The AAPC Certified Emergency Department Coder (CEDC) exam has 100 questions, a 240-minute time limit and a 70% passing score, and it costs $325 for one attempt or $399 for two. It tests emergency department coding: ICD-10-CM diagnoses, ED evaluation and management levels, critical care and trauma, ED procedures, and the split between facility and professional coding.
This guide walks through each of those areas, explains why emergency medicine catches out coders who are strong in other specialties, and lays out a six-week plan you can follow alongside your normal workload. If you want to test yourself while you read, start the CEDC practice test and use your first score as the baseline the plan below is built around.

What does the CEDC credential prove, and who should earn it?
The CEDC tells an employer that you can read an emergency department record and turn it into accurate, compliant codes without supervision. The ED is one of the hardest settings to code well. Records are written fast, by several clinicians, for patients whose problems are still being worked out. A single visit can include an evaluation and management service, critical care time, a laceration repair, a splint, an EKG interpretation and imaging, each with its own rules about what may be reported together.