CPT code 43635 denotes a surgical procedure that transects the vagus nerve and removes the distal portion of the stomach. This operation is performed for specific clinical indications that require both vagal denervation and partial gastrectomy. Nationally, procedures like this are significant due to their implications for complex surgical care, perioperative resource use, and surgical coding accuracy.

Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for the procedure, typical sites of service, and the payer landscape relevant to billing and claims adjudication. The publication summarizes benchmark considerations, common modifiers associated with surgical services, and policy or coverage factors that commonly affect reimbursement and prior authorization for complex gastric surgery.

This summary equips payers, coding professionals, and surgical administrators with a clear understanding of what CPT code 43635 represents, why accurate coding matters for claims processing, and what types of documentation and clinical context are typically relevant. Data not available in the input are noted where applicable.