API:  http://id.who.int/icd/release/10/2008/R78
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2008/R78",
    "parent": [
        "http://id.who.int/icd/release/10/2008/R70-R79"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2008/R78.0",
        "http://id.who.int/icd/release/10/2008/R78.1",
        "http://id.who.int/icd/release/10/2008/R78.2",
        "http://id.who.int/icd/release/10/2008/R78.3",
        "http://id.who.int/icd/release/10/2008/R78.4",
        "http://id.who.int/icd/release/10/2008/R78.5",
        "http://id.who.int/icd/release/10/2008/R78.6",
        "http://id.who.int/icd/release/10/2008/R78.7",
        "http://id.who.int/icd/release/10/2008/R78.8",
        "http://id.who.int/icd/release/10/2008/R78.9"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2008/en#/R78",
    "code": "R78",
    "title": {
        "@language": "en",
        "@value": "Findings of drugs and other substances, not normally found in blood"
    },
    "exclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "mental and behavioural disorders due to psychoactive substance use"
            }
        }
    ],
    "classKind": "category"
}