B26.1

What This Code Means

Mumps meningitis is an infection of the protective membranes surrounding the brain and spinal cord caused by the mumps virus. This is a complication that can occur during a mumps infection, causing inflammation of these protective layers.

Coding Tips

• •This code should only be used when mumps has specifically caused meningitis; verify documentation confirms both the mumps diagnosis and meningeal involvement
• •Do not use this code for meningitis from other causes; ensure the meningitis is directly attributable to mumps infection rather than a concurrent unrelated condition