US Core Implementation Guide
6.0.0 - STU6
US Core Implementation Guide
6.0.0 - STU6
This page is part of the US Core (v6.0.0: STU6) based on FHIR R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions 
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.
These value sets have been defined for this implementation guide.
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.
| 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 |
The value set used in the US Core Profiles includes codes from following Code Systems URIs:
http://hl7.org/fhir/sid/cvxhttp://hl7.org/fhir/sid/icd-10-cmhttp://hl7.org/fhir/sid/icd-9-cmurn:ietf:bcp:13urn:ietf:bcp:47urn:oid:2.16.840.1.113883.6.238This guide links terminology directly to the FHIR® Terminology Service for VSAC Resources (Value Set Authority Center (VSAC) where applicable using a RESTful API service for accessing the VSAC value sets and supported code systems.
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.
IG © 2023+ HL7 International - Cross-Group Projects. Package hl7.fhir.us.core#6.0.0 based on FHIR 4.0.1. Generated 2023-05-03
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