CPT code 32852 represents a single-lung transplant procedure performed with cardiopulmonary bypass. This high-acuity, resource-intensive surgical service is central to advanced thoracic surgical programs and transplant centers, with substantial implications for inpatient surgical capacity, critical care resources, and payer coverage policies nationwide. Key national payers commonly involved in covering this service include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical and operational context for this code, including typical site-of-service expectations, common modifiers used in billing, and the payer landscape relevant to reimbursement and authorization processes. The publication also summarizes benchmarks and policy topics that influence coverage and payment for lung transplantation, highlights coding considerations that affect claims processing, and outlines areas where payers and providers commonly focus prior authorization and medical necessity review. Data not available in the input is clearly noted where applicable, and the content is presented for a national audience rather than any specific jurisdiction.