CPT code 76641 represents a complete diagnostic ultrasound examination of one breast, including documentation of imaging. This code is used nationally to report comprehensive unilateral breast ultrasound studies performed for evaluation of breast symptoms, focal findings on other imaging, or surveillance in clinical contexts where ultrasound is indicated. Accurate reporting of 76641 supports appropriate clinical communication and claims processing for breast imaging services.

Analysis covers major national payers and public programs: Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines how coverage and payment may vary across payers, common billing considerations, and performance benchmarks where available.

Readers will learn: the clinical scope of the code and typical sites of service; payer coverage landscape and billing practices; typical modifiers and coding considerations (listed separately); and practical context for interpreting utilization and reimbursement trends. Where specific data elements were not provided in the input, the text notes that those elements are not available. The focus is national policy and billing context rather than provider recommendations.