CPT® Code 63740

The procedure described by CPT® Code 63740 involves the creation of a shunt that facilitates the diversion of cerebrospinal fluid (CSF) from the lumbar subarachnoid space to another body cavity, such as the peritoneal or pleural cavity. This surgical intervention is primarily indicated for the treatment of communicating hydrocephalus, a condition characterized by an accumulation of CSF that can lead to increased intracranial pressure and various neurological symptoms. The procedure begins with a laminectomy, which is a surgical technique that involves the removal of a portion of the vertebral bone (the lamina) to expose the spinal cord and the surrounding structures. Once the spinal cord is accessed, a catheter is placed into the subarachnoid space, allowing for the drainage of CSF. The shunt is then tunneled from the laminectomy site to the designated termination site, ensuring that the CSF can be effectively redirected to alleviate pressure and prevent complications associated with hydrocephalus. This procedure is critical in managing conditions that require the regulation of CSF flow and pressure within the central nervous system.