ICD-10 Code A41.53 – Sepsis due to Serratia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A41.53 – Sepsis due to Serratia
What it is
A41.53 identifies sepsis caused by Serratia species. Use it when the record documents a systemic infection from Serratia, not just colonization or a localized infection.
Clinical signs
Clinical features vary; refer to documentation. Sepsis is typically documented with infection plus systemic illness, and the source organism is Serratia.
When to use this code
Use A41.53 when the provider states sepsis due to Serratia or documents Serratia as the causative organism for sepsis. Code the confirmed organism from the medical record, and add any documented organ dysfunction codes when present.
Do not use for
Do not use this code for Serratia infection without sepsis, such as a localized urinary or wound infection. Do not assign it if the record only says suspected infection; check documentation.
Coding tip
Verify that Serratia is the documented sepsis organism before assigning A41.53.