What does "prior authorization" typically require from the provider?

What does "prior authorization" typically require from the provider?

• A. Submitting clinical information to the payer demonstrating medical necessity to obtain approval before the service is performed.
• B. Submitting the bill after the service is performed.
• C. Scheduling the service with a specified time window.
• D. Providing patient feedback to the payer.

Answer: (A)