This is the ValueSet that contains codes in both BeVSVaccinationReasonCode (https://www.ehealth.fgov.be/standards/fhir/vaccination/ValueSet/be-vs-vaccination-reason-code) and BeVSVaccinationReasonCode (https://www.ehealth.fgov.be/standards/fhir/vaccination/ValueSet/be-vs-vaccination-reason-code).