Q21 - Congenital malformations of cardiac septa Q21 - Congenital malformations of cardiac septa
Q21.0 - Ventricular septal defect Q21.1 - Atrial septal defect Q21.2 - Atrioventricular septal defect Q21.3 - Tetralogy of Fallot Q21.4 - Aortopulmonary septal defect Q21.8 - Other congenital malformations of cardiac septa Q21.9 - Congenital malformation of cardiac septum, unspecified