Loading...

    Explore
    • Policy Monitoring
    • Live Policy Feed
    • Billing Codes
    • NPI Medicare & Medicaid
    • Healthcare Providers
    • Health Insurance Payers
    • States
    • Service Lines
    • Taxonomy Codes
    Lookup tools
    • Billing Code Lookup
    • CPT Modifier Lookup
    • Provider Taxonomy Code Lookup
    • Healthcare Provider & Facility Lookup
    • Health Insurance Payer Lookup
    • Payer Contact Directory

    Policy & Benchmark Tools

    • Prior Authorization Lookup
    • Coverage Criteria Lookup
    • Timely Filing Lookup
    • Billing Code Reimbursement Rates
    • Payer Comparison Dashboard
    • Facility Comparison Dashboard
    • All tools

    Company

    • About OpenPayer
    • Data Sources
    • Trek Health
    OpenPayerby Trek Health
    LinkedInYouTube

    © 2026 Trek Health. All rights reserved.

    OpenPayer is built and maintained by Trek Health.

    v1.0.28
    OpenPayerBilling CodesMalignant neoplasms of respiratory and intrathoracic organsICD-10-CM c34-malignant-neoplasm-of-bronchus-and-lung
    Ask Trek AI about this page

    ICD-10-CM Code For Malignant Neoplasm Of Bronchus And Lung: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group C34 includes malignant neoplasms of the bronchus and lung, encompassing primary cancers arising in bronchial and pulmonary tissues and specified by site and laterality. These ICD-10-CM diagnosis codes are used to document primary lung cancer diagnoses, tumor location and extent, and related intrathoracic organ involvement to capture clinical severity and staging context. Accurate coding within the ICD-10-CM C34 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

    Customize your policy alerts

    Sign up for ICD-10-CM Code For Malignant Neoplasm Of Bronchus And Lung: Group Overview policy alerts

    Get alerted when relevant policies change without checking for updates manually.

    Monitor payer policy activity

    Receive email alerts as soon as relevant payer policies are published or updated.

    ICD-10-CM C34: Malignant Neoplasm Of Bronchus And Lung Overview

    The diagnoses in this group represent primary malignant tumors of the bronchus and lung, affecting the respiratory and intrathoracic organs. These codes capture tumor location, laterality, and histologic specifics when applicable. Accurate coding guides clinical documentation and supports appropriate reimbursement and case management decisions.

    Table of contents

    Progress1 / 6

    Explore openpayer tools

    • Billing CodesCPT, HCPCS, DRG & more
    • Reimbursement RatesCommercial vs. Medicare rate reports
    • ProvidersHospitals & facilities
    • PayersPlans & market footprint
    • Taxonomy CodesNUCC specialty codes
    • ModifiersCPT modifiers & usage
    • Prior AuthorizationPA policies by payer & drug
    • Timely FilingFiling deadlines by payer
    • Coverage CriteriaMedical necessity by payer
    • Payer ContactsClaims, PA & appeals contacts
    View all tools

    When to Use

    Use a code from this group when a patient has a confirmed diagnosis of primary malignant neoplasm of the bronchus or lung documented in the medical record. Select the code that specifies the exact anatomic site and laterality to reflect clinical detail and support billing and reporting.

    ICD-10-CM Codes

    16 rows

    ICD-10-CM CodeDescription
    C34.00Malignant neoplasm of unspecified main bronchus
    C34.01Malignant neoplasm of right main bronchus
    C34.02Malignant neoplasm of left main bronchus
    C34.10Malignant neoplasm of upper lobe, unspecified bronchus or lung
    C34.11Malignant neoplasm of upper lobe, right bronchus or lung
    C34.12Malignant neoplasm of upper lobe, left bronchus or lung
    C34.2Malignant neoplasm of middle lobe, bronchus or lung
    C34.30Malignant neoplasm of lower lobe, unspecified bronchus or lung
    C34.31Malignant neoplasm of lower lobe, right bronchus or lung
    C34.32Malignant neoplasm of lower lobe, left bronchus or lung
    C34.80Malignant neoplasm of overlapping sites of unspecified bronchus and lung
    C34.81Malignant neoplasm of overlapping sites of right bronchus and lung
    C34.82Malignant neoplasm of overlapping sites of left bronchus and lung
    C34.90Malignant neoplasm of unspecified part of unspecified bronchus or lung
    C34.91Malignant neoplasm of unspecified part of right bronchus or lung
    C34.92Malignant neoplasm of unspecified part of left bronchus or lung

    DRG Codes

    3 rows

    DRG CodeDescription
    180Respiratory Neoplasms with MCC
    181Respiratory Neoplasms with CC
    182Respiratory Neoplasms without CC/MCC

    Typical Clinical Scenarios

    • An older current or former heavy smoker presents to the emergency department with several weeks of progressive cough, unintentional weight loss, hemoptysis, and new-onset dyspnea. Imaging (chest CT) reveals a dominant mass in the right upper lobe with enlarged ipsilateral hilar lymph nodes; bronchoscopy with biopsy confirms primary bronchogenic carcinoma localized to the right upper lobe. A code specifying the primary site of the lung tumor is assigned. Typical codes: C34.11, C34.12
    • A middle-aged patient with chronic respiratory symptoms is seen in pulmonary clinic for staging and treatment planning after incidental detection of a left lower lobe mass on routine chest X-ray; PET-CT shows a localized lesion without distant metastasis and biopsy confirms non-small cell lung cancer of the left lower lobe. This outpatient encounter documents a known malignant neoplasm of the specific lung lobe for ongoing oncologic management, so a code identifying the left lower lobe is used. Typical codes: C34.32, C34.31
    • An inpatient with a history of centrally located lung cancer presents with acute respiratory failure and post-obstructive pneumonia due to tumor occlusion of a major bronchus; care focuses on treating infection and respiratory compromise while documenting the underlying malignant lesion causing the complication. The hospitalization record assigns a code for the primary bronchus or lung malignancy as the underlying condition contributing to the acute complication. Typical codes: C34.0, C34.10, C34.80

    Related Codes

    C30-MALIGNANT-NEOPLASM-NASAL-CAVITY-MIDDLE-EAR

    ICD-10-CM Code For Malignant Neoplasm Of Nasal Cavity And Middle Ear: Group Overview

    C31-MALIGNANT-NEOPLASM-ACCESSORY-SINUSES

    ICD-10-CM Code For Malignant Neoplasm Of Accessory Sinuses: Group Overview

    C32-MALIGNANT-NEOPLASM-OF-LARYNX

    ICD-10-CM Code For Malignant Neoplasm Of Larynx: Group Overview

    C33-MALIGNANT-NEOPLASM-OF-TRACHEA

    ICD-10-CM Code For Malignant Neoplasm Of Trachea: Group Overview

    C37-MALIGNANT-NEOPLASM-OF-THYMUS

    ICD-10-CM Code For Malignant Neoplasm Of Thymus: Group Overview

    C38-MALIGNANT-NEOPLASM-HEART-MEDIASTINUM-PLEURA

    ICD-10-CM Code For Malignant Neoplasm Of Heart Mediastinum And Pleura: Group Overview

    C39-MALIGNANT-NEOPLASM-OTHER-ILL-DEFINED-SITES

    ICD-10-CM Code For Malignant Neoplasm Of Other And Ill-Defined Sites In The Respiratory System And Intrathoracic Organs: 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.
    Published by

    Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.