CPT code 75803 represents the supervision and interpretation of radiologic imaging of the lymphatic system for both extremities (either bilateral arms or bilateral legs). This code defines a diagnostic imaging professional service focused on evaluation of lymphatic anatomy and function across both sides of a pair of extremities. Nationally, lymphatic imaging is an important tool for diagnosing lymphedema, staging lymphatic disorders, and guiding therapeutic decisions in vascular and oncology care pathways.

Key payers examined include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Coverage and reimbursement policies for bilateral lymphatic imaging supervision and interpretation can affect access to specialized diagnostic evaluations and downstream management plans.

Readers will learn the clinical context for use of CPT code 75803, typical sites of service where it is performed, and which major national payers are relevant to coverage discussions. The publication provides benchmarks and policy-relevant updates where available, clarifies coding scope and appropriate clinical scenarios for application, and situates the code within diagnostic imaging workflows for lymphatic disorders. Data not available in the input will be clearly noted in detailed sections.