Is a patient who visits an emergency department coded as a new or an established patients?

A patient who visits an emergency department is typically coded as a new patient. This is because emergency visits are often considered separate from a patient's regular healthcare provider visits, and they do not have an established ongoing relationship with the emergency department staff. However, if the patient has been treated at that specific emergency department within a specific time frame, there may be considerations to code them as an established patient, depending on the facility's policies.