{
  "id": 20382,
  "label": "headache disorder",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0021146",
  "properties": {
    "xrefs": [
      "EFO:0009550",
      "MEDGEN:140743",
      "MESH:D020773",
      "SCTID:230461009",
      "UMLS:C0393735"
    ],
    "synonyms": [
      "headache disorder",
      "cephalgia syndrome",
      "cephalgia syndromes",
      "chronic daily headache",
      "chronic daily headaches",
      "chronic headache",
      "chronic headaches",
      "daily headache, chronic",
      "daily headaches, chronic",
      "headache syndrome",
      "headache syndromes",
      "headache, chronic",
      "headache, chronic daily",
      "headache, intractable",
      "headaches, chronic",
      "headaches, chronic daily",
      "headaches, intractable",
      "intractable headache",
      "intractable headaches",
      "syndrome, headache"
    ],
    "categories": [
      {
        "ref": "MONDO:0005071",
        "name": "nervous system disorder"
      }
    ],
    "definition": "Various conditions with the symptom of headache. Headache disorders are classified into major groups, such as primary headache disorders (based on characteristics of their headache symptoms) and secondary headache disorders (based on their etiologies). (International Classification of Headache Disorders, 2nd ed. Cephalalgia 2004: suppl 1)"
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 4,
  "parents": [
    {
      "id": 24453,
      "label": "neurological pain disorder",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        6799
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "MEDGEN:602552",
          "UMLS:C0423704"
        ],
        "synonyms": [
          "neurologic pain syndrome",
          "neurological pain disease"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "A nervous system disorder that has pain as a major feature."
      },
      "child_count": 9,
      "reference_id": "MONDO:0700057"
    }
  ],
  "children": [
    {
      "id": 17523,
      "label": "hypnic headache",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        20382
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0010796",
          "HP:0012459",
          "ICD10CM:G44.81",
          "ICD9:339.81",
          "MEDGEN:156012",
          "MESH:D051270",
          "Orphanet:276429",
          "SCTID:122711000119109",
          "UMLS:C0752150",
          "icd11.foundation:468065426"
        ],
        "synonyms": [
          "hypnic headache",
          "hypnic headache (disease)"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "Conditions in which the primary symptom is headache and the headache cannot be attributed to any known causes."
      },
      "child_count": 2,
      "reference_id": "MONDO:0017181"
    },
    {
      "id": 17614,
      "label": "reversible cerebral vasoconstriction syndrome",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        20382
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0012768",
          "ICD9:437.8",
          "MEDGEN:811291",
          "Orphanet:284388",
          "SCTID:700467001",
          "UMLS:C3544214",
          "icd11.foundation:1474881372"
        ],
        "synonyms": [
          "RCVS"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "Reversible cerebral vasoconstriction syndrome (RCVS) is an infrequent cerebrovascular disorder characterized by severe headaches with or without focal neurological deficits or seizures, and a reversible segmental and multifocal vasoconstriction of cerebral arteries."
      },
      "child_count": 0,
      "reference_id": "MONDO:0017291"
    },
    {
      "id": 18622,
      "label": "spontaneous intracranial hypotension",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        20382
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0021854",
          "MEDGEN:155914",
          "NORD:1901",
          "Orphanet:443180",
          "UMLS:C0751731",
          "icd11.foundation:1304151002"
        ],
        "synonyms": [
          "spontaneous cerebrospinal fluid leak"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ]
      },
      "child_count": 0,
      "reference_id": "MONDO:0018624"
    },
    {
      "id": 21131,
      "label": "exertional headache",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        20382
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "MEDGEN:1780177",
          "UMLS:C2363911"
        ],
        "synonyms": [
          "primary Exertional headache",
          "primary headache associated with sexual activity"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ]
      },
      "child_count": 0,
      "reference_id": "MONDO:0023093"
    }
  ],
  "roots": [
    {
      "id": 24453,
      "label": "neurological pain disorder"
    }
  ]
}