When Is a Prolonged Service Code Able to Be Used

When is a prolonged service code able to be used?

A) When prolonged service involving direct patient care contact is provided beyond the usual service in the outpatient setting or inpatient setting
B) When face-to-face or non-face-to-face services are performed on the patient's unit during the same session
C) Reported as an "add-on" code in addition to the initial evaluation and management services code for that patient
D) All of the above are correct regarding a prolonged service code