Specific code icon 2017 ICD-10-CM Diagnosis Code G04.90

Encephalitis and encephalomyelitis, unspecified

    2016 2017 Billable/Specific Code

  • G04.90 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • This is the American ICD-10-CM version of G04.90. Other international versions of ICD-10 G04.90 may differ.
  • Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Information
  • Inflammation of cerebral ventricles.
Applicable To
  • Ventriculitis (cerebral) NOS
Approximate Synonyms
  • Acute hemorrhagic encephalomyelitis
  • Acute hemorrhagic leukoencephalitis
  • Encephalitis
  • Encephalomyelitis, hemorrhagic, acute
  • Meningoencephalitis
  • Meningomyelitis
  • Ventriculitis
  • Ventriculitis of the brain
ICD-10-CM G04.90 is grouped within Diagnostic Related Group(s) (MS-DRG v34.0):
  • 023 Craniotomy with major device implant or acute complex cns pdx with mcc or chemotherapy implant
  • 024 Craniotomy with major device implant or acute complex cns pdx without mcc
  • 025 Craniotomy and endovascular intracranial procedures with mcc
  • 026 Craniotomy and endovascular intracranial procedures with cc
  • 027 Craniotomy and endovascular intracranial procedures without cc/mcc
  • 097 Non-bacterial infection of nervous system except viral meningitis with mcc
  • 098 Non-bacterial infection of nervous system except viral meningitis with cc
  • 099 Non-bacterial infection of nervous system except viral meningitis without cc/mcc
  • 974 Hiv with major related condition with mcc
  • 975 Hiv with major related condition with cc
  • 976 Hiv with major related condition without cc/mcc

Convert ICD-10-CM G04.90 to ICD-9-CM

The following ICD-10-CM Index entries contain back-references to ICD-10-CM G04.90: