CPT code 47146 codes for the surgical attachment of a vein graft to a vein segment on a liver graft to provide a single, suitably long vein for anastomosis to the recipient’s vein. This procedure is a component of liver transplantation and graft preparation and has implications for operative planning, supply utilization, and billing clarity across transplant centers nationwide. National attention to accurate coding for transplant-related surgical components supports appropriate payment, quality reporting, and resource tracking.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The review outlines typical clinical context for the code, site-of-service expectations, and common procedural modifiers used in billing practice. Readers will find benchmarks and practical guidance on documentation elements that support use of this code, an overview of payer coverage considerations, and summaries of relevant policy updates where available. The publication also situates 47146 within related procedural coding to aid clinical coders and revenue professionals in ensuring consistent reporting.

Data not available in the input for associated taxonomies, ICD-10 diagnoses, and payer-specific contract language is noted where applicable.