A04 ICD-10-CM Code: Other bacterial intestinal infections
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
A04Other bacterial intestinal infections
ICD-10-CM diagnosis code · United States clinical modification
Where A04 sits
- 1
Chapter 1
Certain infectious and parasitic diseases (A00-B99)
- 2
Section
Intestinal infectious diseases (A00-A09)
- 3
Category A04
Other bacterial intestinal infections
- 4
Code A04
Other bacterial intestinal infections
Codes under A04
A04 is a non-billable category. Choose the child code that best matches the documented diagnosis.
A04.0Enteropathogenic Escherichia coli infectionA04.1Enterotoxigenic Escherichia coli infectionA04.2Enteroinvasive Escherichia coli infectionA04.3Enterohemorrhagic Escherichia coli infectionA04.4Other intestinal Escherichia coli infectionsA04.5Campylobacter enteritisA04.6Enteritis due to Yersinia enterocoliticaA04.7Enterocolitis due to Clostridium difficileA04.8Other specified bacterial intestinal infectionsA04.9Bacterial intestinal infection, unspecifiedNotes for this code
Inclusion terms
No inclusion terms are listed for A04.
Code first
No “code first” instruction is listed for A04.
Use additional code
No “use additional code” instruction is listed for A04.
Excludes1
Conditions that should not be reported together with this code.
- bacterial foodborne intoxications, NEC (A05.-)
- tuberculous enteritis (A18.32)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for A04.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code A04 mean?
A04 is the FY 2027 U.S. ICD-10-CM code for “Other bacterial intestinal infections.”
Is A04 a billable or specific ICD-10-CM code?
No. A04 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is A04 located in ICD-10-CM?
A04 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Intestinal infectious diseases (A00-A09) (A00–A09), under category A04, Other bacterial intestinal infections.
What coding notes are listed for A04?
No inclusion terms are listed for A04 in this reference record. No code-first instruction is listed. Excludes1 notes: bacterial foodborne intoxications, NEC (A05.-); tuberculous enteritis (A18.32). No Excludes2 note is listed.