CPT code 58950 denotes an open abdominal debulking procedure for ovarian, tubal, or primary peritoneal malignancy that includes removal of the fallopian tubes, ovaries, and omentum. As a major gynecologic oncology operation, this code represents a high-complexity surgical service with significant implications for perioperative care, hospital resource use, and oncology care pathways nationwide. Coverage and payment for this procedure affect hospital surgical scheduling, oncology program capacity, and patient financial responsibility across major national payers. Key payers addressed 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 service, payer coverage patterns, common billing modifiers observed with major abdominal oncologic surgery, and benchmarking guidance for coding and claims submission. The publication also summarizes typical sites of service and operational considerations relevant to hospitals and surgical teams. Data not available in the input is noted where applicable.