Topographic Brain Mapping (Quantitative Electroencephalography)

This policy covers topographic brain mapping/brain electrical activity mapping/quantitative EEG (TBM/BEAM/QEEG) and related portable point‑of‑care EEG systems (e.g., eVox, COGNISION, BrainScope) used to acquire, analyze, display and store brain electrical activity. It identifies adjunctive use with conventional EEG for epilepsy evaluation (including pre‑surgical mapping, ambulatory and intraoperative/ICU monitoring) and potential applications in TBI/concussion, cerebrovascular disease, dementia/encephalopathy, neonatal HIE, chronic pain and other neurocognitive disorders, but notes TBM/BEAM/QEEG and portable devices are considered experimental/investigational/unproven for many indications, are generally supported only as an adjunct to traditional EEG per criteria, and the policy is inactive for claims adjudication (state mandates may supersede).

"Adjunct to traditional EEG for evaluation of epilepsy when surface or long-term EEG is inconclusive and additional testing for possible epileptic spikes or seizures is needed."