ICD-10 Code A42.7 – Actinomycotic Sepsis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A42.7 – Actinomycotic sepsis
What it is
A42.7 identifies sepsis caused by Actinomyces infection. Use it when documentation shows systemic illness due to actinomycotic disease rather than a localized infection.
Clinical signs
Clinical features vary; refer to documentation. Sepsis may be described with fever, chills, hypotension, organ dysfunction, or severe systemic inflammatory illness linked to Actinomyces.
When to use this code
Use A42.7 when the provider documents actinomycotic sepsis, septicemia, or sepsis attributable to Actinomyces. It is appropriate when the record clearly links the bloodstream or systemic infection to actinomycosis. Check documentation if the organism or sepsis source is unclear.
Do not use for
Do not use this code for localized actinomycosis without sepsis. Also avoid it when sepsis is due to another organism or when the record only mentions suspected infection. Check documentation.
Coding tip
Confirm the provider’s wording ties sepsis specifically to Actinomyces before assigning A42.7.