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Official Description

Electroencephalogram (EEG); cerebral death evaluation only

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

An electroencephalogram (EEG) is a diagnostic procedure that measures the electrical activity of the brain. In the context of CPT® Code 95824, the EEG is specifically utilized to evaluate suspected cerebral death in a comatose patient. This procedure is critical in determining the presence or absence of brain activity, which is essential for making informed decisions regarding the patient's prognosis and potential end-of-life considerations. During the EEG, a trained technician applies a series of sixteen to eighteen electrodes to the patient's scalp, using a conductive sticky paste to ensure optimal contact. These electrodes are connected to an amplifier and a recording device, which captures the brain's electrical signals. The recording process transforms these signals into visual representations, typically displayed as wavy lines on graph paper. The duration of the EEG for patients suspected of cerebral death is a minimum of 30 minutes, allowing sufficient time to assess any electrical brain activity. Following the procedure, a physician reviews the recorded data and provides a comprehensive written interpretation of the findings, which is crucial for clinical decision-making regarding the patient's condition.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The electroencephalogram (EEG) performed under CPT® Code 95824 is indicated for the evaluation of suspected cerebral death in patients who are in a comatose state. This procedure is specifically utilized when there is a need to assess the brain's electrical activity to confirm the absence of brain function, which is a critical factor in determining the patient's neurological status and potential end-of-life decisions.

  • Suspected Cerebral Death The EEG is conducted to evaluate patients who are suspected of having experienced cerebral death, a condition characterized by the irreversible loss of all brain function.

2. Procedure

The procedure for conducting an EEG under CPT® Code 95824 involves several key steps that ensure accurate assessment of brain activity.

  • Electrode Placement The EEG technician begins by preparing the patient and the necessary equipment. The technician applies sixteen to eighteen electrodes to specific locations on the patient's scalp. These electrodes are secured using a conductive sticky paste to ensure reliable electrical contact, which is essential for capturing accurate brain signals.
  • Connection to Recording Equipment Once the electrodes are in place, they are connected via wires to an amplifier and a recording machine. This setup is crucial as it allows the electrical signals generated by the brain to be amplified and recorded for analysis.
  • Activation of the Recording Machine After the connections are established, the technician activates the recording machine. This marks the beginning of the recording period, during which the machine captures the brain's electrical activity.
  • Recording Duration The EEG is conducted for a minimum of 30 minutes. This duration is necessary to adequately assess whether any electrical brain activity is present, which is vital for determining the patient's neurological status.
  • Data Review and Interpretation Following the recording period, the physician reviews the EEG data. The physician analyzes the recorded electrical signals and provides a written interpretation of the results, which is essential for clinical decision-making regarding the patient's condition.

3. Post-Procedure

After the EEG procedure is completed, the patient may be monitored for any immediate effects of the test, although the EEG itself is non-invasive and typically does not require any special post-procedure care. The physician will review the recorded data and the interpretation will be documented in the patient's medical record. This interpretation is critical for guiding further clinical decisions regarding the patient's care and potential end-of-life considerations. The results of the EEG may also be discussed with the patient's family to provide clarity on the patient's neurological status.

Short Descr EEG CEREBRAL DEATH ONLY
Medium Descr ELECTROENCEPHALOGRAM CERE DEATH EVAL ONLY
Long Descr Electroencephalogram (EEG); cerebral death evaluation only
Status Code Carriers Price the 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 1
CCS Clinical Classification 199 - Electroencephalogram (EEG)
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
GC This service has been performed in part by a resident under the direction of a teaching physician
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
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Notes
2011-01-01 Changed Short description changed.
Pre-1990 Added Code added.
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