CPT code 64718 denotes an open ulnar nerve decompression at the elbow — an operative release of scar tissue or other compressive elements to relieve tension on the ulnar nerve. Nationally, this procedure is clinically significant because ulnar neuropathy at the elbow is a common cause of hand and forearm dysfunction and often requires surgical intervention after conservative care fails. Payers manage coverage and utilization for this procedure across outpatient surgical settings, focusing on indications, prior authorization, and site-of-service considerations.

Key payers included in the coverage landscape are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical intent and typical sites of service, plus guidance on common billing modifiers and coding relationships where available. The publication outlines benchmarks for utilization and reimbursement patterns, summarizes relevant policy trends affecting prior authorization and outpatient surgery authorization, and situates the procedure within clinical care pathways for ulnar neuropathy. This summary is written for a national audience and is intended to inform billing professionals, surgical practices, and payer policy analysts about the role and administrative considerations surrounding CPT code 64718.