This is the most popular code used to bill for new patients being seen in the office.  Internists selected the 99204 code for 49.61% of these encounters in 2020.  The 2022 Medicare allowable reimbursement for this level of care is $169.93.  Effective January 1, 2023, this level of care requires moderate complexity MDM or a total of 45 - 59 minutes before, during and after the visit on the date of the encounter.