ICD-10 Code A08.8 – Other specified intestinal infections (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A08.8 – Other specified intestinal infections
What it is
A08.8 identifies intestinal infections that do not fit a more specific ICD-10 category. Use it for documented infectious enteritis or gastroenteritis when the organism or exact type is specified as “other.”
Clinical signs
Clinical features vary; refer to documentation. Typical intestinal infection findings may include diarrhea, abdominal pain, nausea, vomiting, or signs of dehydration, but the record should support an infectious cause.
When to use this code
Use A08.8 when the provider documents an intestinal infection that is clearly infectious but not classified elsewhere. It is appropriate when the chart names a specific “other” organism or infection type and no more specific code applies. Check documentation if the etiology is unclear.
Do not use for
Do not use this code for noninfectious diarrhea, food poisoning without an intestinal infection diagnosis, or infections with a more specific ICD-10 code. If the record names a different infectious agent, code that condition instead.
Coding tip
Confirm the provider’s exact wording and code the most specific intestinal infection documented, not just the symptom of diarrhea.