API:  http://id.who.int/icd/release/10/2010/A00-A09
{
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    "@id": "http://id.who.int/icd/release/10/2010/A00-A09",
    "parent": [
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    ],
    "child": [
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        "http://id.who.int/icd/release/10/2010/A03",
        "http://id.who.int/icd/release/10/2010/A04",
        "http://id.who.int/icd/release/10/2010/A05",
        "http://id.who.int/icd/release/10/2010/A06",
        "http://id.who.int/icd/release/10/2010/A07",
        "http://id.who.int/icd/release/10/2010/A08",
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    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2010/en#/A00-A09",
    "code": "A00-A09",
    "title": {
        "@language": "en",
        "@value": "Intestinal infectious diseases"
    },
    "classKind": "block"
}