R90.82
ICD-10-CMThis code signifies the presence of white matter disease in the brain when the specific type or cause is not documented. White matter disease involves damage to the myelinated nerve fibers, which can disrupt communication between different brain regions and lead to various neurological symptoms. It represents a general finding of white matter abnormalities without further diagnostic specificity.
Use this code when imaging studies (e.g., MRI, CT scan) identify white matter lesions or changes, but the physician's documentation does not specify the underlying etiology (e.g., vascular, inflammatory, demyelinating). It is appropriate when the provider notes "white matter disease, unspecified" or similar language indicating a lack of definitive diagnosis for the white matter changes.
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