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K57.21

Billable

Diverticulitis of large intestine with perforation and abscess with bleeding

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

What This Code Means

Inflammation of small pouches in the large intestine with rupture, infected fluid collection, and bleeding.

Coding Tips

  • This represents the most severe large intestine diverticulitis; document perforation, abscess, and bleeding
  • May require surgical intervention; coordinate with operative reports if applicable

Code Hierarchy

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