CPT code 43501 represents an open surgical gastric hemostasis procedure—an incision through the abdomen into the stomach with ligation of a bleeding vessel to control active intragastric hemorrhage. This code is clinically significant because it documents a definitive operative intervention for potentially life‑threatening gastrointestinal bleeding and is associated with inpatient surgical care, resource-intensive operative and postoperative management, and acute reimbursement considerations.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the codes clinical context and where the procedure is commonly performed, along with benchmarking and policy-relevant guidance on how this service is typically classified across major payers. The publication outlines expected sites of service, common modifiers used with this surgical code, and the elements that commonly affect claims processing and reimbursement. It also highlights coding relationships and clinical scenarios that prompt use of this code.

The goal is to equip coding, billing, and clinical teams with a clear national-level summary of CPT code 43501, its clinical purpose, and operational implications for claims and utilization tracking. Data not available in the input will be noted where applicable.