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    v1.0.28
    OpenPayerBilling CodesChronic lower respiratory diseasesICD-10-CM j43-emphysema
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    ICD-10-CM Code For Emphysema: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group J43 includes emphysema subtypes such as panacinar emphysema, centrilobular emphysema, and unspecified emphysema, covering chronic destructive changes in the lung parenchyma. These ICD-10-CM diagnosis codes are used to document clinical scenarios involving chronic airflow limitation, emphysematous structural changes, and their contribution to chronic lower respiratory disease burden. Accurate coding within the ICD-10-CM J43 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM J43: Emphysema Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM J43) emphysema group represents a range of chronic destructive changes in the lung parenchyma characterized by permanent enlargement of airspaces and loss of alveolar walls. These diagnoses target the lower respiratory system and are commonly associated with chronic obstructive pulmonary disease and smoking-related lung injury. Accurate coding matters for complete clinical documentation and appropriate reimbursement because it captures disease subtype and severity that affect treatment and resource use.

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    When to Use

    Use a code from the ICD-10-CM J43 group when clinical evaluation, imaging, or pulmonary function testing documents emphysematous changes contributing to the patients respiratory condition. Select the specific subtype code when the medical record specifies panacinar, centrilobular, or other defined emphysema variants; otherwise, assign the unspecified emphysema code.

    ICD-10-CM Codes

    5 rows

    ICD-10-CM CodeDescription
    J43.0Unilateral pulmonary emphysema [MacLeod's syndrome]
    J43.1Panlobular emphysema
    J43.2Centrilobular emphysema
    J43.8Other emphysema
    J43.9Emphysema, unspecified

    DRG Codes

    3 rows

    DRG CodeDescription
    190Chronic Obstructive Pulmonary Disease with MCC
    191Chronic Obstructive Pulmonary Disease with CC
    192Chronic Obstructive Pulmonary Disease without CC/MCC

    Typical Clinical Scenarios

    • An elderly long‑term smoker with progressive exertional dyspnea and chronic productive cough presents for routine pulmonary follow‑up; pulmonary function testing shows irreversible airflow limitation with radiographic evidence of paraseptal or centrilobular alveolar wall destruction predominantly in the upper lobes, and there is no significant alpha‑1 antitrypsin deficiency identified. A chronic emphysematous process is documented as the primary chronic lower respiratory diagnosis and managed conservatively. Typical codes: J43.9
    • A middle‑aged patient with known alpha‑1 antitrypsin deficiency presents with progressive dyspnea, decreased exercise tolerance, and CT imaging demonstrating panacinar emphysematous changes most pronounced in the lower lobes; the visit focuses on characterization of the underlying emphysema subtype contributing to their chronic respiratory impairment. The emphysema secondary to the genetic condition is coded to capture the panacinar pattern. Typical codes: J43.2
    • An adult who presents to the emergency department with acute worsening shortness of breath and hypoxemia on background of chronic emphysema; chest imaging reveals localized bullous emphysema with a large bleb and concern for secondary pneumothorax or infection complicating the emphysematous lung. The encounter documents the emphysematous change as a comorbid structural lung disease influencing acute management. Typical codes: J43.8, J43.1

    Related Codes

    J40-BRONCHITIS-NOT-SPECIFIED

    ICD-10-CM Code For Bronchitis Not Specified As Acute Or Chronic: Group Overview

    J41-SIMPLE-AND-MUCOPURULENT-CHRONIC-BRONCHITIS

    ICD-10-CM Code For Simple And Mucopurulent Chronic Bronchitis: Group Overview

    J42-UNSPECIFIED-CHRONIC-BRONCHITIS

    ICD-10-CM Code For Unspecified Chronic Bronchitis: Group Overview

    J44-OTHER-CHRONIC-OBSTRUCTIVE-PULMONARY-DISEASE

    ICD-10-CM Code For Other Chronic Obstructive Pulmonary Disease: Group Overview

    J45-ASTHMA

    ICD-10-CM Code For Asthma: Group Overview

    J47-BRONCHIECTASIS

    ICD-10-CM Code For Bronchiectasis: Group Overview

    J4A-CHRONIC-LUNG-ALLOGRAFT-DYSFUNCTION

    ICD-10-CM Code For Chronic Lung Allograft Dysfunction: 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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