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    v1.0.28
    OpenPayerBilling CodesInfluenza and pneumoniaICD-10-CM j12-viral-pneumonia-not-elsewhere-classified
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    ICD-10-CM Code For Viral Pneumonia Not Elsewhere Classified: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group J12 includes viral pneumonias not specified elsewhere, covering acute infectious involvement of the lung parenchyma due to identified or unspecified viral agents. These ICD-10-CM diagnosis codes are used to document clinical scenarios such as acute viral lower respiratory tract infection with radiographic evidence of pneumonia, capturing disease severity, organ involvement, or clinical complexity relevant to this group. Accurate coding within the ICD-10-CM J12 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM J12: Viral Pneumonia, Not Elsewhere Classified Overview

    The ICD-10-CM J12 diagnosis group covers viral pneumonias that are not specified elsewhere, affecting the lower respiratory tract and pulmonary parenchyma. These codes describe infectious inflammation of the lungs caused by viral pathogens and related clinical presentations. Accurate coding matters for appropriate clinical documentation, epidemiologic tracking, and reimbursement clarity.

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    When to Use

    Use a code from this group when a patient has evidence of pneumonia attributed to a viral cause that is not categorized in another specific viral pneumonia code. These codes apply when clinical evaluation and imaging support a diagnosis of viral pneumonia but the pathogen is unspecified or does not fit a more specific code.

    ICD-10-CM Codes

    8 rows

    ICD-10-CM CodeDescription
    J12.0Adenoviral pneumonia
    J12.1Respiratory syncytial virus pneumonia
    J12.2Parainfluenza virus pneumonia
    J12.3Human metapneumovirus pneumonia
    J12.81Pneumonia due to SARS-associated coronavirus
    J12.82Pneumonia due to coronavirus disease 2019
    J12.89Other viral pneumonia
    J12.9Viral pneumonia, unspecified

    DRG Codes

    6 rows

    DRG CodeDescription
    193Simple Pneumonia and Pleurisy with MCC
    194Simple Pneumonia and Pleurisy with CC
    195Simple Pneumonia and Pleurisy without CC/MCC
    974HIV with Major Related Condition with MCC
    975HIV with Major Related Condition with CC
    976HIV with Major Related Condition without CC/MCC

    Related Codes

    J09-INFLUENZA-DUE-TO-CERTAIN-IDENTIFIED-INFLUENZA-VIRUSES

    ICD-10-CM Code For Influenza Due To Certain Identified Influenza Viruses: Group Overview

    J10-INFLUENZA-DUE-TO-OTHER-IDENTIFIED-VIRUS

    ICD-10-CM Code For Influenza Due To Other Identified Influenza Virus: Group Overview

    J11-INFLUENZA-UNIDENTIFIED-VIRUS

    ICD-10-CM Code For Influenza Due To Unidentified Influenza Virus: Group Overview

    J13-PNEUMONIA-DUE-TO-STREPTOCOCCUS-PNEUMONIAE

    ICD-10-CM Code For Pneumonia Due To Streptococcus Pneumoniae: Group Overview

    J14-PNEUMONIA-DUE-TO-HEMOPHILUS-INFLUENZAE

    ICD-10-CM Code For Pneumonia Due To Hemophilus Influenzae: Group Overview

    J17-PNEUMONIA-IN-DISEASES-CLASSIFIED-ELSEWHERE

    ICD-10-CM Code For Pneumonia In Diseases Classified Elsewhere: Group Overview

    J18-PNEUMONIA-UNSPECIFIED-ORGANISM

    ICD-10-CM Code For Pneumonia Unspecified Organism: 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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