K51.314
BillableUlcerative (chronic) rectosigmoiditis with abscess
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 a collection of pus (abscess) that has formed.
Coding Tips
- •Confirm abscess is documented and related to the ulcerative rectosigmoiditis
- •Note the location of the abscess if specified in the medical record
Clinical Significance
Ulcerative rectosigmoiditis with abscess indicates a localized pus collection complicating inflammation of the rectum and sigmoid colon. This infectious complication increases disease severity, requires targeted antibiotic therapy and likely drainage, and is associated with higher healthcare resource utilization and potential for systemic illness.
Documentation Requirements
- ✓Confirmed ulcerative colitis of the rectum and sigmoid colon
- ✓Imaging evidence of abscess with location and size documented
- ✓Provider statement linking abscess to the rectosigmoiditis
- ✓Treatment plan including antibiotics and drainage if indicated
- ✓Culture and sensitivity results if drainage was performed
- ✓Follow-up plan for abscess resolution monitoring
Commonly Confused Codes
K51.314 vs K61.x — K61 codes are for perianal/anorectal abscess not caused by inflammatory bowel diseaseK51.314 vs K63.0 — K63.0 is abscess of intestine not related to inflammatory bowel diseaseK51.314 vs K51.014 — K51.014 is pancolitis with abscess; rectosigmoiditis is more limitedK51.314 vs K51.313 — K51.313 is rectosigmoiditis with fistula, a different complication
Code Hierarchy
└K51Ulcerative colitis└K51.3Ulcerative (chronic) rectosigmoiditis└K51.31Ulcerative (chronic) rectosigmoiditis with complications└K51.314Ulcerative (chronic) rectosigmoiditis with abscess
└K51.314Ulcerative (chronic) rectosigmoiditis with abscess