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VSAC Support Center

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Updated COVID-19 Provisional Codes in VSAC

The National Library of Medicine (NLM) Value Set Authority Center (VSAC) has updated VSAC with the most recent provisional terminology codes published by HCPCS, LOINC and SNOMED CT, in response to the COVID-19 pandemic.

These prerelease special-use provisional codes were developed by the following standard terminologies in response to the COVID-19 pandemic and they are based on the most up to date information available at the time of their creation.

The “VSAC Code System Version” designation is a VSAC-created element based on the VSAC acquisition date of the provisional codes. Each provisional code system version contains all provisional codes, cumulatively, until the terminology incorporates their provisional codes into a formal release.

Be aware that downstream users may not be ready to handle prerelease codes until they are published in an official terminology release.


See our VSAC Support Center page on how to include provisional codes in your VSAC value sets.

Questions? Contact Us

Last Reviewed: July 9, 2020