SNOMED CT Managed Service - US Edition package license

Release notes wording:

This document forms part of the September 2025 SNOMED CT® US Edition release distributed by the US National Library of Medicine, and is subject to the SNOMED CT® Affiliate License, details of which may be found at https://www.nlm.nih.gov/healthit/snomedct/snomed_licensing.html.

This material includes SNOMED Clinical Terms® (SNOMED CT®) which is used by permission of the International Health Terminology Standards Development Organisation (IHTSDO). All rights reserved. SNOMED CT®, was originally created by The College of American Pathologists. "SNOMED" and "SNOMED CT" are registered trademarks of International Health Terminology Standards Development Organisation, trading as SNOMED International.

Readme file wording:

SNOMED CT US Edition(R): September 2025 Release

Introduction
SNOMED CT US Edition is a combination of the July 2025 SNOMED CT International Release and the US Extension to SNOMED CT.

File description
The SNOMED CT US Edition is provided in UTF-8 encoded tab-delimited flat files which can be imported into any database or other software application. SNOMED CT is not software.

The SNOMED CT files are designed as relational tables with each line in the file representing a row in the table. The first row of each table contains column headings. All other rows contain data.

More information on the US Edition of SNOMED CT is available at http://www.nlm.nih.gov/research/umls/Snomed/us_edition.html

Please see the following link for full Release Notes: https://conf.spaces.snomed.org/wiki/spaces/RMT/pages/131992659/SNOMED+CT+Managed+Service+-+US+Edition+Release+Notes+-+September+2025

License requirement

The US Edition of SNOMED CT is developed and maintained by the U.S. National Library of Medicine and is available to authorized UMLS Metathesaurus Licensees from the UTS Downloads site at https://uts.nlm.nih.gov.

This material includes SNOMED Clinical Terms® (SNOMED CT®) which is used by permission of the International Health Terminology Standards Development Organisation (IHTSDO). All rights reserved. SNOMED CT® was originally created by the College of American Pathologists. "SNOMED" and "SNOMED CT" are registered trademarks of International Health Terminology Standards Development Organisation, trading as SNOMED International.

SNOMED CT has been created by combining SNOMED RT and a computer based nomenclature and classification known as Clinical Terms Version 3, formerly known as Read Codes Version 3, which was created on behalf of the UK Department of Health and is Crown copyright.

You must have a UMLS license and UTS account to access SNOMED CT International and US Edition files. License information is available from the UTS at UMLS Metathesaurus Browser

Feedback and suggestions

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U.S. National Library of Medicine
September 1, 2025