API:  http://id.who.int/icd/release/10/2019/M31
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2019/M31",
    "parent": [
        "http://id.who.int/icd/release/10/2019/M30-M36"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2019/M31.0",
        "http://id.who.int/icd/release/10/2019/M31.1",
        "http://id.who.int/icd/release/10/2019/M31.3",
        "http://id.who.int/icd/release/10/2019/M31.4",
        "http://id.who.int/icd/release/10/2019/M31.5",
        "http://id.who.int/icd/release/10/2019/M31.6",
        "http://id.who.int/icd/release/10/2019/M31.7",
        "http://id.who.int/icd/release/10/2019/M31.8",
        "http://id.who.int/icd/release/10/2019/M31.9"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2019/en#/M31",
    "code": "M31",
    "title": {
        "@language": "en",
        "@value": "Other necrotizing vasculopathies"
    },
    "classKind": "category"
}