2019 ICD-10-CM Diagnosis Code A92.30

West Nile virus infection, unspecified

    2016 2017 2018 2019 Billable/Specific Code
  • A92.30 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM A92.30 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of A92.30 - other international versions of ICD-10 A92.30 may differ.
Applicable To
  • West Nile fever NOS
  • West Nile fever without complications
  • West Nile virus NOS
The following code(s) above A92.30 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to A92.30:
  • A00-B99
    2019 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • carrier or suspected carrier of infectious disease (Z22.-)
    • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
    • infectious and parasitic diseases specific to the perinatal period (P35-P39)
    • influenza and other acute respiratory infections (J00-J22)
    Use Additional
    • code to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
  • A92
    ICD-10-CM Diagnosis Code A92

    Other mosquito-borne viral fevers

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • Ross River disease (B33.1)
    Other mosquito-borne viral fevers
  • A92.3
    ICD-10-CM Diagnosis Code A92.3

    West Nile virus infection

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Applicable To
    • West Nile fever
    West Nile virus infection
Approximate Synonyms
  • Disease due to west nile virus
  • West nile virus infection
Clinical Information
  • A mosquito-borne viral illness caused by the west nile virus, a flavivirus and endemic to regions of africa, asia, and europe. Common clinical features include headache; fever; maculopapular rash; gastrointestinal symptoms; and lymphadenopathy. Meningitis; encephalitis; and myelitis may also occur. The disease may occasionally be fatal or leave survivors with residual neurologic deficits. (from Joynt, Clinical Neurology, 1996, ch26, p13; lancet 1998 sep 5;352(9130):767-71)
  • 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
ICD-10-CM A92.30 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 865 Viral illness with mcc
  • 866 Viral illness without mcc

Convert A92.30 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change

Diagnosis Index entries containing back-references to A92.30:
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
    ICD-10-CM Diagnosis Code R50.9

    Fever, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Fever NOS
    • Fever of unknown origin [FUO]
    • Fever with chills
    • Fever with rigors
    • Hyperpyrexia NOS
    • Persistent fever
    • Pyrexia NOS
  • Virus, viral - see also condition

ICD-10-CM Codes Adjacent To A92.30
A88.1 Epidemic vertigo
A88.8 Other specified viral infections of central nervous system
A89 Unspecified viral infection of central nervous system
A90 Dengue fever [classical dengue]
A91 Dengue hemorrhagic fever
A92 Other mosquito-borne viral fevers
A92.0 Chikungunya virus disease
A92.1 O'nyong-nyong fever
A92.2 Venezuelan equine fever
A92.3 West Nile virus infection
A92.30 …… unspecified
A92.31 …… with encephalitis
A92.32 …… with other neurologic manifestation
A92.39 …… with other complications
A92.4 Rift Valley fever
A92.5 Zika virus disease
A92.8 Other specified mosquito-borne viral fevers
A92.9 Mosquito-borne viral fever, unspecified
A93 Other arthropod-borne viral fevers, not elsewhere classified
A93.0 Oropouche virus disease
A93.1 Sandfly fever

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.