The 3 key elements in determining the level of service for an office visit using MDM are: The 3 key elements in determining the level of service for an office visit using MDM are: History, Exam, and MDM History, SDOH, and MDM Number & Complexity of Problems Addressed, Amount and/or Complexity of Data to be Reviewed and Analyzed, and Risk of Complications and/or Morbidity or Mortality of Patient Management Problems Addressed, History, and Exam