Reference record for OID 2.16.1

Two character country codes Note that this OID was erroneously entered into HL7 some years ago, and has recently been replaced by 1.0.3166.1 at the request of ISO.

Status in source: retired.

Names: ISO31661retired, v3-ISO3166-1retired

{
  "url": "http://terminology.hl7.org/CodeSystem/v3-ISO3166-1retired",
  "date": "2019-03-20",
  "title": "ISO 3166 2 Character Country Codes",
  "status": "retired",
  "contact": [
    {
      "name": "International Standards Organization (ISO)"
    }
  ],
  "version": "2.0.1",
  "publisher": "ISO",
  "experimental": false,
  "caseSensitive": true,
  "resource_type": "CodeSystem",
  "oid_identifier": {
    "value": "urn:oid:2.16.1",
    "system": "urn:ietf:rfc:3986"
  },
  "hierarchyMeaning": "is-a"
}

• HL7 Terminology · Publisher's source file
  Source location: package/CodeSystem-v3-ISO3166-1retired.json#/identifier/0.
  Source version and references

  Downloaded: 2026-10-19T20:26:54.046133+00:00. SHA-256: cde07102d3d74210128b29fc5fc0bce48f5187fbc39eee29a747ec89f0f2ed45

  {'kind': 'identifier-system', 'details': {'url': 'http://terminology.hl7.org/CodeSystem/v3-ISO3166-1retired', 'date': '2019-03-20', 'title': 'ISO 3166 2 Character Country Codes', 'status': 'retired', 'contact': [{'name': 'International Standards Organization (ISO)'}], 'version': '2.0.1', 'document': {'file': 'package/CodeSystem-v3-ISO3166-1retired.json', 'package': {'date': '20260922024003', 'name': 'hl7.terminology', 'license': 'CC0-1.0', 'version': '7.4.0', 'canonical': 'http://terminology.hl7.org', 'fhirVersions': ['5.0.0']}}, 'publisher': 'ISO', 'experimental': False, 'caseSensitive': True, 'resource_type': 'CodeSystem', 'oid_identifier': {'value': 'urn:oid:2.16.1', 'system': 'urn:ietf:rfc:3986'}, 'hierarchyMeaning': 'is-a'}, 'parser_version': 'hl7-terminology-1'}