API:  http://id.who.int/icd/release/10/2016/XI
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    "code": "XI",
    "title": {
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        "@value": "Diseases of the digestive system"
    },
    "exclusion": [
        {
            "label": {
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                "@value": "certain conditions originating in the perinatal period"
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                "@value": "congenital malformations, deformations and chromosomal abnormalities"
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                "@value": "injury, poisoning and certain other consequences of external causes"
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            "label": {
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                "@value": "neoplasms"
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