{
  "id": 8103,
  "label": "osteoarthritis, toe",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0006631",
  "properties": {
    "xrefs": [
      "MEDGEN:592722",
      "UMLS:C0409929"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      }
    ],
    "definition": "Osteoarthritis of the foot generally affects the joint at the base of your big toe. It can cause your toe to: - become stiff over time, which can make it difficult and painful to walk – this is called hallux rigidus - become bent, which can lead to painful bunions (bony lumps at the base of your big toe) – this is called hallux valgus. Osteoarthritis of the mid-foot is also quite common, especially in older people, and may cause an obvious bony swelling (osteophyte) on the top of your mid-foot. Ankle osteoarthritis is least common and may cause your heel to move to an unusual angle."
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "id": 6899,
      "label": "osteoarthritis",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        7223
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:8398",
          "HP:0002758",
          "ICD10CM:M15-M19",
          "ICD10CM:M19",
          "ICD9:715.3",
          "MEDGEN:45244",
          "MESH:D010003",
          "NCIT:C3293",
          "SCTID:396275006",
          "UMLS:C0029408",
          "icd11.foundation:558562409"
        ],
        "synonyms": [
          "degenerative joint disease"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          }
        ],
        "definition": "A noninflammatory degenerative joint disease occurring chiefly in older persons, characterized by degeneration of the articular cartilage, hypertrophy of bone at the margins and changes in the synovial membrane. It is accompanied by pain and stiffness, particularly after prolonged activity."
      },
      "child_count": 5,
      "reference_id": "MONDO:0005178"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 6899,
      "label": "osteoarthritis"
    }
  ]
}