API:  http://id.who.int/icd/release/10/2008/E52
{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2008/E52",
    "parent": [
        "http://id.who.int/icd/release/10/2008/E50-E64"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2008/en#/E52",
    "code": "E52",
    "title": {
        "@language": "en",
        "@value": "Niacin deficiency [pellagra]"
    },
    "inclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "Deficiency: niacin(-tryptophan)"
            }
        },
        {
            "label": {
                "@language": "en",
                "@value": "Deficiency: nicotinamide"
            }
        },
        {
            "label": {
                "@language": "en",
                "@value": "Pellagra (alcoholic)"
            }
        }
    ],
    "exclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "sequelae of niacin deficiency"
            }
        }
    ],
    "classKind": "category"
}
Title: Niacin deficiency [pellagra]
Code:  E52