ICD-10 / XVII Congenital malformations, deformations and chromosomal abnormalities / Q20-Q28 Congenital malformations of the circulatory systemFrom parent levelsChapterXVIICongenital malformations, deformations and chromosomal abnormalitiesOpenExclusionsinborn errors of metabolism (E70-E90)Q20-Q28BlockChapter XVIICongenital malformations of the circulatory systemSubcategories