CPT® Code 49320

Laparoscopy, abdomen, peritoneum, and omentum, diagnostic, with or without collection of specimen(s) by brushing or washing (separate procedure)

The procedure described by CPT® Code 49320 refers to a diagnostic laparoscopy of the abdomen, specifically targeting the peritoneum and omentum. This minimally invasive surgical technique involves the insertion of a laparoscope, which is a thin, lighted tube equipped with a camera, through a small incision near the umbilicus (belly button). The primary goal of this procedure is to visually inspect the abdominal cavity for any signs of malignancy, disease, or injury. During the procedure, a pneumoperitoneum is established, which means that air is insufflated into the abdominal cavity to create a working space for the surgeon to operate. In addition to visual inspection, the procedure allows for the collection of tissue samples, which can be obtained through two methods: brushing or washing. A biopsy brush can be introduced through the laparoscope to collect cell samples directly from the surface of the peritoneum or omentum. Alternatively, a small amount of sterile saline can be instilled into the abdominal cavity, and then aspirated to collect cells, a method known as washing. These collected samples are crucial for further cytological evaluation in a laboratory setting, where they can be analyzed for any pathological conditions. After the inspection and any necessary sample collection, the instruments are carefully withdrawn, and pressure is applied to the abdomen to expel any residual air. Finally, the small incisions made for the procedure are closed, completing the diagnostic laparoscopy.