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    v1.0.30
    OpenPayerBilling CodesSub-Scalp Bilateral Electroencephalography Analysis and Monitoring ProceduresCPT cpt-1005t-subscalp-continuous-bilateral-eeg-device-programming
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    CPT 1005T: Subscalp Continuous Bilateral EEG System Programming

    CPT code 1005T describes a face-to-face clinical service in which the provider reviews and adjusts programming of an implanted subscalp continuous bilateral electroencephalography (EEG) monitoring system during the first 15 minutes of contact; this service involves analyzing device parameters and making changes to contact groups, gain, or bandpass filters and is typically delivered as device programming/management in an outpatient or ambulatory device clinic or procedural follow-up setting.

    For related coverage guidance, see recent payer policy updates: Navigated Transcranial Magnetic Stimulation for Preoperative Brain Mapping, Navigated Transcranial Magnetic Stimulation for Preoperative Brain Mapping, Navigated Transcranial Magnetic Stimulation for Preoperative Brain Mapping.

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    Clinical & Coding Specifications

    Clinical Context

    A 34-year-old patient with drug-resistant focal epilepsy presents for routine in-person follow-up after implantation of a subscalp continuous bilateral electroencephalography (EEG) monitoring system. The patient reports intermittent auras and breakthrough focal seizures despite antiseizure medications. The provider conducts a face-to-face visit to review recorded EEG data, assess the current device settings, interrogate signal quality, and perform real-time adjustments (for example, reassigning contact groups, changing amplifier gain, or modifying bandpass filter settings). The first 15 minutes of this clinician–patient encounter, during which the provider analyzes parameters and makes programming changes to optimize seizure detection and monitoring fidelity, is reported with 1005T. Typical workflow includes device interrogation, data review, discussion of seizure events and symptoms, programming changes as needed, and documentation of time spent and changes made. Typical site of service is an outpatient neurology clinic, epilepsy monitoring clinic, or ambulatory surgery center for device-related follow-up visits.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    95970Electronic analysis of implanted neurostimulator pulse generator/transmitter, simple or complex programming; initial interrogation with simple or complex programmingPerformed when more extensive programmer interrogation or reprogramming of an implanted neurostimulator is required in addition to subscalp EEG device adjustments
    95971Electronic analysis with programming, subsequent time periodUsed for subsequent, more comprehensive in-clinic programming sessions beyond the first focused 15-minute 1005T encounter
    95972Electronic analysis without programmingUsed when device interrogation and data review are performed but no programming changes are made
    92611Evaluation for prescription of speech-generating augmentative and alternative communication device; complexOccasionally used in multidisciplinary visits when communication assessment is required for patients with severe neurologic impairment (rarely concurrent)
    99406Smoking and tobacco use cessation counseling, intermediate, greater than 3 minutes up to 10 minutesRepresents an example of a separate counseling service that, if provided and properly documented as distinct, may be reported in addition to device programming with an appropriate modifier

    Related Modifiers

    8 rows

    ModifierDescriptionWhen to Use
    24Modifier 24 denotes an unrelated evaluation and management (E/M) service performed by the same physician or qualified healthcare professional during a postoperative global period. Per CPT guidance,…- Use modifier 24 when you report an evaluation and management (E/M) service performed by the same physician or same-specialty group during a procedure’s postoperative global period that is unrelated…
    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.,…
    57CPT® modifier -57 (“Decision for Surgery”) is appended to an Evaluation and Management (E/M) service when that encounter results in the initial decision to perform a major surgery (a procedure with a…- Use modifier 57 when an E/M service provided by the same provider (or same tax ID) on the day of or the day before a major surgical procedure (90‑day global period) results in the initial decision…
    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…
    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…
    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…
    79Modifier 79 indicates a surgical procedure performed during the postoperative global period of a prior surgery that is unrelated to the original procedure. Per AMA/CPT and CMS guidance, it is…- Use modifier 79 when the same physician (or same‑specialty physician in the same group) performs a surgical procedure during the postoperative global period of a prior surgery and the new procedure…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    2084N0400X
    363L00000X
    2086S0127X
    1223X2210X
    2085R0202X
    122400000X
    1744R1103X
    282E00000X

    Related Payer Policy Updates

    Specialty: Neurology/Neurosurgery1 / 3

    10 rows

    PolicyPayerEffective Date
    Navigated Transcranial Magnetic Stimulation for Preoperative Brain Mappingpremerabluecrossofwashington2027-02-05
    Navigated Transcranial Magnetic Stimulation for Preoperative Brain Mappingpremerabluecrossofwashington2027-02-05
    Navigated Transcranial Magnetic Stimulation for Preoperative Brain Mappingpremerabluecrossofwashington2027-02-05
    Calcitonin Gene-Related Peptide (CGRP) Inhibitors: Vyepti (eptinezumab-jjmr)Mass General Brigham Health Plan2027-01-04
    Clinical Review Criteria Intraoperative Neurophysiological Monitoring (IONM)Kaiser Permanente2027-01-01
    Open Neuroplasty Lumbar PlexusCigna2026-12-15
    Laser Interstitial Thermal TherapyCigna2026-11-15
    Remote Electrical Neuromodulation for Migraines (i.e., Nerivio®)bcbsvermont2026-11-01
    Artificial Cervical Intervertebral Discuniverahealthcare2026-10-15
    Lumbar Microdiscectomyuniverahealthcare2026-10-15

    Related Codes

    CPT-1004T-IMPLANTED-SUBSCALP-CONTINUOUS-BILATERAL-EEG-TECHNICAL-REVIEW

    CPT 1004T: Implanted Subscalp Continuous Bilateral EEG Data Review

    CPT-1006T-SUBSCALP-IMPLANT-EEEG-DEVICE-PROGRAMMING

    CPT 1006T: Implantable Subscalp Continuous EEG Settings Adjustment

    CPT-1007T-SUBSCALP-CONTINUOUS-BILATERAL-EEG-30-DAY-INTERPRETATION

    CPT 1007T: Implanted Subscalp Continuous Bilateral EEG Review

    CPT-1008T-EXTERNAL-COMMUNICATOR-SETUP-SUBSCALP-CONTINUOUS-BILATERAL-EEG

    CPT 1008T: External Device Setup and Patient Education for Subscalp EEG

    CPT-1009T-SUBSCALP-CONTINUOUS-BILATERAL-EEG-REMOTE-INTERPRETATION-30-DAY

    CPT 1009T: Remote Subscalp Continuous Bilateral EEG Monitoring, 30 Days

    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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