API:  http://id.who.int/icd/release/10/2010/C78
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2010/C78",
    "parent": [
        "http://id.who.int/icd/release/10/2010/C76-C80"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2010/C78.0",
        "http://id.who.int/icd/release/10/2010/C78.1",
        "http://id.who.int/icd/release/10/2010/C78.2",
        "http://id.who.int/icd/release/10/2010/C78.3",
        "http://id.who.int/icd/release/10/2010/C78.4",
        "http://id.who.int/icd/release/10/2010/C78.5",
        "http://id.who.int/icd/release/10/2010/C78.6",
        "http://id.who.int/icd/release/10/2010/C78.7",
        "http://id.who.int/icd/release/10/2010/C78.8"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2010/en#/C78",
    "code": "C78",
    "title": {
        "@language": "en",
        "@value": "Secondary malignant neoplasm of respiratory and digestive organs"
    },
    "classKind": "category"
}