G04.90 Encephalitis and encephalomyelitis, unspecified
Billable / valid for submission ICD10CM Release FY2026
Version history
| Release | Valid from | Valid to | Description | Billable |
|---|---|---|---|---|
| FY2026 | 2025-10-01 | current | Encephalitis and encephalomyelitis, unspecified | yes |
Related codes in G04
- G04 Encephalitis, myelitis and encephalomyelitis
- G04.0 Acute disseminated encephalitis and encephalomyelitis (ADEM)
- G04.00 Acute disseminated encephalitis and encephalomyelitis, unspecified
- G04.01 Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)
- G04.02 Postimmunization acute disseminated encephalitis, myelitis and encephalomyelitis
- G04.1 Tropical spastic paraplegia
- G04.2 Bacterial meningoencephalitis and meningomyelitis, not elsewhere classified
- G04.3 Acute necrotizing hemorrhagic encephalopathy
- G04.30 Acute necrotizing hemorrhagic encephalopathy, unspecified
- G04.31 Postinfectious acute necrotizing hemorrhagic encephalopathy
- G04.32 Postimmunization acute necrotizing hemorrhagic encephalopathy
- G04.39 Other acute necrotizing hemorrhagic encephalopathy
- G04.8 Other encephalitis, myelitis and encephalomyelitis
- G04.81 Other encephalitis and encephalomyelitis
- G04.82 Acute flaccid myelitis
- G04.89 Other myelitis
- G04.9 Encephalitis, myelitis and encephalomyelitis, unspecified
- G04.91 Myelitis, unspecified