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Code deleted. To report all night EEG recording, see 95705, 95706, 95707, 95711, 95712, 95713, 95717, 95718

Official Description

Electroencephalogram (EEG); all night recording

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

An all night electroencephalogram (EEG) recording is a diagnostic procedure that involves monitoring the electrical activity of the brain over an extended period, typically throughout the night. This test is crucial for identifying various neurological conditions. An EEG is particularly useful in diagnosing seizure disorders, as it can capture abnormal electrical discharges that occur during seizures. Additionally, it helps determine the underlying causes of confusion, investigate episodes of unconsciousness, and evaluate head injuries. The procedure can also identify other brain-related issues, such as tumors, infections, degenerative diseases, or metabolic disturbances. Furthermore, an all night EEG is instrumental in assessing sleep disorders, as certain types of abnormal brain activity can only be detected while the patient is asleep. The recording process begins at the patient's usual bedtime and continues until they wake up in the morning, allowing for a comprehensive analysis of brain activity during sleep. To conduct the EEG, a trained technician applies sixteen or more electrodes to specific locations on the scalp using a conductive sticky paste. These electrodes are connected to an amplifier and recording device, which captures the brain's electrical signals throughout the night. After the recording is complete, a physician reviews the data and provides a detailed written interpretation of the findings, which is essential for guiding further medical evaluation and treatment.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The all night electroencephalogram (EEG) is performed for several specific indications, which include:

  • Diagnosis of Seizure Disorder - The EEG is utilized to identify abnormal electrical activity in the brain that may indicate the presence of seizures.
  • Determination of Cause of Confusion - This procedure helps in understanding the underlying reasons for a patient's confusion, which may be related to neurological issues.
  • Investigation of Periods of Unconsciousness - An EEG can assist in evaluating episodes where a patient has lost consciousness, helping to pinpoint potential neurological causes.
  • Evaluation of Head Injury - Following a head injury, an EEG may be conducted to assess any resultant changes in brain activity.
  • Identification of Other Brain Conditions - The EEG is also used to detect various conditions affecting the brain, such as tumors, infections, degenerative diseases, or metabolic disturbances.
  • Evaluation of Sleep Disorders - The all night EEG is particularly effective in assessing sleep disorders, as it captures brain activity during sleep.

2. Procedure

The procedure for conducting an all night electroencephalogram (EEG) involves several key steps, which are outlined as follows:

  • Preparation of the Patient - Prior to the EEG, the patient is prepared by ensuring that their scalp is clean and free of any hair products that may interfere with electrode placement. The technician explains the procedure to the patient, addressing any questions or concerns they may have.
  • Application of Electrodes - The technician applies sixteen or more electrodes to specific locations on the patient's scalp. These electrodes are affixed using a conductive sticky paste to ensure optimal contact for accurate readings. The placement of electrodes follows standardized positions to capture comprehensive brain activity.
  • Connection to Recording Equipment - Once the electrodes are in place, they are connected by wires to an amplifier and a recording machine. This equipment is essential for amplifying the electrical signals generated by the brain and for recording them for analysis.
  • Activation of the Recording Device - The recording device is activated at the patient's usual bedtime. It continuously records the electrical activity of the brain throughout the night, capturing data during different sleep stages.
  • Monitoring During Sleep - The technician may monitor the patient during the night to ensure that the equipment is functioning correctly and to address any issues that may arise. The recording continues until the patient wakes up in the morning.
  • Review and Interpretation - After the recording is complete, the physician reviews the EEG data. They analyze the recorded brain activity and provide a written interpretation of the results, which is crucial for diagnosing any underlying conditions.

3. Post-Procedure

After the all night EEG procedure, the patient may resume their normal activities immediately. There are typically no specific post-procedure care instructions, as the procedure is non-invasive and does not require recovery time. However, the patient may be advised to wash their hair to remove any residual paste used for electrode application. The physician will review the recorded data and provide a detailed interpretation, which may take some time to process. Patients should follow up with their healthcare provider to discuss the results and any further steps that may be necessary based on the findings of the EEG.

Short Descr EEG ALL NIGHT RECORDING
Medium Descr ELECTROENCEPHALOGRAM ALL NIGHT RECORDING
Long Descr Electroencephalogram (EEG); all night recording
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 1 - Diagnostic Tests for Radiology Services
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 Procedure or Service, Not Discounted when Multiple
Type of Service (TOS) 5 - Diagnostic Laboratory
Berenson-Eggers TOS (BETOS) T2D - Other tests - other
MUE Not applicable/unspecified.
CCS Clinical Classification 199 - Electroencephalogram (EEG)
Date
Action
Notes
2019-12-31 Deleted Code deleted. To report all night EEG recording, see 95705, 95706, 95707, 95711, 95712, 95713, 95717, 95718
2011-01-01 Changed Short description changed.
2003-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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