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 CodesOther EEG Testing ProceduresCPT cpt-95961-intracranial-seizure-localization-brain-mapping
    Ask Trek AI about this page

    CPT 95961: Intracranial EEG Mapping for Seizure Localization

    Medicare pays $252 on average nationally for this procedure.

    CPT code 95961 describes intracranial electroencephalographic mapping in which electrodes are placed on or within the brain and electrical stimulation is used to provoke seizures to localize the seizure onset zone; this is a diagnostic intracranial EEG monitoring and mapping procedure typically performed by neurosurgery or clinical neurophysiology teams as an operative/inpatient or procedure-based service in the surgical operating room or specialized epilepsy monitoring unit (inpatient) to guide resective or lesionectomy epilepsy surgery planning.

    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 95961 policy alerts

    Get alerted when payer policies referencing 95961 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 / 7

    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 is a 25–45-year-old adult with medically refractory focal epilepsy being evaluated for potential epilepsy surgery. The patient has recurrent focal-onset seizures despite trials of multiple antiepileptic drugs and noninvasive localization studies (video EEG, MRI, PET, and MEG) that suggest a surgically remediable epileptogenic zone but remain insufficiently localized. The clinical workflow begins with a multidisciplinary epilepsy conference decision to pursue invasive monitoring and cortical stimulation mapping. The patient is admitted to an inpatient neurosurgical unit or epilepsy monitoring unit. Under general anesthesia, a neurosurgeon performs a craniotomy and places subdural grid/strip electrodes or stereotactic depth electrodes targeting the suspected epileptogenic cortex. After recovery from anesthesia, the epilepsy team performs electrocorticographic recording over days to capture spontaneous seizures. Electrical cortical stimulation is performed using the implanted electrodes to map eloquent cortex and to provoke habitual seizures for precise localization of the seizure onset zone. Results guide a subsequent resection or ablation procedure. Typical site of service is an inpatient operating room for electrode implantation with subsequent inpatient epilepsy monitoring unit for stimulation and recording; the stimulation mapping itself commonly occurs at the bedside in the inpatient monitoring unit or in an intraoperative setting if performed during awake craniotomy.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    61840Craniectomy or craniotomy for excision of mass lesion; supratentorialPerformed for electrode placement or subsequent resection of identified epileptogenic focus.
    61533Craniectomy or craniotomy for excision of lesion, stereotactic; supratentorialUsed when stereotactic techniques are used for depth electrode placement or lesion removal.
    95957Monitoring for mapping of motor and sensory pathways, intraoperative (electrocortical stimulation)Related cortical mapping service; may be billed when motor/sensory mapping is performed intraoperatively in conjunction with seizure focus mapping.
    95886Recording, long-term EEG during video-EEG monitoring, continuous inpatientRepresents the prolonged EEG recording component during invasive monitoring; often performed concurrently with stimulation mapping.
    61512Craniectomy or craniotomy for excision of intracranial lesion; limitedAlternative craniotomy code used depending on lesion and approach; related to electrode placement or resection.

    Related Modifiers

    13 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…
    50Modifier –50 (Bilateral Procedure) is appended to a CPT code when an identical procedure is performed on paired anatomical structures during the same operative session. The AMA states to add…- Use modifier -50 when the same CPT surgical, diagnostic, or radiology procedure is performed on paired anatomical structures (both sides of the body) during the same operative/session by the same…
    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…
    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…
    54Modifier ‑54 (“Surgical care only”) is appended to a CPT surgical procedure when the reporting surgeon performs the intraoperative (surgical) component but does not furnish the preoperative and/or…- Use modifier -54 when the reporting surgeon provided only the intraoperative (surgical) component of a procedure and preoperative and/or postoperative management has been or will be provided by…
    55Modifier –55 indicates the billing provider furnished only postoperative management for a procedure that has a global surgical period. According to AAPC, this modifier is appended to the same CPT…- Use modifier -55 when billing the same CPT surgical code that has a 10- or 90-day global period and you, as a provider other than the original surgeon, furnished ONLY postoperative management (no…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    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…
    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…

    Showing 1–10 of 13

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    208000000X
    207X00000X
    208800000X
    261QR0200X
    213ES0000X
    207WX0200X
    320700000X
    207XS0106X

    Related ICD-10-CM Codes

    22 rows

    ICD-10-CM CodeDescription
    C71.9Malignant neoplasm of brain, unspecified
    D33.9Benign neoplasm of central nervous system, unspecified
    F05Delirium due to known physiological condition
    F44.5Conversion disorder with seizures or convulsions
    G12.21Amyotrophic lateral sclerosis
    G25.0Essential tremor
    G31.84Mild cognitive impairment of uncertain or unknown etiology
    G37.9Demyelinating disease of central nervous system, unspecified
    G40.111Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, with status epilepticus
    G40.211Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, with status epilepticus

    Showing 1–10 of 22

    Related Payer Policy Updates

    Specialty: Neurology/Neurosurgery1 / 3

    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-95954-EEG-ACTIVATION-WITH-PROVIDER-ATTENDANCE

    CPT 95954: EEG Activation with Drug or Physical Stimulation

    CPT-95955-INTRAOPERATIVE-EEG-MONITORING-NONINTRACRANIAL-SURGERY

    CPT 95955: Intraoperative EEG Monitoring During Nonintracranial Surgery

    CPT-95957-COMPUTER-BASED-EEG-ANALYSIS

    CPT 95957: Computer-Based Analysis of Electroencephalogram

    CPT-95958-WADA-ACTIVATION-TEST-EEG-MONITORING

    CPT 95958: Wada Activation Test with EEG Monitoring

    CPT-95962-INTRACRANIAL-ELECTROCORTICOGRAPHY-STIMULATION-MAPPING

    CPT 95962: Intraoperative Brain Surface/Subcortical Mapping for Seizure Localization

    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.