Terminology Services on FHIR
summary
FHIR exposes a terminology service stack that delivers concrete operations: CodeSystem, ValueSet, ConceptMap are used to declare systems, define sets and map concepts; the API supports $expand, $validate-code, $translate, $subsumes to materialize expansions, check validity, translate SNOMED↔ICD and test hierarchy relationships. Examples show expansions returning many descendant codes (e.g., asthma, hypertension), lookup returning full properties including local extensions, and validate-code returning true for known codes, enabling typeahead, batch expansion and translation workflows.
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chapters (10)
- 0:00Introduction and speaker intro
- 4:09Where to find FHIR terminology specs
- 9:31Code systems and value sets overview
- 13:04Binding strength in FHIR
- 18:22Code system resource details
- 23:16Value set resource and expansions
- 32:26Well-known terminologies in FHIR
- 37:27Terminology services purpose and history
- 39:13Key terminology service operations
- 45:31Q&A and closing remarks