Sleep Testing

Multiple sleep latency (MSLT) or maintenance of wakefulness testing, recording, analysis and interpretation of physiological measurements of sleep during multiple trials to assess sleepiness.

Sleep study, simultaneous recording of ventilation, respiratory effort, ECG or heart rate, and oxygen saturation, unattended by a technologist.

Sleep study, simultaneous recording of ventilation, respiratory effort, ECG or heart rate, and oxygen saturation, attended by a technologist.

Polysomnography, sleep staging with 1-3 additional parameters of sleep, attended by a technologist.

Sleep staging with 4 or more additional parameters of sleep, attended by a technologist.

Sleep staging with 4 or more additional parameters of sleep, with initiation of continuous positive airway pressure therapy or bilevel ventilation, attended by a technologist.

Sleep studies and polysomnography refer to the continuous and simultaneous monitoring and recording of various physiological and pathophysiological parameters of sleep for 6 or more hours with physician review, interpretation and report. The studies are performed to diagnose a variety of sleep disorders and to evaluate a patient's response to therapies such as nasal continuous positive airway pressure (NCPAP).
Polysomnography is distinguished from sleep studies by the inclusion of sleep staging which is defined to include a 1-4 lead electroencephalogram (EEG), an electro-oculogram (EOG), and a submental electromyogram (EMG). Additional parameters of sleep include: 1) ECG; 2) airflow; 3) ventilation and respiratory effort; 4) gas exchange by oximetry, transcutaneous monitoring, or end tidal gas analysis; 5) extremity muscle activity, motor activity-movement; 6) extended EEG monitoring; 7) penile tumescence; 8) gastroesophageal reflux; 9) continuous blood pressure monitoring; 10) snoring; 11) body positions; etc.
The sleep services (95805-95811) include recording, interpretation and report. For interpretation only, use modifier 26.
For a study to be reported as polysomnography, sleep must be recorded and staged.
(Report with a 52 modifier if less than 6 hours of recording or in other cases of reduced services as appropriate)
(For unattended sleep study, use 95806)

Routine Electroencephalography (EEG)

Electroencephalogram (EEG) extended monitoring; up to one hour.

Electroencephalogram (EEG) extended monitoring; greater than one hour.

Electroencephalogram (EEG) including recording awake and drowsy (including hyperventilation and/or photic stimulation when appropriate). (for extended EEG monitoring, see 95812, 95813) (95817 has been deleted. To report, use 95816)

Electroencephalogram (EEG) including recording awake and asleep (including hyperventilation and/or photic stimulation when appropriate).  (for extended EEG monitoring, see 95812, 95813)  (for digital analysis of EEG, see 95957) (95821 has been deleted. To report, use 95819)

Electroencephalogram (EEG); sleep only. (for extended EEG monitoring, see 95812, 95813) (95823 has been deleted. To report, use 95954)

Electroencephalogram (EEG); cerebral death evaluation only. (95826 has been deleted. To report, use 95829, 95951 or 95956)

Electroencephalogram (EEG) during nonintracranial surgery (e.g., carotid surgery).

Monitoring for localization of cerebral seizure focus by cable or radio, 16 or more channel telemetry, electroencephalographic (EEG) recording and interpretation, each 24 hours.

Digital analysis of electroencephalogram (EEG) (e.g., for epileptic spike analysis)

Wada activation test for hemispheric function, including electroencephalographic (EEG) monitoring.

Functional cortical and subcortical mapping by stimulation and/ recording of electrodes on brain surface, or depth electrodes, to provoke seizures or identify vital brain structures; initial hour of physician attendance.

Functional cortical and subcortical mapping by stimulation and/ recording of electrodes on brain surface, or depth electrodes, to provoke seizures or identify vital brain structures; each additional hour of physician attendance. (List separately in addition to code for primary procedure). (Use 95962 in conjunction with code 95961).

Magnetoencephalography (MEG) recording and analysis; for magnetic fields, single modality (eg, sensory, motor, language or visual cortex localization).

Magnetoencephalography (MEG), recording and analysis; for magnetic fields, each additonal modality (eg, sensory, motor, language or visual cortex localization). (List separately in addition to code for primary procedure)

• (Use 95967 in conjunction with code 95966)
• (For electroencephalography performed in addition to magnetoencephalography, see 95812-95827)
• (For somatosensory evoked potentials, auditory evoked potentials and visual evoked potentials performed in addition to magnetic evoked field responses, see 92585, 95925, 95926 and or 95930)
• (For computerized tomography performed in addition to magnetoencephalography, see 70450-70470,70496)
• (For magnetic resonance imaging performed in addition to magnetoencephalography, see 70551-70553).