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K51.818

Billable

Other ulcerative colitis with other complication

HCC Category Mapping

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

What This Code Means

A form of ulcerative colitis affecting areas of the colon other than the left side, with complications other than bleeding, obstruction, fistula, or abscess.

Coding Tips

  • •Use this code when a complication is present but does not fit the more specific categories K51.811-K51.814
  • •Document the specific complication clearly to support medical necessity and clinical decision-making

Clinical Significance

Other ulcerative colitis with other complication captures a combination of atypical colitis extent with a non-standard complication. This double 'other' classification indicates an unusual presentation that requires careful documentation to support the coding specificity and clinical complexity.

Documentation Requirements

  • ✓Confirmed ulcerative colitis with documented extent
  • ✓Clear documentation of the specific complication
  • ✓Provider statement linking complication to the colitis
  • ✓Treatment plan for both the colitis and the complication
  • ✓Disease activity assessment

Commonly Confused Codes

K51.818 vs K51.811-K51.814 — Use specific complication codes when applicableK51.818 vs K51.819 — K51.819 is for unspecified complicationsK51.818 vs K51.80 — K51.80 is without complications

Code Hierarchy

└K51Ulcerative colitis└K51.8Other ulcerative colitis└K51.81Other ulcerative colitis with complications└K51.818Other ulcerative colitis with other complication
└K51.818Other ulcerative colitis with other complication

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