This is the ValueSet that contains all the codes in Uds Plus Housing Status Codes (http://fhir.org/guides/hrsa/uds-plus/ValueSet/udsplus-housing-status) and Uds Plus Housing Status Codes (http://fhir.org/guides/hrsa/uds-plus/ValueSet/udsplus-housing-status). E.g. what you have to deal with if you get resources containing codes in either of them