API:  http://id.who.int/icd/release/10/2019/S73
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2019/S73",
    "parent": [
        "http://id.who.int/icd/release/10/2019/S70-S79"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2019/S73.0",
        "http://id.who.int/icd/release/10/2019/S73.1"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2019/en#/S73",
    "code": "S73",
    "title": {
        "@language": "en",
        "@value": "Dislocation, sprain and strain of joint and ligaments of hip"
    },
    "classKind": "category"
}
Title: Dislocation, sprain and strain of joint and ligaments of hip
Code:  S73

Child

1.  http://id.who.int/icd/release/10/2019/S73.0
2.  http://id.who.int/icd/release/10/2019/S73.1