2026 ICD-10-CM Diagnosis Code A92.32West Nile virus infection with other neurologic manifestation

ICD-10-CM Codes›A00–B99›A90-A99›A92

ICD-10-CM A92.32
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A92.32 is a billable ICD-10-CM diagnosis code for West Nile virus infection with other neurologic manifestation. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 865 through 866. Coders also document this condition as disease caused by West Nile virus. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Viral infection.

Code Identity

ICD-10-CM Code
A92.32
Billable Status
Yes — Valid for Submission
Code Describes
West Nile virus infection with other neurologic manifestation
Short Description
West Nile virus infection with oth neurologic manifestation
Parent Code
A92.3
West Nile virus infection

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA90-A99Arthropod-borne viral fevers and viral hemorrhagic fevers
CategoryA92Other mosquito-borne viral fevers
This CodeA92.32West Nile virus infection with other neurologic manifestation

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Disease caused by West Nile virus
  • Disorder of nervous system caused by West Nile virus
  • Meningitis caused by West Nile virus

Tabular List NotesGuidance

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

Use Additional Code

  • code to specify the neurologic manifestation

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.

    • Fever(inanition) (of unknown origin) (persistent) (with chills) (with rigor)
      • West
        • Nile (viral)
          • with
            • cranial nerve disorders
    • Fever(inanition) (of unknown origin) (persistent) (with chills) (with rigor)
      • West
        • Nile (viral)
          • with
            • neurologic manifestation NEC
    • Fever(inanition) (of unknown origin) (persistent) (with chills) (with rigor)
      • West
        • Nile (viral)
          • with
            • optic neuritis
    • Fever(inanition) (of unknown origin) (persistent) (with chills) (with rigor)
      • West
        • Nile (viral)
          • with
            • polyradiculitis
    • Virus, viral
      • West Nile (fever)
        • with
          • cranial nerve disorders
    • Virus, viral
      • West Nile (fever)
        • with
          • neurologic manifestation NEC
    • Virus, viral
      • West Nile (fever)
        • with
          • optic neuritis
    • Virus, viral
      • West Nile (fever)
        • with
          • polyradiculitis

Clinical ClassificationClinical

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

CCSR INF008
Viral infection
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Neurologic Diseases

The brain, spinal cord, and nerves make up the nervous system. Together they control all the workings of the body. When something goes wrong with a part of your nervous system, you can have trouble moving, speaking, swallowing, breathing, or learning. You can also have problems with your memory, senses, or mood.

Read the full article at MedlinePlus

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

Convert A92.32 to ICD-9-CMHistory

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

ICD-9-CM
066.42 West Nile neuro man NEC
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 A92.32Overview

Is A92.32 (West Nile virus infection) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report West Nile virus infection with other neurologic manifestation on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does A92.32 group to?

When West Nile virus infection with other neurologic manifestation is the principal diagnosis on an inpatient stay, it groups to MS-DRG 865, 866, with relative weights from 0.8696 to 1.4983 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of A92.32?

Under the General Equivalence Mappings, West Nile virus infection with other neurologic manifestation converts to ICD-9-CM 066.42 (West Nile neuro man NEC). 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.