Interoperable Digital Identity and Patient Matching, published by HL7 International / Patient Administration. This guide is not an authorized publication; it is the continuous build for version 3.0.0-current built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-identity-matching-ig/ and changes regularly. See the Directory of published versions

• Narrative Content
• XML
• JSON
• TTL

: FAST Identity Assurance Level Code System

Raw xml | Download

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="fast-identity-assurance-level"/>
  <language value="en"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem fast-identity-assurance-level</b></p><a name="fast-identity-assurance-level"> </a><a name="hcfast-identity-assurance-level"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/us/identity-matching/CodeSystem/fast-identity-assurance-level</code> defines the following codes:</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>Display</b></td></tr><tr><td style="white-space:nowrap">IAL1<a name="fast-identity-assurance-level-IAL1"> </a></td><td>Identity Assurance Level 1</td></tr><tr><td style="white-space:nowrap">IAL2<a name="fast-identity-assurance-level-IAL2"> </a></td><td>Identity Assurance Level 2</td></tr><tr><td style="white-space:nowrap">IAL3<a name="fast-identity-assurance-level-IAL3"> </a></td><td>Identity Assurance Level 3</td></tr><tr><td style="white-space:nowrap">AAL1<a name="fast-identity-assurance-level-AAL1"> </a></td><td>Authenticator Assurance Level 1</td></tr><tr><td style="white-space:nowrap">AAL2<a name="fast-identity-assurance-level-AAL2"> </a></td><td>Authenticator Assurance Level 2</td></tr><tr><td style="white-space:nowrap">AAL3<a name="fast-identity-assurance-level-AAL3"> </a></td><td>Authenticator Assurance Level 3</td></tr><tr><td style="white-space:nowrap">FAL1<a name="fast-identity-assurance-level-FAL1"> </a></td><td>Federation Assurance Level 1</td></tr><tr><td style="white-space:nowrap">FAL2<a name="fast-identity-assurance-level-FAL2"> </a></td><td>Federation Assurance Level 2</td></tr><tr><td style="white-space:nowrap">FAL3<a name="fast-identity-assurance-level-FAL3"> </a></td><td>Federation Assurance Level 3</td></tr></table></div>
  </text>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="pa"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="informative">
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
        <valueCanonical
                        value="http://hl7.org/fhir/us/identity-matching/ImplementationGuide/hl7.fhir.us.identity-matching"/>
      </extension>
    </valueCode>
  </extension>
  <url
       value="http://hl7.org/fhir/us/identity-matching/CodeSystem/fast-identity-assurance-level"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.40.81.16.2"/>
  </identifier>
  <version value="3.0.0-current"/>
  <name value="FASTAssuranceLevelCS"/>
  <title value="FAST Identity Assurance Level Code System"/>
  <status value="active"/>
  <experimental value="true"/>
  <date value="2026-08-20T16:01:25+00:00"/>
  <publisher value="HL7 International / Patient Administration"/>
  <contact>
    <name value="HL7 International / Patient Administration"/>
    <telecom>
      <system value="url"/>
      <value value="http://www.hl7.org/Special/committees/pafm"/>
    </telecom>
  </contact>
  <description
               value="NIST SP 800-63-3 assurance levels used to qualify a CSP-issued identity."/>
  <jurisdiction>
    <coding>
      <system value="urn:iso:std:iso:3166"/>
      <code value="US"/>
    </coding>
  </jurisdiction>
  <caseSensitive value="true"/>
  <content value="complete"/>
  <count value="9"/>
  <concept>
    <code value="IAL1"/>
    <display value="Identity Assurance Level 1"/>
  </concept>
  <concept>
    <code value="IAL2"/>
    <display value="Identity Assurance Level 2"/>
  </concept>
  <concept>
    <code value="IAL3"/>
    <display value="Identity Assurance Level 3"/>
  </concept>
  <concept>
    <code value="AAL1"/>
    <display value="Authenticator Assurance Level 1"/>
  </concept>
  <concept>
    <code value="AAL2"/>
    <display value="Authenticator Assurance Level 2"/>
  </concept>
  <concept>
    <code value="AAL3"/>
    <display value="Authenticator Assurance Level 3"/>
  </concept>
  <concept>
    <code value="FAL1"/>
    <display value="Federation Assurance Level 1"/>
  </concept>
  <concept>
    <code value="FAL2"/>
    <display value="Federation Assurance Level 2"/>
  </concept>
  <concept>
    <code value="FAL3"/>
    <display value="Federation Assurance Level 3"/>
  </concept>
</CodeSystem>