Q20.9
Congenital malformation of cardiac chambers and connections, unspecified
Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 8 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 2 never code together
Instructional notes
No further instructional notes apply.
Index entries leading here 2
Alongside this code 8 same parent — Q20
Q20.0 Common arterial trunk Q20.1 Double outlet right ventricle Q20.2 Double outlet left ventricle Q20.3 Discordant ventriculoarterial connection Q20.4 Double inlet ventricle Q20.5 Discordant atrioventricular connection Q20.6 Isomerism of atrial appendages Q20.8 Oth congenital malform of cardiac chambers and connections
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.