CPT code 49189 describes an open surgical procedure to excise or destroy one or more tumors or cysts in the abdomen where the combined maximum length of lesions is 20.1 to 30 cm. This code matters nationally because it captures higher-complexity abdominal tumor resections that influence surgical resource use, inpatient utilization, and reimbursement policy for complex general surgery cases. Payers typically adjudicate claims for such procedures across both commercial and public programs, with major payers including Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

This publication provides a concise reference for clinicians, coding professionals, and policy analysts. Readers will find: an explanation of the clinical service represented by the code; typical sites of service; common modifiers and coding context where available; and the types of benchmarks and billing considerations that are relevant for national payers. When data elements were not provided in the source input, the document notes that those items are not available. The focus is on clear clinical and billing identification rather than payer-specific reimbursement guidance.