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FHIR Infrastructure Work GroupMaturity Level: 3Ballot Status: Trial Use

The following names (URIs) may be used in the system element of the Identifier data type. If a URI is defined here, it SHALL be used in preference to any other identifying mechanism. If an identifier system is not listed here, the correct URI may be determined by working through the following list, in order:

  • the HL7 OID Registry
  • the documentation associated with the identifier
  • consulting the owner of the identifier
  • asking on the HL7 vocabulary mailing list

See also the list of known coding systems that can be used in the system element of the Coding data type. Additional identifier systems may be registered on the HL7 FHIR registry at .

Important Note: This list of URIs is incomplete and subject to change. Some values may be dropped and others will likely be added in the coming months as HL7 institutes formal processes around URIs in vocabulary.

The URI column indicates the correct value to use in the Identifier.system. The OID is provided for compatibility with HL7 v2 /CDA based systems. Note that any URL in is reserved for testing and documentation purposes.

identifier URI OID (for non-FHIR systems) Type Comment
URIs (W3C ): when the identifier is a URI urn:ietf:rfc:3986 2.16.840.1.113883.4.873 As defined by RFC 3986 (with many schemes defined in many RFCs). For OIDs and UUIDs, use the URN form (urn:oid: (note: lowercase) and urn:uuid:
United States Social Security Number 2.16.840.1.113883.4.1 SB (US) The SSN is represented in resources with dashes removed
United States Medicare Number 2.16.840.1.113883.4.572 SB (US) Medicare Numbers (HIC or HICN) are represented without any spaces or dashes
United States National Provider Identifier 2.16.840.1.113883.4.6 PRN (US)
Alaska Driver's License urn:oid:2.16.840.1.113883.4.3.2 2.16.840.1.113883.4.3.2 DL (US)
Alabama Driver's License urn:oid:2.16.840.1.113883.4.3.1 2.16.840.1.113883.4.3.1 DL (US)
Arkansas Driver's License urn:oid:2.16.840.1.113883.4.3.5 2.16.840.1.113883.4.3.5 DL (US)
Arizona Driver's License urn:oid:2.16.840.1.113883.4.3.4 2.16.840.1.113883.4.3.4 DL (US)
California Driver's License urn:oid:2.16.840.1.113883.4.3.6 2.16.840.1.113883.4.3.6 DL (US)
Colorado Driver's License urn:oid:2.16.840.1.113883.4.3.8 2.16.840.1.113883.4.3.8 DL (US)
Connecticut Driver's License urn:oid:2.16.840.1.113883.4.3.9 2.16.840.1.113883.4.3.9 DL (US)
DC Driver's License urn:oid:2.16.840.1.113883.4.3.11 2.16.840.1.113883.4.3.11 DL (US)
Delaware Driver's License urn:oid:2.16.840.1.113883.4.3.10 2.16.840.1.113883.4.3.10 DL (US)
Florida Driver's License urn:oid:2.16.840.1.113883.4.3.12 2.16.840.1.113883.4.3.12 DL (US)
Georgia Driver's License urn:oid:2.16.840.1.113883.4.3.13 2.16.840.1.113883.4.3.13 DL (US)
Hawaii Driver's License urn:oid:2.16.840.1.113883.4.3.15 2.16.840.1.113883.4.3.15 DL (US)
Indiana Driver's License urn:oid:2.16.840.1.113883.4.3.18 2.16.840.1.113883.4.3.18 DL (US)
Iowa Driver's License urn:oid:2.16.840.1.113883.4.3.19 2.16.840.1.113883.4.3.19 DL (US)
Idaho Driver's License urn:oid:2.16.840.1.113883.4.3.16 2.16.840.1.113883.4.3.16 DL (US)
Illinois Driver's License urn:oid:2.16.840.1.113883.4.3.17 2.16.840.1.113883.4.3.17 DL (US)
Kansas Driver's License urn:oid:2.16.840.1.113883.4.3.20 2.16.840.1.113883.4.3.20 DL (US)
Kentucky Driver's License urn:oid:2.16.840.1.113883.4.3.21 2.16.840.1.113883.4.3.21 DL (US)
Louisiana Driver's License urn:oid:2.16.840.1.113883.4.3.22 2.16.840.1.113883.4.3.22 DL (US)
Massachusetts Driver's License urn:oid:2.16.840.1.113883.4.3.25 2.16.840.1.113883.4.3.25 DL (US)
Maryland Driver's License urn:oid:2.16.840.1.113883.4.3.24 2.16.840.1.113883.4.3.24 DL (US)
Maine Driver's License urn:oid:2.16.840.1.113883.4.3.23 2.16.840.1.113883.4.3.23 DL (US)
Michigan Driver's License urn:oid:2.16.840.1.113883.4.3.26 2.16.840.1.113883.4.3.26 DL (US)
Minnesota Driver's License urn:oid:2.16.840.1.113883.4.3.27 2.16.840.1.113883.4.3.27 DL (US)
Missouri Driver's License urn:oid:2.16.840.1.113883.4.3.29 2.16.840.1.113883.4.3.29 DL (US)
Mississippi Driver's License urn:oid:2.16.840.1.113883.4.3.28 2.16.840.1.113883.4.3.28 DL (US)
Montana Driver's License urn:oid:2.16.840.1.113883.4.3.30 2.16.840.1.113883.4.3.30 DL (US)
New York Driver's License urn:oid:2.16.840.1.113883.4.3.36 2.16.840.1.113883.4.3.36 DL (US)
North Carolina Driver's License urn:oid:2.16.840.1.113883.4.3.37 2.16.840.1.113883.4.3.37 DL (US)
North Dakota Driver's License urn:oid:2.16.840.1.113883.4.3.38 2.16.840.1.113883.4.3.38 DL (US)
Nebraska Driver's License urn:oid:2.16.840.1.113883.4.3.31 2.16.840.1.113883.4.3.31 DL (US)
New Hampshire Driver's License urn:oid:2.16.840.1.113883.4.3.33 2.16.840.1.113883.4.3.33 DL (US)
New Jersey Driver's License urn:oid:2.16.840.1.113883.4.3.34 2.16.840.1.113883.4.3.34 DL (US)
New Mexico Driver's License urn:oid:2.16.840.1.113883.4.3.35 2.16.840.1.113883.4.3.35 DL (US)
Nevada Driver's License urn:oid:2.16.840.1.113883.4.3.32 2.16.840.1.113883.4.3.32 DL (US)
Ohio Driver's License urn:oid:2.16.840.1.113883.4.3.39 2.16.840.1.113883.4.3.39 DL (US)
Oklahoma Driver's License urn:oid:2.16.840.1.113883.4.3.40 2.16.840.1.113883.4.3.40 DL (US)
Oregon Driver's License urn:oid:2.16.840.1.113883.4.3.41 2.16.840.1.113883.4.3.41 DL (US)
Pennsylvania Driver's License urn:oid:2.16.840.1.113883.4.3.42 2.16.840.1.113883.4.3.42 DL (US)
Rhode Island Driver's License urn:oid:2.16.840.1.113883.4.3.44 2.16.840.1.113883.4.3.44 DL (US)
South Carolina Driver's License urn:oid:2.16.840.1.113883.4.3.45 2.16.840.1.113883.4.3.45 DL (US)
South Dakota Driver's License urn:oid:2.16.840.1.113883.4.3.46 2.16.840.1.113883.4.3.46 DL (US)
Tennessee Driver's License urn:oid:2.16.840.1.113883.4.3.47 2.16.840.1.113883.4.3.47 DL (US)
Texas Driver's License urn:oid:2.16.840.1.113883.4.3.48 2.16.840.1.113883.4.3.48 DL (US)
Utah Driver's License urn:oid:2.16.840.1.113883.4.3.49 2.16.840.1.113883.4.3.49 DL (US)
Virginia Driver's License urn:oid:2.16.840.1.113883.4.3.51 2.16.840.1.113883.4.3.51 DL (US)
Vermont Driver's License urn:oid:2.16.840.1.113883.4.3.50 2.16.840.1.113883.4.3.50 DL (US)
Washington Driver's License urn:oid:2.16.840.1.113883.4.3.53 2.16.840.1.113883.4.3.53 DL (US)
Wisconsin Driver's License urn:oid:2.16.840.1.113883.4.3.55 2.16.840.1.113883.4.3.55 DL (US)
West Virginia Driver's License urn:oid:2.16.840.1.113883.4.3.54 2.16.840.1.113883.4.3.54 DL (US)
Wyoming Driver's License urn:oid:2.16.840.1.113883.4.3.56 2.16.840.1.113883.4.3.56 DL (US)