CPT code 32124 represents a thoracotomy performed with pneumonolysis — an open surgical chest incision to separate an adherent lung from the pleura. This thoracic surgical procedure is clinically significant for patients with pleural adhesions that limit lung expansion, and it carries implications for operative planning, resource use, and postoperative care across hospitals nationwide. Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise interpretation of what the code covers, the typical clinical context and site of service, and which payers commonly adjudicate claims for this service. The publication also summarizes benchmark considerations, relevant coding relationships, and policy updates that affect coverage and billing practice. Where available, comparative benchmarks on utilization and reimbursement patterns are presented alongside practical notes on documentation elements that support the code assignment. Data not available in the input is noted explicitly in sections where specifics—such as associated taxonomies, ICD-10 pairings, or payer-specific reimbursement rates—are required but not provided.