API:  http://id.who.int/icd/release/10/2008/O30-O48
{
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    "@id": "http://id.who.int/icd/release/10/2008/O30-O48",
    "parent": [
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    ],
    "child": [
        "http://id.who.int/icd/release/10/2008/O30",
        "http://id.who.int/icd/release/10/2008/O31",
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        "http://id.who.int/icd/release/10/2008/O34",
        "http://id.who.int/icd/release/10/2008/O35",
        "http://id.who.int/icd/release/10/2008/O36",
        "http://id.who.int/icd/release/10/2008/O40",
        "http://id.who.int/icd/release/10/2008/O41",
        "http://id.who.int/icd/release/10/2008/O42",
        "http://id.who.int/icd/release/10/2008/O43",
        "http://id.who.int/icd/release/10/2008/O44",
        "http://id.who.int/icd/release/10/2008/O45",
        "http://id.who.int/icd/release/10/2008/O46",
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    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2008/en#/O30-O48",
    "code": "O30-O48",
    "title": {
        "@language": "en",
        "@value": "Maternal care related to the fetus and amniotic cavity and possible delivery problems"
    },
    "classKind": "block"
}