Noninfective enteritis and colitis (K50-K52)

Browse all the diagnosis codes used for noninfective enteritis and colitis (k50-k52). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Instructional Notations

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

  • noninfective inflammatory bowel disease

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • irritable bowel syndrome K58
  • megacolon K59.3
  • Diseases of the digestive system (K00–K95)

    • Noninfective enteritis and colitis (K50-K52)

        • Crohn's disease [regional enteritis] (K50)

        • K50 Crohn's disease [regional enteritis]
        • K50.0 Crohn's disease of small intestine
        • K50.00 Crohn's disease of small intestine without complications
        • K50.01 Crohn's disease of small intestine with complications
        • K50.011 Crohn's disease of small intestine with rectal bleeding
        • K50.012 Crohn's disease of small intestine with intestinal obstruction
        • K50.013 Crohn's disease of small intestine with fistula
        • K50.014 Crohn's disease of small intestine with abscess
        • K50.018 Crohn's disease of small intestine with other complication
        • K50.019 Crohn's disease of small intestine with unspecified complications
        • K50.1 Crohn's disease of large intestine
        • K50.10 Crohn's disease of large intestine without complications
        • K50.11 Crohn's disease of large intestine with complications
        • K50.111 Crohn's disease of large intestine with rectal bleeding
        • K50.112 Crohn's disease of large intestine with intestinal obstruction
        • K50.113 Crohn's disease of large intestine with fistula
        • K50.114 Crohn's disease of large intestine with abscess
        • K50.118 Crohn's disease of large intestine with other complication
        • K50.119 Crohn's disease of large intestine with unspecified complications
        • K50.8 Crohn's disease of both small and large intestine
        • K50.80 Crohn's disease of both small and large intestine without complications
        • K50.81 Crohn's disease of both small and large intestine with complications
        • K50.811 Crohn's disease of both small and large intestine with rectal bleeding
        • K50.812 Crohn's disease of both small and large intestine with intestinal obstruction
        • K50.813 Crohn's disease of both small and large intestine with fistula
        • K50.814 Crohn's disease of both small and large intestine with abscess
        • K50.818 Crohn's disease of both small and large intestine with other complication
        • K50.819 Crohn's disease of both small and large intestine with unspecified complications
        • K50.9 Crohn's disease, unspecified
        • K50.90 Crohn's disease, unspecified, without complications
        • K50.91 Crohn's disease, unspecified, with complications
        • K50.911 Crohn's disease, unspecified, with rectal bleeding
        • K50.912 Crohn's disease, unspecified, with intestinal obstruction
        • K50.913 Crohn's disease, unspecified, with fistula
        • K50.914 Crohn's disease, unspecified, with abscess
        • K50.918 Crohn's disease, unspecified, with other complication
        • K50.919 Crohn's disease, unspecified, with unspecified complications
        • Ulcerative colitis (K51)

        • 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 complications
        • 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, unspecified, 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
        • Other and unspecified noninfective gastroenteritis and colitis (K52)

        • K52 Other and unspecified noninfective gastroenteritis and colitis
        • K52.0 Gastroenteritis and colitis due to radiation
        • K52.1 Toxic gastroenteritis and colitis
        • K52.2 Allergic and dietetic gastroenteritis and colitis
        • K52.21 Food protein-induced enterocolitis syndrome
        • K52.22 Food protein-induced enteropathy
        • K52.29 Other allergic and dietetic gastroenteritis and colitis
        • K52.3 Indeterminate colitis
        • K52.8 Other specified noninfective gastroenteritis and colitis
        • K52.81 Eosinophilic gastritis or gastroenteritis
        • K52.82 Eosinophilic colitis
        • K52.83 Microscopic colitis
        • K52.831 Collagenous colitis
        • K52.832 Lymphocytic colitis
        • K52.838 Other microscopic colitis
        • K52.839 Microscopic colitis, unspecified
        • K52.89 Other specified noninfective gastroenteritis and colitis
        • K52.9 Noninfective gastroenteritis and colitis, unspecified