API:  http://id.who.int/icd/release/10/2019/O45
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2019/O45",
    "parent": [
        "http://id.who.int/icd/release/10/2019/O30-O48"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2019/O45.0",
        "http://id.who.int/icd/release/10/2019/O45.8",
        "http://id.who.int/icd/release/10/2019/O45.9"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2019/en#/O45",
    "code": "O45",
    "title": {
        "@language": "en",
        "@value": "Premature separation of placenta [abruptio placentae]"
    },
    "classKind": "category"
}