http://hl7.org/fhir/StructureDefinition/allergyintolerance-duration|4.0.1
The amount of time that the Adverse Reaction persisted.
| type | destination |
|---|---|
| baseDefinition | http://hl7.org/fhir/StructureDefinition/Extension |
| type | http://hl7.org/fhir/StructureDefinition/Extension |
| Extension.value[x].type | http://hl7.org/fhir/StructureDefinition/Duration |