A04 Other bacterial intestinal infections

Category / Non-billable header 12 subcodes

Block: Intestinal infectious diseases (A00-A09)

Excludes 1 (cannot be coded together)

  • bacterial foodborne intoxications, NEC (A05.-)
  • tuberculous enteritis (A18.32)

Subcodes

Each subcode links to a detail page with full clinical annotations.

Code Description Billable
A04..0 Enteropathogenic Escherichia coli infection Yes
A04..1 Enterotoxigenic Escherichia coli infection Yes
A04..2 Enteroinvasive Escherichia coli infection Yes
A04..3 Enterohemorrhagic Escherichia coli infection Yes
A04..4 Other intestinal Escherichia coli infections Yes
A04..5 Campylobacter enteritis Yes
A04..6 Enteritis due to Yersinia enterocolitica Yes
A04..7 Enterocolitis due to Clostridium difficile No
A04..71 Enterocolitis due to Clostridium difficile, recurrent Yes
A04..72 Enterocolitis due to Clostridium difficile, not specified as recurrent Yes
A04..8 Other specified bacterial intestinal infections Yes
A04..9 Bacterial intestinal infection, unspecified Yes

Last reviewed: September 2026