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    v1.0.28
    OpenPayerBilling CodesLung diseases due to external agentsICD-10-CM j70-respiratory-conditions-due-to-other-external-agents
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    ICD-10-CM Code For Respiratory Conditions Due To Other External Agents: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group J70 includes respiratory conditions caused by external agents such as gases, fumes, drugs, or chemical vapors that result in inflammatory, toxic, or fibrotic lung disease. These ICD-10-CM diagnosis codes are used to document exposure-related pulmonary injury, capturing severity, organ involvement, and complications like acute respiratory failure or chronic fibrosis. Accurate coding within the ICD-10-CM J70 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM J70: Respiratory Conditions Due To Other External Agents Overview

    This group includes lung diseases caused by external agents such as therapeutic gases, chemicals, and other substances that produce inflammatory or fibrotic reactions in the respiratory system. It targets pulmonary conditions resulting from inhalation or exposure-related injury to the lungs and airways. Accurate coding is important to reflect the cause, severity, and clinical complexity for proper documentation and reimbursement.

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    When to Use

    Use a code from this group when clinical documentation attributes respiratory symptoms or lung disease to exposure to an external agent, such as therapeutic gases, chemicals, or inhaled toxins. Select the code that reflects the documented etiology, specific agent when known, and severity or complications like respiratory failure.

    ICD-10-CM Codes

    8 rows

    ICD-10-CM CodeDescription
    J70.0Acute pulmonary manifestations due to radiation
    J70.1Chronic and other pulmonary manifestations due to radiation
    J70.2Acute drug-induced interstitial lung disorders
    J70.3Chronic drug-induced interstitial lung disorders
    J70.4Drug-induced interstitial lung disorders, unspecified
    J70.5Respiratory conditions due to smoke inhalation
    J70.8Respiratory conditions due to other specified external agents
    J70.9Respiratory conditions due to unspecified external agent

    DRG Codes

    10 rows

    DRG CodeDescription
    196Interstitial Lung Disease with MCC
    197Interstitial Lung Disease with CC
    198Interstitial Lung Disease without CC/MCC
    205Other Respiratory System Diagnoses with MCC
    206Other Respiratory System Diagnoses without MCC
    791Prematurity with Major Problems
    793Full Term Neonate with Major Problems
    928Full Thickness Burn with Skin Graft or Inhalation Injury with CC/MCC
    929Full Thickness Burn with Skin Graft or Inhalation Injury without CC/MCC
    934Full Thickness Burn without Skin Graft or Inhalation Injury

    Typical Clinical Scenarios

    • An adult worker presents to the emergency department with acute shortness of breath, cough, fever, and hypoxemia after an industrial accident involving inhalation of smoke and chemical fumes. Imaging shows diffuse bilateral pulmonary infiltrates consistent with acute chemical pneumonitis, and management focuses on airway support and removal from exposure; a code from this group is assigned for lung injury due to inhaled toxic substances. Typical codes: J70.0, J70.4
    • A middle-aged patient with a history of prolonged therapeutic oxygen therapy and mechanical ventilation following severe pneumonia develops progressive dyspnea and radiographic evidence of pulmonary fibrosis and chronic lung changes attributed to long-term inhalation of therapeutic gases and ventilator-related injury. The chronic respiratory impairment from medical gases or therapeutic inhalation devices is documented as the cause, warranting a code for lung disease due to medical gases or ventilator gases. Typical codes: J70.1, J70.3
    • A hospitalized immunocompromised patient receiving chemotherapy develops worsening respiratory status with bilateral infiltrates after documented exposure to nitrofurantoin for a urinary infection; clinicians diagnose drug-induced interstitial lung disease as the likely etiology of the pulmonary decline and list a related external agent–induced lung disease as a comorbidity. Typical codes: J70.2, J70.8

    Related Codes

    J60-COALWORKERS-PNEUMOCONIOSIS

    ICD-10-CM Code For Coalworker's Pneumoconiosis: Group Overview

    J61-PNEUMOCONIOSIS-DUE-TO-ASBESTOS

    ICD-10-CM Code For Pneumoconiosis Due To Asbestos And Other Mineral Fibers: Group Overview

    J62-PNEUMOCONIOSIS-DUE-TO-SILICA

    ICD-10-CM Code For Pneumoconiosis Due To Dust Containing Silica: Group Overview

    J63-PNEUMOCONIOSIS-DUE-TO-OTHER-INORGANIC-DUSTS

    ICD-10-CM Code For Pneumoconiosis Due To Other Inorganic Dusts: Group Overview

    J64-UNSPECIFIED-PNEUMOCONIOSIS

    ICD-10-CM Code For Unspecified Pneumoconiosis: Group Overview

    J65-PNEUMOCONIOSIS-ASSOCIATED-WITH-TUBERCULOSIS

    ICD-10-CM Code For Pneumoconiosis Associated With Tuberculosis: Group Overview

    J66-AIRWAY-DISEASE-DUE-TO-SPECIFIC-ORGANIC-DUST

    ICD-10-CM Code For Airway Disease Due To Specific Organic Dust: Group Overview

    J67-HYPERSENSITIVITY-PNEUMONITIS-DUE-TO-ORGANIC-DUST

    ICD-10-CM Code For Hypersensitivity Pneumonitis Due To Organic Dust: Group Overview

    J68-RESPIRATORY-CONDITIONS-DUE-TO-INHALATION

    ICD-10-CM Code For Respiratory Conditions Due To Inhalation Of Chemicals Gases Fumes And Vapors: Group Overview

    J69-PNEUMONITIS-DUE-TO-SOLIDS-AND-LIQUIDS

    ICD-10-CM Code For Pneumonitis Due To Solids And Liquids: 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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