ICD-10-CM > C00-D49 > C30-C39 > C34 > C34.0 C34.0 Malignant neoplasm of main bronchus Non-Billable/Non-Specific Applicable To Malignant neoplasm of carinaMalignant neoplasm of hilus (of lung) Codes C34.00Malignant neoplasm of unspecified main bronchusC34.01Malignant neoplasm of right main bronchusC34.02Malignant neoplasm of left main bronchus