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ICD-10 CM Code G04.90

G04.90 Encephalitis and encephalomyelitis, unspecified

Includes

acute ascending myelitis
meningoencephalitis
meningomyelitis

Inclusion Term

Ventriculitis (cerebral) NOS

Excludes Type 1

encephalopathy NOS (G93.40)

Excludes Type 2

acute transverse myelitis (G37.3-)
alcoholic encephalopathy (G31.2)
benign myalgic encephalomyelitis (G93.3)
multiple sclerosis (G35)
subacute necrotizing myelitis (G37.4)
toxic encephalitis (G92)
toxic encephalopathy (G92)

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