Q21.15
BillableInferior sinus venosus atrial septal defect
Q21.15 is the ICD-10-CM code for Inferior sinus venosus atrial septal defect. It is a billable, specific code valid for reimbursement.
Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities
Includes
- •Inferior vena cava type atrial septal defect
Frequently asked questions
- What is ICD-10 code Q21.15?
- Q21.15 is the ICD-10-CM code for "Inferior sinus venosus atrial septal defect". It falls under Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities.
- Is Q21.15 a billable code?
- Yes — Q21.15 is a billable, specific ICD-10-CM code valid for reimbursement.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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