Union of http://hl7.org/fhir/StructureDefinition/openEHR-exposureDate and http://hl7.org/fhir/StructureDefinition/openEHR-exposureDate

This is the set of resources that conform to either of the profiles AllergyIntolerance Exposure Date (http://hl7.org/fhir/StructureDefinition/openEHR-exposureDate) and AllergyIntolerance Exposure Date (http://hl7.org/fhir/StructureDefinition/openEHR-exposureDate). E.g. what you have to deal with if you get resources conforming to one of them

Structure

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1Date(/time) of first exposure to Substance
... url 1..1uriidentifies the meaning of the extension
... value[x] 1..1dateTimeValue of extension

doco Documentation for this format