API:  http://id.who.int/icd/release/10/2008/M22
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2008/M22",
    "parent": [
        "http://id.who.int/icd/release/10/2008/M20-M25"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2008/M22.0",
        "http://id.who.int/icd/release/10/2008/M22.1",
        "http://id.who.int/icd/release/10/2008/M22.2",
        "http://id.who.int/icd/release/10/2008/M22.3",
        "http://id.who.int/icd/release/10/2008/M22.4",
        "http://id.who.int/icd/release/10/2008/M22.8",
        "http://id.who.int/icd/release/10/2008/M22.9"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2008/en#/M22",
    "code": "M22",
    "title": {
        "@language": "en",
        "@value": "Disorders of patella"
    },
    "exclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "dislocation of patella"
            }
        }
    ],
    "classKind": "category"
}