E/M Coding Levels 1–5: Decision‑Making and Time Criteria

Evaluation & Management (E/M) services are categorized into five levels based on Medical Decision Making (MDM) or Total Time (2023+ guidelines).

Level	MDM Complexity	Typical Time (min)
99202 / 99212	Straightforward	15–29 / 10–19
99203 / 99213	Low	30–44 / 20–29
99204 / 99214	Moderate	45–59 / 30–39
99205 / 99215	High	60–74 / 40–54

First number = new patient; second = established patient.

MDM Components

1. Number & complexity of problems.
2. Amount & complexity of data reviewed.
3. Risk of complications/management.

Select level by meeting 2 of 3 MDM elements or by total time on date of encounter.