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    OpenPayerBilling CodesSleep Medicine Testing and Long-term EEG ProceduresCPT cpt-95708-unmonitored-ambulatory-eeg-12-26-hours
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    CPT 95708: Unmonitored EEG, 12–26 Hours

    CPT code 95708 describes an unmonitored electroencephalography (EEG) performed for a continuous period of 12 to 26 hours where no video recording is made; a technologist reviews the recorded brain electrical activity and provides a technical report. Service type: extended ambulatory EEG monitoring (technical component only). Typical site of service: outpatient EEG monitoring unit or ambulatory/clinic-based neurodiagnostic service.

    For related coverage guidance, see recent payer policy updates: Clinical Review Criteria Intraoperative Neurophysiological Monitoring (IONM), Remote Electrical Neuromodulation for Migraines (i.e., Nerivio®), Lumbar Microdiscectomy.

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    Clinical & Coding Specifications

    Clinical Context

    A 28-year-old ambulatory patient with a history of recurrent, unexplained episodes of altered consciousness and suspected epileptic seizures is referred for an ambulatory, unmonitored EEG. The study is ordered to capture interictal epileptiform discharges or ictal activity over an extended period when brief outpatient EEGs are nondiagnostic. An EEG technologist applies the standard 10–20 electrode system in the EEG lab or outpatient electrophysiology suite, instructs the patient on activity and event diary use, and then the patient leaves the facility for home monitoring. No synchronized video recording is performed. The technologist reviews the recorded electrical data after the monitoring period (12–26 hours), performs artifact annotation, and generates a technical report; interpretation may be performed later by the reading neurologist.

    Typical site of service: outpatient EEG laboratory or ambulatory neurodiagnostic clinic.

    Service type: unmonitored ambulatory electroencephalogram, technical component performed by EEG technologist, duration 12–26 hours, no video.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    95816Electroencephalogram (EEG) with monitoring for 1 hour up to 72 hours; with video; technologist review and interpretation.Performed when concurrent video-EEG monitoring is required; contrasts with unmonitored ambulatory EEG (95708).
    95951Electroencephalogram (EEG) with monitoring and recording, ambulatory, without video, for greater than 26 hours (each additional 24-hour period).Used for longer ambulatory EEG monitoring durations extending beyond the 12–26 hour window of 95708.
    95812Electroencephalogram (EEG) with video; inpatient or outpatient, longer monitoring with physician review.Used when facility provides continuous video synchronized with EEG, typically inpatient or long-term monitoring.
    95822Electroencephalogram interpretation and report (separate CPT for review/interpretation)Represents the professional interpretation component that may be reported in addition to the technical recording when billed separately.
    99050Services provided in the office at times other than regularly scheduled hours; for example, evenings, weekends, or holidaysMay apply if patient education or electrode placement occurs outside normal hours; indicates additional facility scheduling context.

    Related Modifiers

    9 rows

    ModifierDescriptionWhen to Use
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…
    77Modifier 77 indicates that a previously performed procedure or service was legitimately repeated by a different physician or other qualified health care professional. The AMA’s CPT definition…- Use modifier 77 when a basic procedure or service already performed is repeated by a different physician or other qualified health care professional (for example, a second provider independently…
    25CPT modifier 25 indicates that on the same day as another procedure or service, the same physician or other qualified health care professional provided a significant, separately identifiable…- When to apply: Use modifier 25 only on an E/M code to indicate the same provider delivered a significant, separately identifiable E/M service on the same day as another procedure or service — i.e.,…
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    2084P0800X
    2084N0400X
    207RH0002X
    2083B0002X
    261QD0000X
    2865C1500X
    111NS0005X
    163WP0218X

    Related ICD-10-CM Codes

    26 rows

    ICD-10-CM CodeDescription
    F05Delirium due to known physiological condition
    F44.4Conversion disorder with motor symptom or deficit
    F44.5Conversion disorder with seizures or convulsions
    F44.6Conversion disorder with sensory symptom or deficit
    G25.0Essential tremor
    G25.4Drug-induced chorea
    G26Extrapyramidal and movement disorders in diseases classified elsewhere
    G40.001Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, with status epilepticus
    G40.101Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, with status epilepticus
    G40.111Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, with status epilepticus

    Showing 1–10 of 26

    Related Payer Policy Updates

    Specialty: Neurology/Neurosurgery1 / 2

    10 rows

    PolicyPayerEffective Date
    Clinical Review Criteria Intraoperative Neurophysiological Monitoring (IONM)Kaiser Permanente2027-01-01
    Remote Electrical Neuromodulation for Migraines (i.e., Nerivio®)bcbsvermont2026-11-01
    Lumbar Microdiscectomyuniverahealthcare2026-10-15
    Artificial Cervical Intervertebral Discuniverahealthcare2026-10-15
    Lumbar Decompressionuniverahealthcare2026-10-15
    Responsive Neurostimulation for Focal EpilepsyPremera Bluecross2026-10-14
    Intraoperative MonitoringProvidence Health Plan2026-10-01
    Intraoperative MonitoringProvidence Health Plan2026-10-01
    High-Intensity Focused UltrasoundMass General Brigham Health Plan2026-10-01
    Vagal Nerve StimulationAmbetter Nevada2026-10-01

    Related Codes

    CPT-95705-UNMONITORED-EEG-2-TO-12-HOURS

    CPT 95705: Unmonitored Electroencephalography, 2–12 Hours

    CPT-95706-EXTENDED-EEG-MONITORING-2-TO-12-HOURS

    CPT 95706: EEG, 2–12 Hours, Intermittent Monitoring

    CPT-95707-EXTENDED-EEG-MONITORING-2-TO-12-HOURS

    CPT 95707: Ambulatory EEG, Continuous Monitoring 2–12 Hours

    CPT-95709-PROLONGED-AMBULATORY-EEG-12-TO-26-HOURS

    CPT 95709: Ambulatory EEG, 12–26 Hours, No Video

    CPT-95710-CONTINUOUS-EEG-MONITORING-NO-VIDEO

    CPT 95710: Continuous EEG Monitoring, Technologist Technical Review

    CPT-95711-UNMONITORED-EEG-2-TO-12-HOUR-VIDEO-TECHNICAL-REVIEW

    CPT 95711: Unmonitored EEG with Video, 2–12 Hours

    CPT-95712-EXTENDED-VIDEO-EEG-2-12-HOUR-MONITORING

    CPT 95712: Intermittent Video EEG Monitoring, 2–12 Hours

    CPT-95713-PROLONGED-EEG-WITH-VIDEO-2-TO-12-HOURS

    CPT 95713: Video Electroencephalography, 2–12 Hour Continuous Monitoring

    CPT-95714-UNMONITORED-EEG-12-TO-26-HOURS-WITH-VIDEO

    CPT 95714: Unmonitored EEG With Video, 12–26 Hours

    CPT-95715-PROLONGED-VIDEO-EEG-12-26-HOURS

    CPT 95715: Long‑term Video Electroencephalography, 12–26 Hours

    Showing 1–10 of 29

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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