API:  http://id.who.int/icd/release/10/2010/K31
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2010/K31",
    "parent": [
        "http://id.who.int/icd/release/10/2010/K20-K31"
    ],
    "child": [
        "http://id.who.int/icd/release/10/2010/K31.0",
        "http://id.who.int/icd/release/10/2010/K31.1",
        "http://id.who.int/icd/release/10/2010/K31.2",
        "http://id.who.int/icd/release/10/2010/K31.3",
        "http://id.who.int/icd/release/10/2010/K31.4",
        "http://id.who.int/icd/release/10/2010/K31.5",
        "http://id.who.int/icd/release/10/2010/K31.6",
        "http://id.who.int/icd/release/10/2010/K31.7",
        "http://id.who.int/icd/release/10/2010/K31.8",
        "http://id.who.int/icd/release/10/2010/K31.9"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2010/en#/K31",
    "code": "K31",
    "title": {
        "@language": "en",
        "@value": "Other diseases of stomach and duodenum"
    },
    "inclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "functional disorders of stomach"
            }
        }
    ],
    "exclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "diverticulum of duodenum"
            }
        },
        {
            "label": {
                "@language": "en",
                "@value": "gastrointestinal haemorrhage"
            }
        }
    ],
    "classKind": "category"
}