Q21.22 TRANSITIONAL ATRIOVENTRICULAR SEPTAL DEFECT

Code Information

  • Diagnosis Code: Q21.22
  • Short Description: Transitional atrioventricular septal defect
  • Long Description: Transitional atrioventricular septal defect
  • Code Version: 2025 ICD-10-CM

The code Q21.22 is VALID for claim submission

Code Classification

Synonyms

  • Common atrioventricular-type ventricular septal defect
  • Congenital cleft of cardiac valve
  • Intermediate atrioventricular septal defect with atrial and ventricular components and separate atrioventricular valves
  • Ostium primum defect
  • Restrictive ventricular septal defect
  • Transitional atrioventricular septal defect

Diagnostic Related Group(s)

The code Q21.22 is grouped in the following Diagnostic Related Group(s) MS-DRG V43.0

  1. Cardiac Congenital And Valvular Disorders With Mcc (306)
  2. Cardiac Congenital And Valvular Disorders Without Mcc (307)

References to Index of Diseases and Injuries

The code Q21.22 has the following ICD-10-CM references to the Index of Diseases and Injuries

  • 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

Similar Codes

ICD-10 Code ICD-10 Description
Q21 Congenital malformations of cardiac septa
Q21.0 Ventricular septal defect
Q21.1 Atrial septal defect
Q21.10 Atrial septal defect, unspecified
Q21.11 Secundum atrial septal defect
Q21.12 Patent foramen ovale
Q21.13 Coronary sinus atrial septal defect
Q21.14 Superior sinus venosus atrial septal defect
Q21.15 Inferior sinus venosus atrial septal defect
Q21.16 Sinus venosus atrial septal defect, unspecified
Q21.19 Other specified atrial septal defect
Q21.2 Atrioventricular septal defect
Q21.20 Atrioventricular septal defect, unspecified as to partial or complete
Q21.21 Partial atrioventricular septal defect
Q21.23 Complete atrioventricular septal defect
Q21.3 Tetralogy of Fallot
Q21.4 Aortopulmonary septal defect
Q21.8 Other congenital malformations of cardiac septa
Q21.9 Congenital malformation of cardiac septum, unspecified
This page was last updated on: 10/1/2025
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