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    OpenPayerBilling CodesArthropod-borne viral fevers and viral hemorrhagic feversICD-10-CM a98-other-viral-hemorrhagic-fevers
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    ICD-10-CM Code For Other Viral Hemorrhagic Fevers Not Elsewhere Classified: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group A98 includes other viral hemorrhagic fevers not elsewhere classified, such as less common or unspecified viral hemorrhagic infections that cause systemic febrile illness and bleeding manifestations. These ICD-10-CM diagnosis codes are used to document acute viral infections presenting with hemorrhagic signs, systemic involvement, or complications requiring inpatient or specialized care. Accurate coding within the ICD-10-CM A98 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM A98: Other Viral Hemorrhagic Fevers, Not Elsewhere Classified Overview

    This group includes individual viral hemorrhagic fever diagnoses that are not classified elsewhere, affecting multiple organ systems with bleeding diatheses and systemic illness. These conditions primarily involve vascular and hematologic systems and can lead to significant clinical complexity. Accurate coding is important for appropriate clinical documentation and reimbursement for services related to severe infectious disease management.

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    When to Use

    Use a code from this group when a clinician documents a viral hemorrhagic fever that does not fit into a more specific ICD-10-CM category or when the infecting virus is unspecified. These codes apply when the presentation includes systemic febrile illness with hemorrhagic manifestations requiring diagnostic or therapeutic services.

    ICD-10-CM Codes

    7 rows

    ICD-10-CM CodeDescription
    A98.0Crimean-Congo hemorrhagic fever
    A98.1Omsk hemorrhagic fever
    A98.2Kyasanur Forest disease
    A98.3Marburg virus disease
    A98.4Ebola virus disease
    A98.5Hemorrhagic fever with renal syndrome
    A98.8Other specified viral hemorrhagic fevers

    DRG Codes

    4 rows

    DRG CodeDescription
    689Kidney and Urinary Tract Infections with MCC
    690Kidney and Urinary Tract Infections without MCC
    865Viral Illness with MCC
    866Viral Illness without MCC

    Typical Clinical Scenarios

    • An adult presents to the emergency department with high fever, severe myalgias, hypotension, diffuse petechial rash, and acute onset of bleeding from mucous membranes after recent travel to a region with known hantavirus activity; laboratory tests show thrombocytopenia and elevated hematocrit consistent with a viral hemorrhagic fever. The acute, severe systemic presentation requiring emergent evaluation and public health notification leads to assignment of an acute viral hemorrhagic fever code from this group. Typical codes: A98.5, A98.4
    • A pediatric patient is admitted from an outpatient clinic with persistent fever, progressive multi-organ involvement including renal impairment and prolonged convalescent fatigue following a confirmed arenavirus infection acquired months earlier; the child has ongoing sequelae requiring serial monitoring and symptomatic management. Because the condition represents ongoing or convalescent manifestations of a viral hemorrhagic fever rather than a new unrelated diagnosis, a code from this group for the viral hemorrhagic fever is assigned to capture the underlying infectious etiology. Typical codes: A98.2, A98.1
    • An immunocompromised elderly patient develops secondary bacterial pneumonia and acute kidney injury while hospitalized for a diagnosed viral hemorrhagic fever contracted after an arthropod exposure; the hemorrhagic fever is recorded as the primary infectious cause complicating the inpatient course and guiding isolation and infection control measures. In this complication/comorbidity scenario the hemorrhagic fever code is used to reflect the underlying viral illness contributing to the current complications. Typical codes: A98.3, A98.8

    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

    A96-ARENAVIRAL-HEMORRHAGIC-FEVER

    ICD-10-CM Code for Arenaviral Hemorrhagic Fever: 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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