Open book doesn't mean easy: how to prep your code books for the CPC exam

The CPC exam lets you bring your code books. New candidates hear that and relax a little. Experienced candidates hear that and start tabbing.

Because here's the thing: the books aren't a safety net. They're a tool, and like any tool, they're only fast in trained hands. The exam gives you roughly two and a half minutes per question. A code lookup that takes you ninety seconds because you're flipping around the CPT index is a question you've nearly lost, even if you get it right.

Here's how to turn your books into an advantage before exam day.

Know the rules first

AAPC allows the current-year CPT, ICD-10-CM, and HCPCS Level II manuals. You can tab them, highlight them, and write notes in them, with one hard line: no loose pages, no sticky notes with writing that could work as extra reference material, nothing taped or stapled in. Handwritten notes in the margins are fine. Check AAPC's current exam policies before you mark anything, because a book that breaks the rules can be rejected at check-in.

Tab for speed, not decoration

The goal of tabbing is simple: get to any section in under ten seconds without using the index. Tab the things you'll visit constantly. In CPT, that's the start of each section (E/M, Anesthesia, Surgery subsections, Radiology, Path/Lab, Medicine) plus the pages you personally keep returning to during practice. In ICD-10-CM, tab the Official Guidelines, the Neoplasm Table, and the Table of Drugs and Chemicals.

Notice the phrase "you personally." A tabbing layout copied from someone else's photo helps less than one that grew out of your own practice sessions. If you never look something up, the tab is clutter.

Write the notes your future panicked self will need

Margin notes are legal, so use them where they pay. Near the E/M section, a short reminder of how you pick a level. Next to global surgery rules, what's included in the package. At the top of a subsection, the parenthetical instructions you keep forgetting exist. These notes work because you wrote them, in your own shorthand, at the moment you got something wrong.

One warning from experience: don't copy whole tables or cheat sheets into the covers. It wastes hours you could spend on practice questions, and reading your own transcription is slower than knowing where the original lives.

Drill with the exact books you'll bring

This is the step most people skip. Your practice exams need to happen with your marked-up books on the desk, not with a clean PDF or a coding app with a search bar. Search bars don't exist in the exam room. The muscle memory of "where is this in MY book" is a real, trainable skill, and it's worth several points on exam day.

Run full-length timed practice exams that way and something interesting happens around the third one: the lookups stop being events. Your hands find the Neoplasm Table without your brain getting involved. That's the state you want to walk in with.

If you don't have a source of full-length CPC mocks yet, our exam simulator has seven of them in the real 100-question, 4-hour format, each question with a full rationale. Put your tabbed books next to your keyboard, start the timer, and treat it like the real thing. The books will feel like an old friend by the time it counts.