Search Browse Crosswalk Fees Tools Pricing

Codelle

AI-powered medical coding assistant for healthcare practices and billers.

Pricing Privacy Terms

© 2026 Codelle. All rights reserved.

CPT® copyright 2026 American Medical Association. All rights reserved. CPT is a registered trademark of the American Medical Association. Applicable FARS/DFARS restrictions apply to government use. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use.

ICD-10-CM G04.0 — Acute disseminated encephalitis… | Codelle

ICD-10-CM/G04/G04.0

G04.0

ICD-10-CM

Acute disseminated encephalitis and encephalomyelitis (ADEM)

Clinical Notes

Excludes 1 — Not coded here

acute necrotizing hemorrhagic encephalopathy (G04.3-)
other noninfectious acute disseminated encephalomyelitis (noninfectious ADEM) (G04.81)

Code Hierarchy

▲G04Encephalitis, myelitis and encephalomyelitis

G04.0(current)

Subcodes (3)

G04.00Acute disseminated encephalitis and encephalomyelitis, unsp

G04.01Postinfect acute dissem encephalitis and encephalomyelitis

G04.02Postimmun ac dissem encphlts, myelitis and encephalomyelitis

Same Category

G04Encephalitis, myelitis and encephalomyelitis G04.00Acute disseminated encephalitis and encephalomyelitis, unsp G04.01Postinfect acute dissem encephalitis and encephalomyelitis G04.02Postimmun ac dissem encphlts, myelitis and encephalomyelitis G04.1Tropical spastic paraplegia G04.2Bacterial meningoencephalitis and meningomyelitis, NEC G04.3Acute necrotizing hemorrhagic encephalopathy

G04.30

Acute necrotizing hemorrhagic encephalopathy, unspecified

G04.31Postinfectious acute necrotizing hemorrhagic encephalopathy

G04.32Postimmun acute necrotizing hemorrhagic encephalopathy

+5 more in this category