API:  http://id.who.int/icd/release/10/2019/I15
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2019/I15",
    "parent": [
        "http://id.who.int/icd/release/10/2019/I10-I15"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2019/I15.0",
        "http://id.who.int/icd/release/10/2019/I15.1",
        "http://id.who.int/icd/release/10/2019/I15.2",
        "http://id.who.int/icd/release/10/2019/I15.8",
        "http://id.who.int/icd/release/10/2019/I15.9"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2019/en#/I15",
    "code": "I15",
    "title": {
        "@language": "en",
        "@value": "Secondary hypertension"
    },
    "exclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "involving vessels of: brain"
            }
        },
        {
            "label": {
                "@language": "en",
                "@value": "involving vessels of: eye"
            }
        }
    ],
    "classKind": "category"
}