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Our organization was established as the International Health Terminology Standards Development Organisation in 2007.


The founding 9 charter Members were Australia, Canada, Denmark, Lithuania, Sweden, the Netherlands, New Zealand, the United Kingdom and the United States.

Trading as SNOMED International, the organization has grown to 49 Members and has issued Affiliate Licenses to more than 30,000 individuals and organizations.


The designations employed and the presentation of the material on this map do not imply the expression of any opinion whatsoever on the part of IHTSDO trading as SNOMED International concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. The depiction and use of boundaries, geographic names and related data shown on the map are not warranted to be error free nor do they imply official endorsement or acceptance by IHTSDO trading as SNOMED International or its member organizations. Further, Member organizations are not accountable for any data presented on this map.

Updated: April 23, 2024

Members of SNOMED International can be an agency of a national government, or another body (such as a corporation or regional government agency) endorsed by an appropriate national government authority within the territory it represents.

Members play a critical governance role through the approval of the organization's budget and strategy. 


Member onboarding


Arrangements for governance of the International Health Terminology Standards Development Organisation (trading as SNOMED International) and SNOMED CT are specified in the IHTSDO Articles of Association.


Change or add to SNOMED CT


SNOMED CT is a growing, evolving product. Here you can learn about how you can help contribute to making it even stronger.  

chamge or add

Managed service


The Managed Service was created to provide an online service that would allow SNOMED International Members to manage and distribute a release of a SNOMED CT local extension from start to finish in simple, standard manner. The Managed Service was designed to provide a value for money, off the shelf service for SNOMED International Members, benefitting from the use of a shared platform.

The Managed Service provides a fully hosted service with:

  • access to SNOMED International technical and content staff for support;

  • use of the SNOMED CT Authoring Platform and the Reference Set & Translation tool;

  • validation, release and distribution of SNOMED CT local extensions twice a year.


If you are interested in getting more information on the SNOMED International Managed Service, please contact your local CSRM representative.


Namespace identifiers


If you are interested in creating your own content or extension, you will need a Namespace Identifier so your content can be associated with you.

Namespace application form

To get a Namespace Identifier, please fill out a Namespace Identifier Application Form and email it to




Software and tools that have been designed and developed by SNOMED International primarily support the International and Spanish Editions of SNOMED CT.

They are also integral to the provision of the Managed Service to those Members who sign up to use the hosted authoring platform for the management of local country extensions.

software tooling.jpg

Managed service

Our fully hosted service supports Members with management of their SNOMED CT releases



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