ICD-10 Diagnosis Code A92.30

West Nile virus infection, unspecified

Diagnosis Code A92.30

ICD-10: A92.30
Short Description: West Nile virus infection, unspecified
Long Description: West Nile virus infection, unspecified
This is the 2017 version of the ICD-10-CM diagnosis code A92.30

Code Classification
  • Certain infectious and parasitic diseases
    • Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)
      • Other mosquito-borne viral fevers (A92)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code A92.30 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Disease caused by West Nile virus
  • West Nile fever without encephalitis

Index of Diseases and Injuries
References found for the code A92.30 in the Index of Diseases and Injuries:

Information for Patients

West Nile Virus

Also called: WNV

West Nile virus (WNV) is an infectious disease that first appeared in the United States in 1999. Infected mosquitoes spread the virus that causes it. People who get WNV usually have no symptoms or mild symptoms. The symptoms include a fever, headache, body aches, skin rash, and swollen lymph glands. They can last a few days to several weeks, and usually go away on their own.

If West Nile virus enters the brain, however, it can be life-threatening. It may cause inflammation of the brain, called encephalitis, or inflammation of the tissue that surrounds the brain and spinal cord, called meningitis. A physical exam, health history and laboratory tests can diagnose it.

Older people and those with weakened immune systems are most at risk. There are no specific vaccines or treatments for human WNV disease. The best way to avoid WNV is to prevent mosquito bites:

  • Use insect repellent
  • Get rid of mosquito breeding sites by emptying standing water from flower pots, buckets or barrels
  • Stay indoors between dusk and dawn, when mosquitoes are most active
  • Use screens on windows to keep mosquitoes out

NIH: National Institute of Allergy and Infectious Diseases

  • West Nile virus

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