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Q20-Q28
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Q21
Q21
Congenital malformations of cardiac septa
Q21.0
Ventricular septal defect
Billable
Notes
Q21.1
Atrial septal defect
Q21.2
Atrioventricular septal defect
Q21.3
Tetralogy of Fallot
Billable
Notes
Q21.4
Aortopulmonary septal defect
Billable
Notes
Q21.8
Other congenital malformations of cardiac septa
Billable
Notes
Q21.9
Congenital malformation of cardiac septum, unspecified
Billable
Notes