2025 CPT code 61850

Twist drill or burr hole(s) for implantation of neurostimulator electrodes, cortical.

Refer to CPT coding guidelines for neurosurgery and nervous system procedures.

Modifiers may be applicable depending on the specific circumstances of the procedure, such as increased procedural services (22), multiple procedures (51), or reduced services (52). Refer to current CPT guidelines for appropriate modifier usage.

Medical necessity must be established for the use of neurostimulator electrodes. This may include documentation of failed medical management, the severity of the condition, and the potential benefits of the procedure.

The surgeon performs the procedure, including incision, burr hole creation, electrode placement, and wound closure. They also ensure correct electrode placement using stimulation.

IMPORTANT For electronic analysis with programming, when performed, of cranial nerve and brain neurostimulator pulse generator/transmitters, see codes 95970, 95976, 95977, 95983, 95984.

In simple words: The surgeon makes small holes in the skull to place electrodes on the surface of the brain. These electrodes are part of a neurostimulator system.

This procedure involves creating one or more burr holes or twist drill holes in the skull to access the brain cortex. The surgeon then implants neurostimulator electrodes onto the cortex.Test stimulation to confirm correct target site placement of the electrode array(s) and/or to confirm the functional status of the system is inherent to placement and is not separately reported. Electronic analysis (95970) at the time of implantation is not separately reported. Microelectrode recording, when performed by the operating surgeon in association with implantation of neurostimulator electrode arrays, is an inclusive service and should not be reported separately. If another individual participates in neurophysiological mapping during a deep brain stimulator implantation procedure, this service may be reported by the second individual with codes 95961-95962.

Example 1: A patient with intractable epilepsy undergoes implantation of neurostimulator electrodes on the cortex to control seizures., A patient with Parkinson's disease undergoes implantation of cortical neurostimulator electrodes as part of a treatment plan., A patient with chronic pain undergoes implantation of cortical neurostimulator electrodes for pain management.

Documentation should include details of the procedure, including the location and number of burr holes, type and placement of electrodes, stimulation results, and any complications. Preoperative imaging and diagnostic reports should also be included.

  • Revenue Code: P1G - MAJOR PROCEDURE - OTHER
  • RVU: 28.18
  • Payment Status: Active
  • Specialties:Neurosurgery
  • Place of Service:Inpatient Hospital, Ambulatory Surgical Center
** Only Enterprise users with EHR integration can access case-specific answers. Click here to request access.