Billable / Specific Code
ICD-10-CM A92.31 is the diagnosis code for West Nile virus infection with encephalitis. This code falls under the section "Arthropod-borne viral fevers and viral hemorrhagic fevers" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where A92.31 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, A92.31 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
A92.31 is the ICD-10-CM diagnosis code for "West Nile virus infection with encephalitis". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of A92.31 is A92.3 ("West Nile virus infection"). A92.31 provides a more specific classification within this category.
A92.31 is located in Section A90-A99 — "Arthropod-borne viral fevers and viral hemorrhagic fevers" within Chapter 1 of the ICD-10-CM Tabular List.
Use A92.31 when the patients documented diagnosis matches "West Nile virus infection with encephalitis" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for West Nile virus infection with encephalitis is A92.31.
Yes, A92.31 can be used as a primary diagnosis code since it is billable and specific.
A92.31 is in Chapter 1 of the ICD-10-CM Tabular List.
Yes, A92.31 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.