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2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Inflammatory Diseases Of The Central Nervous System 320-326 >

2008 ICD-9-CM Diagnosis 323

Encephalitis myelitis and encephalomyelitis

 On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date.

The 2009 version of ICD-9-CM 323 can be accessed here.

  • 323 is a non-specific code that cannot be used to specify a diagnosis

323 includes:

  • acute disseminated encephalomyelitis
  • meningoencephalitis, except bacterial
  • meningomyelitis, except bacterial
  • myelitis:
    • ascending
    • transverse

323 excludes:

  • acute transverse myelitis NOS (341.20)
  • acute transverse myelitis in conditions classified elsewhere (341.21)
  • bacterial:
  • idiopathic transverse myelitis (341.22)