ICD-10 Code A41.3 – Sepsis due to Hemophilus influenzae (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A41.3 – Sepsis due to Hemophilus influenzae
What it is
This code identifies sepsis caused by Hemophilus influenzae infection. Use it when the record documents a systemic infection with this organism as the source.
Clinical signs
Clinical features may include fever, chills, rapid breathing, altered mental status, or signs of organ dysfunction. Clinical features vary; refer to documentation.
When to use this code
Use A41.3 when the provider documents sepsis due to Hemophilus influenzae or H. influenzae sepsis. You should link the systemic infection to this organism in the note. If the record only shows colonization, localized infection, or suspected infection without sepsis, check documentation.
Do not use for
Do not use this code for uncomplicated Hemophilus influenzae infections without sepsis. Also avoid it when the organism is not identified or when documentation supports a different source of sepsis.
Coding tip
Verify that sepsis and the causative organism are both clearly documented before assigning A41.3.