ICD-10-CM > C00-D49 > C30-C39 > C34 > C34.1 C34.1 Malignant neoplasm of upper lobe, bronchus or lung Non-Billable/Non-Specific Codes C34.10Malignant neoplasm of upper lobe, unspecified bronchus or lungC34.11Malignant neoplasm of upper lobe, right bronchus or lungC34.12Malignant neoplasm of upper lobe, left bronchus or lung