CPT code 38745 represents a complete axillary lymph node dissection, involving removal of all lymph nodes in the axilla below the axillary vein, including deep nodes beneath muscle. This procedure is a key component of surgical management for cancers of the breast and chest when comprehensive nodal clearance is indicated. Nationally, the code matters because it captures a high-complexity surgical service with implications for hospital resource use, perioperative care pathways, and oncology treatment planning.

Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for when complete axillary dissection is performed, typical settings of care (hospital OR or ambulatory surgical center), and the procedural scope captured by the code. The publication summarizes common billing modifiers associated with the code and highlights benchmarking considerations and coding policy updates relevant to inpatient and outpatient surgical oncology services.

This resource is intended to help billing managers, surgical teams, and compliance staff understand what CPT code 38745 denotes, how it fits into surgical cancer care, and where to look for payer-specific policies and documentation expectations. Data not available in the input is noted where applicable.