API:  http://id.who.int/icd/release/10/2016/O10
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2016/O10",
    "parent": [
        "http://id.who.int/icd/release/10/2016/O10-O16"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2016/O10.0",
        "http://id.who.int/icd/release/10/2016/O10.1",
        "http://id.who.int/icd/release/10/2016/O10.2",
        "http://id.who.int/icd/release/10/2016/O10.3",
        "http://id.who.int/icd/release/10/2016/O10.4",
        "http://id.who.int/icd/release/10/2016/O10.9"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2016/en#/O10",
    "code": "O10",
    "title": {
        "@language": "en",
        "@value": "Pre-existing hypertension complicating pregnancy, childbirth and the puerperium"
    },
    "inclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "the listed conditions with pre-existing proteinuria"
            }
        }
    ],
    "exclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "that with superimposed pre-eclampsia"
            }
        }
    ],
    "classKind": "category"
}