CPT® Code 64590

Insertion or replacement of peripheral, sacral, or gastric neurostimulator pulse generator or receiver, requiring pocket creation and connection between electrode array and pulse generator or receiver

The CPT® Code 64590 refers to the procedure involving the insertion or replacement of a neurostimulator pulse generator or receiver that is peripheral, sacral, or gastric in nature. This procedure is essential for patients requiring nerve stimulation therapy, which is utilized to manage various medical conditions. The neurostimulator generates electrical impulses that are delivered to specific electrodes implanted in the body, targeting areas such as the bladder, bowel, or stomach. For instance, a gastric neurostimulator is specifically designed to deliver mild electrical impulses to the antrum of the stomach, aiding in the treatment of gastroparesis, a condition characterized by delayed gastric emptying. Similarly, sacral neurostimulators are employed to restore normal bladder or bowel function by sending electrical impulses to the sacral nerves. Peripheral nerve stimulation is directed towards specific areas to alleviate chronic pain. During the procedure described by CPT® Code 64590, a surgical incision is made at the site where the neurostimulator will be inserted, typically in the lower abdomen or lower back. A subcutaneous pocket is created to house the pulse generator or receiver. The electrodes, which are usually implanted in a separate procedure, are then connected to the new generator or receiver, and the system is tested to ensure proper functionality. The stimulation parameters are adjusted as necessary before the device is securely placed in the pocket and the incision is closed with sutures. In cases where a replacement is needed, the existing generator or receiver is first removed through a similar incision, followed by the connection of the new device to the electrodes. This procedure is critical for maintaining the effectiveness of neurostimulation therapy and ensuring that patients continue to receive the necessary treatment for their conditions.