Includes:

  • noninfective inflammatory bowel disease

Excludes1

  • irritable bowel syndrome (K58.-)
  • megacolon (K59.3-)
  1. K52 Other and unspecified noninfective gastroenteritis and colitis

    1. K52.0 Gastroenteritis and colitis due to radiation

    2. K52.1 Toxic gastroenteritis and colitis

      Inclusion term(s):

      • Drug-induced gastroenteritis and colitis
    3. K52.2 Allergic and dietetic gastroenteritis and colitis

      Inclusion term(s):

      • Food hypersensitivity gastroenteritis or colitis
      1. K52.21 Food protein-induced enterocolitis syndrome

        Inclusion term(s):

        • FPIES
      2. K52.22 Food protein-induced enteropathy

      3. K52.29 Other allergic and dietetic gastroenteritis and colitis

        Inclusion term(s):

        • Food hypersensitivity gastroenteritis or colitis
        • Immediate gastrointestinal hypersensitivity
    4. K52.3 Indeterminate colitis

      Inclusion term(s):

      • Colonic inflammatory bowel disease unclassified (IBDU)
    5. K52.8 Other specified noninfective gastroenteritis and colitis

      1. K52.81 Eosinophilic gastritis or gastroenteritis

        Inclusion term(s):

        • Eosinophilic enteritis
      2. K52.82 Eosinophilic colitis

        Inclusion term(s):

        • Allergic proctocolitis
        • Food-induced eosinophilic proctocolitis
        • Food protein-induced proctocolitis
        • Milk protein-induced proctocolitis
      3. K52.83 Microscopic colitis

      4. K52.89 Other specified noninfective gastroenteritis and colitis

    6. K52.9 Noninfective gastroenteritis and colitis, unspecified

      Inclusion term(s):

      • Colitis NOS
      • Enteritis NOS
      • Gastroenteritis NOS
      • Ileitis NOS
      • Jejunitis NOS
      • Sigmoiditis NOS
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.