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Updating Advance Notification or Prior Authorization Requests - Chapter 6, 2018 UnitedHealthcare Administrative Guide

Before we make a coverage decision, you may update or provide additional information supporting your request. Once we approve the request, you can only update the date of service, as long as the original date of service has not passed. Make this change through or by phone. If you need to change anything else, you must submit a new request. If we do not approve the request, you cannot make changes. You can submit an appeal by following the instructions listed in the adverse determination letter we send.

You cannot make updates to an existing advance notification or prior authorization request after the service has been delivered. If, during the service, you perform an additional or different service than was originally approved, submit the supporting clinical information for the service at the time of claim submission for prompt adjudication of your claim.