ICD-10 Code G02 – Meningitis in other infectious and parasitic diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G02 – Meningitis in other infectious and parasitic diseases classified elsewhere
What it is
G02 identifies meningitis caused by an infectious or parasitic disease that is classified elsewhere. Use it when the meningitis is a manifestation of another documented infection, not a primary meningitis code.
Clinical signs
Typical findings include headache, fever, neck stiffness, photophobia, and altered mental status. Clinical features vary; refer to documentation and the confirmed underlying infectious or parasitic cause.
When to use this code
Use G02 when the record clearly states meningitis due to another specified infectious or parasitic disease, such as an infection coded elsewhere. Pair it with the code for the underlying condition, following sequencing rules in the chart.
If the provider documents only suspected meningitis, or does not link it to an infectious or parasitic disease, check documentation before assigning this code. Make sure the causal condition is identified.
Do not use for
Do not use G02 for meningitis of noninfectious origin or for meningitis coded as a primary disease elsewhere. Do not use it when the chart does not document the specific underlying infection.
Coding tip
Always code the underlying infectious or parasitic disease first when documented, and use G02 only for the meningitis manifestation.