Below are the listed CPT codes used for insurance billing with MSI:
- CPT(95965-26) Magnetoencephalography Spontaneous Brain Magnetic Activity
- CPT(95966-26) Magnetoencephalography Evoked Magnetic Field, 1st Modality
- CPT(95967-26) Magnetoencephalography Evoked Magnetic Field, 2nd, 3rd, 4th, & 5th Modality
- CPT(95816-26) Awake-Drowsy
- CPT(95819-26) Awake-Sleep
- CPT(95813-26) EEG greater than 1 hour
Volume Acquisition MRI Scan
In addition to the MSI study, all referred patients will need to have a 3D volume acquisition MRI in DICOM format with no less than 1 mm slices. Anatomical points such as the nasion and both ears will need to be preserved. Spoiled Gradient Recovery series (SPGR) are the preferred scan format, although we can also use FLAIR sequences. Your patient may have this scan acquired on site at United Hospital’s 3T MRI if needed.
Important Information about Insurance
Although MSI has its own CPT codes, MSI studies often need to be pre-approved with private insurance carriers despite MEG/MSI codes being listed under “No pre-authorization or pre-certificiation is required”. All government insurance such as medicare or medicaid are already covered and do not require prior authorization.
If you have questions about study coverage, please contact Mary Conroy, RN at (651) 241-5600.
Intraoperative Neuronavigational Stereotaxis
One of the main benefits of magnetic source imaging is having a functional map while in the operating room. Magnetic Source Imaging scans can be imported directly into neuronavigational systems like Medronic’s Stealth and BrainLab. Identifying eloquent cortex while targeting lesions and epileptogenic foci in real time helps minimize post-operative deficit and helps maximize patient treatment.
To refer a patient for a Magnetic Source Imaging study, please fill out the Physician Referral Form and fax it to:
Attn: Mary Conroy, RN
FAX: (651) 241-2378
Ph: (651) 241-6375