Q21.21 is a billable/specific and POA-exempt diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Partial atrioventricular septal defect.
Inclusion term
Incomplete atrioventricular canal
Incomplete atrioventricular septal defect
Incomplete endocardial cushion defect
Ostium primum atrial septal defect (type I) with separate atrioventricular valves
Partial atrioventricular canal
Partial endocardial cushion defect
Versions
2025
No changes
2024
No changes
2023
New code