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