ICD-10 Code A39.89 – Other meningococcal infections (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A39.89 – Other meningococcal infections
What it is
This code identifies meningococcal disease caused by Neisseria meningitidis when the infection does not fit a more specific meningococcal category. Use it for documented “other” meningococcal infections.
Clinical signs
Clinical features vary; refer to documentation. Meningococcal infection may present with acute fever, systemic illness, or signs of invasive infection, depending on the site involved.
When to use this code
Use A39.89 when the provider documents an atypical or unspecified meningococcal infection that is not captured by a more specific A39 code. It may apply when the record clearly identifies meningococcal disease but does not name meningitis, septicemia, or another listed subtype. Check documentation for the exact infection site and wording.
Do not use for
Do not use this code if the record supports a more specific meningococcal diagnosis, such as meningitis or septicemia. Do not assign it when meningococcal infection is only suspected or when documentation is too vague; check documentation.
Coding tip
Code the most specific meningococcal diagnosis documented, and query if the site or type is unclear.