CPT Codes for EEG
- Hyperventilation and photic stimulation are not a mandatory part of EEG testing.
- They are performed only when medically appropriate and not otherwise contraindicated.
- Hyperventilation and photic stimulation are bundled into the EEG service whenever they are performed - they cannot be coded separately.
- Routine length of monitoring is considered about 20-40 minutes (use 95816, 95819, 95822).
- 95816 - EEG including recording awake and drowsy
- 95819 - EEG including recording awake and asleep
- 95822 - EEG sleep only
- 95812 - EEG extended monitoring; up to one hour, is approximately 40-60 min of monitoring.
- 95813 - greater than one hour
- 95824 - cerebral death evaluation only
- 95827 - all night sleep only
Prolonged EEG monitoring
- 95950 - Monitoring for identification and lateralization of cerebral seizure focus, EEG (e.g., 8 channel EEG) recording and interpretation, each 24 hours
- 95953 - Monitoring for localization of cerebral seizure focus by computerized portable 16 or more channel EEG, recording and interpretation, each 24 hours.
- 95956 - Monitoring for localization of cerebral seizure focus by cable or radio, 16 or more channel telemetry, EEG recording and interpretation, each 24 hours
- 95951 - Monitoring for localization of cerebral seizure focus by cable or radio, 16 or more channel telemetry, combined EEG and video recording and interpretation, each 24 hours
Special EEG proceduress
- 95954 - Pharmacological or physical activation requiring physician attendance during EEG recording of activation phase (e.g., thiopental activation test)
- 95955 - Electroencephalogram (EEG) during nonintracranial surgery (e.g., carotid surgery)
- 95957 - Digital analysis of electroencephalogram (EEG) (e.g., for epileptic spike analysis)
- 95958 - Wada activation test for hemispheric function, including EEG monitoring
- 95829 - Electrocorticogram at surgery (separate procedure)
- 95830 - Insertion by physician of sphenoidal electrodes forv EEG recording
- 95961 - Functional cortical and subcortical mapping by stimulation and/or recording of electrodes on brain surface, or of depth electrodes, to provoke seizures or identify vital brain structures; initial hour of physician attendance
- 95962 - Each additional hour of physician attendance (List separately in addition to code for primary procedure, used with 95961)
- 95920 - Intraoperative neurophysiology testing, per hour (List separately in addition to code for primary procedure)