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K51.918

Billable

Ulcerative colitis, unspecified 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

Ulcerative colitis of unspecified extent with a complication other than bleeding, obstruction, fistula, or abscess.

Coding Tips

  • •Document the specific complication clearly (e.g., perforation, toxic megacolon, arthritis) to support medical necessity.
  • •This code should only be used when the complication doesn't fit the K51.911-K51.914 categories.

Clinical Significance

Ulcerative colitis, unspecified, with other complication captures a known non-standard complication of ulcerative colitis when the anatomic extent is undetermined. This code requires two levels of clarification: the disease extent and the specific complication details, making it important to query the provider for both data points.

Documentation Requirements

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

Commonly Confused Codes

K51.918 vs K51.911-K51.914 — Use specific complication codes for bleeding, obstruction, fistula, or abscessK51.918 vs K51.919 — K51.919 is for unspecified complications; K51.918 is when complication is known but non-standardK51.918 vs K51.90 — K51.90 is without complications

Code Hierarchy

└K51Ulcerative colitis└K51.9Ulcerative colitis, unspecified└K51.91Ulcerative colitis, unspecified, with complications└K51.918Ulcerative colitis, unspecified with other complication
└K51.918Ulcerative colitis, unspecified with other complication

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