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    v1.0.28
    OpenPayerBilling CodesViral and prion infections of the central nervous systemICD-10-CM a80-acute-poliomyelitis
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    ICD-10-CM Code For Acute Poliomyelitis: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group A80 includes acute poliomyelitis diagnoses covering infections by poliovirus that primarily affect the spinal cord and can cause acute flaccid paralysis and neurological deficits. These ICD-10-CM diagnosis codes are used to document acute viral invasion of the central nervous system, capturing disease severity, neurological involvement, and complications such as respiratory failure. Accurate coding within the ICD-10-CM A80 group supports proper claim adjudication and complete clinical documentation for appropriate reimbursement.

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    ICD-10-CM A80: Acute Poliomyelitis Overview

    The diagnoses in this group represent acute poliomyelitis infections affecting the central nervous system, typically caused by wild-type or vaccine-derived poliovirus. These conditions target the anterior horn cells of the spinal cord and may result in acute flaccid paralysis and respiratory compromise. Accurate coding is important for clinical documentation, public health surveillance, and proper reimbursement for services related to acute viral central nervous system infections.

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    When to Use

    Use a code from this group when a patient is diagnosed with acute poliomyelitis confirmed clinically or by laboratory testing and when documentation specifies paralytic status or complications. Select the code that matches the documented clinical presentation, including anatomical involvement and severity, to support accurate reporting and reimbursement.

    ICD-10-CM Codes

    7 rows

    ICD-10-CM CodeDescription
    A80.0Acute paralytic poliomyelitis, vaccine-associated
    A80.1Acute paralytic poliomyelitis, wild virus, imported
    A80.2Acute paralytic poliomyelitis, wild virus, indigenous
    A80.30Acute paralytic poliomyelitis, unspecified
    A80.39Other acute paralytic poliomyelitis
    A80.4Acute nonparalytic poliomyelitis
    A80.9Acute poliomyelitis, unspecified

    DRG Codes

    7 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
    865Viral Illness with MCC
    866Viral Illness without MCC

    Typical Clinical Scenarios

    • An unvaccinated child presents to the emergency department with sudden onset high fever, severe asymmetric flaccid paralysis of one lower limb, neck stiffness, and diffuse muscle tenderness. CSF shows pleocytosis and enterovirus PCR is positive for poliovirus; clinicians admit for close respiratory and neurological monitoring due to risk of bulbar involvement. A diagnosis from this group is assigned to identify acute paralytic poliomyelitis requiring inpatient care. Typical codes: A80.0, A80.1
    • An adult traveller returns from an endemic area with a subacute febrile illness and nonparalytic meningitic signs (headache, photophobia, nuchal rigidity) without focal motor deficits; lumbar puncture demonstrates viral meningitis consistent with poliovirus infection. The patient is managed as an outpatient or short observation for supportive care and public health notification. A nonparalytic poliomyelitis code from this group is used to classify a viral meningeal presentation without paralysis. Typical codes: A80.2, A80.30
    • A patient previously diagnosed with paralytic poliomyelitis years earlier develops new progressive weakness, fatigue, and respiratory muscle decline consistent with post-polio sequelae and has an acute exacerbation requiring hospitalization for ventilatory support. The historical and current neurologic status is documented so that both the chronic sequelae and any acute paralytic relapse or complication are captured. Typical codes: A80.4, A80.9

    Related Codes

    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

    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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