What is the ICD-10 coding system?

ICD-10 (International Classification of Diseases, 10th Revision) is the standardized medical coding system used in the United States for classifying diagnoses, symptoms, and procedures. ICD-10-CM covers clinical diagnoses with over 70,000 codes, while ICD-10-PCS contains approximately 78,000 procedure codes used exclusively in inpatient hospital settings. All HIPAA-covered entities have been required to use ICD-10 since October 2015.

What format does the ICD-10 certification exam follow?

The format depends on which certification you pursue. The AAPC's CPC exam consists of 100 multiple-choice questions to be completed in 4 hours. The AHIMA's CCS exam includes both multiple-choice and fill-in-the-blank questions covering ICD-10-CM, ICD-10-PCS, and CPT coding. Both exams are proctored and require applying codes to real-world clinical scenarios rather than simple memorization.

How many questions are on ICD-10 certification exams?

The CPC exam from AAPC contains 100 multiple-choice questions. The AHIMA CCS exam has approximately 97 questions split between multiple-choice items and coding case studies. The AHIMA CCA exam, an entry-level option, contains 100 multiple-choice questions. Each exam allocates different time limits, with the CPC allowing 4 hours and the CCS allowing approximately 3 hours and 40 minutes.

What is the passing score for ICD-10 certification exams?

The AAPC CPC exam requires a score of 70% or higher to pass, meaning you must answer at least 70 out of 100 questions correctly. AHIMA uses a scaled scoring method for the CCS and CCA exams, with scores ranging from 100 to 400 and a passing threshold typically set at 300. AHIMA does not publish a fixed percentage-based passing score.

What topics are covered on ICD-10 certification exams?

ICD-10 certification exams cover ICD-10-CM diagnosis coding, ICD-10-PCS procedure coding, CPT and HCPCS Level II coding, medical terminology, anatomy and physiology, coding guidelines, compliance and regulatory standards, and reimbursement methodologies. You will also be tested on reading operative reports, applying modifier codes, and understanding payer-specific documentation requirements across outpatient and inpatient settings.

What are the eligibility requirements for ICD-10 certification?

The AAPC CPC exam has no strict prerequisites, though AAPC recommends completing a medical coding training program. Without two years of professional experience, you receive a CPC-A (Apprentice) credential until the experience requirement is met. AHIMA's CCS exam recommends at least three years of coding experience or completion of an AHIMA-approved coding education program. The entry-level CCA has no formal experience requirement.

How do I register for an ICD-10 certification exam?

For AAPC certifications, create an account at aapc.com, select your exam, and pay the registration fee of approximately $399 for members or $499 for non-members. For AHIMA certifications, apply through ahima.org with fees around $299 for members or $399 for non-members. Both organizations offer online proctored exams and in-person testing at approved locations throughout the year.

What are the best preparation strategies for ICD-10 certification exams?

Focus on timed practice exams to build speed, since time management is the most common reason candidates fail. Tab and highlight your codebooks thoroughly before exam day, as both major exams are open-book. Study the Official ICD-10-CM Guidelines for Coding and Reporting published by CMS, practice coding from real operative reports, and memorize the structure of ICD-10 chapters so you can locate codes quickly during the test.

ICD 10 Practice Exam

Get ready for your ICD 10 Practice certification. Practice questions with step-by-step answer explanations and instant scoring.

ICD 10 - International Classification of Diseases 10th Revision By Dr. Alexandra KimMay 12, 202664 min read

📝100-150Questions

⏱️4-5.67Hours

🎯70%Passing Score

💵$300-499Exam Fee

ICD-10 certification demonstrates your expertise in medical coding and opens doors to careers in hospitals, physician offices, insurance companies, and healthcare consulting. Certified coders earn 20-30% higher salaries than non-certified peers.

Icd 10 Practice Test - ICD 10 study guide

ICD 10 Practice Test Questions

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ICD 10 Advanced Topics

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ICD 10 Body Systems

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ICD 10 Coding Basics

ICD 10 Mock Exam on Coding Basics. ICD 10 Study Guide questions to pass on your first try.

ICD 10 Coding Guidelines

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ICD 10 Exam Fundamentals

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ICD-10 Coding Flashcards

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📝What is the purpose of the 7th character in ICD-10-CM?

The 7th character provides additional information about the encounter type (A=initial, D=subsequent, S=sequela) or specific clinical details like fracture healing status.

ICD-10 Practice Test Free

🏥How is an ICD-10-PCS code structured?

ICD-10-PCS codes have 7 characters: Section, Body System, Root Operation, Body Part, Approach, Device, and Qualifier. Each position has specific values.

ICD-10-PCS Quiz Free

⚕️What is the sequencing rule for manifestation codes?

Manifestation codes (in brackets) must be sequenced after the underlying condition. The etiology code comes first, followed by the manifestation code.

ICD-10 Coding Questions

📊What does NEC mean in ICD-10-CM?

NEC (Not Elsewhere Classified) indicates the documentation specifies a condition but no specific code exists. Use when documentation is specific but codes are not.

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ICD-10 Exam Study Guide

Master all aspects of ICD-10 medical coding with our comprehensive study guide. Each section covers essential topics you need to know for the certification exam.

What is ICD-10 and why is it important?	ICD-10 (International Classification of Diseases, 10th Revision) is the global standard for coding diagnoses (ICD-10-CM) and inpatient procedures (ICD-10-PCS). It enables accurate medical records, proper reimbursement, and healthcare data analysis.
What certifications require ICD-10 knowledge?	Major certifications include CPC (Certified Professional Coder), CCS (Certified Coding Specialist), CCS-P (Physician-based), COC (Certified Outpatient Coder), and CIC (Certified Inpatient Coder) from AAPC and AHIMA.
How many codes are in ICD-10-CM and ICD-10-PCS?	ICD-10-CM contains over 72,000 diagnosis codes organized in 21 chapters. ICD-10-PCS has approximately 87,000 procedure codes built from 7-character alphanumeric combinations.
What is the difference between ICD-10-CM and ICD-10-PCS?	ICD-10-CM codes diagnoses and is used in all healthcare settings. ICD-10-PCS codes procedures and is only used for inpatient hospital services. Outpatient procedures use CPT codes instead.

What is ICD-10 and why is it important?

ICD-10 (International Classification of Diseases, 10th Revision) is the global standard for coding diagnoses (ICD-10-CM) and inpatient procedures (ICD-10-PCS). It enables accurate medical records, proper reimbursement, and healthcare data analysis.

What certifications require ICD-10 knowledge?

Major certifications include CPC (Certified Professional Coder), CCS (Certified Coding Specialist), CCS-P (Physician-based), COC (Certified Outpatient Coder), and CIC (Certified Inpatient Coder) from AAPC and AHIMA.

How many codes are in ICD-10-CM and ICD-10-PCS?

ICD-10-CM contains over 72,000 diagnosis codes organized in 21 chapters. ICD-10-PCS has approximately 87,000 procedure codes built from 7-character alphanumeric combinations.

What is the difference between ICD-10-CM and ICD-10-PCS?

ICD-10-CM codes diagnoses and is used in all healthcare settings. ICD-10-PCS codes procedures and is only used for inpatient hospital services. Outpatient procedures use CPT codes instead.

ICD-10 Exam Score Calculator

Total Scored Questions

150

How many questions did you answer correctly?

0105150

105 out of 150 correct

70%

Required to Pass: ~70% (Estimated)

Your Score: 105 correct✓PASS

Expect to invest $1,200-3,500 for initial certification including training, materials, and exam fees. This investment typically pays for itself within 3-6 months through higher earnings.

ICD-10 Coder Career Paths

Explore the diverse career opportunities available to certified ICD-10 medical coders.

🏥

Hospital

Inpatient CoderCode diagnoses and procedures for hospitalized patients using ICD-10-CM and ICD-10-PCS. Work with complex cases including surgeries, trauma, and chronic conditions in acute care settings.

🏢

Physician

Practice CoderProcess outpatient visits for physician offices using ICD-10-CM diagnosis codes and CPT procedure codes. Handle evaluation and management coding for various specialties.

💼

Insurance

Claims ReviewerReview medical claims for accuracy and compliance at health insurance companies. Verify code selection, identify coding errors, and ensure proper reimbursement according to payer guidelines.

🏠

Remote

Medical CoderWork from home coding medical records for hospitals, physician groups, or coding companies. Enjoy flexibility while maintaining productivity standards for chart completion.

📊

Coding Auditor/Educator

Audit medical records for coding accuracy, identify compliance issues, and train other coders. Lead quality improvement initiatives and develop coding education programs.

ICD-10 Exam Day Checklist

✓Valid government-issued photo ID
✓ICD-10-CM and ICD-10-PCS code books
✓CPT and HCPCS code books
✓Exam confirmation/admission letter
✓Silent watch for time management
✓Pencils and eraser (if paper exam)
✓Light snacks and water for breaks
✓Calculator (non-programmable)

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ICD-10 Certification Renewal

📅

Renewal Cycle Every

2 Years

📚

CEUs Required

36 CEUs

💰

Renewal Fee

$100-200

Earn CEUs through AAPC/AHIMA webinars, online courses, local chapter meetings, or healthcare conferences. Many employers provide CEU opportunities as part of professional development.

ICD 10: Pros and Cons

✅Pros

+tb test icd 10 — iCD 10 exam preparation strengthens your knowledge across all domains
+Passing the exam proves competency to employers and clients
+Study materials and practice tests are widely available
+Exam-based credentials are portable across states and employers
+Clear exam objectives help focus your study plan effectively

❌Cons

−Exam anxiety can affect performance — practice tests help reduce it
−Registration fees are non-refundable if you miss your test date
−Limited retake opportunities may apply with waiting periods
−Exam content updates periodically — use current study materials
−Testing center availability may require advance scheduling

ICD 10 Questions and Answers

About the Author

Dr. Alexandra KimPhD Professional Studies, CPLP, CPTD

Certified Professional Development Expert & Niche Certification Advisor

University of Pennsylvania Graduate School of Education

Dr. Alexandra Kim holds a PhD in Professional Studies from the University of Pennsylvania and is a Certified Professional in Learning and Performance (CPLP) and Certified Professional in Talent Development (CPTD). With 17 years of corporate training and professional certification advisory experience, she helps professionals navigate specialized, emerging, and cross-industry certification programs.