ICD-10 Code A39.8 – Other meningococcal infections (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A39.8 – Other meningococcal infections
What it is
A39.8 identifies meningococcal infections not classified by other specific codes. Use it for documented Neisseria meningitidis infection when the site or presentation is not otherwise specified.
Clinical signs
Clinical features vary; refer to documentation. Meningococcal disease may present with fever, headache, stiff neck, rash, or signs of invasive infection, but the exact manifestation must be supported in the record.
When to use this code
Use A39.8 when the provider documents an “other” meningococcal infection and no more specific meningococcal code applies. It is appropriate when the infection is confirmed or strongly documented, but the site or type is not further defined. Check documentation if the note only says meningococcal exposure or carrier state.
Do not use for
Do not use this code for meningococcal meningitis, meningococcemia, or a specific localized meningococcal infection when a more precise code is available. Do not assign it for suspected infection without documentation support.
Coding tip
Code the most specific meningococcal diagnosis documented, and use A39.8 only when the record clearly supports an unspecified “other” meningococcal infection.