A04: Other bacterial intestinal infections

Codes under A04 (Other bacterial intestinal infections). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
A04.0	Enteropathogenic Escherichia coli infection	✓
A04.1	Enterotoxigenic Escherichia coli infection	✓
A04.2	Enteroinvasive Escherichia coli infection	✓
A04.3	Enterohemorrhagic Escherichia coli infection	✓
A04.4	Other intestinal Escherichia coli infections	✓
A04.5	Campylobacter enteritis	✓
A04.6	Enteritis due to Yersinia enterocolitica	✓
A04.7	Enterocolitis due to Clostridium difficile	—
A04.8	Other specified bacterial intestinal infections	✓
A04.9	Bacterial intestinal infection, unspecified	✓
A04.71	Enterocolitis due to Clostridium difficile, recurrent	✓
A04.72	Enterocolitis due to Clostridium difficile, not specified as recurrent	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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