API:  http://id.who.int/icd/release/10/2019/R21
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2019/R21",
    "parent": [
        "http://id.who.int/icd/release/10/2019/R20-R23"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2019/en#/R21",
    "code": "R21",
    "title": {
        "@language": "en",
        "@value": "Rash and other nonspecific skin eruption"
    },
    "classKind": "category"
}
Title: Rash and other nonspecific skin eruption
Code:  R21