CPT code 25066 denotes an excisional biopsy of suspicious subfascial or intramuscular soft tissue in the forearm or wrist, with tissue submitted for laboratory analysis. Nationally, this code captures diagnostic surgical management of deep soft-tissue masses in the distal upper extremity and informs reimbursement, coding compliance, and clinical documentation practices for surgeons and health systems. It is commonly billed for procedures performed in ambulatory surgical centers and hospital operating rooms and is relevant to specialties managing soft-tissue tumors, such as orthopedic surgery, hand surgery, and general surgery.

Key payers in typical analyses include Aetna, Blue Cross Blue Shield plans, Cigna Health, UnitedHealthcare, and Medicare. Readers will learn how the code is used clinically, the typical sites of service, and where to focus documentation to support medical necessity and accurate coding. The publication also outlines common benchmarking topics and policy considerations that affect billing and reimbursement for deep soft-tissue biopsies of the forearm and wrist. Data not available in the input will be noted where applicable.