API:  http://id.who.int/icd/release/10/2008/K22
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2008/K22",
    "parent": [
        "http://id.who.int/icd/release/10/2008/K20-K31"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2008/K22.0",
        "http://id.who.int/icd/release/10/2008/K22.1",
        "http://id.who.int/icd/release/10/2008/K22.2",
        "http://id.who.int/icd/release/10/2008/K22.3",
        "http://id.who.int/icd/release/10/2008/K22.4",
        "http://id.who.int/icd/release/10/2008/K22.5",
        "http://id.who.int/icd/release/10/2008/K22.6",
        "http://id.who.int/icd/release/10/2008/K22.7",
        "http://id.who.int/icd/release/10/2008/K22.8",
        "http://id.who.int/icd/release/10/2008/K22.9"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2008/en#/K22",
    "code": "K22",
    "title": {
        "@language": "en",
        "@value": "Other diseases of oesophagus"
    },
    "exclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "oesophageal varices"
            }
        }
    ],
    "classKind": "category"
}