2026 ICD-10-CM Diagnosis Code A92.2Venezuelan equine fever

ICD-10-CM Codes›A00–B99›A90-A99›A92

ICD-10-CM A92.2
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A92.2 is a billable ICD-10-CM diagnosis code for Venezuelan equine fever. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as disease caused by Alphavirus. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Encephalitis and Viral infection.

Code Identity

ICD-10-CM Code
A92.2
Billable Status
Yes — Valid for Submission
Code Describes
Venezuelan equine fever
Short Description
Venezuelan equine fever
Same as the full description in the CMS dataset.
Parent Code
A92
Other mosquito-borne viral fevers

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA90-A99Arthropod-borne viral fevers and viral hemorrhagic fevers
CategoryA92Other mosquito-borne viral fevers
This CodeA92.2Venezuelan equine fever

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Disease caused by Alphavirus
  • Disorder caused by Venezuelan equine encephalitis virus
  • Encephalitis caused by Alphavirus
  • Encephalitis caused by Venezuelan equine encephalomyelitis virus
  • Invasive viral infectious disease
  • Neuroinvasive Venezuelan equine encephalitis virus infection
  • Venezuelan equine encephalitis virus non-neuroinvasive disease

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Venezuelan equine encephalitis
  • Venezuelan equine encephalomyelitis virus disease

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Encephalitis(chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute)
      • equine (acute) (infectious) (viral)
        • Venezuelan
    • Encephalitis(chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute)
      • Venezuelan equine
    • Encephalomyelitis
      • equine
        • Venezuelan
    • Encephalomyelitis
      • Venezuelan equine
    • Fever(inanition) (of unknown origin) (persistent) (with chills) (with rigor)
      • Venezuelan equine

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS002
Encephalitis
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR INF008
Viral infection
Default principal diagnosis: inpatient No · outpatient No

Clinical InformationClinical

  • Venezuelan Equine Fever

    a condition caused by infection by the venezuelan equine encephalitis virus, which is characterized by headache, fever, myalgia, nausea, and vomiting.

Patient EducationClinical

Encephalitis

Encephalitis is inflammation (swelling) of the brain. It can happen when an infection or medical condition that affects the brain activates your immune system. The inflammation can cause a wide range of symptoms. In extreme cases, it can lead to brain damage, stroke, or even death.

The full article covers:

  • What is encephalitis?
  • What causes encephalitis?
  • Who is more likely to get encephalitis?
  • What are the symptoms of encephalitis?
  • How is encephalitis diagnosed?
  • What are the treatments for encephalitis?
  • Can encephalitis be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert A92.2 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
066.2 Venezuelan equine fever
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About A92.2Overview

Is A92.2 (Other mosquito-borne viral fevers) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report Venezuelan equine fever on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of A92.2?

Under the General Equivalence Mappings, Venezuelan equine fever converts to ICD-9-CM 066.2 (Venezuelan equine fever). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.