SNOMED CT Content Request Service

SNOMED International coordinates requests for additions or changes to SNOMED CT through its Members' National Release Centers (NRCs). For more information about the processes in each country/territory, please access the relevant Member page.

Members' NRCs and other authorized users submit requests for additions or changes via the SNOMED CT Content Request Service (CRS). Requests that meet inclusion criteria for the International Release are addressed by SNOMED International staff. If a request is declined, a reason and explanation is provided to the requester, who may choose to appeal the decision to the Head of Terminology.

Guidance information for requesting changes to SNOMED CT

Customer Guidance - Requesting Changes to SNOMED CT 

Presentation on Making a Request Submission:
  • This E-Learning presentation covers the processes, criteria and considerations for creating good quality request submissions

Request submission dates

SNOMED International is now receiving request submissions for the January 2019 SNOMED CT International Release. 

Request submissions received between 6 April 2018 and 3rd October 2018 inclusive will be reviewed, however please note there are changes to the Service Level Agreement for the January 2019 release. 

For further details please review the most recent CRS Service Level Agreement.


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 info@snomed.org.

Namespace identification policy

Namespace identifier registry


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