Summary & Overview
CPT 1007T: Subscalp Continuous Bilateral EEG, 30-Day Review and Interpretation
CPT code 1007T designates clinician review, interpretation, and reporting of up to 30 days of recordings from an implanted subscalp continuous bilateral EEG monitoring system. This service captures longitudinal, ambulatory neurophysiologic data to identify spikes and seizure activity and supports diagnosis and management of epilepsy and related seizure disorders. Nationally, the code reflects growing adoption of implantable continuous EEG technology for out-of-hospital seizure detection and management.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical intent and service setting, coverage and reimbursement context across major national payers, common billing considerations, and related coding references. The publication summarizes typical utilization scenarios, the clinical value of extended-duration implanted EEG monitoring, and implementation considerations for outpatient neurology and epilepsy practices.
This summary is intended to orient clinicians, coding staff, and policy analysts to the purpose of CPT code 1007T, the settings where the service is performed, and the types of information payers commonly evaluate for coverage and claims adjudication. Data not available in the input.
Billing Code Overview
CPT code 1007T describes a professional review and interpretation of up to 30 days of electroencephalography (EEG) recordings from an implanted subscalp continuous bilateral EEG monitoring system. The provider identifies epileptiform spikes and seizure activity, interprets the findings, and prepares a formal report.
-
Service type: Long-term ambulatory implanted EEG review and interpretation
-
Typical site of service: Ambulatory monitoring interpretation performed by a clinician, often in an outpatient neurology or epilepsy monitoring setting
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A 34-year-old patient with medically refractory focal epilepsy is referred for implantation of a subscalp continuous bilateral electroencephalography (EEG) monitoring system to capture ambulatory seizures and interictal epileptiform activity. The device is implanted in a minor outpatient surgical setting or ambulatory surgery center under local anesthesia with sedation, and continuously records EEG data for up to 30 days. During the monitoring interval the patient continues daily activities at home and activates event markers as needed; data are periodically transmitted to the monitoring platform. The treating neurologist or epileptologist reviews the downloaded 30-day recording, uses automated spike and seizure detection tools to assist identification, visually inspects suspected events, interprets seizure types, lateralization and localization, quantifies spike burden, and prepares a formal report documenting findings, clinical correlation, and recommendations for the care team. Typical workflow steps include device implantation and programming, remote data acquisition, routine patient check-ins, clinician review and interpretation of recorded events, and generation of the clinical report for the referring physician and patient record.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure | When an E/M visit is performed on the same day as device implantation or procedural encounter and is distinct from the EEG monitoring interpretation |
26 | Professional component | When reporting only the physician interpretation/report separate from technical device-related charges
59 | Distinct procedural service | When a separate, unrelated procedure is performed on the same day and must be distinguished from the monitoring service
76 | Repeat procedure or service by same physician | When the EEG interpretation service is repeated by the same clinician within the same day for a separate monitoring dataset
77 | Repeat procedure by another physician | When a different physician repeats the interpretation on the same day for a separate dataset
GT | Telehealth — synchronous telecommunication | If the interpretation or discussion of results is performed via a real-time telehealth visit when allowable by payor policy
TC | Technical component | When billing only the technical portion (device recording, data storage, transmission) separate from the professional interpretation
GA | Waiver of liability statement on file (CMS) | When a payer requires documentation of an Advance Beneficiary Notice for expected noncoverage and it is on file
GA | (Note: CMS recognizes GA; list included once clinically relevant) |
AE | Advanced alternative payment model participant | When the provider is participating in an advanced APM that affects billing/reporting requirements
| Taxonomy Code | Specialty | Notes |
|---|---|---|
2084P0800X | Neurology | Epileptologists or general neurologists interpret long-term EEG and manage epilepsy |
208HP0005X | Clinical Neurophysiology | Specialists who perform EEG interpretation and advanced EEG monitoring analysis
2080P0202X | Neurosurgery | Neurosurgeons may implant monitoring systems or coordinate device placement
363LF0000X | Physical Medicine & Rehabilitation | (Occasionally involved in device-related functional assessments) Notes: These taxonomies reflect common specialties involved in interpretation, implantation, and follow-up care for subscalp continuous EEG monitoring.
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
G40.909 | Epilepsy, unspecified, not intractable, without status epilepticus | Common diagnosis for patients undergoing ambulatory EEG monitoring to characterize seizure activity |
G40.311 | Localization-related (focal) epilepsy and epileptic syndromes with simple partial (focal) seizures, intractable | Focal epilepsy often requires prolonged monitoring for localization prior to treatment changes or surgery
G40.319 | Localization-related (focal) epilepsy and epileptic syndromes with complex partial (focal) seizures, intractable | Capturing complex partial seizures and interictal spikes is a primary indication for subscalp continuous monitoring
G40.4 | Epilepsy and recurrent seizures, other and unspecified | Used when seizure classification is unclear pending EEG monitoring results
R56.9 | Unspecified convulsions | Short-term use when presenting complaint is convulsions and diagnostic clarification is needed through prolonged recording
Z96.89 | Presence of other functional implants | May be used in problem lists when an implantable monitoring device is present in the patient
F44.5 | Conversion disorder with seizures or convulsions | Used to differentiate psychogenic non-epileptic seizures from epileptic events; prolonged EEG aids in differentiation
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
1007T | Review up to 30 days of EEG recordings from an implanted subscalp continuous bilateral EEG monitoring system, identify spikes and seizure activity, interpret findings, and prepare a report | Primary billing code describing the physician interpretation of up to 30 days of continuous subscalp EEG data |
95816 | Electroencephalogram (EEG); continuous overnight monitoring, with video, not less than 16 channels | Used when inpatient or outpatient prolonged video-EEG monitoring is performed as an alternative or complementary study for localization or classification of events
95700 | Continuous EEG monitoring (e.g., ICU monitoring), with max 8 channels, more than 1 hour and up to 24 hours; interpretation and report | Related continuous EEG interpretation codes for shorter-duration or hospital-based monitoring services
92587 | Distortion product evoked otoacoustic emissions, limited | (Unrelated diagnostic audiology code) Included here only as an example of unrelated testing often co-ordered in pre-surgical evaluation of certain patients
99457 | Remote physiologic monitoring treatment management services, first 20 minutes of clinical staff/physician/other qualified healthcare professional time in a calendar month requiring interactive communication with the patient/caregiver | May be used for remote management of device transmissions and patient check-ins when payor policy allows