This is the CodeSystem that contains all the codes in BeCSPartialAgreementValues (https://www.ehealth.fgov.be/standards/fhir/mycarenet/CodeSystem/be-cs-partial-agreement-values) and BeCSPartialAgreementValues (https://www.ehealth.fgov.be/standards/fhir/mycarenet/CodeSystem/be-cs-partial-agreement-values). E.g. what you have to deal with if you get resources containing codes in either of them