API:  http://id.who.int/icd/release/10/2008/K80
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2008/K80",
    "parent": [
        "http://id.who.int/icd/release/10/2008/K80-K87"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2008/K80.0",
        "http://id.who.int/icd/release/10/2008/K80.1",
        "http://id.who.int/icd/release/10/2008/K80.2",
        "http://id.who.int/icd/release/10/2008/K80.3",
        "http://id.who.int/icd/release/10/2008/K80.4",
        "http://id.who.int/icd/release/10/2008/K80.5",
        "http://id.who.int/icd/release/10/2008/K80.8"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2008/en#/K80",
    "code": "K80",
    "title": {
        "@language": "en",
        "@value": "Cholelithiasis"
    },
    "classKind": "category"
}