Please describe the information you want the. We recommend that you submit a completed Public Information Request Form.Please be specific about facility name, location, and dates. Requesting providers should. PET CT Preauthorization Form. Request preauthorization for PET or PET CT imaging services. For some services listed in our medical policies, we require prior authorization. When prior authorization is required, you can contact us to make this request. Find forms for reimbursement, authorization, claims, and more. Click on the form you need and it will open in PDF format so you can print it.