K51.318
BillableUlcerative (chronic) rectosigmoiditis with other complication
HCC Category Mapping
V28HCC 81 — Ulcerative Colitis
0.000V24HCC 35 — Inflammatory Bowel Disease
0.289ESRDHCC 35 — Inflammatory Bowel Disease
0.000RxHCCHCC 67 — Inflammatory Bowel Disease
0.000What This Code Means
Chronic inflammation with ulcers in the rectum and sigmoid colon with other complications not covered by more specific codes.
Coding Tips
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
└K51Ulcerative colitis└K51.3Ulcerative (chronic) rectosigmoiditis└K51.31Ulcerative (chronic) rectosigmoiditis with complications└K51.318Ulcerative (chronic) rectosigmoiditis with other complication
└K51.318Ulcerative (chronic) rectosigmoiditis with other complication