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VSAC Support Center

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C-CDA R2.1 Updated Value Sets Available

The National Library of Medicine is pleased to announce the Value Set Authority Center (VSAC) publication and downloadable files for the 2022-08-10 release of the HL7 Consolidated Clinical Document Architecture (C-CDA) R2.1 value sets, authored by the HL7 Terminology group. This release contains 144 C-CDA value sets.

Value Set Name Value Set OID
Mental Status Observations 2.16.840.1.113762.1.4.1240.1

There are several ways you can access the C-CDA value sets:

  • VSAC Welcome Page: The Search button in the HL7 C-CDA Value Sets program block leads you to the VSAC Search Value Sets web browser, prefiltered by this HL7 C-CDA release. The Download link in the HL7 C-CDA Value Sets program block leads you to the C-CDA Value Sets section of the VSAC Download tab and supplies prepackaged downloadable files.
  • VSAC Download Tab: Here, you can download the Excel, pipe-delimited text files, and XML files of the C-CDA value sets; Code System Versions Currently in C-CDA R2.1 Value Sets;A list of C-CDA R2.1 Value Sets Available in VSAC;A list of C-CDA R2.1 Value Sets Unavailable in VSAC. The published downloadable C-CDA R2.1 2022-08-10 release excludes 24 C-CDA value sets for which VSAC does not have the required supporting code systems.
  • VSAC Search Value Sets Tab: In the VSAC web browser, you can search, sort, filter and view details for all or individual C-CDA value sets; use the Export Search Results button to download a catalog of C-CDA value set expansions; To download all 2022 C-CDA value set expansions as Excel, XML, or Text files, increase the paging to 120 rows and use the checkboxes to select value sets. Repeat as necessary.
  • VSAC SVS API: Given a C-CDA value set identifier (OID) that you can obtain by any of the above methods, use an SVS API call, such as: [https://vsac.nlm.nih.gov/vsac/svs/RetrieveMultipleValueSets?id=2.16.840.1.113883.1.11.16866&release=C-CDA R2.1 2022-08-10&ticket=your-service-ticket]
  • VSAC FHIR API: [https://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.11.20.9.46/$expand?expansion=C-CDA R2.1 2022-08-10]

For additional information on API authentication and usage, see our API documentation.

Please send any questions or feedback regarding VSAC functionality to: NLM Customer Support.

Last Reviewed: August 10, 2022