After a healthcare provider orders a healthcare service for a patient, the providers's staff will contact the patient's insurer to determine if they require a prior authorization check to be run. If so, a manual process is initiated. The process to obtain prior authorization varies from insurer to insurer, but typically involves the completion and faxing of a prior authorization form. At this point, the medical service may be approved, rejected, or additional information may be requested. If a service is rejected, the healthcare provider may file an appeal based on the provider's medical review process..