By Qamar S, 15 years in US medical billing · Last reviewed October 18, 2026
Week 5 of the free CPC exam prep pathway. Ten questions on the modifiers coders use every day, HCPCS Level II and the compliance rules every coder needs to know.
What to study next
Make a one-page cheat sheet of common modifiers and tab it in your CPT book. When you score 80% or more on all three quizzes, take the 50-question CPC practice test.
Independent study material. MedBillGuide is not affiliated with or endorsed by AAPC, AHIMA or NHA. CPC® is a registered trademark of AAPC. Practice questions are original and are not taken from any certification exam. Always study with current official code books. See our Disclaimer.