This is the CodeSystem that contains all the codes in Danh mục kỹ thuật KCB (Phụ lục 1) — VN Medical Procedure Catalogue (http://fhir.hl7.org.vn/core/CodeSystem/vn-dvkt-cs) and Danh mục kỹ thuật KCB (Phụ lục 1) — VN Medical Procedure Catalogue (http://fhir.hl7.org.vn/core/CodeSystem/vn-dvkt-cs). E.g. what you have to deal with if you get resources containing codes in either of them