Atrial septal defect

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

Billable FY2016 to FY2022, and a category header from FY2023.

Submit one of these 8 more specific codes instead:

Q21.10 Atrial septal defect, unspecified
Q21.11 Secundum atrial septal defect
Q21.12 Patent foramen ovale
Q21.13 Coronary sinus atrial septal defect
Q21.14 Superior sinus venosus atrial septal defect
Q21.15 Inferior sinus venosus atrial septal defect
Q21.16 Sinus venosus atrial septal defect, unspecified
Q21.19 Other specified atrial septal defect

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2007 Added to the draft code set draft Atrial septal defect
FY2023 Stopped being billable

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from Q21 Congenital malformations of cardiac septa

Excludes1 - never coded here

acquired cardiac septal defect (I51.0)

Codes in the same group

Code	Description	Status
Q21.0	Ventricular septal defect	Valid
Q21.2	Atrioventricular septal defect	Not billable
Q21.3	Tetralogy of Fallot	Valid
Q21.4	Aortopulmonary septal defect	Valid
Q21.8	Other congenital malformations of cardiac septa	Valid
Q21.9	Congenital malformation of cardiac septum, unspecified	Valid