code-system-instances.md

FHIR CodeSystems

List all available Code System instances (modules and versions)

http://localhost:8080/fhir/CodeSystem

Get Code System instance by id

http://localhost:8080/fhir/CodeSystem/sct_900000000000207008_20200309

Search for CodeSystems by version

http://localhost:8080/fhir/CodeSystem?version:contains=20220131

Search for CodeSystems by publisher

http://localhost:8080/fhir/CodeSystem?publisher:contains=SNOMED

CodeSystem Operations

All the operations that can be performed directly against the CodeSystem endpoint (specifying a SNOMED Edition via a system or version parameter), can also be performed using the CodeSystem instance indentifier directly, instead of the equivalent parameters. There is no material difference between these two apporaches and the results are expected to be identical.

Validate Code against a particular Code System Instance

http://localhost:8080/fhir/CodeSystem/sct_900000000000207008_20200309/$validate-code?code=840539006 See CodeSystem Validate Code for more examples of validate code

Lookup a Code against a particular Code System Instance

http://localhost:8080/fhir/CodeSystem/sct_900000000000207008_20200309/$lookup?code=840539006 See CodeSystem Lookup for more examples of code lookup

Check subsumption relationship in a particular Code System Instance

http://localhost:8080/fhir/CodeSystem/sct_900000000000207008_20200309/$subsumes?codeA=399144008&codeB=73211009 See CodeSystem Subsumes for more examples of subsumption testing