Intersection of http://hl7.org/fhir/ValueSet/marital-status and https://www.ehealth.fgov.be/standards/fhir/core/ValueSet/be-civilstate
This is the ValueSet that contains codes in both MaritalStatus (http://hl7.org/fhir/ValueSet/marital-status) and BeCivilState (https://www.ehealth.fgov.be/standards/fhir/core/ValueSet/be-civilstate).