Purpose

Reference sets can be added in an extension to meet specific national or local requirements. Reasons for adding a reference set include:

• Specifying a subset of components for inclusion or exclusion
• Mapping between SNOMED CT and other code systems to support data integration or communication
• Specifying the acceptability of descriptions in a given language or dialect

For more information about a range of purposes for reference sets, please refer to the Practical Guide to Reference Sets.