Enteroinvasive Escherichia coli infection

This code represents an infection of the gastrointestinal tract caused by enteroinvasive Escherichia coli (EIEC). EIEC invades and destroys the colonic mucosa, leading to a dysentery-like illness characterized by inflammation and bloody diarrhea. It is a specific type of bacterial gastroenteritis.

Use this code when documentation explicitly identifies an infection due to enteroinvasive E. coli. This typically occurs in cases of acute infectious colitis or bacterial dysentery where laboratory testing confirms the presence of EIEC. Supporting documentation should include microbiology reports or physician notes specifying the causative organism.

• Differentiate from other E. coli infections (e.g., enterotoxigenic, enterohemorrhagic) as each has a specific code.
• Ensure the documentation specifies "enteroinvasive" E. coli to avoid miscoding to a more general E. coli infection.
• Sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any associated symptoms like diarrhea or dehydration.