This is the ValueSet that contains all the codes in Đối tượng khám sức khỏe định kỳ (kỷ nguyên QĐ 1551/QĐ-BYT — legacy) — Vietnam Health Checkup Subject Legacy ValueSet (http://fhir.hl7.org.vn/core/ValueSet/vn-health-checkup-subject-legacy-vs) and Đối tượng khám sức khỏe định kỳ (giai đoạn hiệu lực QĐ 1551/QĐ-BYT — legacy) — Vietnam Health Checkup Subject Legacy ValueSet (http://fhir.hl7.org.vn/core/ValueSet/vn-health-checkup-subject-legacy-vs). E.g. what you have to deal with if you get resources containing codes in either of them