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Create Expression Repository

Create CodeSystem Supplement for Expressions

• Create the CodeSystem supplement. This supplements a specific module and version of SNOMED CT
• 1234007 is the identifier of the module that contains the postcoordination content

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• Create ValueSet for expressions (can't use CodeSystem.valueSet because not a real code system?)
• Create CodeSystem for generated identifiers - specify CodeSystem.valueSet 

Create CodeSystem Expression Identifiers

PUT /CodeSystem/snomed-exp-id

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• Create the ConceptMap to map expressions to generated short identifiers (only needed if EHR cannot store expressions) 
  • A SNOMED Namespace is required for identifier generation
    • The Implementation Support Team has ideas about how to simplify the process of namespace assignment for postcoordination

Create ConceptMap

PUT /ConceptMap/snomed-exp-id-map

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