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These guidelines should be applied to new content. While there are many terms in the existing content that are not in compliance with this guidance, the process of correcting existing content will be carried out as time and resources permit.

The Editorial Guide provides the information necessary to model terms in SNOMED CT. It is for those who edit content in the International Release, but it may also be useful to those creating extensions. It is a working document, subject to change and revision.

SNOMED CT is distributed in sets of electronic files. Supporting software tools are not necessarily provided directly by SNOMED International.

July 2020 International Release

Web browsable version: 

SNOMED CT Document Library:

Summary of changes since last release: 

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This document is a publication of International Health Terminology Standards Development Organisation, trading as SNOMED International.  SNOMED International owns and maintains SNOMED CT®.

Any modification of this document (including without limitation the removal or modification of this notice) is prohibited without the express written permission of SNOMED International. This document may be subject to updates. Always use the latest version of this document published by SNOMED International. This can be viewed online and downloaded by following the links on the front page or cover of this document.

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