Q21.22 is a billable/specific and POA-exempt diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Transitional atrioventricular septal defect.
Inclusion term
Intermediate atrioventricular canal
Intermediate atrioventricular septal defect
Intermediate endocardial cushion defect
Ostium primum atrial septal defect (type I) with separate atrioventricular valves and a small or restrictive inlet VSD
Transitional atrioventricular canal
Transitional endocardial cushion defect
Versions
2025
No changes
2024
No changes
2023
New code