Medical necessity is a core aspect of all healthcare services. A physician cannot simply provide medical care to a patient unless it is absolutely medically necessary. Some of the services or procedures they perform may deny as not medically necessary. These services include routine checks, some screening tests, radiology or imaging procedures, and certain experimental procedures are usually denied as not medically necessary. To ensure that the services are a medical necessity RCM staff and billers need to know what medical necessity is and how it works in the insurance companies. This particular article explains providers and billers exactly that!