InnovaRx Innova Health Strategies
Pricing Sign in

Q21.4

Aortopulmonary septal defect

Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 1 never code together
Q21code
Excludes1
  • acquired cardiac septal defect (I51.0)I51.0

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

Instructional notes 2
Q21.4code
Inclusion terms
  • Aortic septal defect
  • Aortopulmonary window
Index entries leading here 7
  • Absence (of) (organ or part) (complete or partial)
    • septum
      • between aorta and pulmonary artery Q21.4
  • Agenesis
    • septum
      • between aorta and pulmonary artery Q21.4
  • Fenestration, fenestrated — see also Imperfect, closure
    • aortico-pulmonary Q21.4
  • Imperfect
    • closure (congenital)
      • septum
        • aorticopulmonary Q21.4
        • between aorta and pulmonary artery Q21.4
  • Window — see also Imperfect, closure
  • Defect, defective Q89.9
    • aorticopulmonary septum Q21.4
  • Communication
    • between
      • base of aorta and pulmonary artery Q21.4
Alongside this code 6 same parent — Q21
Q21.0 Ventricular septal defect Q21.1 Atrial septal defect category Q21.2 Atrioventricular septal defect category Q21.3 Tetralogy of Fallot Q21.8 Other congenital malformations of cardiac septa Q21.9 Congenital malformation of cardiac septum, unspecified
Additional references
AHA Coding Clinic® Licence required

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

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
Q21
Block
Q20-Q28
Siblings
6

Present FY2024–FY2027.