STU Update Publication of HL7 FHIR® Implementation Guide: Vital Records Death Reporting (VRDR), Release 1 STU2.1 – US Realm
Learn more at https://www.hl7.org/implement/standards/product_brief.cfm?product_id=532 or see the specification at https://hl7.org/fhir/us/vrdr/STU2.1/