December 29, 2025
Understanding Medical Decision Making (MDM) Complexity in E/M Coding

Michelle Anderson
Medical Decision Making (MDM) is the foundation of Evaluation and Management (E/M) coding. It reflects the cognitive work a provider performs when assessing a patient, reviewing data, and determining treatment options. Accurate MDM classification is essential – not only for appropriate reimbursement but also for compliance, audit readiness, and long-term revenue integrity.