Q21.22

Transitional atrioventricular septal defect

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 1 never code together

Q21code

Excludes1

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Instructional notes 9

Inclusion terms

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

Inclusion terms

Index entries leading here 2

Defect, defective Q89.9
- atrial septal Q21.10
  - ostium primum type (type I) Q21.20
    - with
      - separate atrioventricular valves Q21.21
        
        and small or restrictive inlet VSD Q21.22
- atrioventricular
  - septal
    - transitional Q21.22
    - intermediate Q21.22
- cushion, endocardial Q21.20
  - intermediate Q21.22
  - transitional Q21.22
Canal — see also condition
- atrioventricular Q21.20
  - transitional Q21.22
  - intermediate Q21.22

Alongside this code 3 same parent — Q21.2

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Present FY2024–FY2027.