreign body from soft tissue of unspecified site) | No bursa-specific removal code exists in ICHI; bursa is anatomically classified as soft tissue, and MRS.JD.AH is the most semantically appropriate available code, though "unspecified site" and the soft tissue generalisation make this related rather than equivalent. |
| 84125003 (Removal of foreign body from pericardium) | is related to | HFF.FA.AA (Pericardiotomy) | ICHI has no dedicated foreign body removal code for the pericardium; pericardiotomy is the closest available code because foreign body removal from the pericardium requires pericardiotomy as the surgical approach, but does not capture the foreign body removal purpose. |
| 28405008 (Removal of foreign body from spinal cord) | is related to | ABG.JD.AA (Removal of internal device or foreign body from spinal canal) | No ICHI code targets the spinal cord parenchyma directly; ABG.JD.AA targets the spinal canal which is anatomically adjacent but distinct from the cord itself. |
| 52728000 (Removal of foreign body of larynx by incision) | is related to | JAN.JD.AD (Endoscopic removal of internal device or foreign body from larynx) | Target (larynx) and action align, but means differ — SNOMED specifies incision (open) whereas the only ICHI laryngeal foreign body code specifies an endoscopic approach. |
| 371408002 (Removal of foreign body of lower limb, except foot) | is related to | LAG.JD.AA (Removal of internal device or foreign body of skin and subcutaneous cell tissue of lower limb) | LAG.JD.AA is restricted to skin and subcutaneous tissue, while the SNOMED concept covers any tissue of the lower limb (excluding foot), and ICHI also includes the foot. |
| 427800005 (Removal of foreign body of lung by incision) | is related to | JBF.FA.AA (Incision of lung) | No ICHI code for foreign body removal from lung; JBF.FA.AA captures the incisional approach to lung parenchyma but does not convey the foreign body removal purpose. |
| 47453001 (Removal of foreign body of upper arm, deep) | is related to | MEB.JD.AA (Removal of internal device or foreign body from humerus) | The "deep" qualifier indicates subfascial/intramuscular tissue; closest structural candidate is humerus code, but neither captures deep soft tissue of upper arm specifically. |
| 711305009 (Removal of implanted neurostimulator) | is related to | AAA.JD.AA (Removal of internal device or foreign body from brain) | No site-agnostic neurostimulator removal code; the SNOMED concept could refer to brain, spinal canal, or peripheral nerve devices. |
| 9274004 (Removal of intra-aortic balloon with repair of aorta with graft) | is related to | HIG.ML.AA (Reconstruction of descending thoracic aorta) | ICHI lacks a single code for this combined procedure; HIG.ML.AA captures the dominant aortic repair component but omits the balloon removal step. |
| 230813005 (Removal of intracranial extradural tumor) | is related to | AAC.JI.AA (Local excision of lesion of cerebral meninges) | Extradural tumor sits just outside the dura; no dedicated ICHI code for extradural intracranial space. AAC.JI.AA is the nearest available code. |
| 15952007 (Removal of intraluminal foreign body from artificial stoma) | is related to | KBP.JD.AA (Removal of internal device or foreign body from colon) | ICHI has no concept of "artificial stoma" as a target; KBP.JD.AA covers colostomy (most common stoma) but does not generalise to ileostomy or urostomy. |
| 112839005 (Removal of intraluminal foreign body from artificial stoma without incision) | is related to | KBP.JD.AA (Removal of internal device or foreign body from colon) | Same organ-level mismatch as 15952007; the "without incision" approach qualifier in SNOMED is not reflected in this ICHI code. |
| 238337000 (Removal of plomb with collapse of pleural cavity) | is related to | JBF.LL.AE (Artificial pneumothorax for collapse of lung) | Removal of a plomb (historic space-filling material for therapeutic lung collapse, e.g. TB treatment) is a distinct procedure not explicitly represented in ICHI. JBF.LL.AE shares the therapeutic goal of lung collapse but describes creating collapse rather than removing a previously inserted plomb. |
| 238336009 (Removal of plomb with drainage of pleural cavity) | is related to | JCB.JD.AE (Removal of drainage device from pleural cavity) | A plomb is a space-filling material placed extrapleurally for lung collapse therapy, not a drainage device; no ICHI code covers plomb removal specifically. JCB.JD.AE captures the pleural cavity removal context but the procedure nature differs meaningfully. |
| 416621003 (Removal of prosthetic components) | is related to | PAK.JD.AA (Removal of internal device or foreign body from abdomen) | ICHI has no generic body-site-neutral code for removal of prosthetic components; PAK.JD.AA captures the closest action but is restricted to the abdomen and uses broader "internal device or foreign body" language. |
| 177909005 (Removal of prosthetic material from previous repair of ventral hernia) | is related to | PAL.MK.AA (Repair of abdominal wall) | ICHI has no specific code for removal of hernia mesh/prosthetic material from the abdominal wall; PAL.MK.AA covers abdominal wall repair, which is semantically distinct from prosthetic explantation but is the closest available code. |
| 405435007 (Removal of subcutaneous intravenous access reservoir) | is related to | IZD.JD.AF (Removal of intravascular internal device or foreign body from vein, not elsewhere classified) | A subcutaneous IV reservoir (implanted port) has both an intravascular catheter (matched by IZD.JD.AF) and a subcutaneous reservoir component; no single ICHI code captures the full device removal. |
| 439519007 (Removal of subcutaneous port component after open gastric restrictive procedure) | is related to | KBF.JD.AA (Removal of internal device or foreign body from stomach) | The subcutaneous port is the external injection access of an adjustable gastric band system; KBF.JD.AA is the closest gastric-device-removal code but targets the intragastric device rather than the subcutaneous port specifically. |
| 274035004 (Removal of urinary calculus) | is related to | NAA.JE.AA (Extraction of calculus from kidney) | The SNOMED concept is non-specific about urinary tract location; ICHI provides only organ-specific calculus extraction codes with no unifying code, so NAA.JE.AA is selected as a representative organ code. |
| 38904005 (Removal of urinary system device) | is related to | NAA.JD.AA (Removal of internal device or foreign body from kidney) | ICHI provides only organ-specific device removal codes across the urinary system with no unifying "urinary system device" removal code; NAA.JD.AA is selected as a representative organ-level code. |
| 408983003 (Renal care management) | is related to | PZB.TD.ZZ (Case coordination) | "Renal care management" is an organized multidisciplinary program for managing chronic kidney disease patients — closest to ICHI's "Case coordination" which covers coordinating care across services for a whole person, but ICHI has no disease-specific care management concept so the match is relational rather than equivalent. |
| 7776005 (Reopening of canthorrhaphy) | is related to | BAA.FB.AA (Severing of blepharorrhaphy) | Canthorrhaphy and blepharorrhaphy are closely analogous lid-suturing procedures, and severing of blepharorrhaphy is the structural equivalent of reopening a canthorrhaphy; however, the anatomical site (canthus vs. general eyelid) differs and there is no dedicated ICHI code for canthorrhaphy. |
| 237489009 (Reoperation for excision of thyroglossal tissue) | is related to | EBA.AE.AA (Reopening of previous thyroid surgery site) | Both codes represent reoperation in the anterior neck following prior thyroid/thyroglossal surgery; the ICHI code targets the thyroid gland surgical site whereas the SNOMED concept specifically concerns re-excision of residual thyroglossal duct tissue (a distinct embryological structure). |
| 234878000 (Repair fixed functional appliance) | is related to | KAE.SM.AC (Management of external appliance of tooth) | ICHI has no specific code for repairing a fixed functional orthodontic appliance; KAE.SM.AC captures tooth-anchored external appliance management, but "management" is not equivalent to "repair" and the code does not distinguish fixed functional from other tooth appliances. |
| 261555005 (Repair for obstruction of urinary reservoir) | is related to | NAI.ML.AA (Reconstruction of urinary bladder) | ICHI lacks a dedicated code for a continent urinary reservoir or its obstruction repair; NAI.ML.AA covers surgical reconstruction of the urinary bladder (the anatomical analogue), but the action is "reconstruction" rather than specifically obstruction repair, and the target does not include heterotopic pouches or neobladders. |
| 28258001 (Repair of aneurysm by methyl methacrylate) | is related to | IAA.ML.AA (Reconstruction of intracranial artery) | Methyl methacrylate is a bone cement used to reinforce an aneurysm sac, most commonly in neurovascular contexts; IAA.ML.AA captures reconstruction of an intracranial artery but does not specify the material or an unspecified-site aneurysm. |
| 25303003 (Repair of aneurysm by occlusion) | is related to | IAA.LA.AA (Occlusion of intracranial artery) | The SNOMED concept describes aneurysm repair via occlusion without specifying anatomy; IAA.LA.AA encodes occlusion specifically of the intracranial artery; the action is aligned but the ICHI code is site-restricted. |
| 64400007 (Repair of aneurysm by pilojection, Gallagher type) | is related to | IAA.LA.AF (Endovascular embolisation or occlusion of intracranial artery) | Pilojection (Gallagher type) is an obsolete endovascular technique in which hair is injected into the aneurysm sac to induce thrombosis, functionally analogous to endovascular embolisation; IAA.LA.AF is the closest available code but is site-specific to the intracranial artery. |
| 50971006 (Repair of aneurysm by suture) | is related to | IAA.ML.AA (Reconstruction of intracranial artery) | Suturing of an aneurysm wall (aneurysmorrhaphy) is an open surgical repair technique; IAA.ML.AA is the nearest structural analogue, but it does not specify the suture means and does not cover aneurysms at non-intracranial sites. |
| 360383001 (Repair of aneurysm by trapping) | is related to | IAA.LA.AA (Occlusion of intracranial artery) | Trapping involves placing ligatures or clips both proximal and distal to an aneurysm to isolate it — functionally equivalent to vessel occlusion; IAA.LA.AA captures the occlusion action on the intracranial artery but is anatomically restricted. |
| 1236983001 (Repair of choanal atresia) | is related to | JAA.ML.AA (Reconstruction of nose) | ICHI has no specific code for choanal atresia or repair of the posterior nasal aperture; JAA.ML.AA is the closest available code within the nose interventions block, as choanal atresia repair restores patency to a congenitally obstructed nasal structure, but "nose" is anatomically broader than the choana specifically. |
| 234890003 (Repair of cleft palate) | is related to | KAT.MK.AA (Repair of hard palate) | ICHI separates hard palate (KAT.MK.AA) and soft palate (KAS.MK.AA) repair, while the SNOMED concept is unspecified and may involve both; KAT.MK.AA is selected as the primary anatomical anchor for cleft palate repair (the hard palate is the typical focus of palatoplasty). |
| 173790006 (Repair of congenital atresia of pylorus) | is related to | KBF.LG.AA (Pyloroplasty) | Pyloroplasty is the standard surgical procedure used to treat congenital pyloric atresia, making it procedurally related; however, "repair of congenital atresia" and "pyloroplasty" are not semantically equivalent — pyloroplasty is a broader surgical technique that addresses outflow obstruction. |
| 880070008 (Repair of double inlet ventricle) | is related to | HBZ.MA.AA (Ventricular septation procedure) | Double inlet ventricle is most commonly repaired by a ventricular septation procedure, which is exactly what HBZ.MA.AA describes; however, the ICHI code does not explicitly name the double inlet ventricle morphology, and other surgical strategies exist (e.g., Fontan palliation). |
| 1173011006 (Repair of hernia using surgical mesh) | is related to | PAM.ML.AA (Repair of inguinal hernia with graft or prosthesis) | ICHI encodes the use of mesh/prosthesis (ML action axis) in site-specific hernia codes (inguinal, femoral, umbilical), but there is no single cross-site code for hernia repair with mesh. PAM.ML.AA is the closest representative code but assumes inguinal site, whereas the SNOMED concept specifies the mesh technique without fixing the anatomical site. |
| 176660002 (Repair of hymen) | is related to | NMH.MK.AC (Repair of vagina via transvaginal approach) | ICHI does not have a dedicated code for hymen repair (hymenoplasty); the only hymen-specific code in the NMH block is NMH.JJ.AC (Hymenectomy, an excision). The closest available code is vaginal repair, which sits in the same anatomical block and uses the same MK (repair) action axis, but the target is the vagina rather than the hymen specifically. |
| 16653006 (Repair of inflatable penile prosthesis) | is related to | NGM.KA.AA (Replacement of internal penile prosthesis) | ICHI has no code specifically for repairing a penile prosthesis; NGM.KA.AA (Replacement of internal penile prosthesis) is clinically the most related code in the NGM block, but replacement and repair are semantically distinct actions, and ICHI does not distinguish inflatable from other prosthesis types. |
| 46282009 (Repair of laryngotracheal cleft) | is related to | JAN.MK.AA (Repair of larynx) | ICHI has no code for laryngotracheal cleft repair as a combined larynx-trachea procedure; the closest codes are JAN.MK.AA (repair of larynx) and JBA.MK.AA (repair of trachea), neither of which captures the combined laryngotracheal target or the specific pathology (cleft). |
| 11771008 (Repair of non-inflatable penile prosthesis) | is related to | NGM.MK.AA (Repair of penis) | The SNOMED concept specifically describes repair of a prosthetic device (non-inflatable/malleable implant), whereas NGM.MK.AA refers to repair of the penile organ itself; no ICHI code exists for repairing a penile prosthesis as a device. This is the closest available code but targets the organ rather than the implanted device. |
| 40696001 (Repair of nose) | is related to | JAA.ML.AA (Reconstruction of nose) | The JAA (nose) block has no general "Repair of nose" category code — JAA.MK.AA maps to "Closure of nasal fistula" rather than general repair. JAA.ML.AA (Reconstruction of nose) is the closest available code but implies a more complex rebuilding procedure than a general repair, making it a related but imprecise match. |
| 19054000 (Repair of spina bifida) | is related to | ABA.MK.AA (Repair of spinal cord) | Spina bifida repair most commonly involves the spinal cord and/or spinal meninges (e.g., myelomeningocele closure), and ICHI has no dedicated spina bifida code; ABA.MK.AA (repair of spinal cord) is the closest relevant code, but the SNOMED concept is a congenital malformation repair that may also involve meninges, skin, and vertebral elements not captured by this single code. |
| 278538001 (Repair of spinal dysraphism) | is related to | ABA.MK.AA (Repair of spinal cord) | Spinal dysraphism is a broader category than spina bifida encompassing a range of incomplete spinal closure defects; no dedicated ICHI code exists, and ABA.MK.AA is the closest available code, but the SNOMED concept spans multiple tissue layers (cord, meninges, skin, vertebrae) and the relationship is approximate rather than equivalent. |
| 174064009 (Repair of uterine ligaments) | is related to | NME.LC.AA (Uterine suspension) | ICHI has no dedicated "repair of uterine ligaments" code; the closest procedurally related code is NME.LC.AA (Uterine suspension), which often involves plication or shortening of uterine ligaments (e.g., round ligaments) to achieve suspension, but the SNOMED concept refers specifically to structural ligament repair rather than suspension as a functional goal. |
| 21596009 (Repair of uveal hernia) | is related to | BBC.MK.AA (Repair of iris) | ICHI has no code specifically for uveal hernia repair; uveal hernia (prolapse of iris/ciliary body through a wound) most commonly involves the iris, and BBC.MK.AA (Repair of iris) is the closest anatomical match since the iris is the uveal structure most frequently herniated. |
| 46462007 (Repair of vaginocutaneous fistula) | is related to | NMH.MK.AA (Repair of vagina) | ICHI has no code for vaginocutaneous fistula closure; only NMF.MK.AA (Repair of fistula of cervix) exists nearby in the female genital system. NMH.MK.AA (Repair of vagina) is the closest available code covering the vaginal side of the repair, but it does not capture the fistula nature of the intervention nor the skin (cutaneous) component. |
| 64124008 (Repair of vertebral fracture) | is related to | MBZ.LD.AA (Open reduction of vertebra, not elsewhere classified) | ICHI does not have a dedicated "repair of vertebral fracture" code; the closest available codes are reduction of vertebra (open or closed) or reconstruction/vertebroplasty, none of which precisely captures fracture repair as a concept — reduction addresses alignment rather than structural repair, making this only a related match. MBZ.LD.AA is selected as the most plausible surgical correlate for an open fracture repair approach. |
| 33932003 (Replacement of artificial heart) | is related to | HZZ.KD.AA (Heart transplantation) | ICHI has no dedicated code for replacing a total artificial heart device; the closest structural interventions are ventricular assist device implantation/removal codes, none of which capture device replacement. Heart transplantation is related but semantically different — replacing an artificial heart is a mechanical device exchange, not an allograft transplant, so only a relatedto relationship is warranted. |
| 231335004 (Replacement of artificial urinary bladder sphincter) | is related to | NAI.KA.AE (Percutaneous replacement of internal device of urinary bladder) | ICHI does not have a specific code for replacing an artificial urinary sphincter; the closest match covers replacement of an internal urinary bladder device but specifies a percutaneous approach and does not distinguish the sphincter prosthesis specifically. The anatomical target is adjacent (bladder vs. sphincter) and the approach may differ, making this only a relatedto match. |
| 384728007 (Replacement of device) | is related to | PZX.KA.AE (Percutaneous replacement of device, not elsewhere classified) | The SNOMED concept is a high-level generic category for any device replacement without specifying body site or approach, while the best-fitting ICHI NEC code adds a percutaneous approach constraint; no body-site-unspecified open or approach-unspecified device replacement code exists in ICHI. |
| 442866004 (Replacement of nonbiodegradable drug delivery implant) | is related to | PZX.KA.AE (Percutaneous replacement of device, not elsewhere classified) | No ICHI code exists for drug delivery implants specifically; PZX.KA.AE is the residual "not elsewhere classified" percutaneous replacement of device code, which relates to this procedure but does not capture the drug delivery or nonbiodegradable specifics, and the body site is unspecified in the SNOMED concept. |
| 439414000 (Replacement of peripherally inserted central venous catheter) | is related to | ICD.DL.AF (Percutaneous transluminal insertion of device into vein of upper limb) | There is no ICHI code for catheter replacement specifically; ICD.DL.AF represents the insertion component of a PICC procedure (percutaneous transluminal insertion of a device into the vein of the upper limb), but it does not encode the replacement aspect (removal of existing catheter plus new insertion). |
| 287366004 (Replacement of vascular graft) | is related to | IZE.ML.AA (Reconstruction of blood vessel, not elsewhere classified) | ICHI has no dedicated "replacement of vascular graft" code; replacing a graft involves reconstruction of the vascular conduit, making IZE.ML.AA the closest structural match, but it is a generic reconstruction code without specificity to graft exchange. |
| 237007002 (Reposition of a prolapsed arm) | is related to | NMR.LD.AC (Rotation of fetus) | No ICHI code exists for repositioning a prolapsed fetal arm during labour; "Rotation of fetus" (NMR.LD.AC) is the closest obstetric fetal repositioning maneuver within the fetal/embryonic structure block, but it describes a different procedure (rotating the whole fetus) rather than specifically replacing a prolapsed arm. |
| 438594007 (Repositioning of central venous catheter by endovascular snare using fluoroscopic guidance with contrast) | is related to | IDB.DL.AF (Percutaneous transluminal insertion of device into vein of thorax) | ICHI has no dedicated code for repositioning a central venous catheter; IDB.DL.AF shares the target anatomy and percutaneous transluminal approach, but "insertion" does not capture the repositioning/snare/fluoroscopic contrast specifics of the SNOMED concept. |
| 232195005 (Repositioning of ventilation tube through tympanic membrane) | is related to | CBB.JB.AC (Myringotomy with insertion of tube) | ICHI has no specific code for repositioning/adjusting an already-placed tympanic ventilation tube; the closest codes are insertion (CBB.JB.AC) and removal (CBB.JD.AC), neither of which captures repositioning. CBB.JB.AC is chosen as the most clinically related procedure in the same anatomical site. |
| 69957006 (Resorption rate measurement) | is related to | MRB.AC.BA (Bone mineral density studies) | Resorption rate measurement (e.g., biochemical bone turnover markers or calcium balance studies) has no direct ICHI equivalent; MRB.AC.BA covers bone mineral density studies which assess a related but distinct outcome of bone resorption, making it a related rather than equivalent match. |
| 410207002 (Respiratory care management) | is related to | JT2.ZZ.ZZ (Interventions on functions of respiratory system, not elsewhere classified) | There is no discrete ICHI code for "respiratory care management" as an umbrella clinical activity. JT2.ZZ.ZZ captures unspecified interventions on respiratory system functions, but management as a coordination concept is poorly represented in ICHI's action-oriented structure; the code is related but not a close semantic match. |
| 171228002 (Respiratory disease screening) | is related to | JTB.AC.ZZ (Test of respiration function) | ICHI has no dedicated respiratory disease screening code; the closest option is JTB.AC.ZZ (Test of respiration function), which covers respiratory testing that could be performed in a screening context, but "screening" as a programmatic population-level activity is not captured. |
| 182837001 (Restart of medication) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | ICHI does not have a concept specifically for restarting (resuming) a previously discontinued medication; the closest available code is pharmacotherapy prescription, which covers the act of ordering medication but does not capture the "restart" or resumption-specific semantics. |
| 428435002 (Retinopexy using cryotherapy) | is related to | BCC.GA.AA (Destruction of retina) | Retinopexy is a retinal repair/fixation procedure, not primarily a destruction procedure; however, cryoretinopexy works by creating controlled cryo-destruction to induce chorioretinal adhesion, and BCC.GA.AA is the closest ICHI retinal intervention capturing the destructive mechanism. |
| 445830006 (Retrograde catheterization of ureter) | is related to | NAE.LH.AD (Endoscopic dilatation with insertion of device into ureter) | Retrograde ureteral catheterization involves passing a catheter endoscopically into the ureter, which shares the endoscopic approach and device insertion component of NAE.LH.AD; however, NAE.LH.AD specifies dilatation as the primary action, whereas catheterization alone does not necessarily imply dilatation. |
| 703147003 (Reversal of sterilization) | is related to | NMC.MK.AA (Repair of fallopian tube) | The SNOMED concept covers reversal of both female sterilization (tubal reanastomosis) and male sterilization (vasovasostomy), whereas ICHI NMC.MK.AA covers only repair/reanastomosis of the fallopian tube; no vas deferens repair code was found, making this a partial and related match only. |
| 425268008 (Review of care plan) | is related to | PZB.TB.ZZ (Individualised planning) | ICHI has no explicit "review of care plan" code; PZB.TB.ZZ (Individualised planning, targeting the whole person) is the closest concept covering planning and management processes for an individual, but it covers initial and ongoing planning broadly rather than the review act specifically. |
| 719572006 (Review of major housing adaptation plan) | is related to | UAL.AA.ZZ (Assessment of aspects of buildings for private use) | UAL.AA.ZZ covers assessment of private-building aspects, the closest available ICHI concept to reviewing a housing adaptation plan; however, ICHI does not represent the plan-review act itself, and this code is broader and focused on environmental assessment rather than the clinical/social planning review. |
| 719568007 (Review of new housing development architectural plan) | is related to | UAN.TB.ZZ (Planning in relation to products and technology of land development) | UAN.TB.ZZ sits within "Interventions on products and technology of land development", the closest ICHI match to reviewing an architectural plan for a new housing development; the concept is approximate because ICHI frames it as a planning action rather than a review of an existing plan. |
| 179746005 (Revision allograft replacement extra-articular ligament) | is related to | MML.ML.AA (Reconstruction of ligaments of knee) | ICHI has no code specifically for revision of an allograft extra-articular ligament repair; reconstruction of ligaments of knee is the nearest conceptual match for a ligament reconstruction but does not capture revision context, allograft graft source, or extra-articular specificity. |
| 67554001 (Revision and reinsertion of ocular implant) | is related to | BZZ.JD.AC (Removal of ocular implant, not elsewhere classified) | ICHI has no single code for revision-and-reinsertion of an ocular implant; available codes cover only discrete steps (removal or insertion). BZZ.JD.AC is selected as the closest related code, but the SNOMED concept also includes the reinsertion step and revision intent. |
| 707281000 (Revision anterior excision of body of thoracic vertebra with reconstruction) | is related to | MBG.JJ.AA (Partial thoracic vertebrectomy) | MBG.JJ.AA covers excision of a thoracic vertebral body but does not capture the revision nature nor the accompanying reconstruction component (which would be expressed separately). No single ICHI code maps to this compound revision-excision-reconstruction concept. |
| 178568006 (Revision anterior excision thoracic disc and fusion) | is related to | MBH.JJ.AA (Thoracic discectomy) | MBH.JJ.AA covers the discectomy component, but the SNOMED concept additionally includes spinal fusion and a revision context, none of which are captured in a single ICHI code; the discectomy is the primary operative target. |
| 301042007 (Revision closed wire fixation of fracture) | is related to | MRB.LD.AH (Closed reduction of bone of unspecified site) | ICHI has no code for wire (K-wire/pin) fixation of a fracture, nor for revision of such a procedure; MRB.LD.AH represents the closed reduction component but omits the wire fixation device placement and the revision nature. |
| 180048002 (Revision coverage of amputation stump) | is related to | MRS.MK.AA (Repair of soft tissue of unspecified site) | ICHI has no specific code for stump coverage or revision of stump coverage; repair of soft tissue of unspecified site is the closest concept capturing a soft tissue repair procedure but does not convey the amputation stump context, coverage/wound closure nature, or revision aspect. |
| 609210004 (Revision of amputation stump of ankle) | is related to | MNB.JN.AA (Below knee amputation) | ICHI has no dedicated ankle-level (Syme's) amputation code; below knee amputation is the closest anatomical match but covers the tibia/fibula level rather than the ankle precisely, and revision/stump-revision context is not captured at the base code level. |
| 609216005 (Revision of amputation stump of wrist) | is related to | MFB.JN.AA (Amputation through forearm) | ICHI has no specific "revision of amputation stump" code and no wrist-level amputation target; the closest anatomical match is amputation through forearm (the level that produces a wrist-level stump), but this represents the original amputation procedure rather than its revision. |
| 30129001 (Revision of anastomosis of artery) | is related to | IZA.LB.AA (Anastomosis of artery, not elsewhere classified) | ICHI does not have a dedicated "revision of anastomosis" action; IZA.LB.AA captures the target (unspecified artery) and act (anastomosis) but represents formation of a new anastomosis rather than revision/takedown/redo of an existing one. |
| 4862007 (Revision of anastomosis of large intestine) | is related to | KBZ.LB.AA (Large intestinal anastomosis, not elsewhere classified) | KBZ.LB.AA captures large intestinal anastomosis but does not convey revision of an existing anastomosis; the SNOMED concept is specifically corrective/revisional rather than primary anastomosis creation. |
| 41536004 (Revision of anastomosis of small intestine) | is related to | KBK.LB.AA (Anastomosis of small intestine, not elsewhere classified) | KBK.LB.AA covers small intestinal anastomosis but does not distinguish revision from primary formation; the revisional nature of the SNOMED concept is lost in the ICHI mapping. |
| 449114005 (Revision of anterior decompression of cervical spinal cord) | is related to | ABA.FC.AA (Release of spinal cord) | ABA.FC.AA captures release (decompression) of the spinal cord as a whole but does not specify the cervical level or anterior approach, nor does it encode the revisional intent of the SNOMED concept. |
| 609217001 (Revision of below knee amputation stump) | is related to | MNB.JN.AA (Below knee amputation) | ICHI has a code for below knee amputation but no distinct code for revision/remodelling of an amputation stump; stump revision involves reshaping/refashioning the residual limb rather than performing a new amputation. |
| 236205009 (Revision of colonic conduit) | is related to | KBP.MK.AA (Repair of colon) | ICHI has no specific code for a colonic conduit or its revision; KBP.MK.AA "Repair of colon" is in the correct anatomical block but does not capture the conduit-specific nature of this procedure. |
| 609178007 (Revision of component of total prosthetic replacement of joint using cement) | is related to | MLJ.KA.AA (Replacement of hip joint device) | ICHI encodes joint prosthesis revision via joint-specific "Replacement of [joint] device" codes (action KA), but codes are joint-specific while the SNOMED concept is generic across all joints; no joint-agnostic revision-of-prosthesis code exists. |
| 58665004 (Revision of corrective procedure on heart) | is related to | HZZ.MK.AA (Repair of heart, not elsewhere classified) | ICHI does not have a specific "revision of prior cardiac correction" code; HZZ.MK.AA is the closest available residual category covering reworking of heart structure after prior intervention. |
| 736618000 (Revision of cutaneous ureterostomy) | is related to | NAE.ML.AA (Reconstruction of ureter) | ICHI does not have a stoma-specific ureterostomy revision code; reconstruction of ureter is the closest structural match because revising a cutaneous ureterostomy involves surgical reconstitution of the ureter-skin conduit. |
| 450795000 (Revision of fusion of joint with articular bone graft) | is related to | MRB.ML.AA (Bone graft of unspecified site) | ICHI has no revision-of-fusion code and no code combining joint fusion revision with articular bone graft; MRB.ML.AA captures only the graft component, not the fusion revision. |
| 12739003 (Revision of ileostomy, complicated) | is related to | KBK.KA.AC (Replacement of tube or enterostomy device of small intestine, not elsewhere classified) | ICHI has no dedicated "revision of ileostomy" code; KBK.KA.AC addresses replacement of enterostomy devices rather than surgical revision of the stoma itself, and the "complicated" qualifier has no ICHI equivalent. |
| 609142002 (Revision of internal fixation of bone of anterior ring of pelvis) | is related to | MKB.JD.AA (Removal of internal device or foreign body from pelvis) | ICHI has no dedicated code for revision of internal bone fixation hardware; the closest available code covers removal of an internal device from the pelvis, but revision typically involves both removal and re-application of fixation hardware. |
| 698240009 (Revision of laser foraminoplasty of lumbar spine) | is related to | MBM.GA.AE (Destruction of lesion of lumbar spine) | ICHI has no dedicated foraminoplasty code; foraminoplasty enlarges the neural foramen via destruction of tissue, and percutaneous destruction of lesion of the lumbar spine is the closest structural match. The revision nature and laser modality are not captured. |
| 428204006 (Revision of laser foraminoplasty of thoracic spine) | is related to | MBG.GA.AE (Destruction of lesion of thoracic spine) | ICHI lacks a foraminoplasty code; percutaneous destruction of lesion of the thoracic spine is the nearest available concept at the correct anatomical target. Neither the revision context nor the laser means is representable in ICHI. |
| 405353000 (Revision of lower limb vascular prosthesis) | is related to | IFA.ML.AA (Reconstruction of artery of lower limb) | ICHI has no specific code for revision of a vascular prosthesis/graft in the lower limb; IFA.ML.AA is the closest concept since revision typically involves reconstructing the arterial segment, but does not encode the pre-existing prosthesis. |
| 26637009 (Revision of mastoidectomy resulting in tympanoplasty) | is related to | CDA.JL.AC (Radical mastoidectomy) | ICHI has no combined mastoidectomy-with-tympanoplasty revision code; radical mastoidectomy is the closest single procedure on the mastoid but captures neither the revision intent nor the tympanoplasty component. |
| 29621002 (Revision of mastoidectomy with apicectomy) | is related to | CDA.JL.AC (Radical mastoidectomy) | ICHI contains no code for mastoidectomy revision or mastoid apicectomy; radical mastoidectomy is the anatomically closest mastoid procedure available but does not encode the revision intent or apicectomy component. |
| 428606004 (Revision of microvascular anastomosis of blood vessel) | is related to | IZE.MK.AA (Repair of blood vessel, not elsewhere classified) | ICHI has no specific code for revision of a microvascular anastomosis; the closest available code is repair of blood vessel NEC, which is a related vascular intervention but does not encode the microvascular technique or revision nature. |
| 87732007 (Revision of ocular implant) | is related to | BZZ.JD.AC (Removal of ocular implant, not elsewhere classified) | ICHI offers only insertion (BZZ.DL.AC) and removal (BZZ.JD.AC) of an ocular implant with no dedicated revision or replacement code; revision surgery typically involves removal and re-implantation, making removal the closest available code, but it captures only part of the procedure. |
| 1259199002 (Revision of open reduction of fracture of bone of spine and internal fixation using bone screw internal spinal fixation system) | is related to | MBG.KA.AA (Replacement of device of thoracic spine) | ICHI has no code combining revision of open fracture reduction with internal screw fixation of the spine; MBG.KA.AA (replacement of a spinal device) is the closest concept covering re-operation on a spinal internal fixation system, but it does not encode the fracture reduction component or the specific bone screw system. |
| 29358007 (Revision of orbital implant) | is related to | BAM.ML.AC (Secondary interventions after removal of eyeball) | ICHI only offers removal (BAM.JD.AC) and reconstruction/secondary interventions (BAM.ML.AC) for the orbit; BAM.ML.AC covers secondary surgical work on orbital implants following enucleation and is the most semantically proximate code, though it is broader and context-dependent rather than a true revision equivalent. |
| 429182007 (Revision of percutaneous intradiscal thermocoagulation of cervical intervertebral disc using radiofrequency probe) | is related to | MBV.GA.AE (Percutaneous destruction of intervertebral disc, not elsewhere classified) | No ICHI code exists for percutaneous destruction specifically of the cervical intervertebral disc; MBV.GA.AE covers percutaneous destruction at an unspecified disc site and is the closest available category. The "revision" (redo) aspect and the radiofrequency/thermocoagulation modality are not distinguished in ICHI, making this a related-but-inexact match. |
| 176933007 (Revision of prosthesis in fallopian tube) | is related to | BlockL5-NMC (Interventions on fallopian tube) | The full fallopian tube interventions block contains codes for device removal (NMC.JD.AA) and device implantation (NMC.DN.AD) separately, but no single ICHI category code encodes the combined concept of revising/replacing a prosthesis already in situ in the fallopian tube. The block is the best organisational fit, but the clinical concept requires multiple ICHI codes to express and so no single category code is equivalent. |
| 54315009 (Revision of prosthesis of heart valve) | is related to | BlockL4-HDE (Interventions on heart valves) | ICHI does have valve-specific "implantation of prosthetic valve in replaced [valve]" codes which represent re-intervention on a previously replaced valve, but they are valve-specific and the SNOMED concept is non-specific as to which valve is involved. The block "Interventions on heart valves" covers all valves, making it the best non-specific anchor, though it is organisational rather than a directly assignable procedure code. |
| 175730007 (Revision of reconstruction involving aorta) | is related to | HIH.ML.AA (Reconstruction of abdominal aorta) | ICHI does not have a concept for "revision of reconstruction" (redo surgery); the reconstruction codes for the aorta cover primary and redo procedures without distinction, and the aortic segment is unspecified in the SNOMED term, making HIH.ML.AA (abdominal aorta, the most common site) only relationally appropriate rather than a direct or wider match. |
| 452751000124105 (Revision of reconstruction of head of right radius) | is related to | MFB.ML.AA (Bone graft to forearm) | ICHI has no specific code for reconstruction or revision of reconstruction of the radial head; MFB.ML.AA covers reconstructive/graft procedures on forearm bone (the block that contains the radius) and is the closest anatomically relevant code, but it describes a bone graft rather than revision of a prior reconstruction and does not capture the right-side laterality or the specific radial head target. |
| 171863003 (Revision of release of peripheral nerve and transposition of peripheral nerve) | is related to | ACA.FC.AA (Release of peripheral nerve) | The SNOMED concept represents a revision combining both release and transposition of a peripheral nerve, but ICHI separates these into ACA.FC.AA (Release of peripheral nerve) and ACA.LJ.AA (Transposition of peripheral nerve) with no combined or revision-specific code; ACA.FC.AA is selected as the primary surgical intent (decompression/release), though the transposition component and the "revision" nature are not captured. |
| 230821004 (Revision of subdural-peritoneal shunt) | is related to | AAE.SN.AA (Management of internal device of ventricles of brain) | ICHI lacks any code for a subdural shunt specifically; the closest conceptual match is management/revision of an intracranial internal device. AAE.SN.AA addresses ventricular device management rather than the subdural space, so the match is related but not equivalent. |
| 230822006 (Revision of subdural-pleural shunt) | is related to | AAE.SN.AA (Management of internal device of ventricles of brain) | As with the subdural-peritoneal shunt, ICHI has no code for subdural shunts to the pleural cavity; AAE.SN.AA (Management of internal device of ventricles of brain) is the nearest available intracranial device management code but targets the ventricles rather than the subdural space and does not capture the pleural terminus. |
| 1344700005 (Revision of trabeculectomy of right eye) | is related to | BBE.LI.AA (Facilitation of circulation in anterior chamber of eye) | Trabeculectomy is a glaucoma drainage procedure creating a fistula from the anterior chamber to reduce intraocular pressure; ICHI has no specific "trabeculectomy" or "revision of trabeculectomy" code, and the nearest functional match — facilitation of circulation in the anterior chamber — captures the physiological target of the procedure but does not encode the revision context or the surgical technique. The right-eye laterality would need an extension code. |
| 5806001 (Revision of tracheostomy scar) | is related to | LAA.JI.AA (Local excision of skin and subcutaneous cell tissue of head or neck) | A tracheostomy scar revision involves local excision or reworking of scar tissue at the neck, which aligns best with local excision of skin and subcutaneous tissue of head or neck; however, ICHI encodes no specific "scar revision" concept, the PTC block covers tracheostomy management (not scar surgery), and the SNOMED concept specifically refers to the scar rather than a general excision. |
| 405372000 (Revision of upper limb vascular prosthesis) | is related to | ICA.ML.AA (Reconstruction of artery of upper limb) | ICHI has no code specifically for revision of a vascular prosthesis in the upper limb; "Reconstruction of artery of upper limb" is the closest available code, as prosthesis revision involves reconstructive work on the arterial conduit, but it does not capture the prosthetic/graft-specific or revision nature of the SNOMED concept, and it is limited to the arterial side whereas the SNOMED concept covers upper limb vascular prosthesis broadly. |
| 440038000 (Revision of vaginal prosthesis by abdominal approach) | is related to | NMH.JD.AA (Removal of internal device or foreign body from vagina via abdominal approach) | The approach (abdominal) matches exactly, but NMH.JD.AA captures removal of a vaginal device rather than the full concept of prosthesis revision, which typically also involves replacement or adjustment; NMH.KA.AC (replacement and refitting of vaginal device) does not specify the abdominal approach, so neither code is a clean fit. |
| 712978001 (Revision thyroidectomy) | is related to | EBA.AE.AA (Reopening of previous thyroid surgery site) | EBA.AE.AA is the only thyroid-specific code in ICHI that explicitly encodes a re-operative context ("reopening of previous thyroid surgery site"), making it the closest match to the concept of a revision thyroidectomy; however, it describes the access/reopening step rather than the repeat excision itself, so it is related but not directly equivalent. |
| 179189003 (Revision to arthroscopic reduction of fracture) | is related to | MMJ.LD.AB (Arthroscopic reduction of knee joint) | ICHI has no generic "arthroscopic reduction of fracture" code and no arthroscopic hip joint reduction code; the SNOMED concept is a non-anatomy-specific revision procedure. The arthroscopic joint reduction codes (e.g. knee) represent the closest structural match, but the anatomical non-specificity and "revision" qualifier mean no equivalent or inexact code applies cleanly — the relationship is conceptual only. |
| 179655000 (Revision to open reduction of fracture dislocation and skeletal traction) | is related to | MBZ.LD.AA (Open reduction of vertebra, not elsewhere classified) | ICHI has no code for revision of open reduction of a generic fracture dislocation combined with skeletal traction; MBZ.LD.AA captures the open reduction of a vertebra (the most plausible spinal context given surrounding concepts), but omits both the revision nature and the skeletal traction stabilization component, making it only relationally linked rather than a true match. |
| 178723000 (Revision to open reduction spinal fracture and bedrest stabilization) | is related to | MBZ.LD.AA (Open reduction of vertebra, not elsewhere classified) | ICHI has no code for revision procedures or for bedrest as a stabilization modality; MBZ.LD.AA covers the primary surgical component (open reduction of the spine at an unspecified level), but the revision context and post-reduction bedrest stabilization are not represented, so the match is only relational. |
| 178725007 (Revision to open reduction spinal fracture and cast stabilization) | is related to | MBZ.LD.AA (Open reduction of vertebra, not elsewhere classified) | MBZ.LD.AA captures the open spinal reduction component, while the cast stabilization would map separately to PZX.LC.AH (Application of cast or splint, NEC); ICHI does not combine revision open reduction with cast application into a single code, so the match is only relational to the dominant surgical element. |
| 178726008 (Revision to open reduction spinal fracture and external fixation) | is related to | MBZ.LD.AA (Open reduction of vertebra, not elsewhere classified) | The open reduction of the spinal fracture is best represented by MBZ.LD.AA, while the external fixation component maps separately to MBZ.LC.AH (Application of external immobilisation device to spine, NEC); ICHI does not have a single code for the combined revision procedure, and the revision nature has no primary-code equivalent. |
| 178724006 (Revision to open reduction spinal fracture and skull traction stabilization) | is related to | MBZ.LD.AA (Open reduction of vertebra, not elsewhere classified) | MBZ.LD.AA covers the open reduction of the spinal fracture, and skull traction for spinal stabilization would separately map to MBZ.LC.AE (Direct or skeletal traction to the spine); no single ICHI code captures the combined revision open reduction plus skull traction intervention, so the match is relational to the primary surgical act only. |
| 441701001 (Revisional posterior lumbar medial facetectomy) | is related to | MBM.JJ.AA (Partial lumbar vertebrectomy) | ICHI has no dedicated code for facetectomy (excision of the articular facet/zygapophyseal joint); MBM.JJ.AA (partial lumbar vertebrectomy) is the closest structural match as facetectomy is a partial bony excision of the lumbar posterior elements, but the anatomical target and clinical intent differ enough that only a relatedto equivalence is appropriate. |
| 413084000 (Rheumatology education) | is related to | MU2.PM.ZZ (Education about muscle functions, not elsewhere classified) | ICHI has no dedicated "rheumatology education" code; rheumatology spans joints, muscles, and autoimmune conditions, and MU2.PM.ZZ (education about muscle functions, NEC) is the closest available category-level code under the musculoskeletal education family, though it captures only part of rheumatology's scope. |
| 698746004 (Risk assessment for patient moving and handling) | is related to | SIA.AA.ZZ (Assessment of lifting and carrying) | SIA.AA.ZZ is the closest ICHI code covering assessment of a person's lifting and carrying capacity, which overlaps with evaluating risks in patient moving and handling; however, the SNOMED concept is specifically an occupational/clinical risk assessment for staff or caregivers moving patients, a safety and ergonomic context that ICHI does not have a dedicated code for. |
| 699127004 (Risk assessment prior to nasogastric feeding) | is related to | KTC.AA.ZZ (Assessment of swallowing) | ICHI has no code for pre-nasogastric feeding risk assessment or for nasogastric tube-related assessment; KTC.AA.ZZ (Assessment of swallowing) is the closest clinically related code, as swallowing safety assessment is the primary clinical concern underpinning this risk evaluation, but the two concepts are not directly equivalent. |
| 385441004 (Rodding of conjunctiva) | is related to | BBA.FA.AA (Incision of conjunctiva) | ICHI has no specific code for conjunctival rodding (passage of a rod/probe through conjunctival tissue); BBA.FA.AA (Incision of conjunctiva) is the closest procedural intervention on the conjunctiva involving a cutting/opening action, but rodding is a distinct mechanical technique not semantically equivalent to simple incision. |
| 287289005 (Ruptured heart aneurysm repair) | is related to | HBB.MK.AA (Repair of right ventricular aneurysm) | The SNOMED concept refers to repair of a ruptured heart aneurysm without specifying a cardiac chamber, whereas ICHI has distinct codes for left ventricular (HBA.MK.AA) and right ventricular (HBB.MK.AA) aneurysm repair but neither specifies rupture; both ICHI codes also do not encode the ruptured/emergency nature of the intervention, making this a related but imprecise match. |
| 278720001 (Sacral incision) | is related to | MBR.FA.AA (Osteotomy of sacral spine) | ICHI has no dedicated "incision of sacrum" category; the FA (Incision) action on the MBR (sacral vertebral column) target only exists as MBR.FA.AA (Osteotomy of sacral spine), which implies a formal bone-cutting procedure rather than a general surgical access incision. The SNOMED concept "sacral incision" is more generic and could refer to an incision through sacral soft tissue or bone, making this a related but imprecise match. |
| 449148006 (Sacrohysteropexy) | is related to | NME.LC.AC (Transvaginal uterosacral ligament suspension) | Both procedures aim to suspend the uterus using sacral/uterosacral structures, but sacrohysteropexy typically fixes the uterus directly to the sacrum (often laparoscopically with mesh), whereas ICHI's code specifies a transvaginal uterosacral ligament suspension — a different approach targeting the ligament rather than the sacrum itself. |
| 168220000 (Sample parasitology general) | is related to | PZX.AH.ZZ (Specimen collection, not elsewhere classified) | ICHI has no "parasitology" category or general parasitology sampling code; the closest available code is the residual specimen collection category, which captures the collection act but loses all parasitology-discipline specificity. Organism-specific tests (e.g., XG8RM3 Plasmodium) exist but are narrower and site-specific, making them unsuitable for this general concept. |
| 269937005 (Sample virology general) | is related to | PZX.AH.ZZ (Specimen collection, not elsewhere classified) | ICHI contains specific viral test extension codes (e.g., XG4U02 Viral nucleic acid amplification test, XG79M8 Culture) but no general virology sampling category; the residual specimen collection code captures only the collection act and discards the virology context. The SNOMED concept is intentionally broad and general, and no single ICHI code covers that scope. |
| 439959000 (Sampling of anus for Papanicolaou smear) | is related to | XG5FH3 (Papanicolaou smear test) | ICHI has no anal Pap smear code — the KBX (anus/anal canal) block contains no cytology or smear entry, and the only Pap smear codes are XG5FH3 (generic, no site) and NMF.AH.XH (cervix-specific). XG5FH3 captures the correct test methodology (Papanicolaou) but loses the anal site specificity entirely. |
| 445865006 (Sampling of fetal blood using ultrasound guidance) | is related to | NMR.AD.AD (Biopsy of fetal structures) | ICHI lacks a dedicated code for fetal blood sampling (cordocentesis/percutaneous umbilical blood sampling); NMR.AD.AD is the closest code targeting fetal structures for a sampling/diagnostic purpose, but it refers to tissue biopsy rather than blood collection, and does not encode the ultrasound guidance means — making this a related but inexact match. |
| 440614003 (Sampling of vagina for Papanicolaou smear) | is related to | NMF.AH.XH (Cervical papanicolaou smear) | The SNOMED concept specifies sampling of the vagina for a Pap smear, while NMF.AH.XH is explicitly a cervical Papanicolaou smear — a related but anatomically distinct target. NMH.AH.XF ("Specimen collection from vagina") captures the vaginal site but lacks the Pap smear specificity, making NMF.AH.XH the closest procedural match even though the target axis differs. |
| 112694000 (Saucerization) | is related to | MRB.JI.AA (Local excision of lesion of bone of unspecified site) | Saucerization is a surgical procedure that creates a saucer-shaped depression by removing bone and overlying tissue (e.g., to treat osteomyelitis or cysts), which most closely resembles local excision of a bone lesion; however, the ICHI code does not capture the specific saucerization technique (creating an open concavity rather than complete lesion removal), and MRB.JG.AA (debridement of bone) is also partially relevant, making this a related rather than equivalent match. |
| 16079003 (Sauer-Bacon operation, abdominoperineal resection) | is related to | KBW.JK.AA (Total excision of rectum) | Abdominoperineal resection (APR) is a combined procedure involving total excision of the rectum and anus with formation of a permanent colostomy; KBW.JK.AA covers the rectal excision component but ICHI does not have a single code capturing the full APR (rectum + anus excision + colostomy), so this is a related rather than equivalent match — a more precise mapping would require multiple codes. |
| 38869002 (Scapulopexy) | is related to | MDB.LE.AA (Scapulocostal fusion) | Scapulopexy (surgical fixation/suspension of the scapula, typically to the thoracic wall or ribs) is conceptually related to scapulocostal fusion, which is the closest ICHI code under interventions on bone of shoulder region; however, "pexy" (suspension/fixation with sutures or wires) is not necessarily the same as bony fusion, and no dedicated scapulopexy code exists in ICHI. |
| 259222004 (Scraping of corneal epithelium) | is related to | BBB.AD.AA (Biopsy of cornea) | ICHI has no specific "scraping" or "epithelial debridement" code for the cornea — the full children list for BBB shows no debridement entry. Biopsy of cornea (BBB.AD.AA) is the closest match as it also involves tissue sampling/removal from the corneal surface, but biopsy implies diagnostic tissue retrieval whereas scraping of the epithelium is more a therapeutic or specimen-collection act, making this a related-but-not-equivalent mapping. |
| 447097009 (Scraping of nail) | is related to | LZZ.JG.AA (Debridement of skin and subcutaneous cell tissue with incision, not elsewhere classified) | The most semantically close ICHI codes are LBD.JG.AA (debridement of nail of finger) and LBF.JG.AA (debridement of nail of toe), but "Scraping of nail" is unspecified as to which digit or limb; since ICHI nail codes are split by finger vs. toe and "scraping" in clinical context (e.g., for fungal sampling) is more specimen collection than therapeutic debridement, neither nail debridement code is a precise match. The NEC debridement code is used as the closest available, acknowledging the conceptual gap. |
| 410410006 (Screening surveillance) | is related to | VDB.VC.ZZ (Public health surveillance concerning screening behaviours) | "Screening surveillance" in SNOMED refers to ongoing monitoring/follow-up of a patient after a screening episode (a clinical act), whereas VDB.VC.ZZ is a public health intervention that monitors population-level screening behaviours; the concepts are related in domain but differ fundamentally in scope and intent. |
| 406187008 (Sedation management) | is related to | PZA.DC.AF (Intravenous anaesthesia) | ICHI has no dedicated "sedation management" code; intravenous anaesthesia is the closest available code covering the administration of IV sedative/anaesthetic agents to the whole body, but it is a specific procedural act rather than the broader clinical management process that sedation management implies. |
| 241712003 (Sedation with analgesic adjunct) | is related to | PZA.DC.AF (Intravenous anaesthesia) | ICHI has no combined sedation-plus-analgesia code; PZA.DC.AF (intravenous anaesthesia) captures the sedation component but omits the analgesic adjunct dimension entirely. The analgesic side could be represented separately by a pain medication administration code, but ICHI does not encode the combined concept as a single code. |
| 386418001 (Seizure management) | is related to | AAA.AI.AH (Electroencephalography monitoring) | ICHI has no dedicated seizure management code; EEG monitoring is a central component of seizure management (monitoring brain electrical activity to detect and titrate treatment of seizures), but it represents only one aspect of the broader management process. No ICHI code covers seizure management as a clinical programme. |
| 313086004 (Self-esteem counseling) | is related to | AUL.PP.ZZ (Counselling for experience of self and time functions) | ICHI has no code explicitly for self-esteem counselling; AUL.PP.ZZ targets the body function "experience of self and time," which in ICF/ICHI terminology encompasses self-concept and self-esteem, making it the closest relevant counselling code. However, it is broader than the SNOMED concept (which is specifically self-esteem-focused) and framed from a functional rather than a purely therapeutic counselling perspective. |
| 1220560005 (Self-induced termination of pregnancy) | is related to | NME.DB.AC (Termination of pregnancy by oral medication) | Self-induced termination of pregnancy most commonly involves self-administered oral medication (misoprostol/mifepristone); NME.DB.AC is the closest ICHI code in that it captures the predominant method. However, ICHI does not encode the "self-induced" (patient-administered without clinician supervision) dimension, and the SNOMED concept could theoretically encompass other self-induced methods beyond oral medication. |
| 305213002 (Sending of medical records to GP) | is related to | UEP.TI.ZZ (Referral to health provider) | ICHI has no code for transmitting clinical records to a specific provider; UEP.TI.ZZ (Referral to health provider) is the closest concept in that it involves coordinating care with a health provider such as a GP, but it does not specifically capture the administrative act of sending medical records. |
| 229515005 (Sensory stimulation using joint compression) | is related to | AVC.PH.ZZ (Training of proprioceptive functions) | Joint compression is a proprioceptive input technique used in sensory integration/occupational therapy to stimulate proprioceptive awareness. ICHI has no specific code for compression as a sensory stimulation means; training of proprioceptive functions (AVC.PH.ZZ) is the closest functional category, though it emphasises therapeutic exercise rather than the specific compression technique. |
| 60173006 (Serum antimicrobial level, immunoassay method) | is related to | XG50T0 (Antimicrobial susceptibility testing) | ICHI has no code for measuring serum antimicrobial drug levels; XG50T0 "Antimicrobial susceptibility testing" is the closest antimicrobial-related laboratory code but covers microbial susceptibility testing rather than quantification of drug concentration in patient serum, making it a related but semantically distinct concept. |
| 32897001 (Serum antimicrobial level, radioimmunoassay method) | is related to | XG50T0 (Antimicrobial susceptibility testing) | As with the immunoassay variant above, ICHI lacks a specific code for serum antimicrobial level measurement by radioimmunoassay; XG50T0 is the nearest antimicrobial laboratory code but addresses susceptibility testing of organisms rather than therapeutic drug monitoring in serum. |
| 271046000 (Serum milk protein antibody measurement) | is related to | XG58X6 (Immunoglobulin plasma levels) | ICHI has no specific code for milk protein (casein/whey) antibody measurement in serum; the closest available code is XG58X6 (Immunoglobulin plasma levels), which captures the concept of measuring immunoglobulin-class antibodies in blood but is not specific to milk protein antigens and covers a broader class of immunoglobulin quantification. |
| 395041007 (Serum neural tube defect screening test) | is related to | XG4B05 (Alpha-fetoprotein immunoassay) | Serum AFP immunoassay is the principal biochemical test used in serum neural tube defect (NTD) screening, making XG4B05 the closest available ICHI code; however, the SNOMED concept refers to the broader NTD screening test (which may also include other analytes and a clinical interpretation), while ICHI codes only the specific AFP immunoassay procedure. |
| 822959001 (Short-term drug therapy) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | ICHI has no concept specifically for short-term drug therapy; "Pharmacotherapy prescription" is the closest administrative act but represents prescribing rather than execution of a time-bounded drug regimen. |
| 265083008 (Shortening of broad ligament of uterus) | is related to | NME.LC.AA (Uterine suspension) | Shortening (plication) of the broad ligament is performed to suspend the uterus, which is what uterine suspension represents in ICHI; however, ICHI does not distinguish the specific ligament or technique. |
| 65161008 (Shortening of muscle) | is related to | MRM.MK.AA (Repair of muscle of unspecified site) | ICHI's only dedicated muscle shortening code (BDA.LL.AA) is restricted to extraocular muscle. MRM.MK.AA is the closest available concept for non-site-specific muscle shortening but is not semantically equivalent. |
| 59982008 (Shortening of uterosacral ligament) | is related to | NME.LC.AC (Transvaginal uterosacral ligament suspension) | Both procedures involve the uterosacral ligament to correct uterine position, but the SNOMED concept denotes shortening of the ligament whereas the ICHI code describes transvaginal suspension using the ligament — related but operationally distinct. |
| 232888003 (Shortening operation on atrioventricular valve papillary muscle) | is related to | HDF.MK.AA (Repair of mitral valve or subvalvar apparatus) | The papillary muscle is part of the subvalvar apparatus, so HDF.MK.AA is structurally related, but it is mitral-specific whereas the SNOMED concept refers to any AV valve, and ICHI does not encode the shortening technique on the papillary muscle. |
| 4827002 (Shower hydrotherapy) | is related to | PZA.ZZ.BS (Hydrotherapy with full immersion, for therapeutic purposes) | Shower hydrotherapy uses directed water spray, whereas PZA.ZZ.BS describes full-body immersion hydrotherapy; related but mechanically distinct, and shower/spray hydrotherapy is not separately coded in ICHI. |
| 228563004 (Simonton technique) | is related to | SDJ.PQ.ZZ (Psychotherapy for handling stress and other psychological demands) | The Simonton technique is a guided imagery/visualisation psychotherapy approach for cancer patients; SDJ.PQ.ZZ covers psychotherapy targeting stress and psychological demands, the closest ICHI concept, but does not capture the distinct mind-body imagery component. |
| 719569004 (Site visit review of new housing development) | is related to | UAM.VC.ZZ (Public health surveillance concerning the built environment, including housing) | A site visit review of a new housing development is a public health surveillance activity directed at housing/built environment, conceptually aligning with UAM.VC.ZZ; however the ICHI code is broader and does not specifically capture the new-development site review. |
| 288038002 (Skene's gland division) | is related to | NAM.FA.AA (Urethrotomy) | Skene's (paraurethral) glands are anatomically associated with the female urethra; ICHI has no dedicated code for paraurethral gland division — NAM.FA.AA targets the urethral lumen rather than the paraurethral gland itself but is the closest related code. |
| 278445004 (Skills training) | is related to | SM1.PH.ZZ (Training in self care, unspecified) | "Skills training" in a clinical/rehabilitation context most commonly refers to training in functional activities and self-care; SM1.PH.ZZ captures this rehabilitation intent but is narrower than the full scope of skills training (which can also encompass cognitive, social, or vocational skills). |
| 385940007 (Skin breakdown control) | is related to | LTC.LD.ZZ (Positioning to protect skin functions) | "Skin breakdown control" is a nursing intervention preventing/managing loss of skin integrity; the only assignable category within the protective-skin-functions block is positioning to protect skin, which is one specific component rather than the full scope of breakdown control. |
| 1230207002 (Skin care during radiation therapy) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | No ICHI code captures the radiation-therapy context or the combined protective/maintenance skin care concept; application of dressing to skin NEC is the closest available code covering a physical skin care act, but it misses the radiation-therapy indication and broader care scope. |
| 406176000 (Skin care: donor site) | is related to | LZZ.JH.AA (Procurement of skin and subcutaneous tissue for graft or flap, not elsewhere classified) | Donor-site skin care manages the wound left after harvesting skin for grafting, which is related to but not the same as the harvest/procurement act itself; LZZ.JH.AA covers procurement, while the SNOMED concept is specifically about post-harvest wound care of the donor site. |
| 406177009 (Skin care: graft site) | is related to | LZZ.ML.AA (Skin graft, not elsewhere classified) | Graft-site skin care is the ongoing management of the recipient site after skin grafting, distinct from the grafting procedure itself; LZZ.ML.AA covers the graft procedure, and no ICHI category specifically represents post-graft wound or site care. |
| 225133004 (Skin cleansing procedure) | is related to | LZZ.JA.AH (Irrigation of skin and subcutaneous cell tissue, not elsewhere classified) | ICHI has no dedicated "skin cleansing" code; irrigation is the closest structural action implying washing of skin, but it connotes a clinical/procedural context (e.g., wound irrigation) rather than routine hygiene cleansing. |
| 119847006 (Skin of trunk transposition) | is related to | LAB.ML.AA (Skin graft to trunk) | ICHI has no dedicated transposition/flap code for skin of trunk; LAB.ML.AA covers transfer of skin tissue to trunk but does not specifically capture the pedicled transposition flap technique that SNOMED implies. |
| 408692002 (Skin rolling) | is related to | MCS.PC.ZZ (Massage of soft tissue of trunk) | Skin rolling is a specific manual therapy technique (lifting and rolling superficial skin/fascia) within the broader family of soft tissue massage; ICHI has no dedicated skin rolling code and MCS.PC.ZZ is the closest available concept, though it is broader and assumes the trunk site. |
| 81121000119107 (Sleep disorder care management) | is related to | PZB.TD.ZZ (Case coordination) | "Care management" for a sleep disorder is a care-coordination activity — planning, organising, and coordinating services for an individual with a chronic condition — aligning best with case coordination; no sleep-specific care management code exists in ICHI. |
| 29359004 (Smear for eosinophils) | is related to | DIA.AH.XA (Specimen collection of blood) | A smear for eosinophils is microscopic examination of a blood/secretion sample to count eosinophils; ICHI captures the specimen collection component but not the microscopic analysis or the specific cell target. |
| 408929001 (Social network analysis) | is related to | UCE.AA.ZZ (Assessment of support from acquaintances, peers, colleagues, neighbours and community members) | Social network analysis maps and assesses an individual's social relationships and support structures; UCE.AA.ZZ addresses assessing community/peer support networks but does not specifically encode network analysis as a methodology. |
| 38256005 (Social network therapy) | is related to | SR1.RE.ZZ (Provision of peer support for engaging in interactions and interpersonal relationships, unspecified) | Social network therapy uses a patient's existing social network as the therapeutic medium, aligning with peer support for interpersonal interactions; ICHI's code is broader and lacks the structured therapeutic modality. |
| 183355006 (Social rehabilitation) | is related to | SX1.RB.ZZ (Practical support with engaging in community, social and civic life, unspecified) | Social rehabilitation aims to restore capacity for social/community participation; SX1.RB.ZZ captures only the practical support action whereas rehabilitation is multi-modal, goal-directed across multiple domains. |
| 410262006 (Social therapy management) | is related to | ATF.PP.ZZ (Counselling for global psychosocial functions) | Social therapy management is a coordinating concept for managing therapeutic interventions targeting social functioning; counselling for global psychosocial functions is the closest available code but captures only one action modality, not the management/coordination intent. |
| 311616003 (Social use of language strategies) | is related to | AUI.PH.ZZ (Training of mental functions of language) | Social use of language strategies refers to pragmatic language use in social contexts; AUI.PH.ZZ targets the cognitive language domain but does not capture the social/pragmatic application or strategy-teaching dimension. |
| 58029008 (Special cytopathology procedure, liquefaction of sputum and smear) | is related to | JBB.AH.XC (Specimen collection of sputum) | The SNOMED concept describes liquefaction and smear-making of sputum; ICHI captures only the upstream specimen collection step, with subsequent processing and microscopy steps lacking dedicated codes. |
| 410176002 (Special diet assessment) | is related to | UAB.AA.ZZ (Assessment of food) | UAB.AA.ZZ covers assessment of food as an environmental/product intervention; the SNOMED concept implies clinical assessment of a patient's diet, whereas the ICHI code sits within environmental interventions on food as a product. |
| 268365006 (Special ENT procedures) | is related to | CZZ.ZY.ZY (Other specified interventions on the ear or mastoid) | "Special ENT procedures" is a broad administrative grouping spanning ear, nose, and throat; ICHI has no single cross-cutting ENT grouping, and the closest assignable code covers only the ear component. |
| 252891008 (Special renal investigation) | is related to | NAA.AE.AA (Exploration of kidney) | ICHI lacks a direct "assessment" or "investigation" category for the kidney; the kidney block NAA contains specific codes (biopsy, imaging, exploration) but no generic diagnostic assessment code. NAA.AE.AA is related but implies a surgical exploration rather than a general investigation. |
| 304851002 (Specific task orientated psychotherapy) | is related to | AU2.PQ.ZZ (Psychotherapy for specific mental functions, not elsewhere classified) | ICHI does not have a dedicated code for task-oriented psychotherapy as a technique; AU2.PQ.ZZ represents psychotherapy applied to specific mental functions and is the most semantically proximate code, but the SNOMED concept refers to a psychotherapy modality defined by its task-oriented technique rather than its target domain. |
| 410415001 (Specimen collection surveillance) | is related to | UBC.VC.ZZ (Population public health surveillance) | ICHI contains no code for monitoring or surveillance of specimen collection activities; the closest structural concept is population-level public health surveillance, which shares the surveillance action axis (VC) but is oriented toward environmental/population targets, not specimen collection monitoring. |
| 439351007 (Speculoscopy) | is related to | NMF.AE.AC (Colposcopy) | Speculoscopy is a cervical visualization technique using a speculum with chemiluminescent light, closely related to colposcopy (NMF.AE.AC) for endoscopic examination of the cervix; however, speculoscopy uses a different light source and instrument, so these are related but not equivalent procedures. |
| 231048006 (Spinal cord cerebrospinal fluid pathway operation) | is related to | ABG.LI.AA (Spinal shunt) | The SNOMED concept is a high-level grouping for any operation on the CSF pathway at the spinal cord level; ABG.LI.AA represents one key intervention (CSF diversion), but the SNOMED concept encompasses a broader class including drainage, decompression, and other pathway manipulations. |
| 287220007 (Spinal cord stereotaxis) | is related to | ABA.GA.AA (Destruction of spinal cord) | ICHI contains no stereotaxis or image-guided spinal cord procedure; stereotaxis of the spinal cord is most commonly performed for lesioning/destruction (e.g., cordotomy for pain), so destruction of spinal cord captures the closest functional intent, but the defining stereotactic technique is not encoded. |
| 178761002 (Spinal epiphysiodesis) | is related to | MBZ.LE.AA (Spinal fusion, not elsewhere classified) | ICHI has no spinal epiphysiodesis code; existing epiphysiodesis codes target only long bones. Spinal epiphysiodesis arrests vertebral growth-plate activity and is functionally distinct from fusion (which joins vertebrae), but MBZ.LE.AA is the closest spinal code involving arrest of motion at the vertebral column. |
| 410360001 (Spiritual care case management) | is related to | SXH.RB.ZZ (Practical support with engaging in religion and spirituality) | ICHI has no code for case management as an administrative/coordination function in spiritual care; SXH.RB.ZZ covers facilitative intervention in the religion/spirituality domain but does not capture the care coordination/case management framing of the SNOMED concept. |
| 105410004 (Spiritual rehabilitation) | is related to | SXH.RB.ZZ (Practical support with engaging in religion and spirituality) | ICHI has no dedicated "spiritual rehabilitation" concept; SXH.RB.ZZ covers facilitated engagement with spiritual activities but does not fully capture the rehabilitation framing of the SNOMED concept. |
| 105390002 (Spiritual therapy) | is related to | SXH.RC.ZZ (Emotional support for engaging in religion and spirituality) | ICHI lacks a specific spiritual therapy code; SXH.RC.ZZ is the closest therapeutic intervention in the spirituality domain but captures only the supportive/emotional dimension rather than a formal therapy modality. |
| 386445000 (Sports injury prevention: youth) | is related to | VC1.PM.ZZ (Education to influence safety-related behaviours, unspecified) | ICHI has no code for sports injury prevention or youth-targeted injury prevention; the closest concept is the safety-related behaviours block with education actions, but none are specific to sport injuries or a youth population. |
| 1343697002 (Staining of anterior lens capsule) | is related to | BBE.DB.AE (Injection into anterior chamber of eye) | Anterior lens capsule staining (typically with trypan blue during cataract surgery) involves introducing a dye into the anterior chamber to visualise the capsule; no ICHI code for staining/dye application to the lens capsule exists, but BBE.DB.AE represents the closest mechanistic match as the dye is delivered via the anterior chamber. |
| 409523000 (Standard respiratory precautions) | is related to | PZB.VE.ZZ (Isolation of a person for infection control) | ICHI has no specific code for respiratory precautions (droplet/airborne PPE bundles); the closest concept is PZB.VE.ZZ which shares the infection control intent, but "respiratory precautions" is a broader practice bundle (masking, ventilation, cohorting) that is not equivalent to patient isolation. |
| 231393008 (Stellate ganglion neurolysis) | is related to | ADB.DC.AE (Injection of anaesthetic into cervical sympathetic nerve) | The stellate ganglion is the inferior cervical (cervicothoracic) sympathetic ganglion; ICHI only codes anaesthetic injection at this site, whereas neurolysis involves injection of a neurolytic agent with intent of permanent nerve destruction, a meaningfully different action not captured by this code. |
| 722299009 (Step up change in telehealth monitoring) | is related to | XG6UP2 (Intervention performed with advice or assistance provided from a distant location) | ICHI's telehealth extension codes describe the mode of delivery (remote/distant location) rather than a management decision to increase monitoring intensity; "step up change" is a care-intensity modification concept that has no equivalent ICHI category. |
| 278735000 (Sternomastoid incision) | is related to | MAM.FA.AA (Scalenotomy) | No ICHI code exists specifically for an incision of the sternocleidomastoid muscle; MAM.FA.AA is the closest available code as it is also a surgical incision/division of a neck muscle within the same block (MAM), but it targets a different muscle. |
| 788428005 (Stimulant therapy) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | ICHI does not have a code specifically for stimulant pharmacotherapy (e.g. methylphenidate for ADHD); PZX.TI.ZZ covers the prescribing action for any pharmacological agent, making it broader and only relatedly matched to the SNOMED concept. |
| 22872007 (Stimulation of carotid sinus with simultaneous electrocardiographic monitoring) | is related to | ITB.AF.AH (Carotid pulse tracing with ECG lead) | ICHI has no code for carotid sinus massage/stimulation with ECG monitoring; ITB.AF.AH involves the carotid artery and simultaneous ECG recording, which overlaps instrumentally, but it is a diagnostic haemodynamic tracing rather than a therapeutic/diagnostic vagal manoeuvre targeting the carotid sinus. |
| 385837006 (Stool specimen care assessment) | is related to | PTB.AA.ZZ (Enterostomy assessment) | No ICHI code exists for assessment specifically related to stool specimen care or nursing care planning for specimen management; PTB.AA.ZZ is the closest related concept (assessment of a stoma patient's care needs) but covers the stoma itself rather than specimen-care planning. |
| 185792005 (Stop smoking monitoring first letter) | is related to | VAB.VB.ZZ (Awareness raising to influence tobacco use behaviours) | ICHI has no code for administrative patient recall letters within a stop smoking programme; VAB.VB.ZZ is in the correct tobacco-use intervention domain but describes awareness raising broadly, not an individually addressed administrative first-contact letter. |
| 185793000 (Stop smoking monitoring second letter) | is related to | VAB.VB.ZZ (Awareness raising to influence tobacco use behaviours) | As with the first letter, ICHI contains no code for a sequenced recall letter; VAB.VB.ZZ covers the same tobacco-use domain but does not capture the administrative, repeated-contact nature of a second reminder letter. |
| 185796008 (Stop smoking monitoring telephone invite) | is related to | VAB.VB.ZZ (Awareness raising to influence tobacco use behaviours) | ICHI does not represent the communication modality (telephone) or the recall-invitation function; VAB.VB.ZZ is the nearest tobacco-behaviour intervention code available but is a broad population-level awareness concept rather than an individual telephone outreach act. |
| 185794006 (Stop smoking monitoring third letter) | is related to | VAB.VB.ZZ (Awareness raising to influence tobacco use behaviours) | ICHI has no concept for a third (final) recall letter in a stop smoking programme; VAB.VB.ZZ provides the closest domain match within the tobacco use intervention hierarchy but does not capture sequence, modality, or the administrative recall nature of the SNOMED concept. |
| 185795007 (Stop smoking monitoring verbal invite) | is related to | VAB.VB.ZZ (Awareness raising to influence tobacco use behaviours) | A verbal (face-to-face) invitation to participate in stop smoking monitoring has no dedicated ICHI code; VAB.VB.ZZ is the best available match within the tobacco use behaviours block, but it describes awareness raising at a broader level rather than an individually directed verbal recall contact. |
| 410418004 (Stress management surveillance) | is related to | SDJ.PN.ZZ (Advising about handling stress and other psychological demands) | "Stress management surveillance" refers to ongoing monitoring of a patient's stress management; no ICHI code exists for surveillance of stress management specifically. SDJ.PN.ZZ (advising) is the most accurate available related concept within the SDJ stress block. |
| 14324001 (Stretching of eyelid) | is related to | BAA.FC.AA (Release of eyelid) | ICHI contains no code specifically for eyelid stretching or lengthening; "Release of eyelid" is the closest structural concept — both involve mechanically altering eyelid tissue — but it implies adhesion/contracture release rather than deliberate stretching/lengthening. |
| 176661003 (Stretching of hymen) | is related to | NMH.JJ.AC (Hymenectomy) | ICHI classifies no procedure specifically for hymenotomy by stretching or dilatation; the only hymen-specific code is hymenectomy. Both share the same clinical indication (imperforate or rigid hymen) but operative technique differs significantly. |
| 172499002 (Stretching of iris) | is related to | BBC.FC.AA (Release of iris) | ICHI has no code for iridodialysis stretching or iris dilation as a surgical manoeuvre; "Release of iris" is the closest available concept — both involve mechanically manipulating iris tissue — but release implies freeing adhesions (synechiolysis) rather than stretching. |
| 397184005 (Stripping of varicose veins of upper limb) | is related to | ICD.JE.AA (Extraction of obstruction from vein of upper limb) | ICHI has no excision or stripping code for veins of the upper limb; ICD.JE.AA is the closest available code but still only loosely related, as stripping is a physical removal of the vein wall rather than an obstruction extraction. |
| 80051000119107 (Stroke care management) | is related to | PZB.TD.ZZ (Case coordination) | ICHI contains no stroke-specific care management code; stroke care management is a care coordination activity for patients with stroke, which maps most closely to PZB.TD.ZZ — a whole-person intervention covering service coordination across providers. |
| 361230002 (Structural psychotherapy) | is related to | SSJ.PQ.ZZ (Psychotherapy for engaging in family relationships) | Structural psychotherapy (Minuchin's structural family therapy) focuses on reorganising family system dynamics; SSJ.PQ.ZZ is the closest ICHI match by target domain, though ICHI does not distinguish psychotherapy modalities. |
| 1359730009 (Subconjunctival implantation of biodegradable collagen matrix) | is related to | BBA.DB.AE (Injection into subconjunctiva) | No ICHI code exists for implantation of a solid matrix into the subconjunctival space; BBA.DB.AE covers injection into the subconjunctiva and is the closest available code anatomically, but "injection" does not represent implantation of a biodegradable device. |
| 782706003 (Subconjunctival insertion of transcleral gelatin stent) | is related to | BBA.DB.AE (Injection into subconjunctiva) | ICHI has no code for subconjunctival device insertion or glaucoma drainage implant; the closest structural match targets the correct anatomical site (subconjunctiva) but codes an injection rather than device implantation, and does not capture the transcleral approach or stent placement. |
| 280383006 (Subdural-pleural shunt operation) | is related to | ABG.LI.AA (Spinal shunt) | ICHI has no code for a subdural-pleural shunt specifically; ABG.LI.AA is the closest related concept capturing CSF diversion from the spinal/subdural compartment, but it does not specify the pleural destination or the subdural origin. |
| 424520006 (Subglottic space suctioning) | is related to | JBA.JB.AC (Suctioning of endotracheal tube) | Subglottic suctioning aspirates secretions pooled above the endotracheal tube cuff in the subglottic space, which is anatomically distinct from suctioning the endotracheal tube lumen itself; no ICHI code exists for subglottic space specifically. |
| 176099006 (Submucous Teflon injection to ureteric orifice) | is related to | NAI.DB.AD (Endoscopic injection into bladder) | There is no ICHI code specifically for injection at the ureteric orifice or vesicoureteral junction; this is the closest anatomically related code, but the target and clinical intent (anti-reflux vs. generic bladder injection) differ enough to warrant relatedto. |
| 386451005 (Substance use treatment: overdose) | is related to | PZA.TE.ZZ (Detoxification) | ICHI has no specific code for managing substance overdose; PZA.TE.ZZ is the closest structural analog — both address the acute clinical response to substance toxicity — but overdose management is conceptually distinct from detoxification/withdrawal treatment. |
| 225249007 (Subzonal insemination) | is related to | NME.DH.AC (Uterine reproductive transfer procedures) | Subzonal insemination is a micromanipulation-based assisted reproduction technique injecting sperm beneath the zona pellucida; ICHI contains no code for this specific technique. NME.DH.AC is the closest reproductive-category code, but subzonal insemination is performed on the oocyte before transfer, making this only a related rather than equivalent match. |
| 117030000 (Sudan IV stain method) | is related to | XG1640 (Immunohisto-chemistry) | Sudan IV is a histochemical staining technique for lipids; ICHI has no specific code for histochemical staining methods, and the closest available code is XG1640, a different but structurally analogous lab technique in the same extension block. |
| 15548004 (Supplementary measure, anesthetic) | is related to | PZA.DC.ZZ (Anaesthesia (whole body, means unspecified)) | ICHI encodes anaesthesia under the DC action axis with specific means codes but has no code for a supplementary or adjunct anaesthetic measure as a standalone concept. The SNOMED concept refers to an adjunct anaesthetic step rather than a primary anaesthetic procedure. |
| 410420001 (Supplies surveillance) | is related to | UAA.VC.ZZ (Public health surveillance concerning products or substances for personal consumption) | Supplies surveillance most closely aligns with ICHI's public health surveillance of products and substances, but the ICHI code is framed around population-level surveillance of personal-consumption products, which is broader than the clinical/logistical supplies monitoring implied by the SNOMED concept. |
| 710870003 (Support for caregiver during weaning) | is related to | VEH.RB.ZZ (Practical support with breastfeeding behaviours) | ICHI encodes breastfeeding-related interventions under VEH but has no distinct code for weaning; VEH.RB.ZZ is the closest related domain, but weaning is a distinct and opposite process. Additionally, ICHI does not model the caregiver as the intervention target. |
| 1172619003 (Support of victim of child abuse) | is related to | VBB.RC.ZZ (Emotional support for family and partner violence behaviours) | ICHI has no dedicated code for supporting victims of child abuse; VBB.RC.ZZ is the closest available code as child abuse falls within the family and partner violence block. However, the ICHI code is framed around violence behaviours broadly and emotional support is narrower than generic support. |
| 1172620009 (Support of victim of elder abuse) | is related to | VBB.RC.ZZ (Emotional support for family and partner violence behaviours) | ICHI has no dedicated code for elder abuse victim support; VBB.RC.ZZ is the closest available code in the family and partner violence block. As with child abuse, the ICHI code does not distinguish victim from perpetrator orientation, nor does it specify the elderly population. |
| 50947004 (Suppression test) | is related to | PZA.AC.ZZ (Provocation test, not elsewhere classified) | ICHI has no specific code for a suppression test; "provocation tests" (PZA.AC.ZZ) are the closest structural category covering formal challenge/stimulation/inhibition tests applied to body functions, but the concept of suppression (inhibition) is the functional opposite of provocation, making this a related rather than equivalent match. |
| 237010009 (Suprapubic pressure on fetal shoulder) | is related to | NMR.LD.AC (Rotation of fetus) | Suprapubic pressure on the fetal shoulder (Mazzanti maneuver) is a specific obstetric manipulation to relieve shoulder dystocia, but ICHI has no code for external suprapubic compression; NMR.LD.AC "Rotation of fetus" is the closest in scope as a manual obstetric fetal manipulation, though the action and target differ from the SNOMED concept. |
| 274338009 (Surgical biopsy of ear) | is related to | CAA.AD.AA (Biopsy of external ear, not elsewhere classified) | ICHI has no single general "biopsy of ear" code — ear biopsies are classified by specific anatomical subsite (external ear, middle ear, inner ear). CAA.AD.AA is the closest residual/NEC category for the ear, but it is restricted to the external ear, whereas the SNOMED concept covers the ear as a whole, making this a related rather than equivalent match. |
| 274336008 (Surgical biopsy of eye) | is related to | BZA.AD.AA (Biopsy of eyeball, not elsewhere classified) | ICHI lacks a single generic "biopsy of eye" code; eye biopsies are subdivided by specific ocular structure (eyelid, conjunctiva, cornea, iris, sclera, etc.). BZA.AD.AA is the NEC category for eyeball biopsies, but "eye" in SNOMED encompasses all ocular and adnexal structures (including eyelid, orbit), so the mapping is related but not equivalent. |
| 173317005 (Surgical exposure of tooth) | is related to | KAG.FA.AC (Incision of gum) | ICHI has no dedicated code for surgical tooth exposure; the procedure is achieved by incising the gingiva (gum) to uncover an unerupted or impacted tooth, making KAG.FA.AC (Incision of gum) the most operationally related code, but it describes only the incision act rather than the full intent of exposing the tooth for orthodontic bonding or eruption. |
| 59578001 (Surgical pneumoperitoneum for collapse of lung) | is related to | JBF.LL.AE (Artificial pneumothorax for collapse of lung) | Both codes describe the deliberate introduction of gas to achieve lung collapse as a therapeutic goal, but the SNOMED concept specifies gas in the peritoneal cavity (pneumoperitoneum) whereas the ICHI code refers to gas in the pleural cavity (pneumothorax); these are anatomically distinct procedures that share the same therapeutic intent. |
| 783170008 (Surgical procedure on thigh) | is related to | BlockL4-MLB (Interventions on musculoskeletal structures of thigh) | ICHI splits the thigh into distinct structural targets — bone (MLB/femur), muscle (MLM), ligament/fascia (MLL), tendon (MLT), and a topographical "thigh" block (BlockL5-PNB) that only holds assistive/rehabilitation codes. No single block or code covers all surgical procedures on the thigh regardless of structure; BlockL4-MLB is the closest surgical grouper but is restricted to musculoskeletal structures, making it related rather than equivalent to the broader SNOMED concept. |
| 9221009 (Surgical treatment of septic abortion) | is related to | NME.JE.AC (Dilatation and curettage of uterus) | ICHI has no code that captures "treatment of septic abortion" as a composite concept; dilatation and curettage of uterus (NME.JE.AC) is the most common surgical intervention performed for septic abortion (evacuation of infected retained products), but the ICHI code does not encode the septic/infectious context or the broader treatment episode. |
| 2659008 (Suture of ligament of lower extremity) | is related to | MML.MK.AA (Repair of ligaments of knee) | ICHI has no single code covering ligament repair across the entire lower extremity; region-specific codes exist (knee, foot/toe, lower leg) but each covers only one sub-region. MML.MK.AA is selected as a representative code for the most common lower extremity ligament repair site, but the SNOMED concept is anatomically broader than any single ICHI category. |
| 38020003 (Suture of ligament of upper extremity) | is related to | MGL.MK.AA (Repair of ligament or fascia of hand or finger) | ICHI has no single code covering ligament repair across the entire upper extremity; codes exist only for specific sub-regions (shoulder, elbow, wrist, hand/finger). MGL.MK.AA is selected as a representative code, but the SNOMED concept is anatomically broader than any individual ICHI category available. |
| 473216000 (Suture plication of artery for control of duodenal ulcer hemorrhage) | is related to | KBI.LA.AD (Endoscopic control of duodenal bleeding) | ICHI has no open surgical suture plication code for duodenal hemorrhage; KBI.LA.AD is the closest available code addressing duodenal bleeding control, but specifies an endoscopic approach whereas the SNOMED concept describes an open suture plication of an artery, making this a related rather than equivalent match. |
| 42150003 (Suture repair of great vessels with cardiopulmonary bypass) | is related to | HZZ.MK.AA (Repair of heart, not elsewhere classified) | ICHI lacks a code specifically for suture repair of great vessels under cardiopulmonary bypass; HZZ.MK.AA covers repair within the heart/great vessel domain but is oriented toward the heart rather than the great vessels themselves, and does not capture the cardiopulmonary bypass modality or the suture technique. |
| 438573009 (Sympathectomy of superficial palmar arch) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | ICHI has no code for periarterial sympathectomy of named hand/forearm arteries; its sympathetic nervous system codes are organized by spinal level with no entry for the palmar arch. ADA.ZZ.ZZ is the residual unspecified category and is related but does not capture the specific target or procedure type. |
| 438894002 (Sympathectomy of ulnar artery) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | ICHI does not code sympathectomy by the specific peripheral artery whose sympathetic supply is interrupted; the ulnar artery is not a recognized ICHI sympathetic nervous system target. ADA.ZZ.ZZ is the only applicable residual code within the sympathetic nervous system block. |
| 439544004 (Sympathectomy using fluoroscopic guidance) | is related to | ADA.ZZ.ZZ (Interventions on sympathetic nervous system, unspecified) | ICHI does not have a code defined by imaging-guidance modality alone; fluoroscopic guidance is an extension/means modifier in ICHI rather than a primary axis of classification. The unspecified sympathetic nervous system residual code is the closest available fit. |
| 274436009 (Syringing to evacuate) | is related to | CAE.JA.AC (Irrigation of external auditory canal) | "Syringing to evacuate" is a generic term most often used in the ear-syringing context, making irrigation of the external auditory canal the closest available match; however, the SNOMED concept is unspecified as to target organ while the ICHI code is restricted to the ear canal, making the relationship related rather than equivalent. |
| 47377006 (T-tube maintenance) | is related to | KCF.SN.AC (Irrigation of cholecystostomy or other biliary tube) | T-tube maintenance refers to the ongoing care and management of a surgically placed biliary T-tube (flushing, checking patency, dressing), and KCF.SN.AC specifically addresses irrigation of a biliary tube. "Maintenance" encompasses a broader set of activities than irrigation alone, making this a related but inexact match. |
| 233138003 (Take down of total cavopulmonary connection) | is related to | HIC.MK.AA (Repair of inferior vena cava) | ICHI contains HIC.LI.AA (Total cavopulmonary connection completion) for the creation of this connection, but has no code for its reversal/takedown. The closest structural match is repair of the inferior vena cava (the venous component involved), but this is only related and not semantically equivalent to the takedown procedure. |
| 234750005 (Take impression for bridge) | is related to | KAE.LC.AC (Application of dental device) | ICHI does not have a specific code for taking a dental impression, which is a preparatory step for fabricating a dental bridge (fixed partial denture). The closest available code covers application of a dental device (the end-stage of the same clinical workflow), making this only relationally equivalent. |
| 234749005 (Take impression for crown) | is related to | KAE.LC.AC (Application of dental device) | As with impression for bridge, ICHI has no code specifically for taking a dental impression for crown fabrication. KAE.LC.AC (Application of dental device) represents the broader clinical workflow endpoint rather than this preparatory step, so the relationship is relatedto rather than equivalent. |
| 234746003 (Take impression for dental or oral tray) | is related to | KAE.AE.AC (Dental examination) | ICHI has no code for taking a dental impression; "Dental examination" is the nearest available code covering clinical dental assessment activities on teeth. The SNOMED concept is a specific preparatory procedural step that falls within the broader examination/assessment encounter but is not semantically equivalent. |
| 234761002 (Take impression for denture) | is related to | KAE.AE.AC (Dental examination) | ICHI contains no impression-taking or denture-impression code; the closest available dental code is "Dental examination," which broadly encompasses clinical dental assessment activities. Taking an impression for a denture is a specific preparatory step not represented at the category level in ICHI. |
| 234765006 (Take impression for mandibular resection prosthesis) | is related to | KAE.AE.AC (Dental examination) | Taking a dental impression for a mandibular resection prosthesis is a preparatory assessment step with no specific ICHI equivalent; KAE.AE.AC is the closest code in the "Interventions on teeth" block, but it does not capture the impression-taking nature or the prosthetic rehabilitation context following resection. |
| 234764005 (Take impression for maxillary obturator) | is related to | KAE.AE.AC (Dental examination) | Taking an impression for a maxillary obturator is a clinical measurement step to fabricate a palatal/maxillary prosthetic device; ICHI has no obturator or impression-specific code, and KAE.AE.AC is the nearest available code within the oral/dental section, though it does not reflect prosthetic intent. |
| 234771000 (Take impression for oral surgery template) | is related to | KAE.AE.AC (Dental examination) | Taking an impression for an oral surgery template (e.g., a surgical stent or guide) is a pre-operative planning procedure; ICHI lacks any template or surgical-guide fabrication code, and KAE.AE.AC within the oral/dental hierarchy is the closest but only broadly related category. |
| 306974004 (Take impression for orthodontic appliance repair) | is related to | KAE.SM.AC (Management of external appliance of tooth) | Taking an impression as part of orthodontic appliance repair is a step within managing an external dental appliance; KAE.SM.AC is the best available ICHI match as it covers interventions involving external dental appliances, though impression-taking specifically is not represented. |
| 234766007 (Take impression for palatal lift prosthesis) | is related to | KAE.AE.AC (Dental examination) | Taking an impression for a palatal lift prosthesis (a device used in velopharyngeal dysfunction) has no ICHI equivalent; KAE.AE.AC is the nearest code in the oral/dental section, though the functional rehabilitation context (soft palate/speech) and the prosthetic fabrication purpose are not captured. |
| 234752002 (Take impression for veneer) | is related to | KAE.MK.AC (Restoration of tooth) | ICHI has no code specifically for taking a dental impression; the Veneered crown entity in ICHI is an extension/material descriptor with no assignable procedural code. Restoration of tooth (KAE.MK.AC) is the closest procedural category encompassing veneer-related restorative work, but it does not capture the preparatory impression-taking step and is considerably broader. |
| 53679005 (Take-down of vascular anastomosis or bypass) | is related to | IZE.MK.AA (Repair of blood vessel, not elsewhere classified) | ICHI has no dedicated "take-down" or "reversal" action for vascular anastomosis or bypass; the closest structural category is repair/reconstruction of a blood vessel NEC, but this does not capture the concept of dismantling a previously created anastomosis or bypass conduit. The relationship is associative rather than hierarchical. |
| 473363001 (Taking of culture from cervix) | is related to | NMH.AH.XF (Specimen collection from vagina) | ICHI has no specific code for specimen collection from the cervix; the closest anatomically is NMH.AH.XF (vagina), and while the cervix block (NMF) exists it contains no specimen-collection child codes. The vaginal specimen collection code is adjacent but not equivalent to a cervical culture. |
| 311459003 (Team meeting) | is related to | PZB.TD.ZZ (Case coordination) | ICHI has no dedicated "team meeting" code; a multidisciplinary team meeting in a healthcare context is functionally a form of case coordination, which PZB.TD.ZZ represents. However, team meetings encompass a broader set of activities beyond coordination alone (e.g., clinical decision-making, review, discharge planning), making this a related rather than equivalent match. |
| 233510003 (Temporal artery cannula insertion) | is related to | IBA.FA.AA (Incision of artery of head and neck) | ICHI does not have a specific code for temporal artery cannulation; the superficial temporal artery falls under the "artery of head and neck, extracranial" (IBA) target block, but no IBA.DL (device insertion) code exists — the closest procedural codes cover incision or stenting, not cannula insertion specifically. IBB.DL.AA (insertion of device into carotid artery) exists only for the carotid, so IBA.FA.AA is the best available but only relatedly captures the procedure's target and access nature. |
| 179197005 (Temporary fixation epiphysis) | is related to | MLB.LE.AA (Epiphysiodesis of femur) | ICHI contains epiphysiodesis codes (MLB.LE.AA for femur, MNB.LE.AA for tibia/fibula) which are permanent physeal arrest procedures, whereas "temporary fixation epiphysis" refers to reversible fixation across a growth plate; no ICHI code specifically represents temporary epiphyseal fixation, and the site is unspecified in the SNOMED concept, making this only a related match. |
| 61247004 (Tenotomy of tensor tympani) | is related to | CBA.FA.AC (Incision of middle ear, not elsewhere classified) | ICHI has no specific code for tensor tympani tenotomy or any middle ear tendon/muscle division; CBA.FA.AC (incision of middle ear, NEC) is the closest available code in the correct anatomical region, but it is only relationally connected rather than semantically equivalent to division of a specific intratympanic tendon. |
| 385731003 (Terminal care management) | is related to | PZB.ZY.ZY (Other health management encounter, not elsewhere classified) | ICHI contains no dedicated terminal care or palliative care management code; the closest residual category is "other health management encounter, NEC" under whole-person interventions. The match is relatedto rather than wider because the residual NEC code is not semantically broader — it is simply a catch-all that does not specifically represent the clinical intent of terminal care management. |
| 287629001 (Therapeutic aspiration of musculoskeletal system) | is related to | MRS.JB.AE (Percutaneous drainage of soft tissue of unspecified site) | The SNOMED concept is non-specific across the entire musculoskeletal system (bone, joint, bursa, muscle, soft tissue), and no single ICHI code covers that full scope; the closest leaf-level code addresses percutaneous drainage of soft tissue at an unspecified site, but it excludes joints, bone, and other musculoskeletal sub-structures that may be intended. |
| 229569007 (Thermal techniques) | is related to | PZX.SD.BQ (Warming of peripheral body temperature, not elsewhere classified) | Thermal techniques in physiotherapy encompasses both heat application (thermotherapy) and cold application (cryotherapy) as a procedural category, but no single ICHI code covers this breadth (PZX.SD.BQ covers only warming, PZX.SE.ZZ covers only cooling), making this only a related concept. |
| 398074008 (Thermotherapy with hot packs) | is related to | MRM.SD.BQ (Muscle hyperthermy) | ICHI's Muscle hyperthermy is the closest available code (hyperthermy means therapeutic application of heat), but the SNOMED concept is unspecified as to target tissue, while the ICHI code is scoped to muscle at an unspecified site, making the match approximate. |
| 302407000 (Thinning of skin flap) | is related to | LAG.JJ.AA (Partial excision of skin and subcutaneous cell tissue of lower limb) | ICHI has no concept of flap thinning/defatting/debulking as a distinct procedure; the closest structural match is partial excision of skin and subcutaneous tissue, but LAG.JJ.AA is site-specific to the lower limb whereas flap thinning is not site-restricted, and the procedural context (revision of an existing flap) is absent. |
| 119812003 (Thoracic artery transposition) | is related to | IDA.ML.AA (Reconstruction of artery of thorax) | ICHI has no dedicated transposition code for thoracic arteries — the action axis LJ (transposition) only appears for nerves and glands. Reconstruction (IDA.ML.AA) is the closest available concept, as transposition involves repositioning/rerouting the artery, which falls under reconstructive vascular surgery. |
| 277917001 (Thoracic impedance cardiography) | is related to | HT2.AB.AH (Other nonoperative cardiac and vascular measurements, not elsewhere classified) | ICHI has no code for impedance cardiography or bioimpedance-based cardiac output measurement; HT2.AB.AH is a residual category for nonoperative cardiac/vascular measurements that could accommodate the technique, but it is a catch-all with no specificity to the impedance method. |
| 709217002 (Thoracic laminectomy) | is related to | ABG.FC.AA (Release of spinal canal) | ICHI does not code laminectomy as a discrete procedure; ABG.FC.AA represents the functional goal of a laminectomy (decompression/release of the spinal canal) but lacks both the thoracic site qualifier and the specific technique (removal of the lamina). |
| 41017003 (Thoracic phlebectomy with graft replacement) | is related to | IDB.ML.AA (Reconstruction of vein of thorax) | IDB.ML.AA captures the thoracic vein site and the reconstructive (graft replacement) component, but omits the excision (phlebectomy) dimension of the SNOMED concept; no ICHI code combines excision and graft reconstruction of a thoracic vein in a single code. |
| 1366318001 (Thoracoscopic decortication of lung using robotic assistance) | is related to | JBF.FC.AB (Thoracoscopic pneumonolysis) | Decortication (removal of the fibrinous peel/cortex from the lung surface) and pneumonolysis (freeing the lung from adhesions) are related but distinct procedures; JBF.FC.AB is the closest thoracoscopic lung-freeing procedure in ICHI, but it does not capture the specific act of stripping pleural cortex, nor the robotic assistance. |
| 238352007 (Thoracoscopic destruction of pleural lesion) | is related to | JCA.GA.AB (Thoracoscopic pleurodesis) | ICHI lacks a dedicated code for thoracoscopic destruction of a discrete pleural lesion; JCA.GA.AB (thoracoscopic pleurodesis) is the closest thoracoscopic intervention on the pleura involving tissue alteration, but pleurodesis targets the entire pleural surface to obliterate the space, whereas the SNOMED concept targets a specific lesion for destruction. |
| 238353002 (Thoracoscopic instillation of substance into pleural cavity) | is related to | JCH.DB.AD (Injection into thoracic cavity) | No ICHI code exists for thoracoscopic instillation specifically into the pleural cavity; JCH.DB.AD covers injection into the thoracic cavity (a broader anatomical target, non-thoracoscopic means), making it a related but imprecise match. The pleural cavity block contains only drainage and device-related codes, with no instillation or injection entry. |
| 120157003 (Thorax destructive procedure) | is related to | JBF.GA.AA (Destruction of lesion or tissue of lung) | "Thorax destructive procedure" is a high-level SNOMED grouper concept with no direct ICHI equivalent — thorax encompasses lung, pleura, chest wall, heart, and mediastinum, whereas JBF.GA.AA applies only to lung parenchyma destruction. No single ICHI assignable code covers destruction across the entire thorax. |
| 120160005 (Thorax manipulation) | is related to | MBG.PA.AH (Manipulation of thoracic spine) | "Thorax manipulation" is a broad SNOMED grouper that could encompass any manual or mechanical intervention on thoracic structures, while MBG.PA.AH is narrowly specific to manipulation (joint mobilisation/thrust technique) of the thoracic spine only. This is the closest ICHI assignable code for a manual manipulation technique in the thorax region, but it does not represent the full scope of the SNOMED concept. |
| 306812009 (Thrombectomy of vascular graft) | is related to | IZE.JE.AA (Extraction of obstruction of blood vessel, not elsewhere classified) | ICHI has no specific code for thrombectomy of a vascular graft (a synthetic or biologic conduit rather than a native vessel); IZE.JE.AA is the residual "not elsewhere classified" blood vessel obstruction extraction code, but it is conceptually aimed at native vessels, making this a related rather than equivalent match. |
| 397028007 (Thrombectomy of vein) | is related to | IZD.JD.AF (Removal of intravascular internal device or foreign body from vein, not elsewhere classified) | ICHI contains no generic "thrombectomy of vein" code — the IZD block (vein NEC) has no JE-action thrombectomy code; the closest structural match is IZD.JD.AF (removal of intravascular foreign body/device from vein NEC), but this conflates thrombus removal with device retrieval, so the SNOMED concept remains relatedto rather than equivalent. |
| 233477006 (Thrombolysis of arteriovenous fistula) | is related to | IZA.DB.AF (Thrombolysis of artery, not elsewhere classified) | ICHI has no code for thrombolysis of an arteriovenous fistula specifically — AV fistulae span both arterial and venous components and are not classified under a dedicated fistula target. IZA.DB.AF (thrombolysis of artery NEC) is the closest structural candidate, but it does not capture the fistula target accurately, making this a related rather than equivalent match. |
| 306813004 (Thrombolysis of vascular graft) | is related to | IZA.DB.AF (Thrombolysis of artery, not elsewhere classified) | ICHI has no code for thrombolysis of a vascular graft specifically; all thrombolysis codes are organised by native vessel type (artery or vein), not graft type. IZA.DB.AF captures the thrombolysis action but the target is an unclassified artery rather than a graft, making this a related-but-imprecise match. |
| 426347000 (Thrombolytic therapy) | is related to | IZA.DB.AF (Thrombolysis of artery, not elsewhere classified) | ICHI has no vessel-agnostic thrombolytic therapy code; all its thrombolysis entries are anchored to specific vessel targets (coronary, pulmonary, carotid, etc.) or NEC vessels, whereas the SNOMED concept is a generic procedure category without specifying a target vessel. |
| 314089003 (Thrombophilia screening test) | is related to | XG5E59 (Partial thromboplastin time) | ICHI has no code for thrombophilia screening as a compound panel; the closest laboratory test present is partial thromboplastin time, which is one component of a thrombophilia workup, making this a related but substantially narrower match. |
| 119974008 (Thymus closure) | is related to | DBA.MK.AA (Repair of thymus) | ICHI does not have a distinct code for thymus closure; repair (action MK) is the closest available action on the thymus, but "closure" as a surgical step (e.g., closing the thymus after incision or in the context of mediastinal closure) is not semantically identical to reconstruction/repair. |
| 41042007 (Tissue conditioning of gingiva of mandible using denture) | is related to | KAG.DL.AC (Insertion of internal device of gingiva) | ICHI has no specific code for tissue conditioning under a denture; this is the closest gingival device-placement code, but it does not capture mandibular specificity, the denture vehicle, or the conditioning purpose. |
| 27261002 (Tissue conditioning of gingiva of maxilla using denture) | is related to | KAG.DL.AC (Insertion of internal device of gingiva) | Maxillary analogue of the mandibular tissue conditioning procedure; the same reasoning applies — KAG.DL.AC is the closest available gingival device-placement code, but does not capture the maxillary site, denture vehicle, or conditioning intent. |
| 53044007 (Tissue thromboplastin inhibitor assay) | is related to | XG5E59 (Partial thromboplastin time) | The tissue thromboplastin inhibitor assay is a lupus anticoagulant confirmatory test using dilute thromboplastin; PTT is a related but distinct clotting screen. No specific ICHI code for lupus anticoagulant testing exists. |
| 232668004 (Tongue traction) | is related to | KAB.LC.AC (Fixation of tongue) | ICHI contains no code for tongue traction as an airway-clearance maneuver; the closest is "Fixation of tongue," which shares the concept of mechanically positioning the tongue but implies surgical stabilisation (e.g., glossopexy) rather than manual traction. |
| 429583007 (Total removal of tension free vaginal tape) | is related to | NAK.JD.AA (Removal of internal device or foreign body from bladder neck) | A tension-free vaginal tape (TVT) is a suburethral mid-urethral sling placed at the bladder neck/proximal urethra to treat stress urinary incontinence; ICHI has no dedicated code for TVT removal, but NAK.JD.AA (removal of internal device from bladder neck) is the closest anatomically and functionally relevant code. The ICHI code does not capture the vaginal approach or the specific tape device, making this an approximate relatedto match. |
| 773119007 (Total removal of transobturator tape) | is related to | NAK.JD.AA (Removal of internal device or foreign body from bladder neck) | A transobturator tape (TOT) is also a mid-urethral sling for stress urinary incontinence, differing from TVT by its obturator passage route; ICHI has no dedicated code for TOT removal, and NAK.JD.AA (removal of internal device from bladder neck) is the closest available code. The approach and specific device are not captured, making this a relatedto approximation. |
| 386476006 (Touch) | is related to | AVD (Touch function target) | SNOMED "Touch" is a bare sensory act/concept, while ICHI AVD represents the "touch function" as a classification target axis entry rather than a specific intervention. No ICHI intervention code directly represents the act of touching; AVD.SC.ZZ (Stimulation of touch functions) or AVD.AA.ZZ (Assessment of touch functions) would be more specific interventions, but the base concept "Touch" as a standalone procedure has no direct ICHI equivalent. |
| 11895000 (Tracer study of eye) | is related to | BAD.BA.BE (Nuclear imaging study of lacrimal apparatus) | ICHI has no nuclear imaging/tracer study code targeting the eye as a whole; BAD.BA.BE (nuclear imaging of the lacrimal apparatus) is the closest imaging code within the visual system block, but it is restricted to the lacrimal apparatus rather than the eye broadly, making this a related-but-not-equivalent match. |
| 428738004 (Tracheoesophageal puncture and insertion of speech prosthesis) | is related to | JBA.DN.AC (Implantation of device into trachea) | No ICHI code captures the combined tracheoesophageal puncture and voice prosthesis insertion as a unified procedure; JBA.DN.AC covers device implantation at the trachea and is the closest anatomical and procedural approximation, but it omits the oesophageal wall component, the puncture creation, and the speech-restoration purpose of the prosthesis. |
| 35411000 (Tractotomy) | is related to | ABA.FA.AA (Cordotomy) | Tractotomy (cutting of nerve tracts, typically in the brainstem or spinal cord for pain relief) and cordotomy (incision of the spinal cord) are closely related neurosurgical pain procedures that both involve dividing neural tissue, but cordotomy is specifically a spinal cord incision whereas tractotomy can target tracts in the brainstem or other CNS locations. No dedicated tractotomy code exists in ICHI; AAA.FB.AA (Division of brain tissue) is an alternative for brainstem tractotomy, but ABA.FA.AA is the closest functional match given the predominant clinical use for spinal pain tractotomy. |
| 39697002 (Transcendental meditation therapy) | is related to | SDJ.PH.ZZ (Training in handling stress and other psychological demands) | ICHI has no code for meditation or mind-body practices specifically; transcendental meditation is a structured mental technique used to reduce stress and promote wellbeing, and the closest ICHI category in scope is training for handling stress and psychological demands (SDJ.PH.ZZ), though this does not capture the meditative/contemplative nature of the intervention. |
| 1351500002 (Transconjunctival application of beta radiation to eye) | is related to | BCA.GA.BA (Destruction of lesion or tissue of posterior structures of eyeball by radiotherapy) | ICHI has no code for transconjunctival beta radiation specifically, and the conjunctiva block (BBA) lacks any radiotherapy destruction code; BCA.GA.BA covers radiotherapy-based destruction of ocular tissue but refers to the posterior segment rather than the conjunctival approach targeting the eye, making it a related but not equivalent match. |
| 234660007 (Transeptal alveolotomy) | is related to | MAG.FA.AA (Osteotomy of mandibular bone) | A transeptal alveolotomy is a surgical division of the interdental alveolar septum (between tooth sockets) to facilitate extraction; ICHI has no specific alveolar septum or alveolotomy code, and MAG.FA.AA (osteotomy of mandibular bone) is the nearest available concept covering jaw bone incision, but it is broader and refers to the whole mandible rather than the interalveolar septum specifically. |
| 60873008 (Transfer of toe to finger, except thumb) | is related to | MGT.LJ.AA (Tendon transfer or transplantation of hand or finger) | ICHI has no specific code for free microsurgical toe-to-finger digit transplantation. MGT.LJ.AA covers tendon transfer to the hand or finger, which is conceptually related but captures only the tendinous component, not the full composite tissue free flap reconstruction that toe-to-finger transfer entails. |
| 232836005 (Transluminal laser aortic valvotomy) | is related to | HDE.LG.AF (Percutaneous transluminal balloon dilatation of aortic valve) | Both describe percutaneous transluminal procedures to relieve aortic valve stenosis, but the SNOMED concept uses laser energy to incise/open the valve while the ICHI code specifies balloon dilatation. No ICHI code exists for laser valvotomy, so HDE.LG.AF is the closest functionally related transluminal aortic valve intervention. |
| 232870006 (Transluminal laser pulmonary valvotomy) | is related to | HDG.LG.AF (Percutaneous transluminal balloon dilatation of pulmonary valve) | Both describe a percutaneous transluminal approach to relieve pulmonary valve stenosis, but SNOMED specifies laser as the means while ICHI specifies balloon dilatation. No ICHI code for laser pulmonary valvotomy exists; HDG.LG.AF is the nearest functionally related code. |
| 175217005 (Transluminal operations on abnormality of great vessel) | is related to | BlockL4-HIA (Interventions on coronary arteries or great vessels) | This is a broad SNOMED grouper for any transluminal procedure on a great vessel abnormality; no single ICHI category code covers this scope, and the closest structural container is the block for interventions on coronary arteries or great vessels, which is also broader in target. |
| 265499009 (Transluminal operations on aorta) | is related to | HIH.LA.AF (Percutaneous transluminal occlusion of aorta) | This SNOMED concept is a generic grouper for all transluminal aortic operations, while HIH.LA.AF represents only one specific transluminal action (occlusion); no single ICHI code or block covers transluminal procedures across the entire aorta for all action types. |
| 233257001 (Transluminal operations on circle of Willis) | is related to | IAA.LG.AF (Percutaneous transluminal dilatation of intracranial artery) | The circle of Willis is an intracranial arterial anastomotic ring, and ICHI has no dedicated code for it; IAA is the closest anatomical target. IAA.LG.AF represents one specific transluminal procedure on intracranial arteries, but the SNOMED concept is a broader grouper. |
| 443039009 (Transplantation of free osteocutaneous flap from great toe and web space using microvascular anastomosis) | is related to | LAG.ML.AA (Skin graft to lower limb) | ICHI has no code for free osteocutaneous composite flap transfer with microvascular anastomosis. LAG.ML.AA is related as the skin component of this composite procedure, but the SNOMED concept is far more specific (osteocutaneous, free flap, microvascular technique, specific donor site). |
| 442840002 (Transplantation of free osteocutaneous flap from iliac crest using microvascular anastomosis) | is related to | XG5ZV8 (Noninnervated free flap) | ICHI has no standalone procedure code for osteocutaneous free-flap transplantation; XG5ZV8 is an extension code that captures the free-flap nature but does not encode the iliac crest donor site, microvascular anastomosis, or composite osteocutaneous tissue. |
| 442945006 (Transplantation of free osteocutaneous flap from metatarsal bone using microvascular anastomosis) | is related to | XG5ZV8 (Noninnervated free flap) | Identical situation — ICHI captures the free-flap type via this extension code but does not encode the metatarsal donor site, microvascular technique, or composite osteocutaneous tissue. No ICHI procedure category exists for metatarsal osteocutaneous free-flap transplantation. |
| 438519003 (Transposition of arteriovenous fistula) | is related to | IZA.SN.AF (Management of arteriovenous shunt) | ICHI has no code specifically for transposition of an arteriovenous fistula; IZA.SN.AF covers revision/management procedures on AV access but does not specifically encode the surgical act of transposing the fistula to a new anatomical position. |
| 384678000 (Transposition of coronary artery) | is related to | HIM.LB.AA (Reimplantation of anomalous origin of coronary artery) | ICHI has no dedicated "transposition of coronary artery" code; reimplantation of an anomalous coronary artery is the closest surgical concept, as both involve detaching and repositioning the coronary artery, but reimplantation implies an anomalous congenital origin rather than elective transposition. |
| 30831008 (Transposition of peritoneal tissue) | is related to | KMA.ML.AA (Graft of peritoneum and peritoneal cavity) | ICHI has no dedicated "transposition of peritoneal tissue" code; the closest is KMA.ML.AA (graft of peritoneum), as peritoneal transposition typically involves moving a pedicled flap or graft of peritoneal tissue, but grafting and transposition are distinct actions (ML = reconstruction/graft vs. LJ = transposition). The LJ action axis is not assigned to peritoneum in ICHI, leaving no better match. |
| 83415006 (Transposition of tissue of pelvic region) | is related to | PAW.MK.AA (Repair of perineum) | ICHI has no code for transposition of tissue of the pelvic region; PAW.MK.AA (Repair of perineum) is the nearest topographical approximation within ICHI's classification of the pelvic/perineal area. The match is only relatedto because "pelvic region" in SNOMED is broader than the perineum, and the action (transposition) is not fully captured by repair. |
| 73650002 (Transposition of vocal cords) | is related to | JAN.MK.AA (Repair of larynx) | ICHI has no dedicated transposition code for the vocal cords — the only vocal cord-specific code is JAN.JK.AD (vocal cordectomy, an excision). Transposition of the vocal cords is a structural repositioning procedure within the larynx; JAN.MK.AA (Repair of larynx) is the closest available code covering structural laryngeal work, but it is a repair action, not a transposition/repositioning, making this a related-but-not-equivalent match. |
| 79373005 (Transposition procedure of small intestine) | is related to | KBK.MK.AA (Repair of small intestine, not elsewhere classified) | ICHI has no transposition or repositioning category for the small intestine; the block KBK offers repair, anastomosis, fixation, and excision codes but no code capturing surgical relocation/transposition. KBK.MK.AA (Repair of small intestine, NEC) is the least-distant available option since transposition may involve structural repair, but the action axis (MK = repair) does not reflect the core intent of transposition (LJ = transposition), making this only a related match. |
| 178776005 (Transthoracic exploration of spine) | is related to | JCH.AE.AA (Exploratory thoracotomy) | Transthoracic exploration of the spine is a spinal surgical approach using a thoracotomy to access the thoracic vertebral column; ICHI has no code combining thoracotomy approach with spinal exploration. JCH.AE.AA (Exploratory thoracotomy) captures the thoracic cavity opening aspect but not the spinal target, while thoracic spine codes (MBG block) cover spinal interventions without a transthoracic exploration action, so no single ICHI code adequately represents this concept. |
| 389043002 (Transurethral cystoscopic removal of blood clot from urinary bladder) | is related to | NAI.JA.AB (Endoscopic irrigation of bladder clots) | ICHI NAI.JA.AB covers endoscopic management of bladder clots via irrigation, whereas the SNOMED concept specifies transurethral cystoscopic removal (evacuation) of a clot — both address the same clinical scenario but through subtly different actions (irrigation vs. direct removal), making this a close but not fully equivalent match. |
| 710296009 (Transurethral incision of external sphincter of urinary bladder) | is related to | NAK.FA.AD (Transurethral endoscopic incision of bladder neck) | The SNOMED concept targets the external urethral sphincter specifically, while ICHI's closest transurethral incision code targets the bladder neck (NAK = neck of urinary bladder). No ICHI code exists for transurethral incision of the urethral sphincter itself; NAM.FA.AD (closed urethrotomy) addresses the urethra body rather than the sphincter, making NAK.FA.AD the closest anatomically adjacent procedure. |
| 449355001 (Transurethral injection of periurethral tissue) | is related to | NAM.DB.AD (Endoscopic injection of implant into urethra) | NAM.DB.AD covers endoscopic (transurethral) injection of implant material into the urethra, which overlaps substantially with periurethral injection for bulking; however, the SNOMED concept refers to the periurethral tissue space rather than directly into the urethra itself, and does not restrict to implant material, so the match is related but not equivalent. |
| 19157005 (Transurethral removal of obstruction from ureter and renal pelvis) | is related to | NAE.JD.AD (Transurethral removal of internal device or foreign body from ureter) | ICHI has no single code covering both ureter and renal pelvis simultaneously, and its ureter removal code (NAE.JD.AD) is oriented toward devices/foreign bodies rather than obstructions generically; the SNOMED concept is broader in scope (covers both anatomical sites and any obstructing material), so the best available code is only relatedly equivalent rather than a clean wider/narrower match. |
| 236200004 (Transurethral resection of ureteric orifice) | is related to | NAI.JI.AD (Transurethral resection of bladder lesion) | ICHI has no dedicated code for resection of the ureteric orifice specifically; NAI.JI.AD is the closest transurethral resection code in the bladder/trigone region but targets a generic bladder lesion rather than the ureteric orifice, making it only relatedly equivalent. |
| 236199002 (Transurethral subureteric injection) | is related to | NAI.DB.AD (Endoscopic injection into bladder) | Subureteric injection (typically of bulking agent to treat vesicoureteral reflux) is performed endoscopically/transurethrally at the submucosal layer beneath the ureteric orifice; ICHI has no specific subureteric or ureteric orifice injection code, and NAI.DB.AD (endoscopic injection into bladder) is the closest anatomical and procedural match, though it is broader and non-specific as to site and purpose. |
| 288008008 (Transurethral ureteric removal) | is related to | NAE.JD.AD (Transurethral removal of internal device or foreign body from ureter) | "Transurethral ureteric removal" in SNOMED refers to removal of a ureter or ureteric material (e.g. calculus, stent, foreign body) via a transurethral approach, and NAE.JD.AD is the closest ICHI code covering transurethral removal from the ureter. However, NAE.JD.AD is scoped specifically to internal devices and foreign bodies, whereas the SNOMED term is broader and could also encompass removal of a ureteric calculus (NAE.JE.AD) or partial ureterectomy (NAE.JJ.AD), making this a related-to rather than equivalent match. |
| 243774003 (Transvaginal fetal blood sampling) | is related to | NMM.AH.XE (Fluid specimen collection from placenta, amnion or cord) | There is no ICHI code for transvaginal fetal blood sampling (cordocentesis/percutaneous umbilical blood sampling) as a distinct procedure. NMM.AH.XE is the closest code covering fluid specimen collection from fetal/placental structures, but it targets placenta, amnion or cord rather than the fetal circulation specifically, and does not encode the transvaginal approach — making this a related but inexact match. |
| 406185000 (Trauma therapy) | is related to | PZB.PQ.ZZ (Psychotherapy for the whole person, not elsewhere classified) | "Trauma therapy" is a broad psychotherapeutic intervention targeting psychological sequelae of traumatic events (e.g., PTSD, trauma-focused CBT, EMDR), which aligns with psychotherapy as action and whole-person as the appropriate target in ICHI's structure. No trauma-specific psychotherapy code exists in ICHI; PZB.PQ.ZZ is the closest residual category, but the match is approximate given the specificity of trauma focus versus general whole-person psychotherapy. |
| 40997008 (Trephine sclerectomy with implant) | is related to | BCB.JI.AA (Local excision of lesion of sclera) | Trephine sclerectomy is a glaucoma filtration procedure involving a punch excision of a full-thickness scleral disc, but ICHI has no dedicated code for this technique; BCB.JI.AA (local excision of lesion of sclera) captures the scleral excision component, yet does not encompass the implant placement that is integral to this SNOMED concept. No closer ICHI code exists. |
| 89793009 (Tri-iodothyronine measurement, total) | is related to | XG6YN3 (Thyroid-stimulating hormone) | ICHI's essential laboratory test list includes XG6YN3 (TSH) as its only thyroid-function entry; there is no dedicated code for T3 (tri-iodothyronine) total measurement. TSH and total T3 are related thyroid panel analytes but are biochemically and clinically distinct tests, making this a related-to rather than an approximate match. |
| 239701002 (Trimming of cast brace) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | ICHI has no specific code for trimming or adjusting an existing cast or brace; the closest available concept covers replacement of an external immobilisation device, which is related but involves a different action (replacement rather than modification/trimming of the existing device). |
| 239697000 (Trimming of plaster cast) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | As with cast brace trimming, ICHI contains no code for trimming or reshaping an existing plaster cast; the replacement of external immobilisation device NEC is the closest available concept in the same functional domain, though it denotes a different action. |
| 398324004 (Tympanocentesis) | is related to | CBB.FA.AC (Myringotomy) | Tympanocentesis is a needle aspiration of fluid through the tympanic membrane whereas myringotomy is a surgical incision of the membrane; both target the tympanic membrane to drain middle ear fluid, but the operative technique (aspiration vs. incision) differs and ICHI has no dedicated aspiration-of-tympanic-membrane code. |
| 182750009 (Ultrafiltration) | is related to | NAA.JC.AF (Renal dialysis) | Ultrafiltration is an extracorporeal procedure that removes excess fluid from the blood and is clinically related to but distinct from renal dialysis — it does not involve solute clearance. ICHI has no specific ultrafiltration code; renal dialysis is the closest related intervention in the kidney block, but it is not semantically equivalent. |
| 711424006 (Ultrasonography guided cholecystostomy) | is related to | KCF.JB.AE (Percutaneous aspiration of gallbladder) | Ultrasonography-guided cholecystostomy is a percutaneous procedure on the gallbladder performed under ultrasound guidance; KCF.JB.AE captures the percutaneous approach to the gallbladder, but the action axis (JB = drainage/aspiration) does not fully equate to a cholecystostomy (creation of a stoma/tube), and the ultrasound guidance is not encoded. KCF.JB.AA (open cholecystostomy) is also present but less apt than the percutaneous variant, making this a related rather than equivalent match. |
| 1179624004 (Ultrasonography guided localization of sentinel lymph node with microbubble contrast) | is related to | DFA.BA.BJ (Ultrasound of lymph node, not otherwise classified) | ICHI has no dedicated code for sentinel lymph node localization or mapping; DFA.BA.BJ represents ultrasound imaging of an unspecified lymph node, which shares the imaging modality and lymph node target but is a diagnostic imaging code rather than a localization/mapping procedure with contrast agent injection, so it is related but not equivalent. |
| 718486002 (Ultrasonography guided penile plethysmography) | is related to | NGM.BA.BJ (Ultrasound of penis) | Plethysmography is a physiological measurement of blood volume/flow (not purely ultrasound imaging), and no ICHI code exists for penile plethysmography or penile blood flow measurement; NGM.BA.BJ captures only the ultrasound-of-penis component and does not represent the haemodynamic assessment purpose of plethysmography. |
| 707849001 (Ultrasonography guided selective destruction of fetus) | is related to | NMR.GA.AC (Destruction of fetus to facilitate delivery) | NMR.GA.AC is the only fetal destruction code in ICHI, but its scope is destruction to facilitate delivery (e.g. craniotomy in obstructed labour), whereas the SNOMED concept refers to selective feticide in multifetal pregnancy under ultrasound guidance — a clinically distinct indication and technique, making the match related but not equivalent. |
| 737086002 (Ultrasonography guided transperineal insertion of biodegradable spacer into perirectal space) | is related to | NGA.DL.AC (Insertion of device into prostate) | There is no ICHI code for insertion of a spacer into the perirectal/rectoprostatic space; NGA.DL.AC (insertion of device into prostate) is the closest procedural analogue as biodegradable spacers (e.g. SpaceOAR) are placed between the prostate and rectum to protect the rectum during prostate radiotherapy, but the ICHI code targets the prostate as the organ and does not reflect the perirectal target site or the transperineal route, making it only relationally equivalent. |
| 709590000 (Ultrasonography of perineum) | is related to | PAW.BA.BB (Perineogram) | PAW.BA.BB is the only imaging intervention coded in the perineum block in ICHI, but 'Perineogram' denotes a radiographic contrast study rather than ultrasound, so the modality differs. No ultrasound-specific code for the perineum exists in ICHI, making this a related but non-equivalent match. |
| 431757007 (Ultrasonography of pleural cavity) | is related to | JBF.BA.BJ (Ultrasound of lung) | ICHI contains no ultrasound code for the pleural cavity or pleura — the pleural cavity block (JCB) holds only drainage and device codes. JBF.BA.BJ (Ultrasound of lung) is the closest anatomical neighbor within the thoracic imaging space, but the target differs (lung parenchyma vs pleural cavity). |
| 1287913003 (Ultrasonography of special sense organ) | is related to | BZA.BA.BJ (Ultrasound of eyeball) | 'Special sense organs' encompass the eye, ear, nose, and taste organs, none of which are grouped under a single ICHI ultrasound code. BZA.BA.BJ covers only the eyeball (one of several special sense organs), and no ICHI code for ear or multi-organ sense organ ultrasound was found; the mapping is therefore relatedto rather than equivalent or wider. |
| 172711001 (Unblocking of ventilation tube through tympanic membrane) | is related to | CBB.JD.AC (Removal of internal device or foreign body from tympanic membrane) | ICHI does not have a code for clearing or unblocking an in-situ ventilation tube (grommet); the closest available code covers removal of an internal device from the tympanic membrane, which captures a related but semantically distinct action (removal vs. patency restoration of a retained tube). |
| 238295009 (Under running of peritoneal cavity bleeding vessel) | is related to | IZE.LA.AA (Occlusion of blood vessel, not elsewhere classified) | "Under running" is a suture-based haemostasis technique applied to a bleeding vessel within the peritoneal cavity; ICHI lacks both a specific under-running code and a peritoneal vessel haemostasis code, so IZE.LA.AA captures the functional goal of stopping blood flow but not the anatomical site, the technique, or the haemostatic context. |
| 386485006 (Unilateral neglect care) | is related to | AUE.PH.ZZ (Training of perceptual functions) | ICHI has no code specific to unilateral (hemispatial) neglect care; the closest available category is "Training of perceptual functions" under the Interventions on perceptual functions block, which covers the rehabilitative domain most relevant to neglect. However, unilateral neglect care is a nursing/multidisciplinary care concept broader than just perceptual training. |
| 315344003 (Upper limb artery cannula insertion) | is related to | ICA.FA.AA (Incision of artery of upper limb) | ICHI has no dedicated cannulation or cannula-insertion code for the upper limb artery — the ICA block contains imaging, dilatation, bypass, and incision codes but not cannulation. ICA.FA.AA is the closest related procedure in the correct anatomical location, but it describes arteriotomy rather than cannula insertion. |
| 363336002 (Upper limb incision) | is related to | MRS.FA.AA (Incision of soft tissue of unspecified site) | ICHI has no assignable code for a generic incision of the upper limb — tissue-specific incisions exist but each is too narrow, and the closest non-tissue-specific soft-tissue incision (MRS.FA.AA) loses the upper limb anatomical site. The SNOMED concept is a broad category covering any upper limb incision, so no satisfactory ICHI equivalent exists. |
| 24683000 (Uptake measurement) | is related to | PZA.BA.BE (Radioisotope scan of whole body) | "Uptake measurement" in nuclear medicine refers to quantifying radiotracer absorption by a tissue or organ, which is functionally performed via radioisotope scanning; PZA.BA.BE is the most generic radioisotope scan code available, but it specifies whole-body scope and imaging modality rather than the quantitative uptake measurement concept. |
| 119987002 (Ureter closure) | is related to | NAE.MK.AA (Repair of ureter) | ICHI has no dedicated code for ureter closure (ligation or occlusion), and the full NAE block contains no closure or ligation category for the ureter. NAE.MK.AA (Repair of ureter) is the closest structurally related procedure on the same organ but represents restoration rather than deliberate closure/occlusion. |
| 82588005 (Ureteral reflux study) | is related to | NAN.BA.BA (X-ray of the urinary system, not elsewhere classified) | ICHI has no dedicated ureteral reflux study code; a reflux study (e.g., voiding cystourethrogram or radionuclide cystogram) is a functional diagnostic imaging procedure of the urinary system, and NAN.BA.BA is the closest available imaging category for the urinary system as a whole. |
| 2178007 (Ureterocentesis) | is related to | NAE.JB.AA (Drainage of ureter) | Ureterocentesis is a needle puncture/aspiration of the ureter to aspirate urine or fluid, but ICHI has no specific aspiration or centesis code for the ureter; NAE.JB.AA (Drainage of ureter) is the closest available code covering fluid removal from the ureter, though it does not specifically denote a needle puncture approach. |
| 44991003 (Urethral sphincter function study) | is related to | NAM.AB.AE (Urethral electromyography) | ICHI has no generic "urethral sphincter function study" code; NAM.AB.AE (urethral electromyography) is a related functional assessment of the urethral sphincter, but it captures only one specific modality of sphincter evaluation, not the full scope of a function study which may also include urodynamics or pressure profilometry. |
| 274476004 (Urethral splinting) | is related to | NAM.LH.AD (Endoscopic dilatation with insertion of urethral device) | Urethral splinting involves placing a temporary supporting device (splint/stent) within the urethra, which most closely corresponds to NAM.LH.AD (endoscopic dilatation with insertion of a urethral device); however, splinting does not necessarily involve dilatation. |
| 26392006 (Urethrovaginal fixation) | is related to | NMH.LC.AA (Vaginal suspension and fixation) | Urethrovaginal fixation is a procedure anchoring the urethra to the vaginal wall (e.g., for fistula repair or incontinence), while NMH.LC.AA covers vaginal suspension and fixation more broadly without specifying the urethral component. It is the closest available ICHI code in the genitourinary fixation domain, but the urethral target axis is absent. |
| 27171005 (Urinalysis) | is related to | XG0NB5 (Urine chemistry) | ICHI lacks a dedicated procedure code for urinalysis as a clinical act; XG0NB5 is an extension code representing the urine chemistry test component, which partially overlaps with urinalysis (a multiparameter examination of urine including chemistry, microscopy, and dipstick). The match is associative rather than semantically equivalent. |
| 410251006 (Urinary catheter care assessment) | is related to | NAI.SN.AC (Management of internal device for urinary bladder) | NAI.SN.AC covers the ongoing management of an internal bladder device (i.e., an indwelling catheter), which is conceptually related to assessing urinary catheter care, but ICHI encodes this as a management action rather than a distinct assessment act. No ICHI code specifically captures catheter care assessment as a standalone assessment intervention. |
| 345713791000132107 (Urinary tract infection prophylaxis) | is related to | PZX.TI.ZZ (Pharmacotherapy prescription) | ICHI has no dedicated prophylaxis concept for urinary tract infections; the closest applicable code is pharmacotherapy prescription, which covers the act of prescribing preventive antimicrobial therapy. The match is only relational because "pharmacotherapy prescription" does not capture the infectious-disease-prevention intent or the urinary tract specificity. |
| 394952009 (Urine 3-methoxytyramine/creatinine ratio) | is related to | PZX.AH.XB (Specimen collection of urine) | ICHI does not include analyte-specific biochemical measurements such as catecholamine metabolite ratios; there is no code for laboratory quantification of 3-methoxytyramine or creatinine in urine. The only directly relevant ICHI code is specimen collection of urine (PZX.AH.XB), which represents only the pre-analytical step and not the measurement itself. |
| 313578007 (Urine sample volume measurement) | is related to | PZX.AH.XB (Specimen collection of urine) | ICHI has no code for measuring the volume of a urine sample; PZX.AH.XB (Specimen collection of urine) is the closest related procedure in that it concerns handling of a urine specimen, but volume measurement is a distinct pre-analytical step not represented in the classification. |
| 785670005 (Urine substance measurement) | is related to | XG0NB5 (Urine chemistry) | XG0NB5 is an ICHI extension code (essential laboratory tests chapter) covering chemical analysis of urine, which is closely related to measuring substances in urine, but it is narrower in scope (chemistry only) while the SNOMED concept covers any substance measurement (e.g., also microscopy or immunoassay). No single ICHI category code covers urine substance measurement in general. |
| 493005 (Urobilinogen measurement, 48-hour, feces) | is related to | PZX.AH.XG (Specimen collection of faeces) | ICHI does not have a code for chemical/analyte measurement of faecal specimens such as urobilinogen; PZX.AH.XG captures only the specimen collection step, not the subsequent analyte measurement. No closer match exists in ICHI for this specific laboratory analyte test on stool. |
| 241454001 (US scan of parathyroid) | is related to | EBB.BA.BE (Parathyroid scan) | ICHI has no dedicated parathyroid ultrasound code — the only imaging code in the parathyroid block is EBB.BA.BE "Parathyroid scan," whose means axis (BE = radionuclide) points to nuclear medicine scintigraphy rather than ultrasound. The target (parathyroid) and imaging action match, but the modality differs fundamentally. |
| 241476005 (US scan of spleen) | is related to | DJA.BA.BE (Spleen scan or function study) | ICHI does not have a dedicated spleen ultrasound code — DJA.BA.BE is the only spleen imaging code but uses means BE (radionuclide), indicating a nuclear medicine scan rather than ultrasound. The target matches but the imaging modality is different, so this is a related but non-equivalent match. |
| 226000002 (Using light bedlinen) | is related to | PZA.SE.ZZ (Cooling of central body temperature) | Using light bedlinen is a nursing comfort measure aimed at reducing heat retention, which is conceptually related to cooling of central body temperature; however PZA.SE.ZZ implies an active cooling intervention rather than a passive environmental adjustment through choice of bedlinen. |
| 786883001 (Vacuum assisted biopsy) | is related to | LCA.AD.AE (Percutaneous biopsy of breast) | Vacuum-assisted biopsy (VAB) is most commonly performed on the breast percutaneously, and LCA.AD.AE is the closest applicable code; however, VAB can be applied to any tissue target and ICHI does not encode the vacuum-assisted technique specifically, making this a related rather than equivalent match. |
| 404915007 (Vacuum assisted skin closure) | is related to | LZZ.DK.AH (Application of dressing to skin or subcutaneous cell tissue, not elsewhere classified) | Vacuum-assisted skin closure (negative pressure wound therapy applied to skin) is a wound management technique; LZZ.DK.AH is the closest ICHI code covering dressing application to skin at an unspecified body site, but it does not capture the vacuum/negative-pressure mechanism. |
| 704133008 (Vaginal care management) | is related to | NMH.JA.AC (Irrigation of vagina) | No ICHI code exists for a general "vaginal care management" concept; NMH.JA.AC (Irrigation of vagina) represents a related but more specific hygienic/care intervention on the vagina. The SNOMED concept is a broad care/management category that could encompass multiple ICHI codes. |
| 74508004 (Vectorcardiogram) | is related to | HTB.AC.AH (Electrocardiogram, not elsewhere classified) | A vectorcardiogram (VCG) is a related but distinct cardiac electrical recording that captures three-dimensional loop vectors rather than the standard 12-lead ECG waveform. HTB.AC.AH is the closest available ICHI code under heart function assessment but represents standard ECG, not VCG specifically. |
| 1255165006 (Vegan diet) | is related to | UAB.TI.ZZ (Prescription of food) | ICHI has no code for a vegan diet specifically or for any particular dietary pattern as an intervention. UAB.TI.ZZ (Prescription of food) is the closest available code but does not capture the plant-based/vegan-specific nature. |
| 119821002 (Vein transposition) | is related to | ICD.LD.AA (Repositioning of vein of upper limb) | ICHI contains only one vein repositioning/transposition code and it is anatomically restricted to the upper limb, whereas the SNOMED concept "vein transposition" is site-unspecified and could refer to any vein. |
| 401205007 (Venous monitoring - lower limb) | is related to | IFD.BA.BJ (Ultrasound of vein of lower limb) | ICHI has no dedicated code for generic venous monitoring of the lower limb; ultrasound is the closest anatomically specific code, but venous monitoring can encompass Doppler studies, plethysmography, or pressure measurements. |
| 712652008 (Video interaction guidance) | is related to | VEJ.PP.ZZ (Counselling about parenting behaviours) | Video interaction guidance (VIG) is a therapeutic intervention using video feedback to improve parent-child interaction; the closest conceptual match does not capture the distinctive video-feedback methodology. |
| 1351795004 (Video oculography) | is related to | BTF.AF.AH (Electrooculography) | Both VOG and EOG measure eye movements but differ fundamentally — VOG uses infrared video cameras, while EOG uses skin electrodes; no ICHI code exists specifically for VOG. |
| 250475009 (Virulence, microbiological test) | is related to | XG50T0 (Antimicrobial susceptibility testing) | Virulence testing (assessing a pathogen's capacity to cause disease) is conceptually distinct from antimicrobial susceptibility testing; this is the closest related laboratory code in the microbiological domain. |
| 417217005 (Visceral manipulation) | is related to | KBZ.LD.AA (Intra-abdominal manipulation of large intestine, not elsewhere classified) | ICHI's manipulation codes represent surgical intra-abdominal manipulation, whereas the SNOMED concept refers to a non-invasive osteopathic/manual therapy technique applied externally. |
| 183353004 (Vocational resettlement) | is related to | SUD.RB.ZZ (Practical support with acquiring, keeping and terminating a job) | Vocational resettlement supports return to/placement in employment after illness or disability; the closest ICHI code addresses practical job support but does not fully capture the resettlement/reintegration sense. |
| 44943004 (Vocational schooling) | is related to | STF.RB.ZZ (Practical support with engaging in vocational training) | Formal vocational education sits in the STF target domain, but ICHI has no code for the schooling event itself — only interventions supporting it; closest actionable code, only approximate. |
| 386495004 (Vomiting management) | is related to | KTQ.ZZ.ZZ (Other interventions on sensations associated with the digestive system, not elsewhere classified) | Vomiting falls under sensations associated with the digestive system; KTQ.ZZ.ZZ is a residual catch-all that loosely captures vomiting management without specifically encoding it. |
| 315637000 (Vulnerable family support) | is related to | UCB.RB.ZZ (Practical support with immediate family) | "Vulnerable family support" is a structured intervention targeting at-risk families; the closest ICHI code covers practical support to the immediate family generally without specificity to vulnerability or safeguarding. |
| 408897005 (Wandering control education) | is related to | ATI.PM.ZZ (Education about energy and drive functions) | Education to manage unsafe wandering (commonly in dementia); the closest ICHI code addresses education about energy and drive functions — the functional domain — but does not specifically encode wandering. |
| 408898000 (Wandering control management) | is related to | ATI.RB.ZZ (Practical support with energy and drive functions) | Active intervention to limit unsafe wandering; the closest ICHI code provides practical support targeting energy and drive functions broadly without capturing the safety-management intent. |
| 219515009 (Watson-Jones operation) | is related to | MNT.LJ.AA (Transfer or transplantation of tendon of ankle) | Watson-Jones reroutes the peroneus brevis tendon through the fibula to reconstruct the lateral ankle ligament — fundamentally a tendon transfer at the ankle; ICHI has no lateral ankle ligament reconstruction code. |
| 415839004 (Wavefront-guided laser assisted in situ keratomileusis) | is related to | BBB.GA.AH (Destruction of corneal lesion) | LASIK ablates corneal stromal tissue to reshape the cornea; ICHI's lesion destruction is scoped to lesions, not refractive reshaping of normal tissue, and no LASIK-specific or wavefront-guided code exists. |
| 225059004 (Well men screening) | is related to | VDB.AA.ZZ (Assessment of screening behaviours) | Well men screening is a preventive health programme; the ICHI code describes assessing a person's screening behaviours rather than conducting the clinical screening itself, making it related but not equivalent. |
| 310432003 (Well woman monitoring invitation) | is related to | VDB.VF.ZZ (Alert concerning screening behaviours) | A "well woman monitoring invitation" is an administrative act of notifying or alerting a woman to attend a health screening programme, which aligns most closely with the ICHI concept of an alert directed at influencing screening-related behaviour. However, the ICHI code targets screening behaviour change at a population/behaviour level rather than a specific individual administrative notification, so the match is relational rather than equivalent. |
| 225062001 (Well women screening) | is related to | VDB.AA.ZZ (Assessment of screening behaviours) | ICHI does not have a code for performing a clinical screening programme for women; the VDB block covers interventions aimed at influencing or assessing screening-related behaviours rather than the screening examination itself. No general "health screening for women" category exists in ICHI, and the closest available concept addresses assessment of whether individuals engage in screening behaviours rather than the clinical act of screening. |
| 250305009 (White blood cell membrane antigen determination) | is related to | XG2GV7 (Lymphocyte subtype enumeration: CD4, CD8, CD20 and CD15/26 cells) | Both concepts involve determining white blood cell surface markers (CD antigens), but SNOMED's concept is broader — covering any WBC membrane antigen on any leukocyte type — while XG2GV7 specifies a fixed panel of lymphocyte CD markers. No generic "leukocyte surface antigen" ICHI code exists, making this a related but non-equivalent mapping. |
| 165566005 (Whole blood clotting time procedure) | is related to | XG8J48 (Prothrombin time and international normalized ratio) | Whole blood clotting time (e.g., the Lee-White test) is a global in-vitro coagulation assessment, whereas XG8J48 specifically measures the extrinsic coagulation pathway via prothrombin time and INR. Both assess haemostatic function, but they test different pathways with different methods; no ICHI code for whole blood clotting time exists. |
| 412806009 (24 hour urine paraprotein output) | is related to | XG58X6 (Immunoglobulin plasma levels) | Paraprotein (monoclonal immunoglobulin) measurement is conceptually related to immunoglobulin quantification, but XG58X6 specifies plasma levels rather than 24-hour urine output, making this a related rather than equivalent match. No urine-specific paraprotein or Bence Jones protein code exists in ICHI. |
| 391359005 (24 hour urine porphobilinogen output) | is related to | XG0NB5 (Urine chemistry) | No specific ICHI code for porphobilinogen (PBG) or porphyria workup exists; XG0NB5 "Urine chemistry" is the most appropriate available code as an extension code for urine chemical analysis, but it is far broader than this specific porphobilinogen assay. |
| 390945002 (24 hour urine porphyrin output) | is related to | XG0NB5 (Urine chemistry) | No specific ICHI code for porphyrin measurement exists; XG0NB5 "Urine chemistry" is the best available code as a broad urine chemical analysis extension code, but it is substantially wider than this specific timed porphyrin excretion measurement. |
| 300027004 (Ablation of nail bed) | is related to | LBD.GA.AA (Destruction of nail of finger) | The nail bed is a specific substructure of the nail unit, and ablation of the nail bed (typically to permanently prevent nail regrowth) most closely corresponds to destruction of the nail of finger, but ICHI lacks a code targeting the nail bed specifically, conflates the entire nail unit rather than the germinal matrix/bed, and does not have a parallel code specifying digit (finger vs. toe), making this only a related match rather than a direct equivalent. |
| 408213002 (Absolute CD16 count) | is related to | XG2GV7 (Lymphocyte subtype enumeration: CD4, CD8, CD20 and CD15/26 cells) | CD16 (FcγRIII, an NK cell and granulocyte marker) is not in the explicit XG2GV7 list, but absolute CD16 counts are performed by the same flow-cytometric lymphocyte-subtype enumeration methodology this ICHI category represents. Aligned with rows 20754 (CD19) and 20756 (CD3) which use XG2GV7 relatedto for the same reason. |
| 408228002 (Absolute CD19 count) | is related to | XG2GV7 (Lymphocyte subtype enumeration: CD4, CD8, CD20 and CD15/26 cells) | CD19 is a B-lymphocyte surface marker used to enumerate B cells, and CD20 is another B-cell marker enumerated in this ICHI panel; however, CD19 itself is not named in the ICHI title, and the panel covers different (though partially overlapping) lymphocyte subsets, making this a related but not equivalent mapping. |
| 413072002 (Absolute CD25 count) | is related to | XG2GV7 (Lymphocyte subtype enumeration: CD4, CD8, CD20 and CD15/26 cells) | CD25 (IL-2Rα, marker of regulatory and activated T cells) is not in the explicit XG2GV7 list, but absolute CD25 counts are performed by the same flow-cytometric lymphocyte-subtype enumeration methodology this ICHI category represents. Aligned with rows 20754 (CD19) and 20756 (CD3) which use XG2GV7 relatedto for the same reason. |
| 313447006 (Absolute CD3 count procedure) | is related to | XG2GV7 (Lymphocyte subtype enumeration: CD4, CD8, CD20 and CD15/26 cells) | CD3 is the pan-T-cell marker used to enumerate total T lymphocytes, while this ICHI code enumerates T-cell subtypes (CD4, CD8) and other lymphocyte subsets; the procedures are methodologically similar (flow cytometric lymphocyte subset enumeration) but CD3 enumeration is not specifically represented in the panel. |
| 408211000 (Absolute CD56 count) | is related to | XG2GV7 (Lymphocyte subtype enumeration: CD4, CD8, CD20 and CD15/26 cells) | CD56 (NCAM, primary NK-cell marker) is not in the explicit XG2GV7 list, but absolute CD56 counts are performed by the same flow-cytometric lymphocyte-subtype enumeration methodology this ICHI category represents. Aligned with rows 20754 (CD19) and 20756 (CD3) which use XG2GV7 relatedto for the same reason. |
| 229414006 (Accessory mobilization of the costovertebral joint) | is related to | MBG.PB.AH (Mobilisation of thoracic spine) | ICHI has no dedicated costovertebral joint mobilisation code; the costovertebral joint (rib-vertebra articulation) falls within the thoracic spine region, making MBG.PB.AH the closest anatomical match, but it targets the thoracic vertebral column rather than the specific costovertebral joint. The additional specificity difference (accessory technique vs. general mobilisation) further separates the concepts. |
| 406535000 (Accommodation needs assessment) | is related to | UEE.AA.ZZ (Assessment of housing services, systems and policies) | UEE.AA.ZZ is the closest available ICHI code, covering assessment in the housing/accommodation domain, but it is oriented toward systemic or policy-level assessment of housing services rather than an individual patient's accommodation needs (as typically performed in occupational therapy or discharge planning). No more precise individual-level accommodation needs assessment code exists in ICHI. |
| 73764009 (Acetabuloplasty) | is related to | MKB.ML.AA (Bone graft to pelvis) | Acetabuloplasty is a reconstructive/reshaping procedure of the acetabulum that may involve grafting, but ICHI has no acetabulum-specific reconstructive code; MKB.ML.AA (bone graft to pelvis) is the closest related intervention in the pelvic bone section, though it captures only one component of what acetabuloplasty entails. MLJ.MK.AA (repair of hip joint) was also considered but the acetabulum is a bone structure, not the joint proper, making the pelvic bone block more appropriate. |
| 18816008 (Acromioplasty with synthetic joint prosthesis) | is related to | MDJ.DN.AA (Implantation of device into shoulder joint) | ICHI has no dedicated acromioplasty or shoulder arthroplasty code; MDJ.DN.AA captures the prosthesis insertion but does not reflect the acromioplasty (bone reshaping) component, making this a related but inexact match. |
| 313105004 (Action therapy) | is related to | AS1.PQ.ZZ (Psychotherapy for mental functions, unspecified) | "Action therapy" (psychodrama, sociodrama, related action methods) is a specific psychotherapeutic modality; ICHI has no discrete code for it, but AS1.PQ.ZZ is the closest conceptual category. The match is relatedto because action therapy is a specific technique within psychotherapy, not synonymous with all psychotherapy. |
| 229263007 (Active lower limb movements) | is related to | MTB.PG.ZZ (Assisting and leading exercise for mobility of joint functions) | Active lower limb movements are patient-performed active ROM exercises for lower limb joints; MTB.PG.ZZ covers joint mobility exercise but implies therapist-led activity and lacks limb specificity, making it a related but not equivalent match. |
| 229262002 (Active pelvic movements) | is related to | MTB.PG.ZZ (Assisting and leading exercise for mobility of joint functions) | Active pelvic movements are self-performed active ROM/mobility exercises for the pelvic region; MTB.PG.ZZ is the closest available joint mobility exercise code but not region-specific and implies therapist-led assistance. |
| 229253004 (Active upper limb movements) | is related to | MTB.PG.ZZ (Assisting and leading exercise for mobility of joint functions) | Active upper limb movements represent patient-performed active ROM exercises for upper limb joints; MTB.PG.ZZ is the closest joint mobility exercise code but lacks upper limb specificity and implies therapist-led activity. |
| 228649000 (Activity adaptation) | is related to | SDA.PH.ZZ (Training in undertaking tasks) | ICHI has no code specifically for adapting/modifying an activity to suit a person's capacity; "Training in undertaking tasks" is the closest concept but does not directly represent the OT process of redesigning an activity. |
| 41838008 (Activity group therapy) | is related to | PZB.PQ.ZZ (Psychotherapy for the whole person, not elsewhere classified) | ICHI does not have a dedicated code for group-based therapeutic activity sessions; PZB.PQ.ZZ is the broadest non-body-system-specific psychotherapy code available, but the SNOMED concept emphasises purposeful activity as the therapeutic medium in a group setting. |
| 394874004 (Acu-reflexology) | is related to | PZX.SB.AH (Acupressure, not elsewhere classified) | Acu-reflexology combines foot/hand reflexology with acupressure technique; ICHI has no reflexology code, and PZX.SB.AH (Acupressure NEC) is structurally the closest match covering the acupressure component, though it does not capture the reflex-zone theory. |
| 236969007 (Acupuncture for induction of labor) | is related to | PZX.SP.AE (Acupuncture, not elsewhere classified, percutaneous) | ICHI has no code combining acupuncture with labour induction; PZX.SP.AE captures the acupuncture technique but omits the obstetric goal, while uterine induction codes capture the intent but not the acupuncture means — a related-to rather than wider match. |
| 231111004 (Acupuncture-like transcutaneous electrical nerve stimulation) | is related to | AXA.SC.BP (Electrical stimulation for pain) | AL-TENS delivers low-frequency high-intensity electrical stimulation at acupuncture points for pain relief; AXA.SC.BP captures the electrical stimulation modality and pain target but does not encode the acupuncture-point specificity that distinguishes AL-TENS from conventional TENS. |
| 234828002 (Adjust extraoral maxillofacial prosthesis) | is related to | MAG.SM.AH (Management of external appliance of mandible) | ICHI has no "maxillofacial prosthesis" or "facial prosthesis" code; MAG.SM.AH is the closest structural match as it covers management of an external appliance on craniofacial bone, but it is mandible-specific and does not cover orbital, nasal, or auricular extraoral prostheses. |
| 307118000 (Adjust fixation of mandible) | is related to | MAG.LC.AH (External immobilisation of mandible) | MAG.LC.AH covers external immobilisation (fixation) of the mandible and is the only mandible-fixation code in ICHI, but its action axis describes application of the fixation device rather than adjustment of an existing fixation, so the match is related but not equivalent. |
| 413452000 (Adjustable refractive surgery) | is related to | BBB.GA.AH (Destruction of corneal lesion) | ICHI has no dedicated code for refractive surgery; BBB.GA.AH captures tissue destruction of the cornea which overlaps with ablative refractive techniques, but it refers to lesion destruction rather than refractive correction, making the relationship related rather than equivalent or directional. |
| 310834008 (Adjustment of external fixator) | is related to | PZX.KB.AH (Replacement of external immobilisation device, not elsewhere classified) | ICHI has no dedicated "adjustment of external fixator" code; the closest concept is replacement/management of an external immobilisation device NEC, which is a related but distinct action (replacement vs. adjustment). |