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    OpenPayerBilling CodesSequelae of infectious and parasitic diseasesICD-10-CM b91-sequelae-of-poliomyelitis
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    ICD-10-CM Code For Sequelae Of Poliomyelitis: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group B91 includes diagnoses for late effects and sequelae of prior poliomyelitis, such as residual motor weakness, limb deformities, and post-polio functional limitations. These ICD-10-CM diagnosis codes are used to document chronic neurological and musculoskeletal impairments following acute poliovirus infection, capturing disease severity, affected body regions, and ongoing clinical complexity. Accurate coding within the ICD-10-CM B91 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM B91: Sequelae Of Poliomyelitis Overview

    The diagnoses in this group represent late effects and residual conditions resulting from prior poliomyelitis infection, typically involving the nervous and musculoskeletal systems. They target post-polio motor deficits, muscle weakness, deformities, and related functional impairments. Accurate coding matters for appropriate documentation of long-term disability and supports correct reimbursement for ongoing care needs.

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    When to Use

    Use a code from this group when documenting ongoing impairments directly attributable to a prior episode of poliomyelitis rather than acute or unrelated conditions. These codes apply for encounters addressing long-term disability management, rehabilitation, assistive devices, or follow-up care for post-polio sequelae.

    ICD-10-CM Codes

    1 rows

    ICD-10-CM CodeDescription
    B91Sequelae of poliomyelitis

    DRG Codes

    3 rows

    DRG CodeDescription
    091Other Disorders of Nervous System with MCC
    092Other Disorders of Nervous System with CC
    093Other Disorders of Nervous System without CC/MCC

    Typical Clinical Scenarios

    • An older adult with a history of paralytic poliomyelitis in childhood presents to the clinic with progressive asymmetric limb weakness, joint deformities, and chronic lower extremity muscle atrophy causing gait disturbance and difficulty with activities of daily living. The patient reports that these deficits have been stable but are now complicated by increased fatigue and recurrent falls prompting evaluation for long-standing neurologic sequelae of the prior infection; a diagnosis from this group is assigned to identify the wide-reaching residual effects attributable to the previous poliovirus infection. Typical codes: B91
    • A middle-aged patient arrives to the emergency department after an acute respiratory infection and is noted to have new worsening of baseline respiratory muscle weakness and hypoventilation on chronic stable neuromuscular impairment from past poliomyelitis, requiring supplemental oxygen and monitoring. Because the current decompensation occurs on a background of prior poliomyelitis-related neuromuscular compromise, a code from this group is used to indicate the underlying sequelae contributing to the acute respiratory compromise. Typical codes: B91
    • A patient with long-standing post-polio musculoskeletal deformities and limb length discrepancy is seen by orthopedics for progressive joint pain, contractures, and functional decline that complicate rehabilitation and prosthetic fitting after a recent fall. The clinician documents that these chronic orthopedic and functional limitations are complications of the prior poliomyelitis infection, and a code from this group is assigned to capture the chronic sequelae impacting current care and rehabilitation planning. Typical codes: B91

    Related Codes

    B90-SEQUELAE-OF-TUBERCULOSIS

    ICD-10-CM Code For Sequelae Of Tuberculosis: Group Overview

    B92-SEQUELAE-OF-LEPROSY

    ICD-10-CM Code For Sequelae Of Leprosy: Group Overview

    B94-SEQUELAE-OF-INFECTIOUS-DISEASES

    ICD-10-CM Code For Sequelae Of Other And Unspecified Infectious And Parasitic Diseases: 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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