CPT® Code 43881

The procedure described by CPT® Code 43881 involves the implantation or replacement of gastric neurostimulator electrodes specifically within the antrum of the stomach. This intervention is primarily indicated for patients suffering from medically refractory gastroparesis, a condition characterized by delayed gastric emptying that does not respond to conventional treatments. Commonly referred to as a gastric pacemaker, this device aims to alleviate debilitating symptoms associated with gastroparesis, such as severe vomiting and nausea, by providing electrical stimulation to the stomach's nerves. The implantation process entails creating a subcutaneous pocket in the abdominal wall, typically beneath the rib cage, where the neurostimulator or generator component of the device is placed. Additionally, two intramuscular lead wires equipped with electrodes are inserted into the muscle wall of the stomach antrum. These electrodes deliver continuous high-frequency, low-energy electrical impulses, which promote gastric contractions and enhance the overall function of the stomach. This procedure is coded as 43881 for the initial implantation or replacement of the gastric neurostimulator electrodes, while code 43882 is designated for open revision or removal of previously placed electrodes.