Medical And Dental Practice Activities ISIC Code 8620. This class includes Medical consultation and treatment in the field of general and specialized medicine by general practitioners and medical specialists and surgeons. Dental practice activities of a general or specialized nature, e.g. dentistry, endodontic and pediatric dentistry; oral pathology. Orthodontic activities. Family planning centers provide medical treatment, such as sterilization and termination of pregnancy, without accommodation. These activities can be carried out in private practice, group practices, hospital outpatient clinics, also in clinics such as those attached to firms, schools, homes for the aged, labor organizations, and fraternal organizations, as well as in patients' homes. Dental activities in operating rooms. Private consultants' services to inpatients.