- CASCC is an AAPC specialty credential for coders who already work in the ambulatory surgery center setting.
- The exam has 100 multiple-choice questions, a four-hour limit, and is open-book with a 70% passing score.
- Registration costs $325 for one attempt or $399 for two attempts, and current AAPC membership is required.
- Seven domains cover operative-note coding, ASC surgery types, ancillary/drug coding, reimbursement rules, regulations, terminology, and anatomy.
What Is the CASCC Certification?
The Certified Ambulatory Surgery Center Coder (CASCC) credential is a specialty coding certification built for professionals who assign codes for outpatient surgical procedures performed in freestanding ambulatory surgery centers. It is not a general medical coding credential, and it is not the same "CASCC" acronym used by any other organization. If you're still confused about the basics, our companion pieces on What Is CASCC? and CASCC Meaning break down the terminology in plain language.
Unlike entry-level coding exams, CASCC assumes you already understand advanced medical terminology, anatomy, pathophysiology, and the interplay between CPT, ICD-10-CM, and HCPCS Level II codes specifically as they apply to same-day surgical settings. It is designed for people who read operative notes for a living, not people who are learning to code for the first time.
Who Grants CASCC and How It's Delivered
CASCC is issued by AAPC (the American Academy of Professional Coders). The exam itself is delivered through Meazure Learning, and candidates can choose between two delivery paths: a live remote proctored exam using ProctorU, or an in-person session at a computer-based testing center. Both formats test the identical content and question count.
If you select the remote option, you'll need a private room free of interruptions, a reliable internet connection, a computer, an external webcam, and a government-issued photo ID that matches your registration name exactly. These aren't suggestions - they're checked before you're allowed to start the exam, so confirm your setup well ahead of your scheduled time.
Exam Format, Fees, and Registration Mechanics
The CASCC exam consists of 100 proctored multiple-choice questions administered over a four-hour window. It is open-book, meaning you're permitted to use your approved reference materials during the test - but only the specific books allowed (covered below). Passing requires a score of 70%, which works out to 70 correct answers out of 100.
Registration requires current AAPC membership; you cannot sit for the exam without it. Pricing structure:
| Attempt Option | Cost |
|---|---|
| Single attempt | US$325 |
| Two attempts | US$399 |
The two-attempt option is worth serious consideration if you're at all uncertain about your readiness, since it costs relatively little more than a single attempt but gives you a built-in retake if you fall short the first time. For a full breakdown of every fee, membership cost, and renewal expense, see CASCC Certification Cost 2026: Complete Pricing Breakdown.
One more logistical detail that trips people up: if you're testing on the platform-eBook format instead of print books, you must select that format at least 48 hours before your exam date, and you cannot mix formats - it's either all print or all platform eBook. Scheduling windows and deadlines are covered in CASCC Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Key Takeaway
Lock in your reference book format (print or eBook) at least 48 hours before exam day - last-minute switches aren't allowed, and showing up with the wrong format can cost you the sitting.
The Seven CASCC Exam Domains
AAPC organizes the CASCC exam around seven tested competency areas. Understanding what each domain actually demands - not just its title - is the difference between generic exam prep and CASCC-specific prep. For a deep dive into each area with sample question logic, read CASCC Exam Domains 2026: Complete Guide to All 7 Content Areas.
Domain 1: Operative Note Dissection and Code Assignment
You'll be given operative note language and asked to extract the correct ICD-10-CM, CPT, HCPCS Level II codes, and applicable modifiers. This is the heaviest-weighted skill on the exam in practical terms - you must read surgical documentation the way a surgeon writes it, not the way a textbook simplifies it.
- Practice pulling codes directly from real (de-identified) op notes, not just code descriptions
Domain 2: Types of Surgery Performed in the ASC Setting
Candidates need working knowledge across the range of surgical specialties commonly performed outpatient - orthopedics, ophthalmology, GI endoscopy, pain management, ENT, and more - and how each is coded differently in an ASC versus a hospital.
- Know which specialties dominate ASC volume and their common CPT families
Domain 3: Ancillary Procedures, Drugs, and Biologicals
Beyond the primary surgical code, you must correctly code ancillary services performed alongside surgery, plus the drugs and biologicals administered - an area frequently underestimated by candidates who focus only on the main procedure.
- Review HCPCS Level II drug/biological code logic and units billing
Domain 4: ASC Reimbursement Rules
This domain tests your grasp of multiple-procedure reductions, device-intensive procedure payment logic, and discontinued procedure coding (modifiers indicating a procedure stopped before completion). These rules are unique to the ASC payment system and rarely overlap with hospital or physician-office reimbursement logic.
- Master when and how multiple, device-intensive, and discontinued procedure rules change payment
Domain 5: Regulatory Rules
Federal and state regulatory standards affecting ASC billing and coding fall here. Candidates should understand the compliance frameworks that shape what can and cannot be billed in this setting.
Domain 6: Medical Terminology
Advanced terminology across surgical specialties - not introductory vocabulary. Expect terms specific to orthopedic, ophthalmologic, and GI procedures at minimum.
Domain 7: Anatomy and Physiology
A solid anatomy and physiology foundation supports accurate code selection across every other domain, particularly Domain 1's operative note work.
Because the current exam format leans heavily on applying codes to real operative-note scenarios and on ASC-specific reimbursement logic (multiple, device-intensive, and discontinued procedures), candidates who treat this as "just another CPT exam" tend to struggle. For an honest assessment of how challenging this really is compared to other coding credentials, see How Hard Is the CASCC Exam? Complete Difficulty Guide 2026.
Approved References and Code Books
Because the exam is open-book, knowing exactly what you're allowed to bring matters as much as knowing the content. Approved references are:
- AMA CPT Professional Edition
- ICD-10-CM code book
- HCPCS Level II code book
Current-year editions are recommended, though the current year or the immediately preceding year is permitted. You're allowed exactly one copy of each book - no duplicates, no supplemental guides, no personal notes tucked inside the covers. Tabbing and highlighting your books ahead of time is typically allowed and strongly advisable given the four-hour time limit across 100 questions.
Who Earns the CASCC and Why
CASCC is aimed squarely at coders who already have experience in the ambulatory surgery center environment and want formal recognition of that specialization. Facility coding managers, ASC billing departments, revenue cycle teams, and coding consultants who work with surgery centers are the typical audience. If you're wondering whether the credential fits your career stage, CASCC Requirements 2026: Eligibility, Prerequisites & How to Qualify covers eligibility considerations in detail, and CASCC Jobs looks at where this credential tends to open doors.
For coders weighing whether the investment of time and the $325-$399 exam fee pays off against career opportunities and earning potential, our detailed Is the CASCC Certification Worth It? Complete ROI Analysis 2026 and CASCC Salary Guide 2026: Complete Earnings Analysis articles walk through the considerations without relying on guesswork.
Maintaining the Credential
Passing the exam is only the starting point. To keep the CASCC active, you must maintain current AAPC membership every year and complete 36 continuing education units (CEUs) every two years for this single credential. Of those 36 CEUs, eight must be specifically ASC-focused - a requirement AAPC enforces to make sure certified coders stay current with evolving ASC payment and coding rules rather than letting the credential go stale.
Key Takeaway
Budget for ongoing costs beyond the exam fee: annual membership dues and a recurring CEU requirement, eight units of which must be ASC-specific, are part of holding the CASCC long-term.
A Domain-Focused Prep Timeline
Generic study techniques like spaced repetition or timed practice blocks only help if they're pointed at the right domains at the right time. Below is a sample structure that maps directly onto the seven CASCC domains rather than generic exam advice.
Foundations: Domains 6 and 7
- Refresh advanced medical terminology and anatomy/physiology tied to common ASC surgical specialties
- Build a personal glossary of terms you consistently mix up
Core Surgery Knowledge: Domain 2
- Study CPT code families by specialty (ortho, ophtho, GI, pain management)
- Map each specialty to its most frequently tested code ranges
Applied Coding: Domains 1 and 3
- Practice extracting codes from full operative notes under time pressure
- Drill ancillary procedure and drug/biological coding scenarios
Reimbursement and Regulation: Domains 4 and 5
- Master multiple, device-intensive, and discontinued procedure payment logic
- Review federal and state regulatory frameworks affecting ASC billing
Simulated Testing and Reference Speed
- Run full-length, timed practice exams under open-book conditions
- Tab and index your CPT, ICD-10-CM, and HCPCS books for faster lookups
For a structured, week-by-week plan with more detail than the outline above, see our full CASCC Study Guide 2026: How to Pass on Your First Attempt. And if you want a condensed reference to keep nearby during final review, the CASCC Cheat Sheet 2026: One-Page Review of Must-Know Facts summarizes the highest-value facts in one page.
Whichever schedule you follow, practicing under realistic, timed conditions matters more than passive reading. Working through timed question sets on our CASCC practice test platform before exam day helps you calibrate your pace across all 100 questions within the four-hour limit.
Frequently Asked Questions
You need 70% correct, which is 70 out of 100 questions. See CASCC Passing Score 2026: Exactly What You Need to Pass for more detail on how scoring works.
Yes. You're allowed one copy each of the AMA CPT Professional Edition, ICD-10-CM, and HCPCS Level II code books, in either current-year or the immediately preceding year's edition.
Yes, current AAPC membership is required to register and sit for the CASCC exam, in addition to the exam fee itself.
Yes, through a live remote proctored session using ProctorU, provided you have a private room, reliable internet, a computer, an external webcam, and a matching government-issued photo ID. In-person computer-based testing centers are also available.
You need 36 CEUs every two years for the CASCC credential, including at least eight CEUs specific to ASC coding topics, plus ongoing annual AAPC membership.