# Identifier Type (2.6 - 1.4.0) - HL7 v2.6 Vocabulary v0.1.0

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **Identifier Type (2.6 - 1.4.0)**

## CodeSystem: Identifier Type (2.6 - 1.4.0) (Experimental) 

| | |
| :--- | :--- |
| *Official URL*:http://terminology.hl7.org/v2plusvocab/CodeSystem/identifierType | *Version*:1.4.0 |
| Active as of 2026-01-27 | *Computable Name*:IdentifierType |
| *Other Identifiers:*OID:2.16.840.1.113883.18.108 | |
| **Copyright/Legal**: HL7 Inc., 2026 | |

 
HL7-defined code system of concepts specifying type of identifier. Used in HL7 Version 2.x messaging data types CX, PLN, PPN, XCN and XON. 

 This Code system is referenced in the content logical definition of the following value sets: 

* [Hl7VSidentifierType](ValueSet-hl7VSidentifierType.md)



## Resource Content

```json
{
  "resourceType" : "CodeSystem",
  "id" : "identifierType",
  "extension" : [
    {
      "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated",
      "valueString" : "2.6"
    },
    {
      "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionHistory",
      "valueString" : "generate correct history somehow"
    },
    {
      "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-tableNo",
      "valueString" : "0203"
    }
  ],
  "url" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/identifierType",
  "identifier" : [
    {
      "system" : "urn:ietf:rfc:3986",
      "value" : "urn:oid:2.16.840.1.113883.18.108"
    }
  ],
  "version" : "1.4.0",
  "name" : "IdentifierType",
  "title" : "Identifier Type (2.6 - 1.4.0)",
  "status" : "active",
  "experimental" : true,
  "date" : "2026-01-27T19:31:23+00:00",
  "publisher" : "HL7/FO",
  "contact" : [
    {
      "name" : "HL7/FO",
      "telecom" : [
        {
          "system" : "url",
          "value" : "http://www.hl7.org"
        }
      ]
    }
  ],
  "description" : "HL7-defined code system of concepts specifying type of identifier. Used in HL7 Version 2.x messaging data types CX, PLN, PPN, XCN and XON.",
  "copyright" : "HL7 Inc., 2026",
  "caseSensitive" : true,
  "compositional" : false,
  "content" : "complete",
  "property" : [
    {
      "code" : "versionIntroduced",
      "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced",
      "description" : "version when was this code introduced",
      "type" : "string"
    },
    {
      "code" : "versionDeprecated",
      "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated",
      "description" : "version when was this code deprecated",
      "type" : "string"
    },
    {
      "code" : "status",
      "uri" : "http://hl7.org/fhir/concept-properties#status",
      "description" : "A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired",
      "type" : "code"
    },
    {
      "code" : "comment",
      "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment",
      "description" : "A string that provides additional detail pertinent to the use or understanding of the concept",
      "type" : "string"
    },
    {
      "code" : "usage",
      "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage",
      "description" : "usage notes for this code",
      "type" : "string"
    },
    {
      "code" : "modified",
      "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified",
      "description" : "date of last modification",
      "type" : "dateTime"
    },
    {
      "code" : "class",
      "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#class",
      "description" : "class",
      "type" : "code"
    }
  ],
  "concept" : [
    {
      "code" : "AM",
      "display" : "American Express",
      "definition" : "American Express",
      "designation" : [
        {
          "language" : "de",
          "value" : "American Express"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "AMA",
      "display" : "American Medical Association Number",
      "definition" : "American Medical Association Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "AN",
      "display" : "Account number",
      "definition" : "Account number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Kontonummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "ANC",
      "display" : "Account number Creditor",
      "definition" : "Account number Creditor",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "AND",
      "display" : "Account number debitor",
      "definition" : "Account number debitor",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "ANON",
      "display" : "Anonymous identifier",
      "definition" : "Anonymous identifier",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "ANT",
      "display" : "Temporary Account Number",
      "definition" : "Temporary Account Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "APRN",
      "display" : "Advanced Practice Registered Nurse number",
      "definition" : "Advanced Practice Registered Nurse number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "BA",
      "display" : "Bank Account Number",
      "definition" : "Bank Account Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "BC",
      "display" : "Bank Card Number",
      "definition" : "Bank Card Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "BCT",
      "display" : "Birth Certificate",
      "definition" : "Birth Certificate",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "BR",
      "display" : "Birth registry number",
      "definition" : "Birth registry number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Geburtsregisternummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "BRN",
      "display" : "Breed Registry Number",
      "definition" : "Breed Registry Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "CC",
      "display" : "Cost Center number",
      "definition" : "Cost Center number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "CONM",
      "display" : "Change of Name Document",
      "definition" : "Change of Name Document",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "CY",
      "display" : "County number",
      "definition" : "County number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "CZ",
      "display" : "Citizenship Card",
      "definition" : "Citizenship Card",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "DDS",
      "display" : "Dentist license number",
      "definition" : "Dentist license number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "DEA",
      "display" : "Drug Enforcement Administration registration number",
      "definition" : "Drug Enforcement Administration registration number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "DFN",
      "display" : "Drug Furnishing or prescriptive authority Number",
      "definition" : "Drug Furnishing or prescriptive authority Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "DI",
      "display" : "Diner's Club card",
      "definition" : "Diner's Club card",
      "designation" : [
        {
          "language" : "de",
          "value" : "Diners Club"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "DL",
      "display" : "Driver's license number",
      "definition" : "Driver's license number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Führerscheinnummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "DN",
      "display" : "Doctor number",
      "definition" : "Doctor number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Arztnummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "DO",
      "display" : "Osteopathic License number",
      "definition" : "Osteopathic License number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "DP",
      "display" : "Diplomatic Passport",
      "definition" : "Diplomatic Passport",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "DPM",
      "display" : "Podiatrist license number",
      "definition" : "Podiatrist license number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "DR",
      "display" : "Donor Registration Number",
      "definition" : "Donor Registration Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "DS",
      "display" : "Discover Card",
      "definition" : "Discover Card",
      "designation" : [
        {
          "language" : "de",
          "value" : "Discover Card"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "EI",
      "display" : "Employee number",
      "definition" : "Employee number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Arbeitnehmernummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "EN",
      "display" : "Employer number",
      "definition" : "Employer number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Arbeitgebernummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "ESN",
      "display" : "Staff Enterprise Number",
      "definition" : "Staff Enterprise Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "FI",
      "display" : "Facility ID",
      "definition" : "Facility ID",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "GI",
      "display" : "Guarantor internal identifier",
      "definition" : "Guarantor internal identifier",
      "designation" : [
        {
          "language" : "de",
          "value" : "interne ID des Zahlungspflichtigen"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "GL",
      "display" : "General ledger number",
      "definition" : "General ledger number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "GN",
      "display" : "Guarantor external  identifier",
      "definition" : "Guarantor external  identifier",
      "designation" : [
        {
          "language" : "de",
          "value" : "externe ID des Zahlungspflichtigen"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "HC",
      "display" : "Health Card Number",
      "definition" : "Health Card Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "IND",
      "display" : "Indigenous/Aboriginal",
      "definition" : "Indigenous/Aboriginal",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "JHN",
      "display" : "Jurisdictional health number (Canada)",
      "definition" : "Jurisdictional health number (Canada)",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "LI",
      "display" : "Labor and industries number",
      "definition" : "Labor and industries number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "LN",
      "display" : "License number",
      "definition" : "License number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "LR",
      "display" : "Local Registry ID",
      "definition" : "Local Registry ID",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "MA",
      "display" : "Patient Medicaid number",
      "definition" : "Patient Medicaid number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Armennummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "MB",
      "display" : "Member Number",
      "definition" : "Member Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "MC",
      "display" : "Patient's Medicare number",
      "definition" : "Patient's Medicare number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Rentnernummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "MCD",
      "display" : "Practitioner Medicaid number",
      "definition" : "Practitioner Medicaid number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "MCN",
      "display" : "Microchip Number",
      "definition" : "Microchip Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "MCR",
      "display" : "Practitioner Medicare number",
      "definition" : "Practitioner Medicare number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "MCT",
      "display" : "Marriage Certificate",
      "definition" : "Marriage Certificate",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "MD",
      "display" : "Medical License number",
      "definition" : "Medical License number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "MI",
      "display" : "Military ID number",
      "definition" : "Military ID number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "MR",
      "display" : "Medical record number",
      "definition" : "Medical record number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Krankenaktennummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "MRT",
      "display" : "Temporary Medical Record Number",
      "definition" : "Temporary Medical Record Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "MS",
      "display" : "MasterCard",
      "definition" : "MasterCard",
      "designation" : [
        {
          "language" : "de",
          "value" : "MasterCard"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "NCT",
      "display" : "Naturalization Certificate",
      "definition" : "Naturalization Certificate",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "NE",
      "display" : "National employer identifier",
      "definition" : "National employer identifier",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "NH",
      "display" : "National Health Plan Identifier",
      "definition" : "National Health Plan Identifier",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "NI",
      "display" : "National unique individual identifier",
      "definition" : "National unique individual identifier",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "NII",
      "display" : "National Insurance Organization Identifier",
      "definition" : "National Insurance Organization Identifier",
      "designation" : [
        {
          "language" : "de",
          "value" : "Institutskennzeichen der Krankenkasse"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "NIIP",
      "display" : "National Insurance Payor Identifier (Payor)",
      "definition" : "National Insurance Payor Identifier (Payor)",
      "designation" : [
        {
          "language" : "de",
          "value" : "Vertragskassennummer (VKNR)"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "NNxxx",
      "display" : "National Person Identifier where the xxx is the ISO table 3166 3-character (alphabetic) country code",
      "definition" : "National Person Identifier where the xxx is the ISO table 3166 3-character (alphabetic) country code",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "NP",
      "display" : "Nurse practitioner number",
      "definition" : "Nurse practitioner number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "NPI",
      "display" : "National provider identifier",
      "definition" : "National provider identifier",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "OD",
      "display" : "Optometrist license number",
      "definition" : "Optometrist license number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "PA",
      "display" : "Physician Assistant number",
      "definition" : "Physician Assistant number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Assistenzarztnummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "PC",
      "display" : "Parole Card",
      "definition" : "Parole Card",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "PCN",
      "display" : "Penitentiary/correctional institution Number",
      "definition" : "Penitentiary/correctional institution Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "PE",
      "display" : "Living Subject Enterprise Number",
      "definition" : "Living Subject Enterprise Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "PEN",
      "display" : "Pension Number",
      "definition" : "Pension Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "PI",
      "display" : "Patient internal identifier",
      "definition" : "Patient internal identifier",
      "designation" : [
        {
          "language" : "de",
          "value" : "interne Patienten-ID"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "PN",
      "display" : "Person number",
      "definition" : "Person number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Personen-ID"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "PNT",
      "display" : "Temporary Living Subject Number",
      "definition" : "Temporary Living Subject Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "PPIN",
      "display" : "Medicare/CMS Performing Provider Identification Number",
      "definition" : "Medicare/CMS Performing Provider Identification Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "PPN",
      "display" : "Passport number",
      "definition" : "Passport number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Passnummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "PRC",
      "display" : "Permanent Resident Card Number",
      "definition" : "Permanent Resident Card Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "PRN",
      "display" : "Provider number",
      "definition" : "Provider number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "PT",
      "display" : "Patient external identifier",
      "definition" : "Patient external identifier",
      "designation" : [
        {
          "language" : "de",
          "value" : "externe Patienten-ID"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "QA",
      "display" : "QA number",
      "definition" : "QA number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "RI",
      "display" : "Resource identifier",
      "definition" : "Resource identifier",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "RN",
      "display" : "Registered Nurse Number",
      "definition" : "Registered Nurse Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "RPH",
      "display" : "Pharmacist license number",
      "definition" : "Pharmacist license number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "RR",
      "display" : "Railroad Retirement number",
      "definition" : "Railroad Retirement number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Seniorenkartennummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "RRI",
      "display" : "Regional registry ID",
      "definition" : "Regional registry ID",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "RRP",
      "display" : "Railroad Retirement Provider",
      "definition" : "Railroad Retirement Provider",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "SL",
      "display" : "State license",
      "definition" : "State license",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "SN",
      "display" : "Subscriber Number",
      "definition" : "Subscriber Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "SP",
      "display" : "Study Permit",
      "definition" : "Study Permit",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "SR",
      "display" : "State registry ID",
      "definition" : "State registry ID",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "SS",
      "display" : "Social Security number",
      "definition" : "Social Security number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Sozialversicherungsnummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "TAX",
      "display" : "Tax ID number",
      "definition" : "Tax ID number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Steueridentifikationsnummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "TN",
      "display" : "Treaty Number/ (Canada)",
      "definition" : "Treaty Number/ (Canada)",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.5"
        }
      ]
    },
    {
      "code" : "TPR",
      "display" : "Temporary Permanent Resident (Canada)",
      "definition" : "Temporary Permanent Resident (Canada)",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "U",
      "display" : "Unspecified identifier",
      "definition" : "Unspecified identifier",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "UPIN",
      "display" : "Medicare/CMS (formerly HCFA)'s Universal Physician Identification numbers",
      "definition" : "Medicare/CMS (formerly HCFA)'s Universal Physician Identification numbers",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "VN",
      "display" : "Visit number",
      "definition" : "Visit number",
      "designation" : [
        {
          "language" : "de",
          "value" : "Fallnummer"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "VP",
      "display" : "Visitor Permit",
      "definition" : "Visitor Permit",
      "designation" : [
        {
          "language" : "de",
          "value" : "Besucherkennung"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "VS",
      "display" : "VISA",
      "definition" : "VISA",
      "designation" : [
        {
          "language" : "de",
          "value" : "VISA"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    },
    {
      "code" : "WC",
      "display" : "WIC identifier",
      "definition" : "WIC identifier",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3.1"
        }
      ]
    },
    {
      "code" : "WCN",
      "display" : "Workers' Comp Number",
      "definition" : "Workers' Comp Number",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.4"
        }
      ]
    },
    {
      "code" : "WP",
      "display" : "Work Permit",
      "definition" : "Work Permit",
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.6"
        }
      ]
    },
    {
      "code" : "XX",
      "display" : "Organization identifier",
      "definition" : "Organization identifier",
      "designation" : [
        {
          "language" : "de",
          "value" : "Organisations-ID"
        }
      ],
      "property" : [
        {
          "code" : "versionIntroduced",
          "valueString" : "2.3"
        }
      ]
    }
  ]
}

```
