Other infectious mononucleosis with meningitis

This code signifies an atypical presentation of infectious mononucleosis where the patient also develops inflammation of the membranes surrounding the brain and spinal cord. It indicates a systemic Epstein-Barr virus (EBV) infection complicated by central nervous system involvement.

Apply this code when documentation confirms a diagnosis of infectious mononucleosis and explicitly states the presence of meningitis. This typically requires a physician's diagnostic statement linking the two conditions.

• Ensure the documentation clearly specifies "other" infectious mononucleosis, not a specific type like glandular or febrile.
• Verify that meningitis is explicitly diagnosed and not just suspected or ruled out.
• Do not use this code if the meningitis is due to a different infectious agent or is non-infectious.