ICD-10 Code A40.8 – Other streptococcal sepsis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A40.8 – Other streptococcal sepsis
What it is
A40.8 identifies sepsis caused by streptococcal species that are not assigned a more specific streptococcal sepsis code. Use it when the record documents streptococcal sepsis, but the exact group is not otherwise specified.
Clinical signs
Clinical features vary; refer to documentation. Sepsis may present with acute infection plus systemic illness such as fever, chills, altered mental status, hypotension, or organ dysfunction, with a documented streptococcal source or organism.
When to use this code
Use A40.8 when the provider documents sepsis due to streptococcus and the organism is not one of the more specific streptococcal categories. It also fits when the chart states “other streptococcal sepsis” or gives a non-specified streptococcal species.
Check documentation for the organism name and the presence of sepsis, not just bacteremia or localized infection. If the record identifies a different streptococcal type with a dedicated code, do not default to A40.8.
Do not use for
Do not use this code for streptococcal infection without sepsis, or when the record only supports bacteremia, colonization, or a localized infection. Check documentation if the organism is more specifically identified.
Coding tip
Code A40.8 only when sepsis is documented and the streptococcal type is not captured by a more specific ICD-10 code.