Terminology Services
The recommended approach for implementing SNOMED CT in clinical systems is using standard Terminology Services. HL7 FHIR provides the CodeSystem, Valuesets, and ConceptMaps resources and their corresponding operations to support access to terminologies using a standardized approach.
These are some examples of how FHIR Terminology services can be used to resolve the terminology bindings described in this guide. using a demo FHIR terminology server:
AllergyIntolerance.code
If recording is based on substances and products and specifies the type of reaction in "type":
<<105590001
AllergyIntolerance.code
If recording is based on finding concepts precoordinating the type of reaction :
<<418038007
AllergyIntolerance.code
When using precoordinated Situation concepts to represent the absence of an allergic propensity
<<716186003
AllergyIntolerance. reaction.substance
<<105590001
AllergyIntolerance. reaction.manifestation
<<404684003
AllergyIntolerance. reaction.exposureRoute
<<284009009
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