API:  http://id.who.int/icd/release/10/2019/M42
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2019/M42",
    "parent": [
        "http://id.who.int/icd/release/10/2019/M40-M43"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2019/M42.0",
        "http://id.who.int/icd/release/10/2019/M42.1",
        "http://id.who.int/icd/release/10/2019/M42.9"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2019/en#/M42",
    "code": "M42",
    "title": {
        "@language": "en",
        "@value": "Spinal osteochondrosis"
    },
    "exclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "postural kyphosis"
            }
        }
    ],
    "classKind": "category"
}