CPT® Code 47370

The procedure described by CPT® Code 47370 involves laparoscopic surgical ablation of one or more liver tumors using radiofrequency energy. This minimally invasive technique begins with the creation of a small incision near the umbilicus, through which a trocar is inserted to establish pneumoperitoneum, allowing for the inflation of the abdominal cavity. Additional incisions are made in the upper and lower quadrants of the abdomen to facilitate the insertion of more trocars, which provide access for surgical instruments and visualization. The surgeon inspects the abdominal cavity for any extrahepatic tumors or abnormalities and addresses any adhesions through blunt and sharp dissection. The liver is then mobilized, and all eight hepatic segments are thoroughly examined to locate the tumors. In this procedure, ultrasound imaging, which is reported separately, is utilized to guide the placement of a radiofrequency needle electrode directly into the center of each tumor. The radiofrequency energy is applied to heat the tumor to a specific temperature, which is maintained for a predetermined duration to ensure effective ablation. After the heating cycle, the tissue is allowed to cool while the surgical team monitors the site to confirm that the entire tumor, along with a margin of healthy tissue, has been adequately destroyed. The electrode may be repositioned within the tumor to ensure complete necrosis. This process is repeated for any additional tumors present until all targeted tumors have been successfully ablated. The procedure concludes with the release of gas from the abdomen, removal of the laparoscope and surgical instruments, and closure of the portal incisions.