ICD-10 Code A39.2 – Acute meningococcemia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A39.2 – Acute meningococcemia
What it is
A39.2 identifies acute meningococcemia, a bloodstream infection caused by Neisseria meningitidis. Use it when the record documents meningococcal septicemia without a more specific meningitis or other meningococcal manifestation.
Clinical signs
Typical findings include sudden fever, chills, toxic appearance, and signs of sepsis. Clinical features vary; refer to documentation for rash, hypotension, or other confirmed manifestations.
When to use this code
Use A39.2 when the provider clearly documents acute meningococcemia or meningococcal septicemia. It is appropriate when the infection is in the bloodstream and the note does not specify meningitis, chronic carrier state, or another meningococcal condition.
Do not use for
Do not assign this code for meningococcal meningitis, localized meningococcal infection, or carrier status. If the documentation is unclear about the site or type of infection, check documentation.
Coding tip
Code the documented meningococcal manifestation first and confirm whether sepsis or meningitis is separately stated.