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Q21.8

Billable

Other congenital malformations of cardiac septa

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

What This Code Means

A birth defect involving an abnormal opening or malformation in the walls that separate the heart chambers, not classified as a specific type.

Coding Tips

  • •Use this code only when the specific type of septal defect is documented but does not fit other Q21 categories
  • •Review documentation carefully to determine if a more specific code (Q21.0-Q21.4) applies

Code Also

  • , if applicable:
  • Eisenmenger's complex (I27.83)
  • Eisenmenger's syndrome (I27.83)

Code Hierarchy

└Q21Congenital malformations of cardiac septa└Q21.8Other congenital malformations of cardiac septa
└Q21.8Other congenital malformations of cardiac septa

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