C34.0
ICD-10Non-billable categoryMalignant neoplasm of main bronchus
Official ICD-10-CM descriptor (FY2026)
Malignant neoplasm of main bronchus
C34.0 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- Malignant neoplasm of carina
- Malignant neoplasm of hilus (of lung)
ICD-10-CM FY2026 defines 3 codes beneath C34.0. See the ICD-10-CM index for what this site publishes.
Related codes in C34
- C34.1Malignant neoplasm of upper lobe, bronchus or lungcategory
- C34.2Malignant neoplasm of middle lobe, bronchus or lung
- C34.3Malignant neoplasm of lower lobe, bronchus or lungcategory
- C34.8Malignant neoplasm of overlapping sites of bronchus and lungcategory
- C34.9Malignant neoplasm of unspecified part of bronchus or lungcategory
Where this code sits
- Chapter
- 2. Neoplasms (C00-D49)
- Parent code
- C34
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.