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K51.813

Billable

Other ulcerative colitis with fistula

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

A form of ulcerative colitis affecting areas of the colon other than the left side, with an abnormal tunnel-like opening (fistula).

Coding Tips

  • Confirm documentation specifies fistula formation in association with the ulcerative colitis
  • Note fistula location if documented, as this provides additional clinical context

Clinical Significance

Other ulcerative colitis with fistula indicates fistula formation in a form of ulcerative colitis with an atypical anatomic distribution. The presence of fistula is unusual in ulcerative colitis and should prompt careful diagnostic reassessment to differentiate from Crohn disease, which more commonly presents with fistulizing complications.

Documentation Requirements

  • Confirmed ulcerative colitis with documented extent
  • Fistula type and location documented
  • Imaging confirmation of fistula
  • Provider statement attributing fistula to the colitis
  • Documentation of diagnostic reconsideration for Crohn disease
  • Surgical consultation and treatment plan

Commonly Confused Codes

Code Hierarchy

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