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    v1.0.28
    OpenPayerBilling CodesArthropod-borne viral fevers and viral hemorrhagic feversICD-10-CM a96-arenaviral-hemorrhagic-fever
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    ICD-10-CM Code for Arenaviral Hemorrhagic Fever: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group A96 includes infections caused by arenaviruses that result in hemorrhagic fever syndromes, encompassing clinical presentations with fever, bleeding, and potential multi-organ involvement. These ICD-10-CM diagnosis codes are used to document acute infectious presentations, severity of systemic involvement, and complications such as hemorrhage or organ dysfunction relevant to this group. Accurate coding within the ICD-10-CM A96 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM A96: Arenaviral Hemorrhagic Fever Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM A96) arenaviral hemorrhagic fever group represents infections caused by arenaviruses that can produce systemic febrile illness with bleeding diathesis and multi-organ involvement. These conditions primarily affect the vascular and hematologic systems with potential respiratory, renal, or neurologic complications. Accurate coding is important to reflect clinical severity and support appropriate reimbursement and public health reporting.

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    When to Use

    Use a code from this group when a patient presents with clinical or laboratory evidence of an arenaviral infection producing hemorrhagic fever features such as bleeding, hypotension, or organ dysfunction. Codes from this group are selected when documentation supports an arenaviral etiology or a clinician documents arenaviral hemorrhagic fever.

    ICD-10-CM Codes

    5 rows

    ICD-10-CM CodeDescription
    A96.0Junin hemorrhagic fever
    A96.1Machupo hemorrhagic fever
    A96.2Lassa fever
    A96.8Other arenaviral hemorrhagic fevers
    A96.9Arenaviral hemorrhagic fever, unspecified

    DRG Codes

    2 rows

    DRG CodeDescription
    865Viral Illness with MCC
    866Viral Illness without MCC

    Typical Clinical Scenarios

    • An adult presents to the emergency department with sudden high fever, severe myalgia, diffuse petechial rash, hypotension, and active gastrointestinal bleeding after recent travel to a region with known arenavirus outbreaks; laboratory testing shows thrombocytopenia and elevated liver enzymes. The acute, life‑threatening hemorrhagic presentation following exposure prompts assignment of an acute arenaviral hemorrhagic fever code to capture the infectious cause and severity. Typical codes: A96.0, A96.9
    • A hospitalized patient with confirmed arenavirus infection initially received acute management but now requires ongoing inpatient monitoring for prolonged convalescence with persistent fatigue, intermittent low-grade fevers, and slow recovery of platelet counts; documentation notes sequelae of the viral hemorrhagic illness. Coding is used to reflect the continuing care related to the known arenaviral disease during the recovery phase. Typical codes: A96.1, A96.9
    • A patient with chronic immunosuppression develops a secondary complication of a recent arenaviral infection manifesting as isolated meningoencephalitis and focal neurologic deficits without active hemorrhage; cerebrospinal fluid PCR confirms arenavirus. Because the primary etiology is an arenavirus causing a complication outside the typical hemorrhagic syndrome, an arenaviral infection code specific to the presenting complication is assigned. Typical codes: A96.2, A96.8

    Related Codes

    A90-DENGUE-FEVER-CLASSICAL-DENGUE

    ICD-10-CM Code For Dengue Fever Classical Dengue: Group Overview

    A91-DENGUE-HEMORRHAGIC-FEVER

    ICD-10-CM Code For Dengue Hemorrhagic Fever: Group Overview

    A92-OTHER-MOSQUITO-BORNE-VIRAL-FEVERS

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

    A93-OTHER-ARTHROPOD-BORNE-VIRAL-FEVERS

    ICD-10-CM Code For Other Arthropod Borne Viral Fevers Not Elsewhere Classified: Group Overview

    A94-UNSPECIFIED-ARTHROPOD-BORNE-VIRAL-FEVER

    ICD-10-CM Code For Unspecified Arthropod-Borne Viral Fever: Group Overview

    A95-YELLOW-FEVER

    ICD-10-CM Code For Yellow Fever: Group Overview

    A98-OTHER-VIRAL-HEMORRHAGIC-FEVERS

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

    A99-UNSPECIFIED-VIRAL-HEMORRHAGIC-FEVER

    ICD-10-CM Code For Unspecified Viral Hemorrhagic Fever: 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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