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Q21.10

Billable

Atrial septal defect, unspecified

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A hole in the wall between the two upper chambers of the heart, but the specific type has not been identified or documented.

Coding Tips

  • •This is an unspecified atrial septal defect code; attempt to obtain more specific documentation to assign Q21.11 or Q21.12 if applicable
  • •Review echocardiogram reports which typically specify the type of ASD

Code Hierarchy

└Q21Congenital malformations of cardiac septa└Q21.1Atrial septal defect└Q21.10Atrial septal defect, unspecified
└Q21.10Atrial septal defect, unspecified

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