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    v1.0.30
    OpenPayerBilling CodesSleep Medicine Testing and Long-term EEG ProceduresCPT cpt-95707-extended-eeg-monitoring-2-to-12-hours
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    CPT 95707: Ambulatory EEG, Continuous Monitoring 2–12 Hours

    CPT code 95707 describes an ambulatory electroencephalography (EEG) study of the brain’s electrical activity lasting 2 to 12 hours with continuous real-time monitoring and technologist maintenance; the service type is ambulatory EEG recording without video, and the typical site of service is an outpatient clinic or ambulatory monitoring center where an EEG technologist reviews the data and provides a technical report.

    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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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A 28-year-old ambulatory patient presents with recurrent, unexplained staring spells and intermittent episodes of altered awareness suspected to be seizures. The neurology team orders a prolonged ambulatory electroencephalography study without video to capture interictal epileptiform discharges and correlate symptoms over several hours. The patient arrives to the outpatient neurodiagnostic laboratory where an EEG technologist applies electrodes using the international 10–20 system, connects a portable EEG recorder, and instructs the patient on activity and the symptom diary. The study runs continuously for 6 hours with real-time monitoring and periodic technician review to ensure signal quality and maintain leads; no synchronized video is recorded. After completion, the technologist prepares a technical report describing electrode configuration, sampling rates, impedance checks, artifacts observed, and notable EEG events. A board-certified neurologist reviews the recording, interprets the data, and issues a clinical EEG report separate from the technologist’s technical description. Typical sites of service are outpatient neurodiagnostic laboratories, ambulatory EEG monitoring clinics, and hospital EEG departments when patients do not require continuous video monitoring. Common clinical indications include evaluation for epilepsy, characterization of paroxysmal events, and assessment of altered mental status when prolonged recording is needed but video is not required.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    95816EEG; continuous overnight monitoring, >12 hours up to 72 hours, without videoPerformed when longer duration monitoring is required beyond the 2–12 hour window of 95707.
    95708Ambulatory EEG monitoring, continuous real-time, with video, 2–12 hoursUsed when synchronized video recording is required in addition to EEG monitoring; complements or substitutes 95707 when video is necessary.
    95812EEG; video-EEG monitoring, extended monitoring >24 hoursUsed for inpatient prolonged video-EEG monitoring for seizure localization; related when localization or ictal capture with video is needed.
    95957Electronic analysis of ambulatory EEG data (often technical analysis codes vary by payer)May be billed for specialized quantitative analysis or long-term data review in conjunction with 95707 depending on payer rules.
    99213Office/outpatient visit, established patient, intermediateTypical evaluation visit with the neurologist before or after EEG to document history, indications, and to discuss results.

    Related Modifiers

    11 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…
    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…
    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…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…
    82Modifier 82 is appended to a surgical CPT code to indicate that an attending physician acted as an assistant because a qualified resident surgeon was unavailable. In teaching hospitals it documents…- When to use: Append modifier 82 in teaching-hospital settings to indicate a physician served as an assistant surgeon because a qualified resident surgeon was unavailable (includes situations where…
    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…
    23Modifier -23 (Unusual Anesthesia) is used on anesthesia service CPT codes when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia…- Use modifier -23 only on anesthesia CPT codes (00100–01999) when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia because of…
    51Modifier –51 (Multiple Procedures) is used when the same provider performs multiple procedures in the same session to identify secondary, non‑exempt procedures and indicate payment reduction logic…- Use modifier -51 when the same provider performs multiple distinct procedures during the same patient encounter: report the highest‑valued procedure first (no modifier) and append -51 to…
    56Modifier ‑56 indicates the reporting provider furnished only the preoperative management for a surgical procedure and did not perform the intraoperative or postoperative care. It is used in…- Use Modifier -56 when a provider performs only the preoperative management in a split‑care situation (one physician manages preop care while a different physician performs the intraoperative…

    Showing 1–10 of 11

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    2084P0800X
    207L00000X
    261QP2300X
    152W00000X
    2472B0301X
    207YS0012X
    332H00000X
    282E00000X

    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-95708-UNMONITORED-AMBULATORY-EEG-12-26-HOURS

    CPT 95708: Unmonitored EEG, 12–26 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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