Evaluation and Management codes describe the cognitive work a provider does — assessing a patient, reaching a diagnosis, deciding on treatment — as distinct from procedures performed.
E/M covers office and outpatient visits, hospital inpatient and observation care, emergency department services, consultations, nursing facility services, home and residence services, critical care, prolonged services, and preventive medicine visits. Almost every provider encounter generates one.
Since the guideline revisions, level selection for most E/M categories is based on either medical decision making or total time on the date of the encounter, with the coder choosing whichever supports the higher appropriate level. Medical decision making is scored across three elements — the number and complexity of problems addressed, the amount and complexity of data reviewed and analysed, and the risk of complications or morbidity from patient management.
Is there a certification? There is no single standalone E/M credential. E/M is heavily tested within AAPC's CPC and AHIMA's CCS, and E/M auditing competency is assessed within AAPC's CPMA (Certified Professional Medical Auditor). This program builds specialty competency and strengthens your position for all three.