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