API:  http://id.who.int/icd/release/10/2019/R25-R29
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    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2019/R25-R29",
    "parent": [
        "http://id.who.int/icd/release/10/2019/XVIII"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2019/R25",
        "http://id.who.int/icd/release/10/2019/R26",
        "http://id.who.int/icd/release/10/2019/R27",
        "http://id.who.int/icd/release/10/2019/R29"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2019/en#/R25-R29",
    "code": "R25-R29",
    "title": {
        "@language": "en",
        "@value": "Symptoms and signs involving the nervous and musculoskeletal systems"
    },
    "classKind": "block"
}