CPT code 45905 denotes manual dilation of an anal canal stricture performed with the patient under anesthesia other than local anesthetic. Nationally, this code captures a focused, low- to moderate-complexity surgical intervention used to relieve obstructive symptoms from anal strictures and avoid more extensive reconstructive procedures. It is relevant across ambulatory surgical centers and hospital operating rooms where regional or general anesthesia is available.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for the procedure, expected settings of care, and the payer landscape. The publication outlines common billing considerations, typical sites of service, and how this code is positioned relative to related surgical interventions. It also summarizes benchmarks and policy updates where available and highlights areas where practice patterns or payer policies commonly affect utilization and documentation.

This summary serves clinicians, coding professionals, and policy analysts who need a clear, national-level reference for CPT code 45905, its clinical purpose, and the payer environment that commonly governs coverage and billing for manual anal canal dilation under anesthesia.