G04 ENCEPHALITIS, MYELITIS AND ENCEPHALOMYELITIS

Code Information

  • Diagnosis Code: G04
  • Short Description: Encephalitis, myelitis and encephalomyelitis
  • Long Description: Encephalitis, myelitis and encephalomyelitis
  • Code Version: 2025 ICD-10-CM

The code G04 is NOT VALID for claim submission

Code Classification

References to Index of Diseases and Injuries

The code G04 has the following ICD-10-CM references to the Index of Diseases and Injuries

  • Includes Notes:
    • acute ascending myelitis
    • meningoencephalitis
    • meningomyelitis
  • Type 1 Excludes Notes:
    • encephalopathy NOS (@G93.40*)
  • Type 2 Excludes Notes:
    • acute transverse myelitis (@G37.3*)
    • alcoholic encephalopathy (@G31.2*)
    • multiple sclerosis (@G35*)
    • myalgic encephalomyelitis (@G93.32*)
    • subacute necrotizing myelitis (@G37.4*)
    • toxic encephalitis (@G92.8*)
    • toxic encephalopathy (@G92.8*)

Similar Codes

ICD-10 Code ICD-10 Description
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
G04.90 Encephalitis and encephalomyelitis, unspecified
G04.91 Myelitis, unspecified
This page was last updated on: 10/1/2024
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