{
  "resourceType": "ValueSet",
  "status": "active",
  "name": "YesNoNullFlavor",
  "id": "YesNoNullFlavor",
  "title": "Ja, Nein, Nicht ermittelbar, Nicht erhoben Antworten",
  "description": "Werteliste mit Ja, Nein, nicht ermittelbar und nicht erhoben.",
  "url": "https://emiga.rki.de/fhir/ValueSet/YesNoNullFlavor",
  "language": "de-DE",
  "experimental": false,
  "publisher": "Robert Koch-Institut",
  "contact": [
    {
      "name": "Robert Koch-Institut",
      "telecom": [
        {
          "system": "url",
          "value": "https://rki.de"
        }
      ]
    }
  ],
  "version": "1.0.0",
  "date": "2025-02-03",
  "compose": {
    "include": [
      {
        "system": "http://snomed.info/sct",
        "concept": [
          {
            "code": "373066001",
            "display": "Yes"
          },
          {
            "code": "373067005",
            "display": "No"
          }
        ]
      },
      {
        "system": "http://terminology.hl7.org/ValueSet/v3-NullFlavor",
        "concept": [
          {
            "code": "ASKU",
            "display": "asked but unknown",
            "designation": [
              {
                "use": {
                  "code": "display",
                  "system": "http://terminology.hl7.org/CodeSystem/designation-usage"
                },
                "value": "nicht ermittelbar",
                "language": "de-DE"
              }
            ]
          },
          {
            "code": "NASK",
            "display": "not asked",
            "designation": [
              {
                "use": {
                  "code": "display",
                  "system": "http://terminology.hl7.org/CodeSystem/designation-usage"
                },
                "value": "nicht erhoben",
                "language": "de-DE"
              }
            ]
          }
        ]
      }
    ]
  }
}