ICD-10 Code A48.8 – Other specified bacterial diseases (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A48.8 – Other specified bacterial diseases
What it is
This code identifies a bacterial disease that does not fit a more specific ICD-10 category. Use it when the organism or clinical syndrome is documented, but no better code is available.
Clinical signs
Clinical features vary; refer to documentation. Findings may include signs of localized or systemic infection, but the exact presentation depends on the organism and affected site.
When to use this code
Use A48.8 when the provider documents an unusual or otherwise specified bacterial infection and no more specific code applies. It may also fit cases where the diagnosis is confirmed, but the record does not support a narrower bacterial disease category. Check documentation for the exact organism and site.
Do not use for
Do not use this code if a more specific bacterial disease code is documented. Avoid it for viral, fungal, or parasitic infections, or when the condition is only suspected.
Coding tip
Look for the most specific organism- or syndrome-based code first; use A48.8 only when documentation supports a bacterial disease but not a more precise option.