ICD-10-CM · Chapter 6
G04..0 Acute disseminated encephalitis and encephalomyelitis (ADEM)
Excludes 1 (cannot be coded together)
- acute necrotizing hemorrhagic encephalopathy (G04.3-)
- other noninfectious acute disseminated encephalomyelitis (noninfectious ADEM) (G04.81)
Last reviewed: September 2026