A "psychiatry appointment 48 hour cancellation policy" means that you must cancel your appointment with your provider at least 48 hours before the scheduled time to avoid any potential fees or penalties for missing the appointment; essentially, you need to give two full days' notice if you need to reschedule or cancel your session.

Fee for late cancellation: Same-Day Cancellation: If the appointment is cancelled on the same day, an additional $75 will be charged to the credit card on file.