First, congratulations that your provider wants to communicate with you! I can't tell you how many people on this board are envious that you have a physician who is seeking your advice.
Secondly, familiarize yourself with the E&M guidelines, in terms of what needs to be documented, and what is appropriate to bill for. Look at your local contractor's billing guides to clarify any additional expectations. This kind of work is where your research skills will be put to good use. I think you're learning early what all coders eventually find out....just passing the exam doesn't make you a coder. Learning, and applying what you learn about the different scenarios and aspects of the revenue cycle is what makes you a coder.
To answer your question, your provider can bill for an office visit if there is a chief complaint, there is medical necessity and key components or appropriate time is documented. Look at your E&M guidelines to determine the amount of time (it will be different for each patient, based on length of discussion), and provider must document total time and that greater than 50% of that total time is spent in counseling and coordination of care. You cannot, however bill a 99211 on the same day as another E&M, but you can bill a 211 if the patient comes in only for a BP check, as long as your incident-to requirements are met (check CMS E&M guidelines for a discussion of incident-to).
