This is the ValueSet that contains all the codes in Encounter Voluntary Status Value Set (http://hl7.eu/fhir/hdr/ValueSet/admission-voluntary-status-vs) and Encounter Voluntary Status Value Set (http://hl7.eu/fhir/hdr/ValueSet/admission-voluntary-status-vs). E.g. what you have to deal with if you get resources containing codes in either of them