ICD-10 CM Code G04.01
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G04 Encephalitis, myelitis and encephalomyelitis
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G04.0 Acute disseminated encephalitis and encephalomyelitis (ADEM)
G04.01
Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)
Includes
- acute ascending myelitis
- meningoencephalitis
- meningomyelitis
Excludes Type 1
- post chickenpox encephalitis (B01.1)
- post measles encephalitis (B05.0)
- post measles myelitis (B05.1)
- acute necrotizing hemorrhagic encephalopathy (G04.3-)
- other noninfectious acute disseminated encephalomyelitis (noninfectious ADEM) (G04.81)
- 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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