| Medical Policy | Revision |
|---|---|
| Quantitative Electroencephalography | Updated description, policy guidelines, and references added. Updated When Not Covered with the following: “Quantitative electroencephalographic (EEG)-based assessment of the theta:beta ratio is considered investigational as a diagnostic aid for for cognitive impairment and all mental health diagnosis, including but not limited to: Major depressive disorder; Substance use disorder diagnoses; Post-traumatic stress disorder; Conversion disorder with seizures or convulsions; Anxiety disorder/generalized anxiety disorder; Postconcussional syndrome; Autism spectrum disorders. Specialty Matched Consultant Advisory Panel review 6/2025. Medical Director review 6/2025. Notification given 7/16/2025 for effective date 9/10/2025. |
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