How is SNOMED CT developed and maintained?
SNOMED CT is continuously updated to meet the needs of users around the world. Revisions to the international version of SNOMED CT are released twice a year. Each release includes the core of the terminology (concepts, descriptions, and relationships), together with works to support the implementation and use of SNOMED CT, including subsets, cross maps to existing classifications and coding schemes, and an extensive set of guidelines. These updates are driven by users of the terminology. Examples include refinements to descriptions, re-modeling of concepts, or the addition of new concepts. Prior to release, the SNOMED CT content undergoes a quality assurance process. A preliminary version is then pre-released to members for broader review before the final files are generated and distributed.
