Union of http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical and http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical

This is the CodeSystem that contains all the codes in AllergyIntolerance Clinical Status Codes (http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical) and AllergyIntolerance Clinical Status Codes (http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: CodeSystem 974a4042-5ef9-4d87-bcaa-92de671fa085-56

This code system http://hl7.org/fhir/comparison/CodeSystem/974a4042-5ef9-4d87-bcaa-92de671fa085-56 defines codes in an undefined hierarchy, but no codes are represented here

LvlCodeDisplayDefinition
1active ActiveThe subject is currently experiencing, or is at risk of, a reaction to the identified substance.
1inactive InactiveThe subject is no longer at risk of a reaction to the identified substance.
2  resolved ResolvedA reaction to the identified substance has been clinically reassessed by testing or re-exposure and is considered no longer to be present. Re-exposure could be accidental, unplanned, or outside of any clinical setting.
2  resolved ResolvedA reaction to the identified substance has been clinically reassessed by testing or re-exposure and is considered no longer to be present. Re-exposure could be accidental, unplanned, or outside of any clinical setting.