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Q21.16

Billable

Sinus venosus 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 birth defect where there is an abnormal opening in the wall between the upper heart chambers in the sinus venosus area, but the specific location (superior or inferior) is not specified.

Coding Tips

  • •Use this code only when the sinus venosus ASD is documented but the specific location is not clearly identified
  • •Query the provider if documentation allows for more specific coding to Q21.14 or Q21.15

Code Hierarchy

└Q21Congenital malformations of cardiac septa└Q21.1Atrial septal defect└Q21.16Sinus venosus atrial septal defect, unspecified
└Q21.16Sinus venosus atrial septal defect, unspecified

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