This is the CodeSystem that contains codes in both 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).