Loading...

    Explore
    • Policy Monitoring
    • Live Policy Feed
    • Billing Codes
    • NPI Medicare & Medicaid
    • Healthcare Providers
    • Health Insurance Payers
    • States
    • Service Lines
    • Taxonomy Codes
    Lookup tools
    • Billing Code Lookup
    • CPT Modifier Lookup
    • Provider Taxonomy Code Lookup
    • Healthcare Provider & Facility Lookup
    • Health Insurance Payer Lookup
    • Payer Contact Directory

    Policy & Benchmark Tools

    • Prior Authorization Lookup
    • Coverage Criteria Lookup
    • Timely Filing Lookup
    • Billing Code Reimbursement Rates
    • Payer Comparison Dashboard
    • Facility Comparison Dashboard
    • All tools

    Company

    • About OpenPayer
    • Data Sources
    • Trek Health
    OpenPayerby Trek Health
    LinkedInYouTube

    © 2026 Trek Health. All rights reserved.

    OpenPayer is built and maintained by Trek Health.

    v1.0.28
    OpenPayerBilling CodesViral and prion infections of the central nervous systemICD-10-CM a87-viral-meningitis
    Ask Trek AI about this page

    ICD-10-CM Code For Viral Meningitis: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group A87 includes viral meningitis diagnoses such as aseptic meningitis caused by enteroviruses, herpesviruses, and other viral pathogens affecting the meninges. These ICD-10-CM diagnosis codes are used to document clinical presentations of meningeal inflammation of viral etiology, capturing disease severity, central nervous system involvement, and any associated complications. Accurate coding within the ICD-10-CM A87 group supports proper claim adjudication.

    Customize your policy alerts

    Sign up for ICD-10-CM Code For Viral Meningitis: Group Overview policy alerts

    Get alerted when relevant policies change without checking for updates manually.

    Monitor payer policy activity

    Receive email alerts as soon as relevant payer policies are published or updated.

    ICD-10-CM A87: Viral Meningitis Overview

    The ICD-10-CM A87 code group represents viral meningitis diagnoses affecting the central nervous system, typically involving inflammation of the meninges caused by viral pathogens. These conditions target the nervous system and can vary in severity from self-limited illness to more severe presentations requiring hospitalization. Accurate coding matters for reimbursement because it ensures clinical severity and resource use are documented for proper claim adjudication.

    Table of contents

    Progress1 / 6

    Explore openpayer tools

    • Billing CodesCPT, HCPCS, DRG & more
    • Reimbursement RatesCommercial vs. Medicare rate reports
    • ProvidersHospitals & facilities
    • PayersPlans & market footprint
    • Taxonomy CodesNUCC specialty codes
    • ModifiersCPT modifiers & usage
    • Prior AuthorizationPA policies by payer & drug
    • Timely FilingFiling deadlines by payer
    • Coverage CriteriaMedical necessity by payer
    • Payer ContactsClaims, PA & appeals contacts
    View all tools

    When to Use

    Use a code from this group when clinical evaluation, laboratory testing, or cerebrospinal fluid analysis identifies meningitis due to a viral cause or when a viral etiology is clinically suspected. Select a more specific code when a particular virus is documented and use unspecified codes when the viral agent is not identified.

    ICD-10-CM Codes

    5 rows

    ICD-10-CM CodeDescription
    A87.0Enteroviral meningitis
    A87.1Adenoviral meningitis
    A87.2Lymphocytic choriomeningitis
    A87.8Other viral meningitis
    A87.9Viral meningitis, unspecified

    DRG Codes

    2 rows

    DRG CodeDescription
    075Viral Meningitis with CC/MCC
    076Viral Meningitis without CC/MCC

    Typical Clinical Scenarios

    • An otherwise healthy 8-year-old child presents to the emergency department with sudden onset fever, headache, photophobia, neck stiffness, and vomiting for 24 hours after a recent enteroviral URI outbreak at school. Lumbar puncture shows lymphocytic pleocytosis and normal glucose with negative bacterial cultures, leading clinicians to diagnose acute viral meningitis due to a presumed enteroviral agent. Typical codes: A87.0
    • An adult patient with known herpes simplex virus infection develops subacute headache, fever, and confusion over several days and is admitted for IV antiviral therapy; cerebrospinal fluid PCR returns positive for herpesviruses, confirming viral involvement of the meninges rather than encephalitis alone. The diagnosis reflects viral meningitis as a central nervous system infection secondary to a recognized viral pathogen. Typical codes: A87.1
    • An elderly inpatient receiving chemotherapy becomes febrile and acutely encephalopathic; CSF analysis demonstrates lymphocytic predominance and viral PCRs are non-specific or pending, so clinicians document viral meningitis, unspecified, while managing empirically and awaiting further testing. This code is used when viral meningitis is diagnosed but a specific viral etiology has not been identified. Typical codes: A87.9

    Related Codes

    A80-ACUTE-POLIOMYELITIS

    ICD-10-CM Code For Acute Poliomyelitis: Group Overview

    A81-ATYPICAL-VIRUS-INFECTIONS-CENTRAL-NERVOUS-SYSTEM

    ICD-10-CM Code For Atypical Virus Infections Of Central Nervous System: Group Overview

    A82-RABIES

    ICD-10-CM Code For Rabies: Group Overview

    A83-MOSQUITO-BORNE-VIRAL-ENCEPHALITIS

    ICD-10-CM Code For Mosquito-Borne Viral Encephalitis: Group Overview

    A84-TICK-BORNE-VIRAL-ENCEPHALITIS

    ICD-10-CM Code For Tick-Borne Viral Encephalitis: Group Overview

    A85-OTHER-VIRAL-ENCEPHALITIS

    ICD-10-CM Code For Other Viral Encephalitis Not Elsewhere Classified: Group Overview

    A86-UNSPECIFIED-VIRAL-ENCEPHALITIS

    ICD-10-CM Code For Unspecified Viral Encephalitis: Group Overview

    A88-OTHER-VIRAL-CENTRAL-NERVOUS-SYSTEM-INFECTIONS

    ICD-10-CM Code For Other Viral Infections Of Central Nervous System Not Elsewhere Classified: Group Overview

    A89-UNSPECIFIED-VIRAL-INFECTION-CENTRAL-NERVOUS-SYSTEM

    ICD-10-CM Code For Unspecified Viral Infection Of Central Nervous System: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
    Published by

    Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.