Preventive Medicine Services Reporting. By John Verhovshek. In Coding. October 31, 2018. 7 Comments. Print Post. Preventive medicine services, or “well visits,” are evaluation and management (E/M) services provided to a patient without a chief complaint. The reason for the visit is not an illness or injury (or signs or symptoms of an illness or injury), but rather to evaluate the patient’s overall health, and to identify potential health problems ….