{
  "id": 18129,
  "label": "congenital achiasma",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0017929",
  "properties": {
    "xrefs": [
      "GARD:0021438",
      "MEDGEN:1392790",
      "Orphanet:324353",
      "SCTID:734031008",
      "UMLS:C4518345"
    ],
    "categories": [
      {
        "ref": "MONDO:0005071",
        "name": "nervous system disorder"
      }
    ],
    "definition": "Congenital achiasma is a rare, genetic, non-syndromic cranial nerve and nuclear aplasia malformation characterized by the congenital absence of the optic chiasm, resulting from the failure of the optic nerve fibers to cross over and decussate to the contralateral hemisphere, leading to decreased vision, strabismus and congenital nystagmus in infancy."
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "id": 4427,
      "label": "congenital nervous system disorder",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        6799
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:2490",
          "ICD9:742",
          "MEDGEN:105425",
          "NCIT:C97172",
          "UMLS:C0497552"
        ],
        "synonyms": [
          "congenital abnormality of the nervous system",
          "congenital nervous system disorder"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "An abnormality of the nervous system that is present at birth or detected in the neonatal period."
      },
      "child_count": 217,
      "reference_id": "MONDO:0002320"
    },
    {
      "id": 20383,
      "label": "disorder of development or morphogenesis",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        29380
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "ICD10CM:Q00-Q99",
          "MEDGEN:1843482",
          "UMLS:C0694457"
        ],
        "definition": "Any disease or disorder that disrupts the process development of an anatomical structure. Can be due to genetic or environmental causes. Typically happens during embryogenesis, but also includes post-embryonic development."
      },
      "child_count": 190,
      "reference_id": "MONDO:0021147"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 4427,
      "label": "congenital nervous system disorder"
    },
    {
      "id": 20383,
      "label": "disorder of development or morphogenesis"
    }
  ]
}