description: The assuranceLevel element carries various types of Assurance level. May be an Identity Assurance (IAL), an Authentication Assurance Level (AAL), a Federation Assurance Level (FAL), or other. \n\nIn SAML this is [defined to be carried](https://docs.oasis-open.org/security/saml/v2.0/saml-authn-context-2.0-os.pdf) in the `saml:AuthnContextClassRef`, but may be carried elsewhere based on the use-case and profiling of SAML.\n\nThe Vocabulary is not defined here. Some sources of vocabulary:\n- HL7 v3 [Security Trust Assurance ValueSet](https://terminology.hl7.org/3.0.0/ValueSet-v3-SecurityTrustAssuranceObservationValue.html). These include ISO-7498-2, NIST 800-63-1, and NIST-800-63-2.\n- [idmanagement.gov](https://developers.login.gov/saml/#specifying-attributes-and-assurance-levels) published on login.gov\n  - this is defined to be carried in the saml:AuthnContextClassRef\n- OASIS [Authentication Context for SAML](https://docs.oasis-open.org/security/saml/v2.0/saml-authn-context-2.0-os.pdf)\n- An example of a customized and purpose defined small set of codes can be found in the HL7 [SMART Health Cards](http://hl7.org/fhir/uv/shc-vaccination/2021Sep/) defines a [valueset](http://hl7.org/fhir/uv/shc-vaccination/ValueSet/identity-assurance-level)
package_name: ihe.iti.balp
derivation: constraint
name: AssuranceLevel
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'https://profiles.ihe.net/ITI/BALP/StructureDefinition/ihe-assuranceLevel'}
    index: 1
  value:
    choices: [valueCodeableConcept]
    index: 3
  valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 4}
package_version: 1.1.4
extensions: {}
class: extension
kind: complex-type
url: https://profiles.ihe.net/ITI/BALP/StructureDefinition/ihe-assuranceLevel
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 1.1.4
required: [value, valueCodeableConcept]