Q21.21
BillablePartial atrioventricular septal defect
Q21.21 is the ICD-10-CM code for Partial atrioventricular septal defect. It is a billable, specific code valid for reimbursement.
Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities
Includes
- •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
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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