Our Dr. is doing HCG Diet classes in which the patients come every other week to meet and go over some information. They group of patients meet for about an hour and he goes over different information in regards to the diet and steps they need to take. They are weighted and measured every week. They take a pill everyday that he prescribes to them. I know this is not much information but based on this what cpt and diagnosis codes should be coded? Any advise would help!