<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="namingsystem-identifier-type"/>
  <meta>
    <lastUpdated value="2026-04-01T17:59:15.240+00:00"/>
  </meta>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml">
      <p class="res-header-id">
        <b>Generated Narrative: CodeSystem namingsystem-identifier-type</b>
      </p>
      <a name="namingsystem-identifier-type"> </a>
      <a name="hcnamingsystem-identifier-type"> </a>
      <p>This case-sensitive code system 
        <code>http://hl7.org/fhir/namingsystem-identifier-type</code> defines the following codes:
      </p>
      <table class="codes">
        <tr>
          <td style="white-space:nowrap">
            <b>Code</b>
          </td>
          <td>
            <b>Display</b>
          </td>
          <td>
            <b>Definition</b>
          </td>
        </tr>
        <tr>
          <td style="white-space:nowrap">oid
            <a name="namingsystem-identifier-type-oid"> </a>
          </td>
          <td>OID</td>
          <td>
            <div>
              <p>An ISO object identifier; e.g. 1.2.3.4.5.</p>

            </div>
          </td>
        </tr>
        <tr>
          <td style="white-space:nowrap">uuid
            <a name="namingsystem-identifier-type-uuid"> </a>
          </td>
          <td>UUID</td>
          <td>
            <div>
              <p>A universally unique identifier of the form a5afddf4-e880-459b-876e-e4591b0acc11.</p>

            </div>
          </td>
        </tr>
        <tr>
          <td style="white-space:nowrap">uri
            <a name="namingsystem-identifier-type-uri"> </a>
          </td>
          <td>URI</td>
          <td>
            <div>
              <p>A uniform resource identifier (ideally a URL - uniform resource locator); e.g. http://unitsofmeasure.org.</p>

            </div>
          </td>
        </tr>
        <tr>
          <td style="white-space:nowrap">iri-stem
            <a name="namingsystem-identifier-type-iri-stem"> </a>
          </td>
          <td>IRI stem</td>
          <td>
            <div>
              <p>An IRI string that can be prepended to the code to obtain a concept IRI for RDF applications. This should be a valid, absolute IRI as defined in RFC 3987. See 
                <a href="rdf.html#iri-stem">the RDF spec</a> for details on how this value may be used.
              </p>

            </div>
          </td>
        </tr>
        <tr>
          <td style="white-space:nowrap">v2csmnemonic
            <a name="namingsystem-identifier-type-v2csmnemonic"> </a>
          </td>
          <td>V2CSMNemonic</td>
          <td>
            <div>
              <p>A short string published by HL7 for use in the V2 family of standsrds to idenfify a code system in the V12 coded data types CWE, CNE, and CF. The code values are also published by HL7 at http://www.hl7.org/Special/committees/vocab/table_0396/index.cfm</p>

            </div>
          </td>
        </tr>
        <tr>
          <td style="white-space:nowrap">other
            <a name="namingsystem-identifier-type-other"> </a>
          </td>
          <td>Other</td>
          <td>
            <div>
              <p>Some other type of unique identifier; e.g. HL7-assigned reserved string such as LN for LOINC.</p>

            </div>
          </td>
        </tr>
      </table>
    </div>
  </text>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="vocab"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="normative"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="4"/>
  </extension>
  <url value="http://hl7.org/fhir/namingsystem-identifier-type"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.4.493"/>
  </identifier>
  <identifier>
    <use value="old"/>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.1.486"/>
  </identifier>
  <identifier>
    <use value="old"/>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.2.293"/>
  </identifier>
  <version value="6.0.0-ballot4"/>
  <name value="NamingSystemIdentifierType"/>
  <title value="Naming System Identifier Type"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2023-01-26T15:53:48Z"/>
  <publisher value="HL7 (FHIR Project)"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/fhir"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="fhir@lists.hl7.org"/>
    </telecom>
  </contact>
  <description value="Identifies the style of unique identifier used to identify a namespace."/>
  <jurisdiction>
    <coding>
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
      <code value="001"/>
      <display value="World"/>
    </coding>
  </jurisdiction>
  <caseSensitive value="true"/>
  <valueSet value="http://hl7.org/fhir/ValueSet/namingsystem-identifier-type"/>
  <content value="complete"/>
  <concept>
    <code value="oid"/>
    <display value="OID"/>
    <definition value="An ISO object identifier; e.g. 1.2.3.4.5."/>
  </concept>
  <concept>
    <code value="uuid"/>
    <display value="UUID"/>
    <definition value="A universally unique identifier of the form a5afddf4-e880-459b-876e-e4591b0acc11."/>
  </concept>
  <concept>
    <code value="uri"/>
    <display value="URI"/>
    <definition value="A uniform resource identifier (ideally a URL - uniform resource locator); e.g. http://unitsofmeasure.org."/>
  </concept>
  <concept>
    <code value="iri-stem"/>
    <display value="IRI stem"/>
    <definition value="An IRI string that can be prepended to the code to obtain a concept IRI for RDF applications. This should be a valid, absolute IRI as defined in RFC 3987. See [the RDF spec](rdf.html#iri-stem) for details on how this value may be used."/>
  </concept>
  <concept>
    <code value="v2csmnemonic"/>
    <display value="V2CSMNemonic"/>
    <definition value="A short string published by HL7 for use in the V2 family of standsrds to idenfify a code system in the V12 coded data types CWE, CNE, and CF. The code values are also published by HL7 at http://www.hl7.org/Special/committees/vocab/table_0396/index.cfm"/>
  </concept>
  <concept>
    <code value="other"/>
    <display value="Other"/>
    <definition value="Some other type of unique identifier; e.g. HL7-assigned reserved string such as LN for LOINC."/>
  </concept>
</CodeSystem>