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Official Description

Insertion by physician or other qualified health care professional of sphenoidal electrodes for electroencephalographic (EEG) recording

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 95830 involves the insertion of sphenoidal electrodes by a physician or other qualified healthcare professional for the purpose of electroencephalographic (EEG) recording. This technique is specifically utilized to monitor electrical activity in the brain, particularly in the temporal lobe, which is often associated with seizure disorders. The placement of these electrodes is critical for capturing accurate EEG data, which can aid in diagnosing and managing conditions such as epilepsy. The procedure requires careful preparation, including antiseptic cleaning of the skin and the administration of a local anesthetic to minimize discomfort. The use of X-ray guidance ensures precise placement of the electrodes, which are inserted into the soft tissues at the base of the skull. This meticulous approach is essential for obtaining reliable EEG recordings, which are subsequently analyzed to assess brain function and identify any abnormal electrical activity. After the recording is completed, the electrodes are removed, concluding the procedure.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The insertion of sphenoidal electrodes for EEG recording is indicated in specific clinical scenarios, particularly for patients experiencing seizure disorders. The following conditions may warrant this procedure:

  • Seizure Disorders Patients with a history of seizures may require detailed monitoring of brain activity to identify seizure types and triggers.
  • Epilepsy Individuals diagnosed with epilepsy may undergo this procedure to obtain precise EEG readings that can assist in treatment planning.
  • Unexplained Neurological Symptoms Patients presenting with unexplained neurological symptoms may benefit from this procedure to rule out or confirm seizure activity.

2. Procedure

The procedure for the insertion of sphenoidal electrodes involves several critical steps to ensure accurate placement and effective EEG recording. The following steps outline the process:

  • Step 1: Patient Preparation The patient is positioned supine, lying on their back, to facilitate access to the facial area where the electrodes will be inserted. The skin on one side of the face is thoroughly cleaned with an antiseptic solution to minimize the risk of infection.
  • Step 2: Anesthesia Administration A local anesthetic is injected into the deeper tissues of the face to ensure that the patient experiences minimal discomfort during the procedure. This step is crucial for patient comfort and cooperation.
  • Step 3: Electrode Insertion Utilizing X-ray guidance, a needle equipped with an electrode is carefully inserted into the soft tissues located at the base of the skull, just beneath the temporal lobe of the brain. This precise placement is essential for capturing accurate EEG data.
  • Step 4: Electrode Securing Once the needle is in position, it is removed, leaving the electrode in place. The electrode is then secured using tape and a bandage to ensure stability during the EEG recording.
  • Step 5: Bilateral Electrode Placement The same procedure is repeated on the opposite side of the face to allow for comprehensive monitoring of both temporal lobes, enhancing the quality of the EEG data collected.
  • Step 6: Verification of Placement X-ray images are obtained to confirm the correct placement of the electrodes, ensuring that they are positioned accurately for optimal recording.
  • Step 7: EEG Recording A separately reportable EEG recording is conducted to capture the electrical activity of the brain. This data is critical for diagnosing and managing the patient's condition.
  • Step 8: Electrode Removal Upon completion of the EEG recording, the sphenoidal electrodes are carefully removed, concluding the procedure.

3. Post-Procedure

After the procedure, patients may be monitored for any immediate adverse effects related to the electrode insertion. It is important to observe the insertion sites for signs of infection or unusual swelling. Patients may be advised to avoid strenuous activities for a short period following the procedure to ensure proper healing. The results of the EEG recording will be analyzed by a qualified healthcare professional, and follow-up appointments may be scheduled to discuss findings and potential treatment options based on the results.

Short Descr INSERT ELECTRODES FOR EEG
Medium Descr INSERTION SPHENOIDAL ELECTRODES EEG PHYS/QHP
Long Descr Insertion by physician or other qualified health care professional of sphenoidal electrodes for electroencephalographic (EEG) recording
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 0 - No payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Code Not Recognized by OPPS when submitted on Outpatient Hospital Part B Bill Type (12x/13x)
Type of Service (TOS) 5 - Diagnostic Laboratory
Berenson-Eggers TOS (BETOS) P6C - Minor procedures - other (Medicare fee schedule)
MUE 1
CCS Clinical Classification 199 - Electroencephalogram (EEG)
Date
Action
Notes
2013-01-01 Changed Description Changed
2011-01-01 Changed Medium description changed.
Pre-1990 Added Code added.
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