Reporting Of Ulcerative Colitis

Ulcerative colitis is a inflammatory bowel disease (IBD) - chronic condition of gastrointestinal tract, causing inflammation and ulcers in mucosa of the large intestine or colon and rectum. Patient with symptoms of ulcerative colitis should visit a physician for an evaluation.

The main symptoms of ulcerative colitis are abdominal pain and diarrhea with blood and mucus. Other symptoms are loss of appetite, tiredness, weight loss, anemia, low grade fever, dehydration or a constant urge to pass stools.

This condition affects people of all ages, mainly between the ages of 15 and 35. Chronic inflammation in large intestine may cause colonic dysplasia or colorectal cancer.

Types and Symptoms:

1. Ulcerative Proctitis: Mildest type and only rectum is affected and symptoms are rectal bleeding, rectal pain or inability to pass stools despite frequent urges.

2. Proctosigmoiditis: Rectum and sigmoid colon are affected and symptoms are bloody diarrhea, abdominal cramps or pain and a constant urge to pass stool.

3. Left-sided Colitis: Rectum and the left side of the sigmoid and descending colon is affected and symptoms are bloody diarrhea, abdominal cramping on the left side, or weight loss.

4. Pancolitis : Whole colon is affected and the symptoms are fatigue, weight loss, occasionally bloody diarrhea, abdominal pain and cramps.

5. Fulminant Colitis: Rare and life-threatening condition affecting whole colon with a risk of colon rupture and toxic megacolon. The symptoms are severe abdominal pain, diarrhea, dehydration and shock.

If left untreated, ulcerative colitis inflammation, lead to serious complications, and also cause physical and mental health issues like depression, arthritis, eye inflammation, or even liver and kidney damage.


Colonoscopy and flexible sigmoidoscopy are performed to diagnose ulcerative colitis.

ICD-10 Codes for Ulcerative Colitis:

  • K51 - Ulcerative colitis

  • K51.0 - Ulcerative (chronic) pancolitis

  • K51.00 - Ulcerative (chronic) pancolitis without complications

  • K51.01 - Ulcerative (chronic) pancolitis with complications

  • K51.011 - Ulcerative (chronic) pancolitis with rectal bleeding

  • K51.012 - Ulcerative (chronic) pancolitis with intestinal obstruction

  • K51.013 - Ulcerative (chronic) pancolitis with fistula

  • K51.014 - Ulcerative (chronic) pancolitis with abscess

  • K51.018 - Ulcerative (chronic) pancolitis with other complication

  • K51.019 - Ulcerative (chronic) pancolitis with unspecified complication

  • K51.2 Ulcerative (chronic) proctitis

  • K51.20 - Ulcerative (chronic) proctitis without complications

  • K51.21 - Ulcerative (chronic) proctitis with complications

  • K51.211 - Ulcerative (chronic) proctitis with rectal bleeding

  • K51.212 - Ulcerative (chronic) proctitis with intestinal obstruction

  • K51.213 - Ulcerative (chronic) proctitis with fistula

  • K51.214 - Ulcerative (chronic) proctitis with abscess

  • K51.218 - Ulcerative (chronic) proctitis with other complication

  • K51.219 - Ulcerative (chronic) proctitis with unspecified complications

  • K51.3 - Ulcerative (chronic) rectosigmoiditis

  • K51.30 - Ulcerative (chronic) rectosigmoiditis without complications

  • K51.31 - Ulcerative (chronic) rectosigmoiditis with complications

  • K51.311 - Ulcerative (chronic) rectosigmoiditis with rectal bleeding

  • K51.312 - Ulcerative (chronic) rectosigmoiditis with intestinal obstruction

  • K51.313 - Ulcerative (chronic) rectosigmoiditis with fistula

  • K51.314 - Ulcerative (chronic) rectosigmoiditis with abscess

  • K51.318 - Ulcerative (chronic) rectosigmoiditis with other complication

  • K51.319 - Ulcerative (chronic) rectosigmoiditis with unspecified complications

  • K51.4 Inflammatory polyps of colon

  • K51.40 - Inflammatory polyps of colon without complications

  • K51.41 - Inflammatory polyps of colon with complications

  • K51.411 - Inflammatory polyps of colon with rectal bleeding

  • K51.412 - Inflammatory polyps of colon with intestinal obstruction

  • K51.413 - Inflammatory polyps of colon with fistula

  • K51.414 - Inflammatory polyps of colon with abscess

  • K51.418 - Inflammatory polyps of colon with other complication

  • K51.419 - Inflammatory polyps of colon with unspecified complications

  • K51.5 Left sided colitis

  • K51.50- Left sided colitis without complications

  • K51.51 - Left sided colitis with complications

  • K51.511 - Left sided colitis with rectal bleeding

  • K51.512 - Left sided colitis with intestinal obstruction

  • K51.513 - Left sided colitis with fistula

  • K51.514 - Left sided colitis with abscess

  • K51.518 - Left sided colitis with other complication

  • K51.519 - Left sided colitis with unspecified complications

  • K51.8 Other ulcerative colitis

  • K51.80 - Other ulcerative colitis without complications

  • K51.81 - Other ulcerative colitis with complications

  • K51.811 - Other ulcerative colitis with rectal bleeding

  • K51.812 - Other ulcerative colitis with intestinal obstruction

  • K51.813 - Other ulcerative colitis with fistula

  • K51.814 - Other ulcerative colitis with abscess

  • K51.818 - Other ulcerative colitis with other complication

  • K51.819 - Other ulcerative colitis with unspecified complications

  • K51.9 Ulcerative colitis, unspecified

  • K51.90 - Ulcerative colitis, without complications

  • K51.91 - Ulcerative colitis, unspecified, with complications

  • K51.911 - Ulcerative colitis, unspecified with rectal bleeding

  • K51.912 - Ulcerative colitis, unspecified with intestinal obstruction

  • K51.913 - Ulcerative colitis, unspecified with fistula

  • K51.914 - Ulcerative colitis, unspecified with abscess

  • K51.918 - Ulcerative colitis, unspecified with other complication

  • K51.919 - Ulcerative colitis, unspecified with unspecified complications