Guided Notes

E/M Coding: Office Visits

Choose the right office visit level — new vs established, medical decision making, time-based coding, preventive visits, and modifier 25.

New vs established patient

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• New patient: has NOT received professional services from that physician (or another physician of the same specialty in the same group) in the past 3 years. Codes 99202–99205. • Established patient: has been seen within the past 3 years. Codes 99211–99215.

(99201 was deleted in 2021.) Getting this wrong is one of the most common E/M errors.

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