The Certified Professional Coder (CPC) credential awarded by the American Academy of Professional Coders (AAPC) is the gold standard for medical coding professionals in outpatient and physician-based settings. A CPC exam practice test PDF gives you a printable, offline resource to work through realistic coding scenarios, master CPT/ICD-10-CM/HCPCS code selection, and build the exam stamina you need for the grueling five-hour and forty-minute CPC exam. Download our free printable study guide below and start your preparation today.
The CPC exam is administered by the AAPC and consists of 100 multiple-choice questions covering the full breadth of outpatient medical coding. Candidates have 5 hours and 40 minutes to complete the exam — roughly 3.4 minutes per question. The exam is open book: you are permitted to bring your own annotated copies of the CPT manual, ICD-10-CM codebook, and HCPCS Level II manual. The passing score is 70%, meaning you must answer at least 70 questions correctly.
The CPC is not a memorization test. Because all three code books are allowed, the exam tests your ability to navigate the code books quickly and accurately under time pressure. Coders who have not tabbed, annotated, and practiced with their manuals extensively often run out of time — not because they lack knowledge, but because they cannot locate codes efficiently. Your PDF practice test preparation should therefore focus on timed simulation, code lookup speed, and scenario-based reasoning rather than rote memorization of code numbers.
CPC examination content is distributed across the major body systems and CPT sections, with particular weight on Surgery subsections, Evaluation and Management (E/M) coding, and compliance/regulatory knowledge. The AAPC publishes a detailed exam blueprint showing the percentage of questions from each domain — reviewing this blueprint should be the first step in your study plan.
Current Procedural Terminology (CPT) codes, published annually by the American Medical Association, are the backbone of outpatient billing and comprise the largest portion of CPC exam questions. Understanding CPT structure — with its numeric five-digit codes, modifiers, add-on codes, and unlisted procedure codes — is essential for passing the CPC.
Surgery subsections account for the single largest block of CPT content on the exam. You must understand surgical package concepts (global period, what is/isn't included), wound repair classification (simple/intermediate/complex), and how to code procedures across body systems including the integumentary system, musculoskeletal system, respiratory system, cardiovascular system, digestive system, urinary system, and reproductive systems. Procedures involving the eye and ear, nervous system, and endocrine system also appear.
Evaluation and Management (E/M) coding is one of the most heavily tested areas on the CPC exam. You must understand the 2021 revised E/M guidelines, which shifted outpatient office visit level selection from the three-key-component (history/exam/medical decision making) model to a two-component model based on total time or medical decision making alone. E/M questions test your ability to select the correct level for new vs. established patients, apply time-based billing rules, and recognize when modifiers 25 or 57 are required.
Anesthesia coding uses a unique base unit + time unit formula rather than CPT procedure codes. You must understand the anesthesia code format (five-digit codes beginning with 00000), conversion factors, physical status modifiers (P1–P6), qualifying circumstances add-on codes, and how to calculate total anesthesia units. The exam typically includes two to four anesthesia questions.
Radiology coding requires knowledge of the technical vs. professional component (modifier 26 and TC), how to code diagnostic imaging versus therapeutic radiology, supervision and interpretation guidelines, and contrast/non-contrast distinctions. Common radiology codes for X-ray, CT, MRI, ultrasound, and nuclear medicine appear regularly.
Pathology and Laboratory codes cover organ/disease panels, drug testing codes, microbiology, surgical pathology specimen levels, and cytopathology. Understanding the qualitative vs. quantitative distinction in drug testing and the panel bundling rules is particularly important.
Medicine section codes cover immunizations (administration codes + product codes), vaccine counseling, ophthalmology services, cardiac monitoring (Holter, event monitor), pulmonary function testing, physical medicine and rehabilitation, and psychiatric services. Knowing when to report administration codes separately versus bundled with the E/M visit is a common exam challenge.
The International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM) is used for diagnosis coding on all professional and outpatient claims. The CPC exam requires strong ICD-10-CM skills — not just finding codes, but applying official coding guidelines correctly.
The ICD-10-CM Official Guidelines for Coding and Reporting are a critical study document. These guidelines are updated annually and govern sequencing, combination coding, code first/use additional code instructions, and default code selection. Section I (General Coding Guidelines), Section II (Selection of Principal Diagnosis for hospital inpatients — less relevant for CPC but still tested), Section III (Reporting Additional Diagnoses), and Section IV (Outpatient Coding Guidelines) are all fair game.
High-yield ICD-10-CM topics for the CPC exam include: diabetes mellitus combination codes and manifestation sequencing, hypertension coding (essential vs. secondary, hypertensive heart disease, hypertensive chronic kidney disease), neoplasm table navigation (primary/secondary/in situ/benign/uncertain behavior), injury coding using S codes with 7th character extensions (A for initial encounter, D for subsequent encounter, S for sequela), fracture coding (open/closed, displaced/nondisplaced), and Z codes for encounters not due to active disease (preventive care, history, status codes, screening).
Laterality — coding left vs. right vs. bilateral — is a feature of ICD-10-CM absent from ICD-9-CM. Many exam questions test whether candidates correctly apply laterality codes for conditions involving paired organs or bilateral structures.
Healthcare Common Procedure Coding System (HCPCS) Level II codes are alphanumeric codes (beginning with a letter A–V followed by four digits) used to report supplies, durable medical equipment, drugs, ambulance services, and other items not covered by CPT. For CPC exam purposes, the most important HCPCS domains are: durable medical equipment (E codes), drugs administered by injection (J codes), ambulance services (A codes), and orthotics/prosthetics (L codes).
Drug coding with J codes is a frequent exam topic. You must understand how to calculate units from the dosage ordered versus the code descriptor dosage, when to use HCPCS drug codes versus the CPT immunization administration codes, and how to report brand vs. generic drugs when HCPCS specificity is required. The exam may present a case with a specific drug and dose and ask you to select the correct J code and number of units.
Modifiers are two-digit codes (or alphanumeric HCPCS modifiers) appended to CPT or HCPCS codes to indicate that a service was altered in some way but not changed in its definition. Mastery of modifiers is essential for CPC exam success — modifier questions appear throughout the exam. The most frequently tested CPT modifiers include:
The National Correct Coding Initiative (NCCI) edits bundle certain code combinations and deny separate reimbursement. Understanding when modifier 59 (or its more specific alternatives XE, XS, XP, XU) can appropriately override NCCI edits — and when it cannot — is a sophisticated exam topic that separates advanced candidates from beginners.
Medical coding requires functional anatomy knowledge — not at the level of a physician, but enough to understand procedure descriptions in operative reports, identify the body system being treated, and apply the correct CPT subsection. CPC exam questions regularly present operative note excerpts that require identifying anatomical structures to select the correct code.
High-yield anatomy areas for CPC candidates include: the layers of skin (epidermis, dermis, subcutaneous tissue — critical for wound repair and excision coding), abdominal anatomy (peritoneum, omentum, visceral organs for laparoscopic procedure coding), cardiovascular anatomy (coronary arteries, cardiac chambers, bypass graft terminology), orthopedic anatomy (joint spaces, ligaments, tendons, bone fracture sites), and urinary system anatomy (kidneys, ureters, bladder, urethra for urology coding).
Medical terminology fluency is a prerequisite for CPC exam success. Coding professionals must decode surgical procedure names, pathology diagnoses, and documentation descriptors rapidly. Focus on mastering the root words, prefixes, and suffixes most commonly encountered in coding practice: prefixes for anatomical positions (endo-, peri-, retro-, supra-), root words for organs and body systems, and suffixes for procedures (-ectomy, -otomy, -oscopy, -plasty, -rraphy, -stomy).
A significant portion of the CPC exam addresses medical coding compliance — the legal and regulatory framework governing accurate and ethical billing. The Office of Inspector General (OIG) Work Plan and Compliance Program Guidance documents define high-risk billing areas subject to audit and fraud investigation. CPC candidates must understand the False Claims Act, HIPAA Privacy and Security Rules, anti-kickback statutes, and the physician self-referral law (Stark Law).
Upcoding (billing a higher code than documented), unbundling (reporting components of a bundled service separately to increase reimbursement), and improper modifier use are compliance hot topics. The CPC exam tests whether candidates can identify compliant vs. non-compliant coding in scenario-based questions. Understanding the difference between a coding error and fraud, and the concept of voluntary disclosure, are also tested.
The CPC exam permits three reference books: your annotated CPT manual, ICD-10-CM codebook, and HCPCS Level II manual. This open-book format is often misunderstood by first-time candidates who think it means the exam will be easy. The opposite is true — the exam is designed assuming you have the books. Questions are written to test application, not memorization, so simply knowing where to look is not enough. You must be able to find codes quickly and apply guidelines correctly under time pressure.
Effective open-book strategy means your manuals should be heavily tabbed and annotated before exam day. Use sticky tabs for major CPT sections (Surgery subsystems, E/M, Anesthesia, Radiology, Pathology, Medicine), ICD-10-CM chapter starts, and key guideline sections. Write margin notes for common coding rules, modifier applications, and bundling notes. Practice navigating your annotated manuals under timed conditions during your study period so the physical navigation becomes automatic on exam day.
The CPC passing score is 70% (70 out of 100 questions). Candidates who score below 70% on their first attempt receive an "Apprentice" designation and may retake the exam. AAPC allows multiple retake attempts with a fee per attempt. Many candidates find that targeted review of weak domain areas between attempts — using domain-specific practice tests — produces significant score improvement on retake.
First-time pass rates for the CPC exam are approximately 50–60% industry-wide, reflecting the exam's genuine difficulty. Candidates who complete a structured CPC prep course, work through at least 300–500 practice questions across all domains, and simulate timed exams with their annotated manuals consistently achieve pass rates significantly above the average. Our free CPC practice test PDF contains questions across all major domains — download it, print it, and work through it with your code books to simulate real exam conditions.