API:  http://id.who.int/icd/release/10/2019/N77
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2019/N77",
    "parent": [
        "http://id.who.int/icd/release/10/2019/N70-N77"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2019/N77.0",
        "http://id.who.int/icd/release/10/2019/N77.1",
        "http://id.who.int/icd/release/10/2019/N77.8"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2019/en#/N77",
    "code": "N77",
    "title": {
        "@language": "en",
        "@value": "Vulvovaginal ulceration and inflammation in diseases classified elsewhere"
    },
    "usage": "aster",
    "classKind": "category"
}
Title: Vulvovaginal ulceration and inflammation in diseases classified elsewhere
Code:  N77

Child

1.  http://id.who.int/icd/release/10/2019/N77.0
2.  http://id.who.int/icd/release/10/2019/N77.1
3.  http://id.who.int/icd/release/10/2019/N77.8