{
  "id": 19740,
  "label": "secondary polycythemia",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0020115",
  "properties": {
    "xrefs": [
      "GARD:0019467",
      "ICD10CM:D75.1",
      "MEDGEN:231144",
      "MedDRA:10036062",
      "NCIT:C27178",
      "Orphanet:98428",
      "UMLS:C1318533"
    ],
    "synonyms": [
      "secondary erythrocytosis",
      "secondary polycythemia"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      },
      {
        "ref": "MONDO:0005046",
        "name": "immune system disorder"
      },
      {
        "ref": "MONDO:0005570",
        "name": "hematologic disorder"
      }
    ],
    "definition": "Secondary polycythemia is an elevated absolute red blood cell mass caused by enhanced stimulation of red blood cell production by an otherwise normal erythroid lineage that may be congenital or acquired (congenital secondary polycythemia and acquired secondary polycythemia)."
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 2,
  "parents": [
    {
      "id": 7218,
      "label": "polycythemia",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        5177
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:8432",
          "EFO:0005804",
          "HP:0001901",
          "MEDGEN:18552",
          "MESH:D011086",
          "MedDRA:10036051",
          "NCIT:C26863",
          "Orphanet:98427",
          "UMLS:C0032461"
        ],
        "synonyms": [
          "polycythemia",
          "polycythemia (disease)"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0005046",
            "name": "immune system disorder"
          },
          {
            "ref": "MONDO:0005570",
            "name": "hematologic disorder"
          }
        ],
        "definition": "Abnormally high mass or concentration of red blood cells in the blood, either due to an increase in erythropoiesis or a decrease in plasma volume."
      },
      "child_count": 5,
      "reference_id": "MONDO:0005571"
    }
  ],
  "children": [
    {
      "id": 17035,
      "label": "congenital secondary polycythemia",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        10564,
        19740
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0020635",
          "MEDGEN:1843354",
          "Orphanet:238536",
          "UMLS:C5679848"
        ],
        "synonyms": [
          "congenital secondary erythrocytosis"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0005046",
            "name": "immune system disorder"
          },
          {
            "ref": "MONDO:0005570",
            "name": "hematologic disorder"
          }
        ]
      },
      "child_count": 4,
      "reference_id": "MONDO:0016540"
    },
    {
      "id": 17036,
      "label": "acquired secondary polycythemia",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4524,
        19740
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0020636",
          "Orphanet:238547"
        ],
        "synonyms": [
          "acquired secondary erythrocytosis",
          "acquired secondary polycythemia"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0005046",
            "name": "immune system disorder"
          },
          {
            "ref": "MONDO:0005570",
            "name": "hematologic disorder"
          }
        ],
        "definition": "An instance of secondary polycythemia that is acquired during the lifetime of the individual."
      },
      "child_count": 8,
      "reference_id": "MONDO:0016541"
    }
  ],
  "roots": [
    {
      "id": 7218,
      "label": "polycythemia"
    }
  ]
}