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    v1.0.28
    OpenPayerBilling CodesViral and prion infections of the central nervous systemICD-10-CM a82-rabies
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    ICD-10-CM Code For Rabies: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group A82 includes rabies diagnoses, covering rabies encephalitis, paralytic rabies, and sequelae of rabies infection following exposure to the rabies virus. These ICD-10-CM diagnosis codes are used to document acute central nervous system infection by the rabies virus, clinical forms such as encephalitic or paralytic disease, and complications or sequelae that affect prognosis and care. Accurate coding within the ICD-10-CM A82 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM A82: Rabies Overview

    The ICD-10-CM A82 group includes diagnoses for rabies infection, a viral disease affecting the central nervous system that can present as encephalitis or paralytic forms. These codes target central nervous system viral infections caused by the rabies virus and related exposure sequelae. Accurate coding matters for reimbursement because it documents disease severity, treatment justification, and supports appropriate claim adjudication.

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    When to Use

    Use a code from this group when a patient has laboratory-confirmed or clinically diagnosed rabies affecting the central nervous system, or when documenting sequelae attributable to prior rabies infection. Codes are also used to indicate the clinical form of rabies, such as encephalitic or paralytic presentations, which affect management and reporting.

    ICD-10-CM Codes

    3 rows

    ICD-10-CM CodeDescription
    A82.0Sylvatic rabies
    A82.1Urban rabies
    A82.9Rabies, unspecified

    DRG Codes

    5 rows

    DRG CodeDescription
    023Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator
    024Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC
    097Non-Bacterial Infection of Nervous System Except Viral Meningitis with MCC
    098Non-Bacterial Infection of Nervous System Except Viral Meningitis with CC
    099Non-Bacterial Infection of Nervous System Except Viral Meningitis without CC/MCC

    Typical Clinical Scenarios

    • An adult presents to the emergency department with a rapidly progressive encephalitis characterized by fever, severe agitation, hydrophobia, hypersalivation, and paralysis after an unprovoked bat bite two weeks earlier; the clinical picture and exposure history prompt immediate neurologic evaluation and the assignment of a rabies encephalitis diagnosis. Typical codes: A82.0
    • A child arrives for evaluation after developing neurologic symptoms including fever, headache, confusion, and ascending paralysis several weeks following a dog bite in an area without prior postexposure prophylaxis; testing and clinical course suggest rabies meningoencephalitis, leading clinicians to code the viral central nervous system infection. Typical codes: A82.1
    • An adult with terminal neurologic decline and altered mental status is admitted from hospice with progressive encephalopathy presumed to be due to rabies after delayed presentation following wildlife exposure; the diagnosis is recorded for acute care documentation and public health reporting when confirmatory testing is pending or clinical diagnosis is made. Typical codes: A82.9

    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

    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

    A87-VIRAL-MENINGITIS

    ICD-10-CM Code For Viral Meningitis: 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.
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