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K35.209

Billable

Acute appendicitis with generalized peritonitis, without abscess, unspecified as to perforation

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

What This Code Means

Acute inflammation of the appendix with infection spreading throughout the abdominal lining, but it is unclear whether the appendix has ruptured.

Coding Tips

  • Use this code only when generalized peritonitis is documented but perforation status cannot be determined from available records
  • Query the operative report or imaging studies to clarify perforation status for more precise coding

Code Hierarchy

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