API:  http://id.who.int/icd/release/10/2019/K31.5
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2019/K31.5",
    "parent": [
        "http://id.who.int/icd/release/10/2019/K31"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2019/en#/K31.5",
    "code": "K31.5",
    "title": {
        "@language": "en",
        "@value": "Obstruction of duodenum"
    },
    "inclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "Constriction of duodenum"
            }
        },
        {
            "label": {
                "@language": "en",
                "@value": "Stenosis of duodenum"
            }
        },
        {
            "label": {
                "@language": "en",
                "@value": "Stricture of duodenum"
            }
        },
        {
            "label": {
                "@language": "en",
                "@value": "Duodenal ileus (chronic)"
            }
        }
    ],
    "exclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "congenital stenosis of duodenum"
            }
        }
    ],
    "classKind": "category"
}
Title: Obstruction of duodenum
Code:  K31.5