Enteritis due to Yersinia enterocolitica

This code represents an inflammatory condition of the small intestine caused by infection with the bacterium Yersinia enterocolitica. Patients typically present with symptoms such as diarrhea, abdominal pain, fever, and sometimes vomiting, which can mimic appendicitis.

Assign this code when documentation explicitly states a diagnosis of enteritis confirmed to be caused by Yersinia enterocolitica. This often follows laboratory confirmation, such as stool culture or PCR testing, identifying the pathogen.

• Do not use this code if the Yersinia infection is systemic or affects sites other than the intestine; refer to the Excludes1 note.
• Ensure the documentation specifies "enteritis" or an equivalent intestinal inflammation, not just Yersinia infection without site specificity.
• Consider sequencing this code as the primary diagnosis if it is the reason for the encounter.