Loading...

    Explore
    • Policy Monitoring
    • Live Policy Feed
    • Billing Codes
    • NPI Medicare & Medicaid
    • Healthcare Providers
    • Health Insurance Payers
    • States
    • Service Lines
    • Taxonomy Codes
    Lookup tools
    • Billing Code Lookup
    • CPT Modifier Lookup
    • Provider Taxonomy Code Lookup
    • Healthcare Provider & Facility Lookup
    • Health Insurance Payer Lookup
    • Payer Contact Directory

    Policy & Benchmark Tools

    • Prior Authorization Lookup
    • Coverage Criteria Lookup
    • Timely Filing Lookup
    • Billing Code Reimbursement Rates
    • Payer Comparison Dashboard
    • Facility Comparison Dashboard
    • All tools

    Company

    • About OpenPayer
    • Data Sources
    • Trek Health
    OpenPayerby Trek Health
    LinkedInYouTube

    © 2026 Trek Health. All rights reserved.

    OpenPayer is built and maintained by Trek Health.

    v1.0.30
    OpenPayerBilling CodesSleep Medicine Testing and Long-term EEG ProceduresCPT cpt-95705-unmonitored-eeg-2-to-12-hours
    Ask Trek AI about this page

    CPT 95705: Unmonitored Electroencephalography, 2–12 Hours

    CPT code 95705 describes an unmonitored electroencephalography (EEG) study lasting 2 to 12 hours in which no video recording is performed; an EEG technologist reviews the tracings and provides a technical description. Service type: ambulatory or inpatient prolonged EEG monitoring without continuous video; typical site of service: hospital outpatient department, inpatient hospital bed, or accredited EEG lab/ambulatory EEG facility.

    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.

    Customize your policy alerts

    Sign up for cpt 95705 policy alerts

    Get alerted when payer policies referencing 95705 are released or updated.

    Monitor payer policy activity

    Receive email alerts as soon as relevant payer policies are published or updated.

    Table of contents

    Progress1 / 6

    Explore openpayer tools

    • Billing CodesCPT, HCPCS, DRG & more
    • Reimbursement RatesCommercial vs. Medicare rate reports
    • Facility ComparisonBeds, revenue & payer mix
    • ProvidersHospitals & facilities
    • PayersPlans & market footprint
    • Taxonomy CodesNUCC specialty codes
    • ModifiersCPT modifiers & usage
    • Prior AuthorizationPA policies by payer & drug
    • Timely FilingFiling deadlines by payer
    • Coverage CriteriaMedical necessity by payer
    • Payer ContactsClaims, PA & appeals contacts
    View all tools

    Clinical & Coding Specifications

    Clinical Context

    A typical patient for 95705 is an adolescent or adult evaluated for suspected focal epilepsy, unexplained spells, or altered consciousness in an outpatient or ambulatory EEG laboratory. The patient arrives for an unmonitored long-term EEG recording that will last between two and twelve hours. An EEG technologist applies scalp electrodes per the international 10–20 system, confirms signal quality, and instructs the patient on activity restrictions (sleep deprivation or normal sleep allowed, no video is recorded). The patient may undergo standardized activation procedures (hyperventilation, photic stimulation) or be allowed to sleep naturally; no continuous physician monitoring or simultaneous video capture is performed. The technologist records and stores the raw digital EEG data, performs routine checks during the study, and prepares a technical report describing electrode placement, recording duration, significant electrographic events, and technical artifacts. A neurologist or epileptologist later reviews the recording and issues an interpretation and clinical report (professional component). Typical sites of service include hospital outpatient EEG labs, ambulatory EEG centers, and some freestanding neurology clinics. Common clinical indications include new-onset seizures, breakthrough seizures despite therapy, transient loss of consciousness, or evaluation of altered mental status.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    95951Recording of sleep, ventilatory and oxygenation parameters during polysomnography; attended by a technologistOften performed when there is concern for sleep-related events that may require simultaneous respiratory monitoring; may be ordered separately or instead of prolonged EEG.
    95816EEG during wakefulness and sleep, routine, with hyperventilation and photic stimulation (30 minutes)A shorter routine EEG often performed before or instead of a long-term unmonitored study when brief recording is adequate for diagnosis.
    95812EEG, awake and drowsy, tracing only, without interpretation and report (routine)Technical-only routine EEG when facility bills the technical component; may be used when 95705 is not indicated or for shorter recordings.
    95925EEG monitoring for seizure localization (intracranial)An advanced monitoring code for invasive or intensive localization that is a higher-complexity follow-up when noninvasive ambulatory EEG (95705) is insufficient.
    95822Electroencephalogram during sleep, neonatal or pediatric — routinePediatric-specific EEGs that may be used in children when sleep-focused recording is required; serves similar clinical purposes in pediatric workflows.

    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…
    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…
    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…
    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…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    2084P0800X
    246Y00000X
    125Q00000X
    261QP2300X
    246ZB0302X
    3336C0003X
    103G00000X
    261QS1200X

    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-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-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.
    Published by

    Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.