CPT code 64837 designates an add-on surgical service for repair of an additional nerve with sutures performed during the same operative session as an initial hand or foot nerve repair. It is reported in conjunction with the primary nerve repair code and communicates that a second (or subsequent) nerve was repaired during the same procedure. Nationally, correct reporting of add-on codes like 64837 matters for accurate clinical documentation, claims processing, and aggregate procedure counts used in policy and utilization reviews.

Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare and Medicare. Readers will find a concise explanation of the code’s clinical context, its role as an add-on to primary hand and foot nerve repairs, and common billing considerations. The publication outlines typical sites of service, summarizes payer coverage scope, and provides benchmarking and coding guidance relevant to revenue cycle and compliance teams.

The piece also highlights where input data was not provided and directs readers to primary coding sources for verification. This resource is intended for clinicians, coding professionals, and policy analysts seeking a national-level overview of CPT code 64837.