US Core Implementation Guide
9.0.0 - CI Build
US Core Implementation Guide
9.0.0 - CI Build
US Core Implementation Guide, published by HL7 International / Cross-Group Projects. This guide is not an authorized publication; it is the continuous build for version 9.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/US-Core/ and changes regularly. See the Directory of published versions
| Page standards status: Informative |
The following table maps the VSAC Code System Names to the FHIR Code System URIs. It is based off the VSAC's FHIR Server Capability Statement. This information is also available as a csv or excel file.
| VSAC Code System Name | FHIR URI |
|---|---|
| ActMood | http://terminology.hl7.org/CodeSystem/v3-ActMood |
| ActPriority | http://terminology.hl7.org/CodeSystem/v3-ActPriority |
| ActReason | http://terminology.hl7.org/CodeSystem/v3-ActReason |
| ActRelationshipType | http://terminology.hl7.org/CodeSystem/v3-ActRelationshipType |
| ActStatus | http://terminology.hl7.org/CodeSystem/v3-ActStatus |
| AddressUse | http://terminology.hl7.org/CodeSystem/v3-AddressUse |
| AdministrativeGender | http://terminology.hl7.org/CodeSystem/v3-AdministrativeGender |
| AdministrativeSex | http://terminology.hl7.org/CodeSystem/v2-0001 |
| AllergyIntoleranceClinicalStatusCodes | http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical |
| AllergyIntoleranceVerificationStatus | http://terminology.hl7.org/CodeSystem/allergyintolerance-verification |
| CDCNHSN | https://www.cdc.gov/nhsn/cdaportal/terminology/codesystem/cdcnhsn.html |
| CDCREC | urn:oid:2.16.840.1.113883.6.238 |
| CDT | http://www.ada.org/cdt |
| CPT | http://www.ama-assn.org/go/cpt |
| CVX | http://hl7.org/fhir/sid/cvx |
| ConditionClinicalStatusCodes | http://terminology.hl7.org/CodeSystem/condition-clinical |
| ConditionVerificationStatus | http://terminology.hl7.org/CodeSystem/condition-ver-status |
| Confidentiality | http://terminology.hl7.org/CodeSystem/v3-Confidentiality |
| DataAbsentReason | http://terminology.hl7.org/CodeSystem/data-absent-reason |
| DiagnosisRole | http://terminology.hl7.org/CodeSystem/diagnosis-role |
| DischargeDisposition | http://terminology.hl7.org/CodeSystem/v2-0112 |
| EntityNamePartQualifier | http://terminology.hl7.org/CodeSystem/v3-EntityNamePartQualifier |
| EntityNameUse | http://terminology.hl7.org/CodeSystem/v3-EntityNameUse |
| EventTiming | http://hl7.org/fhir/event-timing |
| ExampleDiagnosisTypeCodes | http://terminology.hl7.org/CodeSystem/ex-diagnosistype |
| ExampleProcedureTypeCodes | http://terminology.hl7.org/CodeSystem/ex-procedure-type |
| HCPCS | http://www.cms.gov/Medicare/Coding/HCPCSReleaseCodeSets |
| HSLOC | https://www.cdc.gov/nhsn/cdaportal/terminology/codesystem/hsloc.html |
| HealthCareProviderTaxonomy | http://nucc.org/provider-taxonomy |
| ICD10CM | http://hl7.org/fhir/sid/icd-10-cm |
| ICD10PCS | http://www.cms.gov/Medicare/Coding/ICD10 |
| ICD9CM | http://hl7.org/fhir/sid/icd-9-cm |
| LOINC | http://loinc.org |
| LanguageAbilityMode | http://terminology.hl7.org/CodeSystem/v3-LanguageAbilityMode |
| LanguageAbilityProficiency | http://terminology.hl7.org/CodeSystem/v3-LanguageAbilityProficiency |
| LivingArrangement | http://terminology.hl7.org/CodeSystem/v3-LivingArrangement |
| MED-RT | http://www.nlm.nih.gov/research/umls/MED-RT |
| MaritalStatus | http://terminology.hl7.org/CodeSystem/v3-MaritalStatus |
| MediaType | http://terminology.hl7.org/CodeSystem/v3-mediaType |
| MedicationRequestCategoryCodes | http://terminology.hl7.org/CodeSystem/medicationrequest-category |
| NCI | http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl |
| NDFRT | http://hl7.org/fhir/ndfrt |
| NullFlavor | http://terminology.hl7.org/CodeSystem/v3-NullFlavor |
| ObservationCategoryCodes | http://terminology.hl7.org/CodeSystem/observation-category |
| ObservationInterpretation | http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
| ObservationValue | http://terminology.hl7.org/CodeSystem/v3-ObservationValue |
| ParticipationFunction | http://terminology.hl7.org/CodeSystem/v3-ParticipationFunction |
| ParticipationMode | http://terminology.hl7.org/CodeSystem/v3-ParticipationMode |
| ParticipationType | http://terminology.hl7.org/CodeSystem/v3-ParticipationType |
| PresentOnAdmission | https://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/HospitalAcqCond/Coding |
| RXNORM | http://www.nlm.nih.gov/research/umls/rxnorm |
| ReligiousAffiliation | http://terminology.hl7.org/CodeSystem/v3-ReligiousAffiliation |
| RoleClass | http://terminology.hl7.org/CodeSystem/v3-RoleClass |
| RoleCode | http://terminology.hl7.org/CodeSystem/v3-RoleCode |
| RoleStatus | http://terminology.hl7.org/CodeSystem/v3-RoleStatus |
| SNOMEDCT | http://snomed.info/sct |
| SOPT | https://nahdo.org/sopt |
| TaskCode | http://hl7.org/fhir/CodeSystem/task-code |
| TimingEvent | http://terminology.hl7.org/CodeSystem/v3-TimingEvent |
| UCUM | http://unitsofmeasure.org |
| UMLS | http://www.nlm.nih.gov/research/umls |
| UNII | http://fdasis.nlm.nih.gov |
| USCoreConditionCategoryExtensionCodes | http://hl7.org/fhir/us/core/CodeSystem/condition-category |
IG © 2026+ HL7 International / Cross-Group Projects. Package hl7.fhir.us.core#9.0.0 based on FHIR 4.0.1. Generated 2026-02-25
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