This is the ValueSet that contains all the codes in Loại định danh Việt Nam — Vietnam Identifier Type ValueSet (http://fhir.hl7.org.vn/core/ValueSet/vn-identifier-type-vs) and Loại định danh Việt Nam — Vietnam Identifier Type ValueSet (http://fhir.hl7.org.vn/core/ValueSet/vn-identifier-type-vs). E.g. what you have to deal with if you get resources containing codes in either of them