Summary & Overview
CPT 95717: Continuous EEG Spike and Seizure Detection, 2–12 Hours
CPT code 95717 covers physician or qualified professional review and analysis of recorded events for spike and seizure detection from a continuous electroencephalography (EEG) study lasting 2 to 12 hours without video. This code captures a focused monitoring and interpretation service that supports diagnosis and management of seizure disorders and transient neurologic events. Nationally, accurate coding and documentation for multi-hour EEG monitoring affect clinical workflows, utilization tracking, and payment for neurodiagnostic services.
Key payers include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. This publication outlines expected coverage considerations and common billing contexts across major national payers.
Readers will find a concise explanation of the clinical service represented by the code, typical sites of service, common modifiers used with the code, and a summary of payer presence in analyses. The piece also provides context on how CPT code 95717 fits within EEG monitoring services and what clinicians and billing professionals should verify in their records: documentation of the monitoring duration (2–12 hours), absence of video, interpretation by an appropriate provider, and a finalized report. Data not available in the input for specific payor policies, associated taxonomies, ICD-10 pairings, and related codes are noted as unavailable where applicable.
Billing Code Overview
CPT code 95717 describes physician or other qualified health care professional review and analysis of recorded events for spike and seizure detection from a continuous electroencephalography (EEG) study lasting 2 to 12 hours. No video recording is obtained as part of this service. The provider interprets the EEG findings and prepares a report.
Service type: EEG interpretation and event analysis (continuous, non-video, 2–12 hours)
Typical site of service: Hospital inpatient or outpatient EEG laboratory, ambulatory monitoring facility, or other clinical setting capable of continuous EEG recording for multi-hour monitoring
Clinical & Coding Specifications
Clinical Context
A typical adult patient presents to an outpatient neurology clinic with recurrent unprovoked staring spells and suspected focal seizures that were not captured on routine EEG. The neurologist orders a continuous ambulatory electroencephalography (EEG) recording lasting between 2 and 12 hours without synchronized video to document interictal spikes or electrographic seizures. The patient arrives to the EEG lab where a technologist applies standard scalp electrodes, confirms impedance and signal quality, and instructs the patient on activity restrictions during the recording. The recording runs in an ambulatory or clinic-based EEG suite and is transmitted or stored for later review. A physician or other qualified health care professional later reviews the recorded events, analyzes spike and seizure detection, interprets the tracing, documents electrographic findings (including spike frequency, localization, and any electrographic seizures), and prepares a formal report for the referring clinician. Typical indications include evaluation of suspected epilepsy, characterization of seizure type, assessment of focal slowing or interictal epileptiform discharges, medication adjustment assessment, and preoperative localization in selected cases. The service is typically billed by neurology or neurophysiology providers after completion of review and report generation.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when reporting only the physician interpretation and report separate from technical recording when the technical component is billed by another entity or facility. |