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ICD-10-CM category

Q20: Congenital malformations of cardiac chambers and connections

9 subcodes · 9 billable · Look up any code with the ICD-10 search

Codes under Q20 (Congenital malformations of cardiac chambers and connections). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

CodeDescriptionBillable
Q20.0Common arterial trunk✓
Q20.1Double outlet right ventricle✓
Q20.2Double outlet left ventricle✓
Q20.3Discordant ventriculoarterial connection✓
Q20.4Double inlet ventricle✓
Q20.5Discordant atrioventricular connection✓
Q20.6Isomerism of atrial appendages✓
Q20.8Other congenital malformations of cardiac chambers and connections✓
Q20.9Congenital malformation of cardiac chambers and connections, unspecified✓

More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees

Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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