ICD-10-CM Code A92.31

Valid for Submission

A92.31 is a billable code used to specify a medical diagnosis of west nile virus infection with encephalitis. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code A92.31 might also be used to specify conditions or terms like disease due to west nile virus or disorder of nervous system due to west nile virus or west nile encephalitis.

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code A92.31:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.

• West Nile encephalitis
• West Nile encephalomyelitis

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code A92.31 are found in the index:

• - Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) - R50.9
  • - West
    • - Nile (viral) - A92.30
      • - with
        • - encephalitis - A92.31
        • - encephalomyelitis - A92.31

• - Virus, viral - See Also: condition;
  • - West Nile (fever) - A92.30
    • - with
      • - encephalitis - A92.31
      • - encephalomyelitis - A92.31

Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

• Disease due to West Nile virus
• Disorder of nervous system due to West Nile virus
• West Nile encephalitis

Diagnostic Related Groups

The ICD-10 code A92.31 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). applicable from 10/01/2020 through 09/30/2020.

• 865 - VIRAL ILLNESS WITH MCC
• 866 - VIRAL ILLNESS WITHOUT MCC

Convert A92.31 to ICD-9

• 066.41 - West Nile Fever w/enceph

Code Classification

• Certain infectious and parasitic diseases (A00–B99)
  • Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)
    • Other mosquito-borne viral fevers (A92)

Code History

• FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
  (First year ICD-10-CM implemented into the HIPAA code set)
• FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
• FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
• FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
• FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Tools

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• Convert A92.31 to ICD-9