ICD-10 Code A04.8 – Other specified bacterial intestinal infections (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A04.8 – Other specified bacterial intestinal infections
What it is
This code identifies a bacterial intestinal infection that does not fit a more specific ICD-10 category. Use it for documented bacterial enteric infections when the organism or syndrome is specified but no narrower code applies.
Clinical signs
Typical findings may include diarrhea, abdominal cramps, fever, nausea, or vomiting. Clinical features vary; refer to documentation and the identified bacterial cause when available.
When to use this code
Use A04.8 when the provider documents an intestinal infection due to a specific bacterium, but no dedicated code matches the organism or presentation. It is also appropriate when the record clearly states “other specified bacterial intestinal infection” and supports an infectious intestinal process.
Do not use for
Do not use this code for viral, parasitic, or noninfectious gastrointestinal disorders. If the chart names a more specific bacterial diagnosis with its own ICD-10 code, code that condition instead.
Coding tip
Check the organism name and the provider’s final diagnosis before assigning A04.8.