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Diagnosis Code

G04.01 POSTINFECT ACUTE DISSEM ENCEPHALITIS AND ENCEPHALOMYELITIS


Code Information

Diagnosis Code: G04.01

Short Description: Postinfect acute dissem encephalitis and encephalomyelitis

Long Description: Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)

The code G04.01 is VALID for claim submission

Code Classification:

  • Diseases of the nervous system (G00–G99)
    • Inflammatory diseases of the central nervous system (G00-G09)
      • Encephalitis, myelitis and encephalomyelitis (G04)
        • G04.01 Postinfect acute dissem encephalitis and encephalomyelitis

Code Version: 2022 ICD-10-CM


Synonyms

  • Acute disseminated encephalomyelitis
  • Acute disseminated encephalomyelitis following infectious disease
  • Bacterial ventriculitis
  • Demyelination of spinal cord
  • Infection due to Staphylococcus Coagulase negative
  • Infection due to Staphylococcus epidermidis
  • Infective ventriculitis
  • Post-infectious encephalitis
  • Post-infectious encephalomyelitis
  • Post-infective myelitis
  • Post-infective myelitis
  • Post-influenza encephalitis
  • Staphylococcus epidermidis ventriculitis
  • Ventriculitis of the brain

References to Index of Diseases and Injuries

The code G04.01 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Type 1 Excludes Notes:
    • post chickenpox encephalitis (@B01.1*)
    • post measles encephalitis (@B05.0*)
    • post measles myelitis (@B05.1*)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
G04.01 Right Arrow 323.61 Inf ac dis encephalomyel

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
G04 Encephalitis, myelitis and encephalomyelitis
G04.0 Acute disseminated encephalitis and encephalomyelitis (ADEM)
G04.00 Acute disseminated encephalitis and encephalomyelitis, unspecified
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: 10/1/2023

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