| E721 | 아황산염산화효소결핍 | Sulfite oxidase deficiency |
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| E722 | 요소회로대사장애 | Disorders of urea cycle metabolism |
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| E722 | 아르지닌혈증 | Argininemia |
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| E722 | 아르지닌숙신산뇨 | Argininosuccinic aciduria |
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| E722 | 시트룰린혈증 | Citrullinaemia |
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| E722 | 고암모니아혈증 | Hyperammonaemia |
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| E723 | 라이신 및 하이드록시라이신 대사장애 | Disorders of lysine and hydroxylysine metabolism |
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| E723 | 글루타르산뇨 | Glutaric aciduria |
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| E723 | 하이드록시라이신혈증 | Hydroxylysinaemia |
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| E723 | 고라이신혈증 | Hyperlysinaemia |
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| E724 | 오니틴대사장애 | Disorders of ornithine metabolism(E72.4) |
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| E724 | 오니틴혈증(Ⅰ,Ⅱ형) | Ornithinaemia( type Ⅰ,Ⅱ) |
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| E725 | 글라이신대사장애 | Disorders of glycine metabolism |
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| E725 | 고하이드록시프롤린혈증 | Hyperhydroxyprolinemia |
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| E725 | 고프롤린혈증(Ⅰ,Ⅱ형) | Hyperprolinemia (type Ⅰ,Ⅱ) |
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| E725 | 비케톤고글라이신혈증 | Non-ketotic hyperglycinemia |
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| E725 | 사르코신혈증 | Sarcosinemia |
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| E728 | 기타 명시된 아미노산대사장애 | Other specified disorders of amino-acid metabolism |
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| E728 | 베타아미노산대사장애 | Disorders of β-amino-acid metabolism |
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| E728 | 감마글루타밀 회로의 장애 | Disorders of γ-glutamyl cycle |
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