Noninfective gastroenteritis and colitis, unspecified

This code represents inflammation of the stomach and intestines (gastroenteritis) and/or colon (colitis) that is not caused by an infectious agent. It signifies a general, unspecified form of noninfectious gastrointestinal inflammation when a more specific cause is unknown or not documented.

Use this code when documentation indicates gastroenteritis or colitis of noninfectious origin, but the specific etiology (e.g., allergic, toxic, radiation-induced) is not identified. This is appropriate for cases where the provider has ruled out infectious causes but has not determined another specific noninfectious cause.

• Avoid using this code if a more specific noninfectious cause (e.g., K52.2 for allergic gastroenteritis) is documented.
• Do not use this code if an infectious cause is suspected or confirmed; instead, refer to codes in chapter A00-A09.
• Review the "Excludes1" notes carefully to prevent incorrect co-coding with conditions like functional diarrhea or diarrhea NOS.