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2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Infectious And Parasitic Diseases 001-139 > Arthropod-Borne Viral Diseases 060-066 > Mosquito-Borne Viral Encephalitis 062.* >

2008 ICD-9-CM Diagnosis 062.2

Eastern equine encephalitis

 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 Therefore, this code may be out of date.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 062.2 can be accessed here.

  • A form of arboviral encephalitis (primarily affecting equines) endemic to eastern regions of North America. The causative organism (ENCEPHALOMYELITIS VIRUS, EASTERN EQUINE) may be transmitted to humans via the bite of AEDES mosquitoes. Clinical manifestations include the acute onset of fever, HEADACHE, altered mentation, and SEIZURES followed by coma. The condition is fatal in up to 50% of cases. Recovery may be marked by residual neurologic deficits and EPILEPSY. (From Joynt, Clinical Neurology, 1996, Ch26, pp9-10)
  • 062.2 is a specific code that can be used to specify a diagnosis
  • 062.2 contains 4 index entries
  • View the ICD-9-CM Volume 1 062.* hierarchy

062.2 excludes:

  • Venezuelan equine encephalitis (066.2)


Index entries containing 062.2:

Encephalitis (bacterial) (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) 323.9
  • Eastern equine 062.2
  • equine (acute) (infectious) (viral) 062.9
    • eastern 062.2
  • viral, virus 049.9
    • arthropod-borne NEC 064
      • mosquito-borne 062.9
        • Eastern equine 062.2
Encephalomyelitis (chronic) (granulomatous) (hemorrhagic necrotizing, acute) (myalgic, benign) (see also Encephalitis) 323.9
  • equine (acute) (infectious) 062.9
    • eastern 062.2