API:  http://id.who.int/icd/release/10/2008/P81
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2008/P81",
    "parent": [
        "http://id.who.int/icd/release/10/2008/P80-P83"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2008/P81.0",
        "http://id.who.int/icd/release/10/2008/P81.8",
        "http://id.who.int/icd/release/10/2008/P81.9"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2008/en#/P81",
    "code": "P81",
    "title": {
        "@language": "en",
        "@value": "Other disturbances of temperature regulation of newborn"
    },
    "classKind": "category"
}