Q21.20 is a billable/specific and POA-exempt diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Atrioventricular septal defect, unspecified as to partial or complete.
Inclusion term
Atrioventricular canal, NOS
Endocardial cushion defect NOS
Ostium primum atrial septal defect (type I) NOS
Versions
2025
No changes
2024
No changes
2023
New code