Electroencephlography (EEG)
What Benefits Are Gained by These Tests?An electroencephalogram (EEG) may be done to:
- Diagnose epilepsy and determine what types of seizures are occurring. EEG is the most useful and important test in confirming a diagnosis of epilepsy.
- Identify the location of a suspected brain tumor, inflammation, infection (such as encephalitis or meningitis), bleeding, head injury, or disease in the brain, such as Parkinson's disease.
- Evaluate periods of unconsciousness or dementia.
- Help predict a person's chance of recovery after a change in consciousness.
- Confirm or rule out brain death in a person who is in a coma.
- Studies sleep disorders, such as narcolepsy.
- Monitor brain activity while a person is receiving general anesthesia during surgery.
Medical Necessity Required of an EEG:
| Symptoms | ICD-9 |
| Alzheimer's Disease | 331 |
| Dementia | 294.1 |
| Encephalitis | 323.9 |
| Encephalopathy | 348.3 |
| Epilepsy | 345.0-345.9 |
| Seizures | 345 |
| Sleep Disorder | 780.5 |
| Stupor | 780.09 |
| Syncope | 780.2 |
Available Testing Locations:
* Requisition Forms Available to Download in the Doctor Log-In Section
* Neurology Consultations Available Upon Request.
* Requisition Forms Available to Download in the Doctor Log-In Section
* Neurology Consultations Available Upon Request.