Additional Information
From parent codes: Q00-Q99 (Chapter 17)
More Specific Codes (8)
Q21.10Atrial septal defect, unspecified→Q21.11Secundum atrial septal defect→Q21.12Patent foramen ovale→Q21.13Coronary sinus atrial septal defect→Q21.14Superior sinus venosus atrial septal defect→Q21.15Inferior sinus venosus atrial septal defect→Q21.16Sinus venosus atrial septal defect, unspecified→Q21.19Other specified atrial septal defect→