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

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

CodeSystem

Generated Narrative: CodeSystem a51fcf0b-5801-4baf-ad55-a337a1600c4b-545

This code system http://hl7.org/fhir/comparison/CodeSystem/a51fcf0b-5801-4baf-ad55-a337a1600c4b-545 defines codes in an undefined hierarchy, but no codes are represented here

LvlCodeDisplayDefinition
1unconfirmed UnconfirmedThe propensity for a reaction to the identified substance has not been objectively verified.
2  presumed PresumedThe available clinical information supports a high liklihood of the propensity for a reaction to the identified substance.
2  presumed PresumedThe available clinical information supports a high liklihood of the propensity for a reaction to the identified substance.
1confirmed ConfirmedThe propensity for a reaction to the identified substance has been objectively verified (which may include clinical evidence by testing, rechallenge, or observation).
1refuted RefutedA propensity for a reaction to the identified substance has been disputed or disproven with a sufficient level of clinical certainty to justify invalidating the assertion. This might or might not include testing or rechallenge.
1entered-in-error Entered in ErrorThe statement was entered in error and is not valid.