Mednet Member
Neurology · USF Health
A routine EEG, defined by codes 95819 or 95816, typically lasts 20-40 minutes or up to an hour. Studies lasting 1 to 2 hours (code 95813) lack a clear rationale and are not commonly utilized. "Prolonged" EEGs are the newer (2020) codes that depend on duration and whether or not there is video.
The ch...