n order for you to get a PET scan covered by Medicare, it must be ordered by a doctor for medically necessary reasons. In terms of private insurance companies, some reasons for denial include:
The approval required prior authorization
There's been an error
There are some additional steps that were needed before the approval
The insurance company has deemed the scan experimental or investigational
If you have a private insurance plan, it's always a good idea to look through the details of your coverage and make sure you're taking all the right steps. That said, there is usually a process for appealing a denied claim.