Other disorders of meninges, not elsewhere classified

This code signifies a range of non-specific or less common conditions affecting the meninges, the protective membranes surrounding the brain and spinal cord, that are not categorized under more specific ICD-10-CM codes. It encompasses various inflammatory, degenerative, or structural abnormalities of the dura mater, arachnoid mater, and pia mater when a more precise diagnosis is unavailable.

Use this code when documentation indicates a disorder of the meninges that doesn't fit into other specific categories, such as meningitis, meningioma, or meningeal hemorrhage. This may include conditions like chronic adhesive arachnoiditis, meningeal cysts without specific etiology, or other ill-defined meningeal pathologies. Documentation should clearly state a meningeal disorder and the absence of a more specific diagnostic code.

• Always review documentation thoroughly to ensure no more specific meningeal disorder code is applicable.
• Avoid using this code if the meningeal involvement is secondary to a primary condition that has its own specific code (e.g., meningeal carcinomatosis coded under the malignancy).
• Consider sequencing this code after a primary neurological condition if the meningeal disorder is a complication or associated finding.