| A04 | Other bacterial intestinal infections | NON-BILLABLE CODE |
| A04.0 | Enteropathogenic Escherichia coli infection | BILLABLE CODE |
| A04.1 | Enterotoxigenic Escherichia coli infection | BILLABLE CODE |
| A04.2 | Enteroinvasive Escherichia coli infection | BILLABLE CODE |
| A04.3 | Enterohemorrhagic Escherichia coli infection | BILLABLE CODE |
| A04.4 | Other intestinal Escherichia coli infections | BILLABLE CODE |
| A04.5 | Campylobacter enteritis | BILLABLE CODE |
| A04.7 | Enterocolitis due to Clostridium difficile | NON-BILLABLE CODE |
| A04.71 | Enterocolitis due to Clostridium difficile, recurrent | BILLABLE CODE |
| A04.72 | Enterocolitis due to Clostridium difficile, not specified as recurrent | BILLABLE CODE |
| A04.8 | Other specified bacterial intestinal infections | BILLABLE CODE |
| A04.9 | Bacterial intestinal infection, unspecified | BILLABLE CODE |
