ICD-10 Code A02 – Other salmonella infections (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A02 – Other salmonella infections
What it is
A02 identifies salmonella infections that are not classified elsewhere. Use it for documented Salmonella infection when the record does not specify a more exact subtype or presentation.
Clinical signs
Clinical features vary; refer to documentation. Salmonella infection may present with gastrointestinal illness, fever, abdominal cramps, diarrhea, or systemic infection depending on the site involved.
When to use this code
Use A02 when the provider documents an other or unspecified salmonella infection and no more specific ICD-10-CM code applies. It is appropriate for confirmed Salmonella infection when the note lacks a narrower organism or clinical category.
Check documentation if the record mentions gastroenteritis, septicemia, or a specific Salmonella type, because another code may be more accurate. Code only what is clearly supported in the chart.
Do not use for
Do not use A02 for non-salmonella bacterial enteritis or for a more specific salmonella diagnosis already documented. Do not use it when the record supports a different infection code.
Coding tip
Look for the exact organism wording and whether the clinician specifies a more detailed salmonella diagnosis before assigning A02.