A04.4

What This Code Means

This code describes infections caused by Escherichia coli (E. coli) bacteria in the intestines that don't fit into other specific E. coli infection categories. These infections typically cause gastrointestinal symptoms like diarrhea, abdominal cramping, and nausea.

Coding Tips

• •Verify the specific type of E. coli infection in the documentation; if it's enteroinvasive (EIEC), enterotoxigenic (ETEC), or enteroaggregative (EAEC), use the more specific subcodes (A04.0, A04.1, A04.3) instead of A04.4
• •Confirm the infection is limited to the intestinal tract; if there's systemic involvement or sepsis, additional codes may be needed to capture the full clinical picture