CPT code 32408 identifies an image-guided core needle biopsy of the lung or mediastinum used to obtain tissue for diagnosis, frequently for suspected malignancy. This procedure is clinically important because it provides histologic diagnosis that guides oncology, thoracic surgery, and pulmonary care, and it affects downstream treatment planning and resource use across the health system. Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical context, typical sites of service, and common billing modifiers; national benchmarks for utilization and payment patterns where available; and discussion of coding and documentation considerations that influence coverage and claims processing. The summary highlights elements that impact authorization and claim adjudication, such as inclusion of imaging guidance in the code description, and notes where input data were not provided. Data not available in the input will be identified as such in the detailed sections.