CPT code 36513 represents therapeutic platelet apheresis, a procedure that selectively removes platelets from a patient’s blood and returns the remaining components. This service is clinically important for management of disorders where platelet reduction is required, including certain thrombotic, hematologic, and immune-mediated conditions. Nationally, plateletpheresis is performed in hospital outpatient departments, inpatient settings, and dedicated apheresis centers where specialized machines and trained staff are available.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for platelet apheresis, typical sites of service, and commonly reported billing modifiers. The publication summarizes reimbursement benchmarks and coverage considerations among major national payers, highlights relevant coding practice for reporting CPT code 36513, and notes areas where policy updates or payer variations commonly affect claims processing. Clinical teams, billing professionals, and policy analysts will gain practical insight into how this procedure is described in claims, typical service settings, and the payer landscape relevant to national reimbursement and coverage practice.