This is the CodeSystem that contains all the codes in AllergyIntolerance Verification Status (http://terminology.hl7.org/CodeSystem/allergyintolerance-verification) and AllergyIntolerance Verification Status (http://terminology.hl7.org/CodeSystem/allergyintolerance-verification). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem 21d0d52d-6932-4516-ad29-944d62abcb69-587
This code system http://hl7.org/fhir/comparison/CodeSystem/21d0d52d-6932-4516-ad29-944d62abcb69-587
defines codes in an undefined hierarchy, but no codes are represented here