MedCodeSearch
Current

G04 Encephalitis, myelitis and encephalomyelitis

Part of Chapter 6: Diseases of the nervous system , block Inflammatory diseases of the central nervous system (G00-G09) .

Official Notes

Includes

acute ascending myelitis

Includes

meningoencephalitis

Includes

meningomyelitis

Excludes1

encephalopathy NOS ( G93.40 )

Excludes2

acute transverse myelitis ( G37.3 )

Excludes2

alcoholic encephalopathy ( G31.2 )

Excludes2

multiple sclerosis ( G35- )

Excludes2

myalgic encephalomyelitis ( G93.32 )

Excludes2

subacute necrotizing myelitis ( G37.4 )

Excludes2

toxic encephalitis ( G92.8 )

Excludes2

toxic encephalopathy ( G92.8 )

Child Codes

Referenced By

Official notes on these codes cite G04.

FY 2027 effective October 1, 2026 · CDC NCHS and CMS