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    v1.0.30
    OpenPayerBilling CodesMEG Testing ProceduresCPT cpt-95965-magnetoencephalography-meg-spontaneous-brain-activity
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    CPT 95965: Magnetoencephalography (MEG) Recording and Analysis

    Medicare pays $431 on average nationally for this procedure.

    CPT code 95965 describes magnetoencephalography (MEG) recording and analysis of a patient’s spontaneous brain magnetic activity, a neuroimaging procedure used to detect and map neural magnetic fields; service type: diagnostic neurophysiology / functional neuroimaging; typical site of service: hospital outpatient department, dedicated neurophysiology or imaging lab, or specialized neurology center.

    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.

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is a 28–65-year-old referred by neurology for evaluation of focal epilepsy that is resistant to medication. The patient presents to an outpatient neurodiagnostic center or an academic hospital neurophysiology lab for magnetoencephalography (MEG) recording. Prior to the study, the technologist reviews the indication, recent MRI and electroencephalography (EEG) findings, and confirms lack of ferromagnetic implants or contraindications. The patient is positioned supine with head stabilization in the MEG helmet; spontaneous brain magnetic activity is recorded for baseline resting state and, when indicated, during activation maneuvers (hyperventilation, photic stimulation) or task performance. The interpreting physician (neurologist or neurophysiologist) reviews raw sensor data, performs source localization and dipole modeling, and integrates results with MRI for surgical planning or localization of epileptogenic zones. Typical sites of service are an outpatient neurophysiology laboratory, hospital-based imaging center, or an academic medical center. Typical clinical workflow includes pre-procedure screening, MEG acquisition (often 60–120 minutes), post-processing/source analysis, physician interpretation, and a documented report to the referring provider addressing localization and concordance with other studies for management decisions such as epilepsy surgery candidacy or targeted electrode placement.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    95812Electroencephalogram (EEG); routine with recording of awake and drowsy states, 20-40 minutesOften performed before or alongside MEG to provide complementary electrical data for localization
    70553Magnetic resonance imaging, brain (including brainstem); with and without contrast materialMRI is used for anatomical co-registration and source localization with MEG results
    95970Magnetoencephalography (MEG) with invasive or noninvasive localization, other specified techniqueAncillary or alternative MEG-related procedure codes that may be used for different MEG services or extended localization studies
    92540Electrocochleography and related auditory evoked potentialsWhen MEG is used for auditory cortex functional mapping, auditory evoked potential testing may be performed in conjunction
    92626Assessment of central auditory function, briefSupplemental functional testing in pre-surgical mapping workflows

    Related Modifiers

    8 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…
    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…
    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…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    2084P0800X
    2084N0400X
    207RH0000X
    2084N0008X
    222Z00000X
    261QC1800X
    224Z00000X
    172M00000X

    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-95966-MAGNETOENCEPHALOGRAPHY-EVOKED-BRAIN-MAGNETIC-ACTIVITY

    CPT 95966: Magnetoencephalography, Evoked Brain Magnetic Activity

    CPT-95967-MEG-EVOKED-BRAIN-ACTIVITY-ADDITIONAL-MODALITY

    CPT 95967: Magnetoencephalography for Evoked Brain Functional Modality

    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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