2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Infectious And Parasitic Diseases 001-139 > Arthropod-Borne Viral Diseases 060-066 >
 2007 ICD-9-CM Diagnosis 064
Viral encephalitis transmitted by other and unspecified arthropods 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 Therefore, this code may be out of date.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 064 can be accessed here. - Infections of the brain caused by arthropod-borne viruses (i.e., arboviruses) primarily from the families TOGAVIRIDAE; FLAVIVIRIDAE; BUNYAVIRIDAE; REOVIRIDAE; and RHABDOVIRIDAE. Life cycles of these viruses are characterized by ZOONOSES, with birds and lower mammals serving as intermediate hosts. The virus is transmitted to humans by the bite of mosquitoes (CULICIDAE) or TICKS. Clinical manifestations include fever, headache, alterations of mentation, focal neurologic deficits, and COMA. (From Clin Microbiol Rev 1994 Jan;7(1):89-116; Walton, Brain's Diseases of the Nervous System, 10th ed, p321)
- 064 is a specific code that can be used to specify a diagnosis
- 064 contains 7 index entries
064 also known as:- Arthropod-borne viral encephalitis, vector unknown
- Negishi virus encephalitis
064 excludes: - viral encephalitis NOS (049.9)
Index entries containing 064:- Encephalitis (bacterial) (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) 323.9
- arboviral, arbovirus NEC
 064
- arthropod-borne (see also Encephalitis, viral, arthropod-borne) 064
- due to
- negishi virus 064
- Negishi virus 064
- viral, virus 049.9
- arthropod-borne NEC 064
- mosquito-borne 062.9
- tick-borne 063.9
- vector unknown 064
Infection, infected, infective (opportunistic) 136.9- virus, viral 079.99
- encephalitis 049.9
- arthropod-borne NEC 064
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