{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Indicator of the high digital quality or reliability of single and multi-token authentication. Requires token that is a hardware cryptographic module validated at validated at Federal Information Processing Standard (FIPS) 140-2 Level 2 or higher overall with at least FIPS 140-2 Level 3 physical security. Level 4 token requirements can be met by using the PIV authentication key of a FIPS 201 compliant Personal Identity Verification (PIV) Card.  [Electronic Authentication Guideline - Recommendations of the National Institute of Standards and Technology, NIST Special Publication 800-63-1, Dec 2011]",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ObservationValue",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "LOATK"
  } ],
  "codesystem" : "ec013d25-2aca-5859-85ca-8417fa535d67",
  "concept_id" : "1943e69d-f96d-54c5-8cd3-240cb4ba47ae",
  "ancestors" : {
    "LOATK" : 1,
    "LOATK4" : 0,
    "SECTRSTOBV" : 3,
    "TRSTLOAOBV" : 2,
    "_SecurityObservationValue" : 4
  },
  "id" : "9b5c108a-39d2-4ebd-903c-06caf43814cc",
  "code" : "LOATK4",
  "display" : "high token level of assurance",
  "version" : "2018-08-12"
}