What is the criteria for medical necessity?

The criteria for medical necessity typically include the following: the service or treatment must be appropriate and effective for the patient's condition, it must be consistent with generally accepted standards of medical practice, and it should be delivered in the least intensive setting that is safe and effective. Additionally, it must be aimed at improving the patient's health outcome and not be primarily for the convenience of the patient or provider. Insurers often require documentation to support these criteria before approving coverage.