Q21.1 Non-Billable Code
Atrial septal defect
Effective From: 10/01/2016
Effective To: 09/30/2022
Chapter Classification
Chapter 17
Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0)
Section Detail
Q20-Q28
Congenital malformations of the circulatory system (Q20-Q28)
Code Hierarchy
This code is a child of Q21.
As a non-billable code, it requires more specific digits to be used on a medical claim.
As a non-billable code, it requires more specific digits to be used on a medical claim.
Coding Guidelines & Notes
excludes2
- ostium primum atrial septal defect (type I) (Q21.20)
More Specific Diagnosis Codes
This code is not billable as it requires a higher level of specificity. Select a more specific code below.
- Q21.10 - Atrial septal defect, unspecified Billable
- Q21.11 - Secundum atrial septal defect Billable
- Q21.12 - Patent foramen ovale Billable
- Q21.13 - Coronary sinus atrial septal defect Billable
- Q21.14 - Superior sinus venosus atrial septal defect Billable
- Q21.15 - Inferior sinus venosus atrial septal defect Billable
- Q21.16 - Sinus venosus atrial septal defect, unspecified Billable
- Q21.19 - Other specified atrial septal defect Billable
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