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K51.318

Billable

Ulcerative (chronic) rectosigmoiditis with other complication

HCC Category Mapping

V28HCC 81Ulcerative Colitis
0.000
V24HCC 35Inflammatory Bowel Disease
0.289
ESRDHCC 35Inflammatory Bowel Disease
0.000
RxHCCHCC 67Inflammatory Bowel Disease
0.000

What This Code Means

Chronic inflammation with ulcers in the rectum and sigmoid colon with other complications not covered by more specific codes.

Coding Tips

  • Use when complications exist but don't match K51.311, K51.312, K51.313, or K51.314
  • Document the specific complication clearly for accurate coding

Clinical Significance

Ulcerative rectosigmoiditis with other complication captures identified complications beyond bleeding, obstruction, fistula, and abscess. These may include extraintestinal manifestations, perforation, or toxic megacolon associated with the rectosigmoid inflammation, indicating significant disease complexity.

Documentation Requirements

  • Confirmed ulcerative colitis of the rectum and sigmoid colon
  • Clear documentation of the specific complication
  • Provider statement linking the complication to the rectosigmoiditis
  • Treatment plan for both the colitis and the complication
  • Disease severity and activity level assessment

Commonly Confused Codes

Code Hierarchy

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