K51.812

Billable

Other ulcerative colitis with intestinal obstruction

HCC Category Mapping

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 blockage of the intestines.

Coding Tips

•Verify that obstruction is documented and related to the ulcerative colitis process
•Consider if obstruction is partial or complete, as this may affect clinical management documentation

Clinical Significance

Other ulcerative colitis with intestinal obstruction indicates a form of ulcerative colitis not fitting standard anatomic classifications that has developed bowel blockage. Intestinal obstruction significantly increases morbidity and typically requires hospitalization, potentially including surgical intervention.

Documentation Requirements

✓Confirmed ulcerative colitis diagnosis with non-standard anatomic extent
✓Imaging evidence of intestinal obstruction
✓Documentation of obstruction type (partial vs. complete)
✓Provider statement linking obstruction to the colitis
✓Treatment plan including conservative management or surgical consultation
✓Assessment for stricture formation vs. inflammatory cause

Commonly Confused Codes

K51.812 vs K56.69 — K56.69 is other intestinal obstruction unrelated to inflammatory bowel disease K51.812 vs K51.912 — K51.912 is unspecified ulcerative colitis with obstruction K51.812 vs K51.012/K51.312/K51.512 — Use anatomically specific codes when extent is documented

Code Hierarchy

└K51Ulcerative colitis └K51.8Other ulcerative colitis └K51.81Other ulcerative colitis with complications └K51.812Other ulcerative colitis with intestinal obstruction

└K51.812Other ulcerative colitis with intestinal obstruction