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 8.0.0-ballot 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

Terminology

Page standards status: Trial-use

This page lists all the ValueSets, CodeSystems, and ConceptMaps defined as part of the US Core Implementation Guide. For more information on using codes in US Core, see the FHIR Terminology section in the FHIR specification and the Coded Elements section in this guide.

Value Sets

Most value sets used in this guide are defined in the base FHIR specification, HL7 Terminology (THO), or Value Set Authority Center (VSAC)]. However, the following value sets have been defined for this implementation guide and are not listed elsewhere.

• Detailed ethnicity
• Detailed Race
• Language codes with language and optionally a region modifier
• US Core Narrative Status
• OMB Ethnicity Categories
• OMB Race Categories
• US Core Clinical Note Type
• US Core Clinical Result Observation Category
• US Core Condition Codes
• US Core Diagnostic Report Category Codes
• US Core DocumentReference Category
• US Core DocumentReference Type
• US Core Goal Codes
• US Core Laboratory Test Codes
• US Core Location Type
• US Core Non Laboratory Codes
• US Core Status for Smoking Status Observation
• US Core Problem or Health Concern
• US Core Procedure Codes
• US Core Provenance Participant Type Codes
• US Core Screening Assessment Condition Category
• US Core Screening Assessment Observation Category
• US Core Screening Assessment Observation Maximum Category
• US Core ServiceRequest Category Codes
• US Core Simple Observation Category
• US Core Specimen Condition
• USPS Two Letter Alphabetic Codes

Value Sets Used in US Core

The following table lists all the Value sets used in US Core and where they can be found. This information is also available as a csv or excel file.

Value Set Sources:

• VSAC
• FHIR
• US CORE
• PHINVADS
• THO

Row #	Value Set	Profiles Where Used	Source
1		StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-medicationdispense	FHIR
2	ActEncounterCode	StructureDefinition/us-core-encounter	THO
3	ActPharmacySupplyType	StructureDefinition/us-core-medicationdispense	THO
4	ActPriority	StructureDefinition/us-core-encounter	THO
5	ActSubstanceAdminSubstitutionCode	StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-medicationdispense	THO
6	AddressType	StructureDefinition/us-core-practitioner StructureDefinition/us-core-patient StructureDefinition/us-core-location StructureDefinition/us-core-organization	FHIR
7	AddressUse	StructureDefinition/us-core-practitioner StructureDefinition/us-core-patient StructureDefinition/us-core-location StructureDefinition/us-core-organization	FHIR
8	AdministrativeGender	StructureDefinition/us-core-practitioner StructureDefinition/us-core-patient StructureDefinition/us-core-relatedperson	FHIR
9	Admit source	StructureDefinition/us-core-encounter	FHIR
10	Advance Directives Content Type	StructureDefinition/us-core-adi-documentreference	VSAC
11	Advance Healthcare Directive Categories Grouper	StructureDefinition/us-core-adi-documentreference	VSAC
12	AllergyIntolerance Clinical Status Codes	StructureDefinition/us-core-allergyintolerance	FHIR
13	AllergyIntolerance Verification Status Codes	StructureDefinition/us-core-allergyintolerance	FHIR
14	AllergyIntoleranceCategory	StructureDefinition/us-core-allergyintolerance	FHIR
15	AllergyIntoleranceCriticality	StructureDefinition/us-core-allergyintolerance	FHIR
16	AllergyIntoleranceSeverity	StructureDefinition/us-core-allergyintolerance	FHIR
17	AllergyIntoleranceType	StructureDefinition/us-core-allergyintolerance	FHIR
18	Answer Set with Yes No and Unknowns	StructureDefinition/us-core-interpreter-needed StructureDefinition/us-core-observation-adi-documentation	VSAC
19	Birth Sex	StructureDefinition/us-core-birthsex	VSAC
20	Body Length Units	StructureDefinition/us-core-head-circumference StructureDefinition/us-core-body-height	FHIR
21	Body Temperature Units	StructureDefinition/us-core-body-temperature	FHIR
22	Body Weight Units	StructureDefinition/us-core-body-weight	FHIR
23	CVX Vaccines Administered Vaccine Set	StructureDefinition/us-core-immunization	VSAC
24	Care Plan Activity Kind	StructureDefinition/us-core-careplan	FHIR
25	Care Plan Activity Outcome	StructureDefinition/us-core-careplan	FHIR
26	Care Plan Category	StructureDefinition/us-core-careplan	FHIR
27	Care Plan Intent	StructureDefinition/us-core-careplan	FHIR
28	Care Team Member Function	StructureDefinition/us-core-careteam StructureDefinition/us-core-practitionerrole	VSAC
29	Care Team category	StructureDefinition/us-core-careteam	FHIR
30	CarePlanActivityStatus	StructureDefinition/us-core-careplan	FHIR
31	CareTeamStatus	StructureDefinition/us-core-careteam	FHIR
32	Codes for Immunization Site of Administration	StructureDefinition/us-core-immunization	FHIR
33	Common Languages	StructureDefinition/us-core-specimen StructureDefinition/us-core-documentreference StructureDefinition/us-core-observation-pregnancyintent StructureDefinition/us-core-procedure StructureDefinition/us-core-observation-lab StructureDefinition/us-core-vital-signs StructureDefinition/us-core-careplan StructureDefinition/us-core-organization StructureDefinition/us-core-adi-documentreference StructureDefinition/us-core-heart-rate StructureDefinition/us-core-head-circumference StructureDefinition/us-core-practitioner StructureDefinition/us-core-practitionerrole StructureDefinition/us-core-body-height StructureDefinition/us-core-smokingstatus StructureDefinition/us-core-patient StructureDefinition/us-core-provenance StructureDefinition/us-core-observation-clinical-result StructureDefinition/us-core-respiratory-rate StructureDefinition/us-core-body-temperature StructureDefinition/us-core-questionnaireresponse StructureDefinition/us-core-condition-encounter-diagnosis StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/pediatric-weight-for-height StructureDefinition/us-core-implantable-device StructureDefinition/us-core-observation-pregnancystatus StructureDefinition/us-core-medicationdispense StructureDefinition/us-core-treatment-intervention-preference StructureDefinition/pediatric-bmi-for-age StructureDefinition/us-core-pulse-oximetry StructureDefinition/us-core-diagnosticreport-lab StructureDefinition/us-core-encounter StructureDefinition/us-core-bmi StructureDefinition/head-occipital-frontal-circumference-percentile StructureDefinition/us-core-coverage StructureDefinition/us-core-servicerequest StructureDefinition/us-core-simple-observation StructureDefinition/us-core-diagnosticreport-note StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-care-experience-preference StructureDefinition/us-core-medication StructureDefinition/us-core-goal StructureDefinition/us-core-careteam StructureDefinition/us-core-observation-screening-assessment StructureDefinition/us-core-relatedperson StructureDefinition/us-core-immunization StructureDefinition/us-core-body-weight StructureDefinition/us-core-observation-occupation StructureDefinition/us-core-average-blood-pressure StructureDefinition/us-core-observation-adi-documentation StructureDefinition/us-core-observation-sexual-orientation StructureDefinition/us-core-location StructureDefinition/us-core-allergyintolerance StructureDefinition/us-core-blood-pressure	FHIR
34	Common Tags	StructureDefinition/us-core-diagnosticreport-lab StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/us-core-encounter StructureDefinition/us-core-observation-lab	FHIR
35	Common substances for allergy and intolerance documentation including refutations	StructureDefinition/us-core-allergyintolerance	VSAC
36	CompositionStatus	StructureDefinition/us-core-adi-documentreference StructureDefinition/us-core-documentreference	FHIR
37	Condition Category Codes	StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/us-core-condition-encounter-diagnosis	FHIR
38	Condition Clinical Status Codes	StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/us-core-condition-encounter-diagnosis	FHIR
39	Condition Stage	StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/us-core-condition-encounter-diagnosis	FHIR
40	Condition Stage Type	StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/us-core-condition-encounter-diagnosis	FHIR
41	Condition/Diagnosis Severity	StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/us-core-condition-encounter-diagnosis	FHIR
42	Condition/Problem/Diagnosis Codes	StructureDefinition/us-core-procedure	FHIR
43	ConditionVerificationStatus	StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/us-core-condition-encounter-diagnosis	FHIR
44	Contact entity type	StructureDefinition/us-core-organization	FHIR
45	ContactPointSystem	StructureDefinition/us-core-practitioner StructureDefinition/us-core-patient StructureDefinition/us-core-practitionerrole StructureDefinition/us-core-organization	FHIR
46	ContactPointUse	StructureDefinition/us-core-practitioner StructureDefinition/us-core-patient StructureDefinition/us-core-practitionerrole StructureDefinition/us-core-organization	FHIR
47	Coverage Class Codes	StructureDefinition/us-core-coverage	FHIR
48	Coverage Copay Type Codes	StructureDefinition/us-core-coverage	FHIR
49	DataAbsentReason	StructureDefinition/pediatric-bmi-for-age StructureDefinition/us-core-pulse-oximetry StructureDefinition/us-core-observation-pregnancyintent StructureDefinition/us-core-bmi StructureDefinition/us-core-observation-lab StructureDefinition/head-occipital-frontal-circumference-percentile StructureDefinition/us-core-vital-signs StructureDefinition/us-core-simple-observation StructureDefinition/us-core-heart-rate StructureDefinition/us-core-head-circumference StructureDefinition/us-core-smokingstatus StructureDefinition/us-core-body-height StructureDefinition/us-core-care-experience-preference StructureDefinition/us-core-observation-clinical-result StructureDefinition/us-core-respiratory-rate StructureDefinition/us-core-body-temperature StructureDefinition/us-core-observation-screening-assessment StructureDefinition/pediatric-weight-for-height StructureDefinition/us-core-body-weight StructureDefinition/us-core-observation-pregnancystatus StructureDefinition/us-core-observation-occupation StructureDefinition/us-core-average-blood-pressure StructureDefinition/us-core-treatment-intervention-preference StructureDefinition/us-core-observation-adi-documentation StructureDefinition/us-core-observation-sexual-orientation StructureDefinition/us-core-blood-pressure	FHIR
50	DaysOfWeek	StructureDefinition/us-core-practitionerrole StructureDefinition/us-core-location	FHIR
51	Detailed Ethnicity	ValueSet/detailed-ethnicity	VSAC
52	Detailed Race	StructureDefinition/us-core-race	US CORE
53	Detailed ethnicity	StructureDefinition/us-core-ethnicity	US CORE
54	DeviceNameType	StructureDefinition/us-core-implantable-device	FHIR
55	DiagnosisRole	StructureDefinition/us-core-encounter	FHIR
56	Diagnostic Service Section Codes	StructureDefinition/us-core-diagnosticreport-note StructureDefinition/us-core-diagnosticreport-lab	FHIR
57	DiagnosticReportStatus	StructureDefinition/us-core-diagnosticreport-note StructureDefinition/us-core-diagnosticreport-lab	FHIR
58	Diet	StructureDefinition/us-core-encounter	FHIR
59	Document Class Value Set	StructureDefinition/us-core-adi-documentreference StructureDefinition/us-core-documentreference	FHIR
60	Document Type Value Set	OperationDefinition/docref	FHIR
61	DocumentReferenceStatus	StructureDefinition/us-core-adi-documentreference StructureDefinition/us-core-documentreference	FHIR
62	DocumentRelationshipType	StructureDefinition/us-core-adi-documentreference StructureDefinition/us-core-documentreference	FHIR
63	DoseAndRateType	StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-medicationdispense	FHIR
64	Encounter Reason Codes	StructureDefinition/us-core-encounter	FHIR
65	Encounter Type	StructureDefinition/us-core-encounter	VSAC
66	EncounterLocationStatus	StructureDefinition/us-core-encounter	FHIR
67	EncounterStatus	StructureDefinition/us-core-encounter	FHIR
68	Ethnicity	ValueSet/omb-ethnicity-category	VSAC
69	EventStatus	StructureDefinition/us-core-procedure	FHIR
70	Example Coverage Financial Exception Codes	StructureDefinition/us-core-coverage	FHIR
71	FHIR Device Types	StructureDefinition/us-core-implantable-device StructureDefinition/us-core-procedure	FHIR
72	FHIR Specimen Collection Method	StructureDefinition/us-core-specimen	FHIR
73	FHIRDeviceStatus	StructureDefinition/us-core-implantable-device	FHIR
74	FHIRDeviceStatusReason	StructureDefinition/us-core-implantable-device	FHIR
75	Facility Type Code Value Set	StructureDefinition/us-core-adi-documentreference StructureDefinition/us-core-documentreference	FHIR
76	Financial Resource Status Codes	StructureDefinition/us-core-coverage	FHIR
77	Gender Identity	StructureDefinition/us-core-genderIdentity	VSAC
78	Goal achievement status	StructureDefinition/us-core-goal	FHIR
79	Goal category	StructureDefinition/us-core-goal	FHIR
80	Goal priority	StructureDefinition/us-core-goal	FHIR
81	Goal start event	StructureDefinition/us-core-goal	FHIR
82	GoalLifecycleStatus	StructureDefinition/us-core-goal	FHIR
83	HL7 ValueSet of Format Codes for use with Document Sharing	StructureDefinition/us-core-adi-documentreference StructureDefinition/us-core-documentreference	THO
84	Healthcare Provider Taxonomy	StructureDefinition/us-core-practitionerrole	VSAC
85	HealthcareServiceLocation	ValueSet/us-core-location-type	THO
86	IdentifierType	StructureDefinition/us-core-practitioner StructureDefinition/us-core-patient StructureDefinition/us-core-encounter StructureDefinition/us-core-coverage StructureDefinition/us-core-organization	FHIR
87	IdentifierUse	StructureDefinition/us-core-practitioner StructureDefinition/us-core-patient StructureDefinition/us-core-encounter StructureDefinition/us-core-coverage StructureDefinition/us-core-organization	FHIR
88	Immunization Function Codes	StructureDefinition/us-core-immunization	FHIR
89	Immunization Funding Source	StructureDefinition/us-core-immunization	FHIR
90	Immunization Origin Codes	StructureDefinition/us-core-immunization	FHIR
91	Immunization Program Eligibility	StructureDefinition/us-core-immunization	FHIR
92	Immunization Reason Codes	StructureDefinition/us-core-immunization	FHIR
93	Immunization Route Codes	StructureDefinition/us-core-immunization	FHIR
94	Immunization Status Codes	StructureDefinition/us-core-immunization	FHIR
95	Immunization Status Reason Codes	StructureDefinition/us-core-immunization	FHIR
96	Immunization Subpotent Reason	StructureDefinition/us-core-immunization	FHIR
97	Immunization Target Disease Codes	StructureDefinition/us-core-immunization	FHIR
98	Industry NAICS Detail (ODH)	StructureDefinition/us-core-observation-occupation	PHINVADS
99	Information Source for Medication Adherence	StructureDefinition/us-core-medication-adherence	VSAC
100	LOINC Codes	StructureDefinition/us-core-care-experience-preference StructureDefinition/us-core-goal StructureDefinition/us-core-observation-pregnancyintent StructureDefinition/us-core-observation-clinical-result StructureDefinition/us-core-observation-lab StructureDefinition/us-core-observation-screening-assessment StructureDefinition/us-core-simple-observation StructureDefinition/us-core-observation-pregnancystatus StructureDefinition/us-core-observation-occupation StructureDefinition/us-core-average-blood-pressure StructureDefinition/us-core-treatment-intervention-preference StructureDefinition/us-core-observation-sexual-orientation StructureDefinition/us-core-smokingstatus StructureDefinition/us-core-observation-adi-documentation	FHIR
101	Language codes with language and optionally a region modifier	StructureDefinition/us-core-patient	US CORE
102	LinkType	StructureDefinition/us-core-patient	FHIR
103	Location type	StructureDefinition/us-core-encounter StructureDefinition/us-core-location	FHIR
104	LocationMode	StructureDefinition/us-core-location	FHIR
105	LocationStatus	StructureDefinition/us-core-location	FHIR
106	Manifestation and Symptom Codes	StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/us-core-condition-encounter-diagnosis	FHIR
107	MaritalStatus	StructureDefinition/us-core-patient	FHIR
108	Medication status codes	StructureDefinition/us-core-medication	FHIR
109	Medication Adherence	StructureDefinition/us-core-medication-adherence	VSAC
110	Medication Clinical Drug	StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-medication StructureDefinition/us-core-medicationdispense	VSAC
111	Medication dispense category codes	StructureDefinition/us-core-medicationdispense	FHIR
112	Medication dispense performer function codes	StructureDefinition/us-core-medicationdispense	FHIR
113	Medication dispense status codes	StructureDefinition/us-core-medicationdispense	FHIR
114	Medication dispense status reason codes	StructureDefinition/us-core-medicationdispense	FHIR
115	Medication request category codes	StructureDefinition/us-core-medicationrequest	FHIR
116	Medication request course of therapy codes	StructureDefinition/us-core-medicationrequest	FHIR
117	Medication request intent	StructureDefinition/us-core-medicationrequest	FHIR
118	Medication request status reason codes	StructureDefinition/us-core-medicationrequest	FHIR
119	Medicationrequest status	StructureDefinition/us-core-medicationrequest	FHIR
120	MimeType	StructureDefinition/us-core-adi-documentreference StructureDefinition/us-core-documentreference	FHIR
121	NameUse	StructureDefinition/us-core-practitioner StructureDefinition/us-core-patient	FHIR
122	OMB Ethnicity Categories	StructureDefinition/us-core-ethnicity	US CORE
123	OMB Race Categories	StructureDefinition/us-core-race	US CORE
124	Observation Category Codes	StructureDefinition/pediatric-bmi-for-age StructureDefinition/us-core-pulse-oximetry StructureDefinition/us-core-observation-pregnancyintent StructureDefinition/us-core-bmi StructureDefinition/us-core-observation-lab StructureDefinition/head-occipital-frontal-circumference-percentile StructureDefinition/us-core-vital-signs StructureDefinition/us-core-simple-observation StructureDefinition/us-core-heart-rate StructureDefinition/us-core-head-circumference StructureDefinition/us-core-smokingstatus StructureDefinition/us-core-body-height StructureDefinition/us-core-care-experience-preference StructureDefinition/us-core-observation-clinical-result StructureDefinition/us-core-respiratory-rate StructureDefinition/us-core-body-temperature StructureDefinition/us-core-observation-screening-assessment StructureDefinition/pediatric-weight-for-height StructureDefinition/us-core-body-weight StructureDefinition/us-core-observation-pregnancystatus StructureDefinition/us-core-observation-occupation StructureDefinition/us-core-average-blood-pressure StructureDefinition/us-core-treatment-intervention-preference StructureDefinition/us-core-observation-adi-documentation StructureDefinition/us-core-observation-sexual-orientation StructureDefinition/us-core-blood-pressure	FHIR
125	Observation Interpretation Codes	StructureDefinition/pediatric-bmi-for-age StructureDefinition/us-core-pulse-oximetry StructureDefinition/us-core-observation-pregnancyintent StructureDefinition/us-core-bmi StructureDefinition/us-core-observation-lab StructureDefinition/head-occipital-frontal-circumference-percentile StructureDefinition/us-core-vital-signs StructureDefinition/us-core-simple-observation StructureDefinition/us-core-heart-rate StructureDefinition/us-core-head-circumference StructureDefinition/us-core-smokingstatus StructureDefinition/us-core-body-height StructureDefinition/us-core-care-experience-preference StructureDefinition/us-core-observation-clinical-result StructureDefinition/us-core-respiratory-rate StructureDefinition/us-core-body-temperature StructureDefinition/us-core-observation-screening-assessment StructureDefinition/pediatric-weight-for-height StructureDefinition/us-core-body-weight StructureDefinition/us-core-observation-pregnancystatus StructureDefinition/us-core-observation-occupation StructureDefinition/us-core-average-blood-pressure StructureDefinition/us-core-treatment-intervention-preference StructureDefinition/us-core-observation-adi-documentation StructureDefinition/us-core-observation-sexual-orientation StructureDefinition/us-core-blood-pressure	FHIR
126	Observation Methods	StructureDefinition/pediatric-bmi-for-age StructureDefinition/us-core-pulse-oximetry StructureDefinition/us-core-observation-pregnancyintent StructureDefinition/us-core-bmi StructureDefinition/us-core-observation-lab StructureDefinition/head-occipital-frontal-circumference-percentile StructureDefinition/us-core-vital-signs StructureDefinition/us-core-simple-observation StructureDefinition/us-core-heart-rate StructureDefinition/us-core-head-circumference StructureDefinition/us-core-smokingstatus StructureDefinition/us-core-body-height StructureDefinition/us-core-care-experience-preference StructureDefinition/us-core-observation-clinical-result StructureDefinition/us-core-respiratory-rate StructureDefinition/us-core-body-temperature StructureDefinition/us-core-observation-screening-assessment StructureDefinition/pediatric-weight-for-height StructureDefinition/us-core-body-weight StructureDefinition/us-core-observation-pregnancystatus StructureDefinition/us-core-observation-occupation StructureDefinition/us-core-average-blood-pressure StructureDefinition/us-core-treatment-intervention-preference StructureDefinition/us-core-observation-adi-documentation StructureDefinition/us-core-observation-sexual-orientation StructureDefinition/us-core-blood-pressure	FHIR
127	Observation Reference Range Applies To Codes	StructureDefinition/pediatric-bmi-for-age StructureDefinition/us-core-pulse-oximetry StructureDefinition/us-core-observation-pregnancyintent StructureDefinition/us-core-bmi StructureDefinition/us-core-observation-lab StructureDefinition/head-occipital-frontal-circumference-percentile StructureDefinition/us-core-vital-signs StructureDefinition/us-core-simple-observation StructureDefinition/us-core-heart-rate StructureDefinition/us-core-head-circumference StructureDefinition/us-core-smokingstatus StructureDefinition/us-core-body-height StructureDefinition/us-core-care-experience-preference StructureDefinition/us-core-observation-clinical-result StructureDefinition/us-core-respiratory-rate StructureDefinition/us-core-body-temperature StructureDefinition/us-core-observation-screening-assessment StructureDefinition/pediatric-weight-for-height StructureDefinition/us-core-body-weight StructureDefinition/us-core-observation-pregnancystatus StructureDefinition/us-core-observation-occupation StructureDefinition/us-core-average-blood-pressure StructureDefinition/us-core-treatment-intervention-preference StructureDefinition/us-core-observation-adi-documentation StructureDefinition/us-core-observation-sexual-orientation StructureDefinition/us-core-blood-pressure	FHIR
128	Observation Reference Range Meaning Codes	StructureDefinition/pediatric-bmi-for-age StructureDefinition/us-core-pulse-oximetry StructureDefinition/us-core-observation-pregnancyintent StructureDefinition/us-core-bmi StructureDefinition/us-core-observation-lab StructureDefinition/head-occipital-frontal-circumference-percentile StructureDefinition/us-core-vital-signs StructureDefinition/us-core-simple-observation StructureDefinition/us-core-heart-rate StructureDefinition/us-core-head-circumference StructureDefinition/us-core-smokingstatus StructureDefinition/us-core-body-height StructureDefinition/us-core-care-experience-preference StructureDefinition/us-core-observation-clinical-result StructureDefinition/us-core-respiratory-rate StructureDefinition/us-core-body-temperature StructureDefinition/us-core-observation-screening-assessment StructureDefinition/pediatric-weight-for-height StructureDefinition/us-core-body-weight StructureDefinition/us-core-observation-pregnancystatus StructureDefinition/us-core-observation-occupation StructureDefinition/us-core-average-blood-pressure StructureDefinition/us-core-treatment-intervention-preference StructureDefinition/us-core-observation-adi-documentation StructureDefinition/us-core-observation-sexual-orientation StructureDefinition/us-core-blood-pressure	FHIR
129	ObservationStatus	StructureDefinition/pediatric-bmi-for-age StructureDefinition/us-core-pulse-oximetry StructureDefinition/us-core-observation-pregnancyintent StructureDefinition/us-core-bmi StructureDefinition/us-core-observation-lab StructureDefinition/head-occipital-frontal-circumference-percentile StructureDefinition/us-core-vital-signs StructureDefinition/us-core-simple-observation StructureDefinition/us-core-heart-rate StructureDefinition/us-core-head-circumference StructureDefinition/us-core-body-height StructureDefinition/us-core-care-experience-preference StructureDefinition/us-core-observation-clinical-result StructureDefinition/us-core-respiratory-rate StructureDefinition/us-core-body-temperature StructureDefinition/us-core-observation-screening-assessment StructureDefinition/pediatric-weight-for-height StructureDefinition/us-core-body-weight StructureDefinition/us-core-observation-pregnancystatus StructureDefinition/us-core-observation-occupation StructureDefinition/us-core-average-blood-pressure StructureDefinition/us-core-treatment-intervention-preference StructureDefinition/us-core-observation-adi-documentation StructureDefinition/us-core-observation-sexual-orientation StructureDefinition/us-core-blood-pressure	FHIR
130	Occupation ONETSOC Detail (ODH)	StructureDefinition/us-core-observation-occupation	PHINVADS
131	Organization type	StructureDefinition/us-core-organization	FHIR
132	Other or unknown or refused to answer	ValueSet/detailed-ethnicity ValueSet/detailed-race	VSAC
133	Participant Roles	StructureDefinition/us-core-servicerequest	FHIR
134	Participant type	StructureDefinition/us-core-encounter	FHIR
135	Patient Contact Relationship	StructureDefinition/us-core-patient	FHIR
136	Patient relationship type	StructureDefinition/us-core-relatedperson	FHIR
137	Payer Type	StructureDefinition/us-core-coverage	VSAC
138	Practice Setting Code Value Set	StructureDefinition/us-core-adi-documentreference StructureDefinition/us-core-documentreference	FHIR
139	Pregnancy Intention	StructureDefinition/us-core-observation-pregnancyintent	VSAC
140	Pregnancy Status Observation	StructureDefinition/us-core-observation-pregnancystatus	VSAC
141	Procedure Category Codes (SNOMED CT)	StructureDefinition/us-core-procedure	FHIR
142	Procedure Codes (SNOMED CT)	StructureDefinition/us-core-careplan	FHIR
143	Procedure Device Action Codes	StructureDefinition/us-core-procedure	FHIR
144	Procedure Follow up Codes (SNOMED CT)	StructureDefinition/us-core-procedure	FHIR
145	Procedure Not Performed Reason (SNOMED-CT)	StructureDefinition/us-core-procedure	FHIR
146	Procedure Outcome Codes (SNOMED CT)	StructureDefinition/us-core-procedure	FHIR
147	Procedure Performer Role Codes	StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-procedure	FHIR
148	Provenance activity type	StructureDefinition/us-core-provenance	FHIR
149	Provenance participant type	StructureDefinition/us-core-provenance	FHIR
150	ProvenanceEntityRole	StructureDefinition/us-core-provenance	FHIR
151	PurposeOfUse	StructureDefinition/us-core-provenance	THO
152	QuantityComparator	StructureDefinition/pediatric-bmi-for-age StructureDefinition/us-core-pulse-oximetry StructureDefinition/us-core-bmi StructureDefinition/head-occipital-frontal-circumference-percentile StructureDefinition/us-core-body-temperature StructureDefinition/us-core-respiratory-rate StructureDefinition/us-core-heart-rate StructureDefinition/us-core-head-circumference StructureDefinition/pediatric-weight-for-height StructureDefinition/us-core-body-weight StructureDefinition/us-core-average-blood-pressure StructureDefinition/us-core-body-height StructureDefinition/us-core-blood-pressure	FHIR
153	Questionnaire Answer Codes	StructureDefinition/us-core-questionnaireresponse	FHIR
154	QuestionnaireResponseStatus	StructureDefinition/us-core-questionnaireresponse	FHIR
155	Race	ValueSet/omb-race-category	VSAC
156	Race Value Set	ValueSet/detailed-race	VSAC
157	Request priority	StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-servicerequest	FHIR
158	RequestIntent	StructureDefinition/us-core-servicerequest	FHIR
159	RequestStatus	StructureDefinition/us-core-careplan StructureDefinition/us-core-servicerequest	FHIR
160	ResourceType	StructureDefinition/us-core-provenance	FHIR
161	Route of Administration of Therapeutic Agents	StructureDefinition/us-core-medicationdispense	VSAC
162	SNOMED CT Additional Dosage Instructions	StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-medicationdispense	FHIR
163	SNOMED CT Administration Method Codes	StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-medicationdispense	FHIR
164	SNOMED CT Anatomical Structure for Administration Site Codes	StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-medicationdispense	FHIR
165	SNOMED CT Body Structures	StructureDefinition/pediatric-bmi-for-age StructureDefinition/us-core-specimen StructureDefinition/us-core-pulse-oximetry StructureDefinition/us-core-observation-pregnancyintent StructureDefinition/us-core-procedure StructureDefinition/us-core-bmi StructureDefinition/us-core-observation-lab StructureDefinition/head-occipital-frontal-circumference-percentile StructureDefinition/us-core-vital-signs StructureDefinition/us-core-servicerequest StructureDefinition/us-core-simple-observation StructureDefinition/us-core-heart-rate StructureDefinition/us-core-head-circumference StructureDefinition/us-core-smokingstatus StructureDefinition/us-core-body-height StructureDefinition/us-core-care-experience-preference StructureDefinition/us-core-observation-clinical-result StructureDefinition/us-core-respiratory-rate StructureDefinition/us-core-body-temperature StructureDefinition/us-core-observation-screening-assessment StructureDefinition/us-core-condition-encounter-diagnosis StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/pediatric-weight-for-height StructureDefinition/us-core-body-weight StructureDefinition/us-core-observation-pregnancystatus StructureDefinition/us-core-observation-occupation StructureDefinition/us-core-average-blood-pressure StructureDefinition/us-core-treatment-intervention-preference StructureDefinition/us-core-observation-adi-documentation StructureDefinition/us-core-observation-sexual-orientation StructureDefinition/us-core-blood-pressure	FHIR
166	SNOMED CT Clinical Findings	StructureDefinition/us-core-diagnosticreport-note StructureDefinition/us-core-diagnosticreport-lab StructureDefinition/us-core-careteam StructureDefinition/us-core-goal StructureDefinition/us-core-careplan StructureDefinition/us-core-allergyintolerance	FHIR
167	SNOMED CT Form Codes	StructureDefinition/us-core-medication	FHIR
168	SNOMED CT Medication As Needed Reason Codes	StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-medicationdispense StructureDefinition/us-core-servicerequest	FHIR
169	SNOMED CT Medication Codes	StructureDefinition/us-core-careplan	FHIR
170	SNOMED CT Route Codes	StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-allergyintolerance	FHIR
171	Screening and Assesment Survey Codes	StructureDefinition/us-core-observation-screening-assessment	VSAC
172	SecurityLabels	StructureDefinition/us-core-adi-documentreference StructureDefinition/us-core-diagnosticreport-lab StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/us-core-documentreference StructureDefinition/us-core-encounter StructureDefinition/us-core-observation-lab	FHIR
173	SecurityRoleType	StructureDefinition/us-core-provenance	FHIR
174	Service Request Category Codes	ValueSet/us-core-servicerequest-category StructureDefinition/us-core-servicerequest	FHIR
175	Service Request Order Details Codes	StructureDefinition/us-core-servicerequest	FHIR
176	Service type	StructureDefinition/us-core-encounter	FHIR
177	ServiceDeliveryLocationRoleType	ValueSet/us-core-location-type StructureDefinition/us-core-servicerequest	THO
178	Sex	StructureDefinition/us-core-sex	VSAC
179	Sexual Orientation Including nulls and Data Absent Reason	StructureDefinition/us-core-observation-sexual-orientation	VSAC
180	Smoking Status Type	StructureDefinition/us-core-smokingstatus	VSAC
181	Smoking status comprehensive	StructureDefinition/us-core-smokingstatus	VSAC
182	Social Determinants of Health Goals	StructureDefinition/us-core-goal	VSAC
183	Special arrangements	StructureDefinition/us-core-encounter	FHIR
184	Special courtesy	StructureDefinition/us-core-encounter	FHIR
185	Specimen Condition SCT	ValueSet/us-core-specimen-condition	VSAC
186	Specimen Container Type	StructureDefinition/us-core-specimen	FHIR
187	Specimen processing procedure	StructureDefinition/us-core-specimen	FHIR
188	Specimen type	StructureDefinition/us-core-specimen	VSAC
189	SpecimenStatus	StructureDefinition/us-core-specimen	FHIR
190	SubscriberPolicyholder Relationship Codes	StructureDefinition/us-core-coverage	FHIR
191	Substance Code	StructureDefinition/us-core-allergyintolerance	FHIR
192	SubstanceAdminSubstitutionReason	StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-medicationdispense	THO
193	TribalEntityUS	StructureDefinition/us-core-tribal-affiliation	THO
194	UDIEntryType	StructureDefinition/us-core-implantable-device	FHIR
195	US Core Clinical Note Type		US CORE
196	US Core Clinical Result Observation Category	StructureDefinition/us-core-observation-clinical-result StructureDefinition/us-core-observation-lab	US CORE
197	US Core Condition Codes	StructureDefinition/us-core-medicationrequest StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/us-core-procedure StructureDefinition/us-core-servicerequest StructureDefinition/us-core-condition-encounter-diagnosis	US CORE
198	US Core Diagnostic Report Category Codes	StructureDefinition/us-core-diagnosticreport-note	US CORE
199	US Core DocumentReference Category	StructureDefinition/us-core-documentreference	US CORE
200	US Core DocumentReference Type	StructureDefinition/us-core-documentreference	US CORE
201	US Core Goal Codes	StructureDefinition/us-core-goal	US CORE
202	US Core Laboratory Test Codes	StructureDefinition/us-core-diagnosticreport-lab StructureDefinition/us-core-observation-lab	US CORE
203	US Core Location Type	StructureDefinition/us-core-location	US CORE
204	US Core Narrative Status	StructureDefinition/us-core-careplan	US CORE
205	US Core Non Laboratory Codes	StructureDefinition/us-core-diagnosticreport-note	US CORE
206	US Core Problem or Health Concern	StructureDefinition/us-core-condition-problems-health-concerns	US CORE
207	US Core Procedure Codes	StructureDefinition/us-core-procedure StructureDefinition/us-core-servicerequest	US CORE
208	US Core Provenance Participant Type Codes	StructureDefinition/us-core-provenance	US CORE
209	US Core Screening Assessment Condition Category		US CORE
210	US Core Screening Assessment Observation Category		US CORE
211	US Core Screening Assessment Observation Maximum Category	StructureDefinition/us-core-observation-screening-assessment	US CORE
212	US Core ServiceRequest Category Codes	StructureDefinition/us-core-servicerequest	US CORE
213	US Core Simple Observation Category	StructureDefinition/us-core-condition-problems-health-concerns StructureDefinition/us-core-simple-observation	US CORE
214	US Core Specimen Condition	StructureDefinition/us-core-specimen	US CORE
215	US Core Status for Smoking Status Observation	StructureDefinition/us-core-smokingstatus	US CORE
216	USEncounterDischargeDisposition	StructureDefinition/us-core-encounter	THO
217	USPS Two Letter Alphabetic Codes	StructureDefinition/us-core-practitioner StructureDefinition/us-core-patient StructureDefinition/us-core-location StructureDefinition/us-core-jurisdiction StructureDefinition/us-core-organization	US CORE
218	UnitsOfMeasureCaseSensitive	StructureDefinition/us-core-smokingstatus	THO
219	Unknown or refused to answer	ValueSet/omb-ethnicity-category ValueSet/omb-race-category	VSAC
220	Vital Sign Result Type	StructureDefinition/pediatric-bmi-for-age StructureDefinition/us-core-pulse-oximetry StructureDefinition/us-core-bmi StructureDefinition/head-occipital-frontal-circumference-percentile StructureDefinition/us-core-body-temperature StructureDefinition/us-core-respiratory-rate StructureDefinition/us-core-vital-signs StructureDefinition/us-core-heart-rate StructureDefinition/us-core-head-circumference StructureDefinition/pediatric-weight-for-height StructureDefinition/us-core-body-weight StructureDefinition/us-core-body-height StructureDefinition/us-core-blood-pressure	VSAC
221	Vital Signs Units	StructureDefinition/pediatric-bmi-for-age StructureDefinition/us-core-pulse-oximetry StructureDefinition/us-core-bmi StructureDefinition/head-occipital-frontal-circumference-percentile StructureDefinition/us-core-body-temperature StructureDefinition/us-core-respiratory-rate StructureDefinition/us-core-vital-signs StructureDefinition/us-core-heart-rate StructureDefinition/us-core-head-circumference StructureDefinition/pediatric-weight-for-height StructureDefinition/us-core-body-weight StructureDefinition/us-core-body-height StructureDefinition/us-core-blood-pressure	FHIR
222	hl7VS-additivePreservative	StructureDefinition/us-core-specimen	THO
223	hl7VS-bedStatus	StructureDefinition/us-core-location	THO
224	hl7VS-re-admissionIndicator	StructureDefinition/us-core-encounter	THO
225	hl7VS-relevantClincialInformation	StructureDefinition/us-core-specimen	THO
226	hl7VS-specimenCondition	ValueSet/us-core-specimen-condition	THO
227	v2 table 0360	FHIR Value set/code system definition for HL7 v2 table 0360 ver 2.9 ( Degree/License/Certificate)	THO
228	v3 Code System ActCode	StructureDefinition/us-core-adi-documentreference StructureDefinition/us-core-documentreference	THO

Code Systems

See the FHIR terminology section for a complete discussion on code systems and a list of code system names used in FHIR. Most code systems used in this guide are defined in the base FHIR specification. However, the following code systems are unique to this guide and not listed in the base FHIR specification. If a URI is listed here, it SHALL be used in the US Core profiles to identify the code system in preference to any other code system URI.

Code systems published in this IG*- Includes US Core defined code systems and externally defined code systems

• US Core CarePlan Category Extension Codes
• US Core Category
• US Core Condition Category Extension Codes
• US Core DocumentReferences Category Codes
• US Core Provenance Participant Type Extension Codes

Externally Published code systems

URI	Source	Comment	OID (for non-FHIR systems)
https://www.cms.gov/Medicare/Coding/HCPCSReleaseCodeSets	CMS	Healthcare Common Procedure Coding System (HCPCS) Level II alphanumeric codes	2.16.840.1.113883.6.285
http://www.cms.gov/Medicare/Coding/ICD10	CMS	International Classification of Diseases, 10th Revision, Procedure Coding System (ICD-10-PCS) - See ICD-10 PCS Codes for online access to codes for general information purposes.	2.16.840.1.113883.6.4
http://www.ada.org/cdt	ADA	Code on Dental Procedures and Nomenclature	2.16.840.1.113883.6.13
https://www.usps.com	USPS	United States Postal Service Two–Letter State and Possession Abbreviations	2.16.840.1.113883.6.92

Code System Used in US Core

The following table lists all the CodeSystems used in US Core and where they can be found. This information is also available as a csv or excel file.

Code System Sources:

• FHIR
• US CORE
• THO
• SNOMED
• LOINC
• UCUM
• CDC
• Code systems published by other standards organizations

Row #	Code System	Code System URI	Value Sets Where Used	Source
1		http://dicom.nema.org/resources/ontology/DCM	ValueSet/security-role-type	Other
2	ActCode	http://terminology.hl7.org/CodeSystem/v3-ActCode	ValueSet/v3-ActPharmacySupplyType ValueSet/v3-ActCode ValueSet/provenance-activity-type ValueSet/v3-ActEncounterCode	THO
3	ActPriority	http://terminology.hl7.org/CodeSystem/v3-ActPriority	ValueSet/v3-ActPriority	THO
4	ActReason	http://terminology.hl7.org/CodeSystem/v3-ActReason	ValueSet/immunization-status-reason ValueSet/v3-PurposeOfUse ValueSet/v3-SubstanceAdminSubstitutionReason	THO
5	ActSite	http://terminology.hl7.org/CodeSystem/v3-ActSite	ValueSet/immunization-site	THO
6	AddressType	http://hl7.org/fhir/address-type	ValueSet/address-type	FHIR
7	AddressUse	http://hl7.org/fhir/address-use	ValueSet/address-use	FHIR
8	AdministrativeGender	http://hl7.org/fhir/administrative-gender	ValueSet/administrative-gender	FHIR
9	Admit source	http://terminology.hl7.org/CodeSystem/admit-source	ValueSet/encounter-admit-source	THO
10	AllergyIntolerance Clinical Status Codes	http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical	ValueSet/allergyintolerance-clinical	THO
11	AllergyIntolerance Verification Status	http://terminology.hl7.org/CodeSystem/allergyintolerance-verification	ValueSet/allergyintolerance-verification	THO
12	AllergyIntoleranceCategory	http://hl7.org/fhir/allergy-intolerance-category	ValueSet/allergy-intolerance-category	FHIR
13	AllergyIntoleranceCriticality	http://hl7.org/fhir/allergy-intolerance-criticality	ValueSet/allergy-intolerance-criticality	FHIR
14	AllergyIntoleranceSeverity	http://hl7.org/fhir/reaction-event-severity	ValueSet/reaction-event-severity	FHIR
15	AllergyIntoleranceType	http://hl7.org/fhir/allergy-intolerance-type	ValueSet/allergy-intolerance-type	FHIR
16	CarePlanActivityStatus	http://hl7.org/fhir/care-plan-activity-status	ValueSet/care-plan-activity-status	FHIR
17	CareTeamStatus	http://hl7.org/fhir/care-team-status	ValueSet/care-team-status	FHIR
18	Code on Dental Procedures and Nomenclature	http://www.ada.org/cdt	ValueSet/us-core-procedure-code	Other
19	Common Tags	http://terminology.hl7.org/CodeSystem/common-tags	ValueSet/common-tags	THO
20	CompositionStatus	http://hl7.org/fhir/composition-status	ValueSet/composition-status	FHIR
21	Condition Category Codes	http://terminology.hl7.org/CodeSystem/condition-category	ValueSet/condition-category ValueSet/us-core-problem-or-health-concern	THO
22	Condition Clinical Status Codes	http://terminology.hl7.org/CodeSystem/condition-clinical	ValueSet/condition-clinical	THO
23	ConditionVerificationStatus	http://terminology.hl7.org/CodeSystem/condition-ver-status	ValueSet/condition-ver-status	THO
24	Contact entity type	http://terminology.hl7.org/CodeSystem/contactentity-type	ValueSet/contactentity-type	THO
25	ContactPointSystem	http://hl7.org/fhir/contact-point-system	ValueSet/contact-point-system	FHIR
26	ContactPointUse	http://hl7.org/fhir/contact-point-use	ValueSet/contact-point-use	FHIR
27	Contract Signer Type Codes	http://terminology.hl7.org/CodeSystem/contractsignertypecodes	ValueSet/security-role-type	THO
28	Coverage Class Codes	http://terminology.hl7.org/CodeSystem/coverage-class	ValueSet/coverage-class	THO
29	Coverage Copay Type Codes	http://terminology.hl7.org/CodeSystem/coverage-copay-type	ValueSet/coverage-copay-type	THO
30	Current Procedural Terminology (CPT®)	http://www.ama-assn.org/go/cpt	ValueSet/us-core-procedure-code	Other
31	DataAbsentReason	http://terminology.hl7.org/CodeSystem/data-absent-reason	ValueSet/data-absent-reason	THO
32	DataOperation	http://terminology.hl7.org/CodeSystem/v3-DataOperation	ValueSet/provenance-activity-type	THO
33	DaysOfWeek	http://hl7.org/fhir/days-of-week	ValueSet/days-of-week	FHIR
34	DeviceNameType	http://hl7.org/fhir/device-nametype	ValueSet/device-nametype	FHIR
35	Diagnosis Role	http://terminology.hl7.org/CodeSystem/diagnosis-role	ValueSet/diagnosis-role	THO
36	DiagnosticReportStatus	http://hl7.org/fhir/diagnostic-report-status	ValueSet/diagnostic-report-status	FHIR
37	Diet	http://terminology.hl7.org/CodeSystem/diet	ValueSet/encounter-diet	THO
38	DocumentCompletion	http://terminology.hl7.org/CodeSystem/v3-DocumentCompletion	ValueSet/provenance-activity-type	THO
39	DocumentReferenceStatus	http://hl7.org/fhir/document-reference-status	ValueSet/document-reference-status	FHIR
40	DocumentRelationshipType	http://hl7.org/fhir/document-relationship-type	ValueSet/document-relationship-type	FHIR
41	DoseAndRateType	http://terminology.hl7.org/CodeSystem/dose-rate-type	ValueSet/dose-rate-type	THO
42	EncounterLocationStatus	http://hl7.org/fhir/encounter-location-status	ValueSet/encounter-location-status	FHIR
43	EncounterSpecialCourtesy	http://terminology.hl7.org/CodeSystem/v3-EncounterSpecialCourtesy	ValueSet/encounter-special-courtesy	THO
44	EncounterStatus	http://hl7.org/fhir/encounter-status	ValueSet/encounter-status	FHIR
45	EventStatus	http://hl7.org/fhir/event-status	ValueSet/immunization-status ValueSet/event-status	FHIR
46	Example Coverage Financial Exception Codes	http://terminology.hl7.org/CodeSystem/ex-coverage-financial-exception	ValueSet/coverage-financial-exception	THO
47	FHIRDeviceStatus	http://hl7.org/fhir/device-status	ValueSet/device-status	FHIR
48	FHIRDeviceStatusReason	http://terminology.hl7.org/CodeSystem/device-status-reason	ValueSet/device-status-reason	THO
49	Financial Resource Status Codes	http://hl7.org/fhir/fm-status	ValueSet/fm-status	FHIR
50	Goal achievement status	http://terminology.hl7.org/CodeSystem/goal-achievement	ValueSet/goal-achievement	THO
51	Goal category	http://terminology.hl7.org/CodeSystem/goal-category	ValueSet/goal-category	THO
52	Goal priority	http://terminology.hl7.org/CodeSystem/goal-priority	ValueSet/goal-priority	THO
53	GoalLifecycleStatus	http://hl7.org/fhir/goal-status	ValueSet/goal-status	FHIR
54	HL7 Document Format Codes	http://terminology.hl7.org/CodeSystem/v3-HL7DocumentFormatCodes	ValueSet/v3-HL7FormatCodes	THO
55	ICD-10 Procedure Codes	http://www.cms.gov/Medicare/Coding/ICD10	ValueSet/us-core-procedure-code	Other
56	ICD-9CM	http://terminology.hl7.org/CodeSystem/icd9cm	ValueSet/us-core-condition-code	THO
57	IdentifierUse	http://hl7.org/fhir/identifier-use	ValueSet/identifier-use	FHIR
58	Immunization Funding Source	http://terminology.hl7.org/CodeSystem/immunization-funding-source	ValueSet/immunization-funding-source	THO
59	Immunization Origin Codes	http://terminology.hl7.org/CodeSystem/immunization-origin	ValueSet/immunization-origin	THO
60	Immunization Program Eligibility	http://terminology.hl7.org/CodeSystem/immunization-program-eligibility	ValueSet/immunization-program-eligibility	THO
61	Immunization Subpotent Reason	http://terminology.hl7.org/CodeSystem/immunization-subpotent-reason	ValueSet/immunization-subpotent-reason	THO
62	International Classification of Diseases	http://hl7.org/fhir/sid/icd-10-cm	Clinical Modification (ICD-10-CM)	CDC
63	LinkType	http://hl7.org/fhir/link-type	ValueSet/link-type	FHIR
64	Location type	http://terminology.hl7.org/CodeSystem/location-physical-type	ValueSet/location-physical-type	THO
65	LocationMode	http://hl7.org/fhir/location-mode	ValueSet/location-mode	FHIR
66	LocationStatus	http://hl7.org/fhir/location-status	ValueSet/location-status	FHIR
67	Logical Observation Identifiers	http://loinc.org	LOINC provides a set of universal names and ID codes for identifying laboratory and clinical test results.1 2 LOINC facilitates the exchange and pooling of results such as blood hemoglobin serum potassium or vital signs for clinical care outcomes management and research. LOINC's universal identifiers (names and codes) can be used in the context of order and observation exchanges between information systems that use syntax standards such as HL73 CEN TC251 ISO TC215 ASTM4 and DICOM. Specifically the identifier can be used as the coded value for an observation in any other standard that uses the observation/observation value paradigm whether messages documents application programming interface (API) etc. For example LOINC codes are used widely in the OBX segment Observation Identifier field (OBX-3) of an ORU HL7 (HL7 version 2.x or ASTM 1238-9410) message that may be sent between a Clinical Laboratory Information Management Systems (LIMS) and Electronic Health Record Systems (EHR).5 6 In this way LOINC codes provide universal identifiers that allow the exchange of clinical data between heterogeneous computing environments.	LOINC
68	MaritalStatus	http://terminology.hl7.org/CodeSystem/v3-MaritalStatus	ValueSet/marital-status	THO
69	Medication status codes	http://hl7.org/fhir/CodeSystem/medication-status	ValueSet/medication-status	FHIR
70	Medication dispense category codes	http://terminology.hl7.org/fhir/CodeSystem/medicationdispense-category	ValueSet/medicationdispense-category	THO
71	Medication dispense status codes	http://terminology.hl7.org/CodeSystem/medicationdispense-status	ValueSet/medicationdispense-status	THO
72	Medication dispense status reason codes	http://terminology.hl7.org/fhir/CodeSystem/medicationdispense-status-reason	ValueSet/medicationdispense-status-reason	THO
73	Medication request intent	http://hl7.org/fhir/CodeSystem/medicationrequest-intent	ValueSet/medicationrequest-intent	FHIR
74	MedicationDispense Performer Function Codes	http://terminology.hl7.org/CodeSystem/medicationdispense-performer-function	ValueSet/medicationdispense-performer-function	THO
75	MedicationRequest Category Codes	http://terminology.hl7.org/CodeSystem/medicationrequest-category	ValueSet/medicationrequest-category	THO
76	MedicationRequest Course of Therapy Codes	http://terminology.hl7.org/CodeSystem/medicationrequest-course-of-therapy	ValueSet/medicationrequest-course-of-therapy	THO
77	MedicationRequest Status Reason Codes	http://terminology.hl7.org/CodeSystem/medicationrequest-status-reason	ValueSet/medicationrequest-status-reason	THO
78	Medicationrequest status	http://hl7.org/fhir/CodeSystem/medicationrequest-status	ValueSet/medicationrequest-status	FHIR
79	NameUse	http://hl7.org/fhir/name-use	ValueSet/name-use	FHIR
80	NarrativeStatus	http://hl7.org/fhir/narrative-status	ValueSet/us-core-narrative-status	FHIR
81	National Uniform Billing Council	http://terminology.hl7.org/CodeSystem/nubc-UB92	National Uniform Billing Council UB 92	THO
82	NullFlavor	http://terminology.hl7.org/CodeSystem/v3-NullFlavor	ValueSet/us-core-documentreference-type ValueSet/marital-status ValueSet/encounter-special-courtesy	THO
83	Observation Category Codes	http://terminology.hl7.org/CodeSystem/observation-category	ValueSet/us-core-screening-assessment-observation-category ValueSet/us-core-simple-observation-category ValueSet/us-core-clinical-result-observation-category ValueSet/observation-category ValueSet/us-core-screening-assessment-observation-maximum-category	THO
84	Observation Reference Range Meaning Codes	http://terminology.hl7.org/CodeSystem/referencerange-meaning	ValueSet/referencerange-meaning	THO
85	ObservationInterpretation	http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation	ValueSet/observation-interpretation	THO
86	ObservationStatus	http://hl7.org/fhir/observation-status	ValueSet/us-core-observation-smoking-status-status ValueSet/observation-status	FHIR
87	Occupational Data for Health (ODH)	http://terminology.hl7.org/CodeSystem/PHOccupationalDataForHealthODH	ValueSet/2.16.840.1.114222.4.11.7900 ValueSet/2.16.840.1.114222.4.11.7901	THO
88	Organization type	http://terminology.hl7.org/CodeSystem/organization-type	ValueSet/organization-type	THO
89	Participant type	http://terminology.hl7.org/CodeSystem/participant-type	ValueSet/encounter-participant-type	THO
90	ParticipationFunction	http://terminology.hl7.org/CodeSystem/v3-ParticipationFunction	ValueSet/security-role-type	THO
91	ParticipationType	http://terminology.hl7.org/CodeSystem/v3-ParticipationType	ValueSet/security-role-type ValueSet/encounter-participant-type ValueSet/provenance-activity-type	THO
92	Provenance participant type	http://terminology.hl7.org/CodeSystem/provenance-participant-type	ValueSet/provenance-agent-type	THO
93	ProvenanceEntityRole	http://hl7.org/fhir/provenance-entity-role	ValueSet/provenance-entity-role	FHIR
94	QuantityComparator	http://hl7.org/fhir/quantity-comparator	ValueSet/quantity-comparator	FHIR
95	QuestionnaireResponseStatus	http://hl7.org/fhir/questionnaire-answers-status	ValueSet/questionnaire-answers-status	FHIR
96	RequestIntent	http://hl7.org/fhir/request-intent	ValueSet/request-intent ValueSet/care-plan-intent	FHIR
97	RequestPriority	http://hl7.org/fhir/request-priority	ValueSet/request-priority	FHIR
98	RequestStatus	http://hl7.org/fhir/request-status	ValueSet/request-status	FHIR
99	ResourceType	http://hl7.org/fhir/resource-types	ValueSet/resource-types ValueSet/care-plan-activity-kind	FHIR
100	RoleClass	http://terminology.hl7.org/CodeSystem/v3-RoleClass	ValueSet/security-role-type	THO
101	RoleCode	http://terminology.hl7.org/CodeSystem/v3-RoleCode	ValueSet/security-role-type ValueSet/relatedperson-relationshiptype ValueSet/v3-ServiceDeliveryLocationRoleType	THO
102	RouteOfAdministration	http://terminology.hl7.org/CodeSystem/v3-RouteOfAdministration	ValueSet/immunization-route	THO
103	SNOMED CT (all versions)	http://snomed.info/sct	ValueSet/servicerequest-category ValueSet/condition-stage ValueSet/clinical-findings ValueSet/immunization-target-disease ValueSet/encounter-reason ValueSet/specimen-container-type ValueSet/additional-instruction-codes ValueSet/participant-role ValueSet/2.16.840.1.113762.1.4.1099.54 ValueSet/approach-site-codes ValueSet/procedure-followup ValueSet/us-core-goal-description ValueSet/device-action ValueSet/specimen-collection-method ValueSet/medication-form-codes ValueSet/us-core-condition-code ValueSet/medication-codes ValueSet/body-site ValueSet/manifestation-or-symptom ValueSet/goal-start-event ValueSet/procedure-code ValueSet/medication-as-needed-reason ValueSet/2.16.840.1.113762.1.4.1166.22 ValueSet/device-kind ValueSet/performer-role ValueSet/c80-facilitycodes ValueSet/immunization-reason ValueSet/2.16.840.1.113762.1.4.1267.3 ValueSet/c80-practice-codes ValueSet/referencerange-appliesto ValueSet/us-core-servicerequest-category ValueSet/route-codes ValueSet/substance-code ValueSet/procedure-outcome ValueSet/care-plan-activity-outcome ValueSet/procedure-category ValueSet/condition-code ValueSet/condition-stage-type ValueSet/immunization-status-reason ValueSet/procedure-not-performed-reason ValueSet/care-plan-category ValueSet/us-core-procedure-code ValueSet/observation-methods ValueSet/questionnaire-answers ValueSet/servicerequest-orderdetail ValueSet/administration-method-codes ValueSet/condition-severity	SNOMED
104	Security Role Type	http://terminology.hl7.org/CodeSystem/extra-security-role-type	ValueSet/security-role-type	THO
105	Service type	http://terminology.hl7.org/CodeSystem/service-type	ValueSet/service-type	THO
106	Source of Payment Typology	https://nahdo.org/sopt	ValueSet/2.16.840.1.114222.4.11.3591	Other
107	Special arrangements	http://terminology.hl7.org/CodeSystem/encounter-special-arrangements	ValueSet/encounter-special-arrangements	THO
108	SpecimenStatus	http://hl7.org/fhir/specimen-status	ValueSet/specimen-status	FHIR
109	SubscriberPolicyholder Relationship Codes	http://terminology.hl7.org/CodeSystem/subscriber-relationship	ValueSet/subscriber-relationship	THO
110	Substance Admin Substitution	http://terminology.hl7.org/CodeSystem/v3-substanceAdminSubstitution	ValueSet/v3-ActSubstanceAdminSubstitutionCode	THO
111	Tags for the Identification of Languages	urn:ietf:bcp:47	ValueSet/languages ValueSet/simple-language	Other
112	TribalEntityUS	http://terminology.hl7.org/CodeSystem/v3-TribalEntityUS	ValueSet/v3-TribalEntityUS	THO
113	UDIEntryType	http://hl7.org/fhir/udi-entry-type	ValueSet/udi-entry-type	FHIR
114	US Core Category	http://hl7.org/fhir/us/core/CodeSystem/us-core-category	ValueSet/us-core-screening-assessment-observation-category ValueSet/us-core-simple-observation-category ValueSet/us-core-servicerequest-category ValueSet/us-core-screening-assessment-condition-category ValueSet/us-core-screening-assessment-observation-maximum-category	US CORE
115	US Core Condition Category Extension Codes	http://hl7.org/fhir/us/core/CodeSystem/condition-category	ValueSet/us-core-problem-or-health-concern	US CORE
116	US Core DocumentReferences Category Codes	http://hl7.org/fhir/us/core/CodeSystem/us-core-documentreference-category	ValueSet/us-core-documentreference-category	US CORE
117	US Core Provenance Participant Type Extension Codes	http://hl7.org/fhir/us/core/CodeSystem/us-core-provenance-participant-type	ValueSet/us-core-provenance-participant-type	US CORE
118	Unified Code for Units of Measure (UCUM)	http://unitsofmeasure.org	ValueSet/ucum-bodyweight ValueSet/ucum-bodytemp ValueSet/ucum-common ValueSet/ucum-vitals-common ValueSet/v3-UnitsOfMeasureCaseSensitive ValueSet/ucum-bodylength	UCUM
119	Vaccine Administered Code Set (CVX)	http://hl7.org/fhir/sid/cvx	ValueSet/2.16.840.1.113762.1.4.1010.6	CDC
120	additivePreservative	http://terminology.hl7.org/CodeSystem/v2-0371	ValueSet/v2-0371	THO
121	bedStatus	http://terminology.hl7.org/CodeSystem/v2-0116	ValueSet/v2-0116	THO
122	contactRole2	http://terminology.hl7.org/CodeSystem/v2-0131	ValueSet/relatedperson-relationshiptype ValueSet/patient-contactrelationship	THO
123	diagnosticServiceSectionId	http://terminology.hl7.org/CodeSystem/v2-0074	ValueSet/diagnostic-service-sections	THO
124	identifierType	http://terminology.hl7.org/CodeSystem/v2-0203	ValueSet/identifier-type	THO
125	providerRole	http://terminology.hl7.org/CodeSystem/v2-0443	ValueSet/immunization-function	THO
126	re-admissionIndicator	http://terminology.hl7.org/CodeSystem/v2-0092	ValueSet/v2-0092	THO
127	relevantClincialInformation	http://terminology.hl7.org/CodeSystem/v2-0916	ValueSet/v2-0916	THO
128	treatment	http://terminology.hl7.org/CodeSystem/v2-0373	ValueSet/specimen-processing-procedure	THO

The Value Set Authority Center (VSAC)

This guide links terminology directly to the FHIR® Terminology Service for VSAC Resources (Value Set Authority Center (VSAC)), where applicable, using a RESTful API service to access the VSAC value sets and supported code systems. See the table above for a list of value sets used in US Core that VSAC defines.

How to Acess Value Sets in VSAC

• VSAC requires login using your own UMLS API Key to view the value sets. VSAC UMLS Licensing information. (See the screenshots below)
• The value sets in VSAC are specified using a VSAC value set OID.

• To view the value set expansion in the VSAC user interface, use:

  GET https://vsac.nlm.nih.gov/ValueSet/[VSAC OID]/expansion

  An example of this is shown in the screenshots below.

• To fetch the FHIR ValueSet resource (in other words, the value set definition), use:

  GET https://cts.nlm.nih.gov/fhir/ValueSet/[VSAC OID]

• To fetch the FHIR ValueSet resource expansion, use the FHIR $expand operation:

  GET https://cts.nlm.nih.gov/fhir/ValueSet/[VSAC OID]/$expand

For more information, refer to the FHIR Terminology Service for VSAC Resources

For example, the US Core Smoking Status Observation Profile valueCodeableConcept element has a preferred binding to the Smoking Status value set. To access it in VSAC, click on the link to https://vsac.nlm.nih.gov/valueset/2.16.840.1.113883.11.20.9.38/expansion:

The reader is redirected to the VSAC login page to enter an API Key (only one login is required per session):

After successfully entering the API Key, the value set can be inspected, downloaded, etc., using the VSAC User interface, as shown in the figure below. This FHIR ValueSet resource can also be fetched using the URL https://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.11.20.9.38, and the FHIR ValueSet expansion using the URL https://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.11.20.9.38/$expand.