ICD-10 / XVII Congenital malformations, deformations and chromosomal abnormalities / Q20-Q28 Congenital malformations of the circulatory system / Q22 Congenital malformations of pulmonary and tricuspid valvesFrom parent levelsChapterXVIICongenital malformations, deformations and chromosomal abnormalitiesexc.OpenExclusionsinborn errors of metabolism (E70-E90)BlockQ20-Q28Congenital malformations of the circulatory systemOpenQ22CategoryBlock Q20-Q28Chapter XVIICongenital malformations of pulmonary and tricuspid valvesSubcategories