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SNOMED CT is one of a suite of designated standards for use in U.S. Federal Government systems for the electronic exchange of clinical health information and is also a required standard in interoperability specifications of the U.S. Healthcare Information Technology Standards Panel. The clinical terminology is owned and maintained by SNOMED International, a not-for-profit association.

As the United States National Release Center for SNOMED CT, NLM provides SNOMED CT data and resources to licensees of the NLM UMLS Metathesaurus. Click on an area below to learn more about SNOMED CT and other terminology resources.

Browse and Download SNOMED CT

Explore the SNOMED CT Browser and learn more about the different SNOMED CT Release Files. NLM distributes SNOMED CT-related files to licensed individuals via UMLS Terminology Services.

Get a License

Licensees of the NLM UMLS Metathesaurus have access to SNOMED CT. Learn more about licensing and how to register to obtain an Affiliate License.

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Learn about SNOMED CT

SNOMED CT is designated as a standard for electronic exchange of clinical health information. Learn more about why SNOMED CT is important.

Request Content in SNOMED CT

Learn about the US SNOMED CT Content Request System (USCRS) and other CRS resources.

A free IHTSDO Confluence account is required to access USCRS.

Last Reviewed: September 18, 2019