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Q20.6

Billable

Isomerism of atrial appendages

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

What This Code Means

A rare congenital condition where the small pouches (appendages) on both sides of the upper heart chambers have the same structure instead of being different.

Coding Tips

  • •This condition is often associated with complex congenital heart disease and heterotaxy syndromes
  • •Document any associated organ abnormalities (situs inversus, asplenia, polysplenia) that may require additional coding

Code Hierarchy

└Q20Congenital malformations of cardiac chambers and connections└Q20.6Isomerism of atrial appendages
└Q20.6Isomerism of atrial appendages

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