Test yourself and advance your care planning knowledge. Advance care planning (ACP) is likely a small, but extremely significant, service your office can provide for terminally ill patients. But how well do you know the CPT® guidelines for ACP? Do you know who can perform the service, when and how often can you bill for ACP, and what is the best way to document it? See if you can answer these four questions correctly and rise to the level of ACP expert. Question 1: What comprises ACP services, and do the services have to result in the production of an advanced directive for the patient? Question 2: What two elements of ACP must be documented, and how is that accomplished? Question 3: Who can bill for ACP services? Question 4: How often can ACP services be billed? Think you know the answers? Click here to know the Answers.