{
  "id": 18459,
  "label": "idiopathic avascular necrosis",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0018380",
  "properties": {
    "xrefs": [
      "GARD:0021665",
      "MEDGEN:1805758",
      "Orphanet:399307",
      "UMLS:C1404767",
      "icd11.foundation:551598148"
    ],
    "synonyms": [
      "idiopathic AVN"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      }
    ]
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "id": 18458,
      "label": "primary avascular necrosis",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        18453
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0021664",
          "MEDGEN:1842421",
          "Orphanet:399302",
          "UMLS:C5680038"
        ],
        "synonyms": [
          "primary AVN"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          }
        ]
      },
      "child_count": 3,
      "reference_id": "MONDO:0018379"
    },
    {
      "id": 24405,
      "label": "idiopathic disease",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        29381
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "MEDGEN:548250",
          "UMLS:C0277553"
        ],
        "synonyms": [
          "idiopathic disorder"
        ],
        "definition": "A disease or disorder for which the cause is of uncertain or unknown."
      },
      "child_count": 79,
      "reference_id": "MONDO:0700007"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 18458,
      "label": "primary avascular necrosis"
    },
    {
      "id": 24405,
      "label": "idiopathic disease"
    }
  ]
}