About COC Exam Prep
An independent practice platform for the Certified Outpatient Coder (COC) exam - real questions across every exam domain, each with a plain-language explanation.
What's on the COC exam
The Certified Outpatient Coder (COC) exam is organized into 10 knowledge domains. It has 100 questions and is completed in 4 hours. Each domain makes up a different share of the exam, so the most efficient way to prepare is to know where the weight sits and practice accordingly:
- Medical Terminology7% of the exam
- Anatomy7% of the exam
- Coding Guidelines3% of the exam
- Payment Methodologies13% of the exam
- Compliance3% of the exam
- ICD-10-CM15% of the exam
- HCPCS Level II7% of the exam
- CPT13% of the exam
- Surgery and Modifiers22% of the exam
- Cases10% of the exam
Every practice question on this site is organized across these 10 domains, so your study tracks the real exam structure instead of guesswork. As you answer, the per-domain analytics surface the areas still costing you points, so your review goes where it moves your score.
What we believe good exam prep looks like
Realistic practice beats passive reading. Every question is written to mirror the style and difficulty of the real exam, with a clear explanation of why the right answer is right and the others aren't.
Your weak spots should find you. Domain analytics, mistake review, and re-drilling are built in, so study time goes where it moves your score.
Pricing should be simple. One payment for a fixed access window matched to your exam date. No subscription, no auto-renewal, and 10 free questions to try before you spend anything.
Get in touch
Questions, feedback, or something not working? Email support@boardmentor.study - candidate messages are read and answered.