CPT® Code 74190

The peritoneogram, identified by CPT® Code 74190, is a specialized radiological procedure designed to visualize the contours and external surfaces of the abdominal viscera and peritoneum. This imaging technique is particularly useful for measuring the wall thickness of various portions of the digestive organs and for detecting the presence and extent of extra-abdominal tumors or diseases. The procedure involves the careful selection of an appropriate site in the abdominal area, where local anesthesia is administered to infiltrate the skin and subcutaneous tissue down to the level of the peritoneum. Utilizing fluoroscopy, which provides real-time X-ray guidance, a needle is inserted into the peritoneum, and a flexible catheter is subsequently threaded into place. Once the catheter is positioned, contrast dye and/or air are injected into the peritoneal space, allowing for enhanced visualization during the imaging process. Additional X-rays are then obtained with the patient in various positions to capture comprehensive images of the abdominal area. At the conclusion of the procedure, the catheter is removed. The CPT® Code 74190 specifically denotes the radiologist's role in supervising the procedure and interpreting the resulting findings, ensuring accurate documentation and reporting of the imaging performed.