{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Indicator of the high quality or reliability of the statement from a Verifier to a Relying Party (RP) that contains identity information about a Subscriber. Assertions may also contain verified attributes.\\r\\n\\n                        Strongly resistant to man-in-the-middle attacks. \\\"Bearer\\\" assertions are not used.  \\\"Holder-of-key\\\" assertions may be used. RP maintains records of the assertions.  [Summary of the technical requirements specified in NIST SP 800-63 for the four levels of assurance defined by the December 2003, the Office of Management and Budget (OMB) issued Memorandum M-04-04, E-Authentication Guidance for Federal Agencies.]",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ObservationValue",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "LOAAS"
  } ],
  "codesystem" : "ec013d25-2aca-5859-85ca-8417fa535d67",
  "concept_id" : "87ffa9d2-d755-59a9-9f9f-0254e71e0a1f",
  "ancestors" : {
    "LOAAS" : 1,
    "LOAAS4" : 0,
    "SECTRSTOBV" : 3,
    "TRSTLOAOBV" : 2,
    "_SecurityObservationValue" : 4
  },
  "id" : "567c1bfd-d9c1-4c60-80af-cddf31dbe852",
  "code" : "LOAAS4",
  "display" : "high assertion level of assurance",
  "version" : "2018-08-12"
}