API:  http://id.who.int/icd/release/10/2019/I51
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2019/I51",
    "parent": [
        "http://id.who.int/icd/release/10/2019/I30-I52"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2019/I51.0",
        "http://id.who.int/icd/release/10/2019/I51.1",
        "http://id.who.int/icd/release/10/2019/I51.2",
        "http://id.who.int/icd/release/10/2019/I51.3",
        "http://id.who.int/icd/release/10/2019/I51.4",
        "http://id.who.int/icd/release/10/2019/I51.5",
        "http://id.who.int/icd/release/10/2019/I51.6",
        "http://id.who.int/icd/release/10/2019/I51.7",
        "http://id.who.int/icd/release/10/2019/I51.8",
        "http://id.who.int/icd/release/10/2019/I51.9"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2019/en#/I51",
    "code": "I51",
    "title": {
        "@language": "en",
        "@value": "Complications and ill-defined descriptions of heart disease"
    },
    "exclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "any condition in I51.4-I51.9 due to hypertension"
            }
        },
        {
            "label": {
                "@language": "en",
                "@value": "any condition in I51.4-I51.9 due to hypertension with renal disease"
            }
        },
        {
            "label": {
                "@language": "en",
                "@value": "complications following acute myocardial infarction"
            }
        },
        {
            "label": {
                "@language": "en",
                "@value": "when specified as rheumatic"
            }
        }
    ],
    "classKind": "category"
}