CPT® Code 61020

Ventricular puncture through previous burr hole, fontanelle, suture, or implanted ventricular catheter/reservoir; without injection

A ventricular puncture is a medical procedure that involves accessing the ventricles of the brain through a previously established entry point, such as a burr hole, fontanelle, suture, or an implanted ventricular catheter or reservoir. This specific procedure, identified by CPT® Code 61020, is performed without the injection of any substances. The process begins with the preparation of the scalp, which may involve cutting hair or shaving the area over the intended puncture site to ensure a sterile environment. If the puncture is made through a previous burr hole, fontanelle, or suture, a spinal needle is carefully advanced through the skin and into the ventricle. Once the needle is in place, the stylet is removed to allow for the drainage of cerebrospinal fluid (CSF) and any blood present. After the desired amount of fluid is drained, the stylet is reinserted, the needle is withdrawn, and a dressing is applied to the puncture site to promote healing and prevent infection. In cases where the puncture is performed through an implanted ventricular catheter or reservoir, the needle is inserted at a specific angle (30 to 45 degrees) into the reservoir bladder, allowing for the drainage of CSF and blood. As the intracranial pressure decreases, the flow rate of the fluid will slow down. Once sufficient pressure reduction is achieved, the needle is removed, and firm pressure is applied to the puncture site until the drainage has completely stopped. It is important to note that if the procedure involves the injection of medication or other substances, CPT® Code 61026 should be used instead, which includes additional steps for the instillation of substances for diagnostic or therapeutic purposes.