This is the ValueSet that contains all the codes in BeVSAllergyIntoleranceType (https://www.ehealth.fgov.be/standards/fhir/allergy/ValueSet/be-vs-allergyintolerance-type) and BeVSAllergyIntoleranceType (https://www.ehealth.fgov.be/standards/fhir/allergy/ValueSet/be-vs-allergyintolerance-type). E.g. what you have to deal with if you get resources containing codes in either of them