K50-K52Not billable, use a more specific code below
Noninfective enteritis and colitis (K50-K52)
chapter 11: Diseases of the Digestive System
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Instructional notes
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
There are no chapter-specific rules for Chapter 11 yet, so the general rules in Section I.B apply.
All codes under K50-K52
K50-K52 can't be used on a claim. Pick a billable code below; grey headings group them.
- K50Crohn's disease [regional enteritis]
- K50.0Crohn's disease of small intestine
- K50.00Crohn's disease of small intestine without complications
- K50.01Crohn's disease of small intestine with complications
- K50.011Crohn's disease of small intestine with rectal bleeding
- K50.012Crohn's disease of small intestine with intestinal obstruction
- K50.013Crohn's disease of small intestine with fistula
- K50.014Crohn's disease of small intestine with abscess
- K50.018Crohn's disease of small intestine with other complication
- K50.019Crohn's disease of small intestine with unspecified complications
- K50.1Crohn's disease of large intestine
- K50.10Crohn's disease of large intestine without complications
- K50.11Crohn's disease of large intestine with complications
- K50.111Crohn's disease of large intestine with rectal bleeding
- K50.112Crohn's disease of large intestine with intestinal obstruction
- K50.113Crohn's disease of large intestine with fistula
- K50.114Crohn's disease of large intestine with abscess
- K50.118Crohn's disease of large intestine with other complication
- K50.119Crohn's disease of large intestine with unspecified complications
- K50.8Crohn's disease of both small and large intestine
- K50.80Crohn's disease of both small and large intestine without complications
- K50.81Crohn's disease of both small and large intestine with complications
- K50.811Crohn's disease of both small and large intestine with rectal bleeding
- K50.812Crohn's disease of both small and large intestine with intestinal obstruction
- K50.813Crohn's disease of both small and large intestine with fistula
- K50.814Crohn's disease of both small and large intestine with abscess
- K50.818Crohn's disease of both small and large intestine with other complication
- K50.819Crohn's disease of both small and large intestine with unspecified complications
- K50.9Crohn's disease, unspecified
- K50.90Crohn's disease, unspecified, without complications
- K50.91Crohn's disease, unspecified, with complications
- K50.911Crohn's disease, unspecified, with rectal bleeding
- K50.912Crohn's disease, unspecified, with intestinal obstruction
- K50.913Crohn's disease, unspecified, with fistula
- K50.914Crohn's disease, unspecified, with abscess
- K50.918Crohn's disease, unspecified, with other complication
- K50.919Crohn's disease, unspecified, with unspecified complications
- K51Ulcerative colitis
- K51.0Ulcerative (chronic) pancolitis
- K51.00Ulcerative (chronic) pancolitis without complications
- K51.01Ulcerative (chronic) pancolitis with complications
- K51.011Ulcerative (chronic) pancolitis with rectal bleeding
- K51.012Ulcerative (chronic) pancolitis with intestinal obstruction
- K51.013Ulcerative (chronic) pancolitis with fistula
- K51.014Ulcerative (chronic) pancolitis with abscess
- K51.018Ulcerative (chronic) pancolitis with other complication
- K51.019Ulcerative (chronic) pancolitis with unspecified complications
- K51.2Ulcerative (chronic) proctitis
- K51.20Ulcerative (chronic) proctitis without complications
- K51.21Ulcerative (chronic) proctitis with complications
- K51.211Ulcerative (chronic) proctitis with rectal bleeding
- K51.212Ulcerative (chronic) proctitis with intestinal obstruction
- K51.213Ulcerative (chronic) proctitis with fistula
- K51.214Ulcerative (chronic) proctitis with abscess
- K51.218Ulcerative (chronic) proctitis with other complication
- K51.219Ulcerative (chronic) proctitis with unspecified complications
- K51.3Ulcerative (chronic) rectosigmoiditis
- K51.30Ulcerative (chronic) rectosigmoiditis without complications
- K51.31Ulcerative (chronic) rectosigmoiditis with complications
- K51.311Ulcerative (chronic) rectosigmoiditis with rectal bleeding
- K51.312Ulcerative (chronic) rectosigmoiditis with intestinal obstruction
- K51.313Ulcerative (chronic) rectosigmoiditis with fistula
- K51.314Ulcerative (chronic) rectosigmoiditis with abscess
- K51.318Ulcerative (chronic) rectosigmoiditis with other complication
- K51.319Ulcerative (chronic) rectosigmoiditis with unspecified complications
- K51.4Inflammatory polyps of colon
- K51.40Inflammatory polyps of colon without complications
- K51.41Inflammatory polyps of colon with complications
- K51.411Inflammatory polyps of colon with rectal bleeding
- K51.412Inflammatory polyps of colon with intestinal obstruction
- K51.413Inflammatory polyps of colon with fistula
- K51.414Inflammatory polyps of colon with abscess
- K51.418Inflammatory polyps of colon with other complication
- K51.419Inflammatory polyps of colon with unspecified complications
- K51.5Left sided colitis
- K51.50Left sided colitis without complications
- K51.51Left sided colitis with complications
- K51.511Left sided colitis with rectal bleeding
- K51.512Left sided colitis with intestinal obstruction
- K51.513Left sided colitis with fistula
- K51.514Left sided colitis with abscess
- K51.518Left sided colitis with other complication
- K51.519Left sided colitis with unspecified complications
- K51.8Other ulcerative colitis
- K51.80Other ulcerative colitis without complications
- K51.81Other ulcerative colitis with complications
- K51.811Other ulcerative colitis with rectal bleeding
- K51.812Other ulcerative colitis with intestinal obstruction
- K51.813Other ulcerative colitis with fistula
- K51.814Other ulcerative colitis with abscess
- K51.818Other ulcerative colitis with other complication
- K51.819Other ulcerative colitis with unspecified complications
- K51.9Ulcerative colitis, unspecified
- K51.90Ulcerative colitis, unspecified, without complications
- K51.91Ulcerative colitis, unspecified, with complications
- K51.911Ulcerative colitis, unspecified with rectal bleeding
- K51.912Ulcerative colitis, unspecified with intestinal obstruction
- K51.913Ulcerative colitis, unspecified with fistula
- K51.914Ulcerative colitis, unspecified with abscess
- K51.918Ulcerative colitis, unspecified with other complication
- K51.919Ulcerative colitis, unspecified with unspecified complications
- K52Other and unspecified noninfective gastroenteritis and colitis
- K52.0Gastroenteritis and colitis due to radiation
- K52.1Toxic gastroenteritis and colitis
- K52.2Allergic and dietetic gastroenteritis and colitis
- K52.21Food protein-induced enterocolitis syndrome
- K52.22Food protein-induced enteropathy
- K52.29Other allergic and dietetic gastroenteritis and colitis
- K52.3Indeterminate colitis
- K52.8Other specified noninfective gastroenteritis and colitis
- K52.81Eosinophilic gastritis or gastroenteritis
- K52.82Eosinophilic colitis
- K52.83Microscopic colitis
- K52.831Collagenous colitis
- K52.832Lymphocytic colitis
- K52.838Other microscopic colitis
- K52.839Microscopic colitis, unspecified
- K52.89Other specified noninfective gastroenteritis and colitis
- K52.9Noninfective gastroenteritis and colitis, unspecified
K50-K52 MS-DRGs
This code does not group to an MS-DRG as a principal diagnosis.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Crohn's Disease
Crohn's disease is a chronic (long-lasting) disease that causes inflammation in your digestive tract. It can affect any part of your digestive tract, which runs from your mouth to your anus. But it usually affects your small intestine and the beginning of your large intestine.
Read more about crohn's disease on MedlinePlus