API:  http://id.who.int/icd/release/10/2019/F22
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2019/F22",
    "parent": [
        "http://id.who.int/icd/release/10/2019/F20-F29"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2019/F22.0",
        "http://id.who.int/icd/release/10/2019/F22.8",
        "http://id.who.int/icd/release/10/2019/F22.9"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2019/en#/F22",
    "code": "F22",
    "title": {
        "@language": "en",
        "@value": "Persistent delusional disorders"
    },
    "definition": {
        "@language": "en",
        "@value": "Includes a variety of disorders in which long-standing delusions constitute the only, or the most conspicuous, clinical characteristic and which cannot be classified as organic, schizophrenic or affective. Delusional disorders that have lasted for less than a few months should be classified, at least temporarily, under F23.-."
    },
    "classKind": "category"
}