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K38.3

Billable

Fistula of appendix

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

What This Code Means

An abnormal tunnel or opening has formed in the appendix, usually connecting to another organ or the skin surface. This allows drainage or communication between the appendix and other structures.

Coding Tips

  • •Specify the location and what structure the fistula connects to if documented
  • •Determine if the fistula is causing infection or other complications requiring additional codes

Code Hierarchy

└K38Other diseases of appendix└K38.3Fistula of appendix
└K38.3Fistula of appendix

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