API:  http://id.who.int/icd/release/10/2019/C80.0
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2019/C80.0",
    "parent": [
        "http://id.who.int/icd/release/10/2019/C80"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2019/en#/C80.0",
    "code": "C80.0",
    "title": {
        "@language": "en",
        "@value": "Malignant neoplasm, primary site unknown, so stated"
    },
    "inclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "Primary site unknown"
            }
        }
    ],
    "classKind": "category"
}
Title: Malignant neoplasm, primary site unknown, so stated
Code:  C80.0