ICD-10-CM Coding Practice Questions
5 of 100 questions on the CPC exam, in AAPC’s content breakdown
100 questions across all eighteen areas in 4 hours, with a score for ICD-10-CM so you know where you stand.
Free ICD-10-CM drillThe provider documents hypertension and chronic kidney disease stage 4, with no statement linking them. How is this coded?
ICD-10-CM on the CPC
ICD-10-CM is 5 of the 100 questions on the CPC exam, and AAPC notes that diagnosis questions also appear in the CPT areas and the cases. These questions test diagnosis coding across the chapters and the Official Guidelines that decide sequencing.
- Share of the exam
- 5 of 100 questions, as AAPC lists them
- Our drill
- 10 questions from 29 ICD-10-CM questions, untimed, an explanation after every answer; one free attempt, unlimited with a pass
What ICD-10-CM questions test
- Diabetes combination codes and the long-term drug use codes that go with them
- Hypertension with heart disease and chronic kidney disease, and the presumed link
- Injuries, fractures and burns: seventh characters, sequencing and external cause codes
- Poisoning versus adverse effect, pregnancy and Z3A weeks, neoplasm history and chemotherapy encounters
- Z codes for screening, routine exams and immunizations, and confirmed versus suspected infections
Sit the full exam under the real clock
100 questions across all eighteen areas in 4 hours, with a score for ICD-10-CM so you know where you stand.
Free ICD-10-CM drillHow to study it
- Always start in the Alphabetic Index and confirm in the Tabular List; read every note under the code.
- Learn the hypertension rules: CKD is presumed linked, heart disease is presumed linked, and both use I13.
- Learn the seventh characters A, D and S, and when the placeholder X is needed.
- Take the ICD-10-CM drill until you score 80% or better.
Common questions
How many ICD-10-CM questions are on the CPC exam?
AAPC lists 5 ICD-10-CM questions out of 100, and diagnosis codes also appear in the CPT areas and the 10 cases.
Which ICD-10-CM year is on the exam?
AAPC updates U.S. exams every January 1 to that year’s code books and allows the current or preceding year’s books. Our questions use codes valid in both the 2026 and 2027 code sets.
100 questions across all eighteen areas in 4 hours, with a score for ICD-10-CM so you know where you stand.
Free ICD-10-CM drillThe other CPC areas
- Medical Terminology
- Anatomy
- Compliance and Regulatory
- Coding Guidelines
- HCPCS Level II
- CPT 10000 Series: Integumentary System
- CPT 20000 Series: Musculoskeletal System
- CPT 30000 Series: Respiratory, Cardiovascular, Hemic and Lymphatic, Mediastinum and Diaphragm
- CPT 40000 Series: Digestive System
- CPT 50000 Series: Urinary, Male and Female Reproductive, Maternity and Delivery
- CPT 60000 Series: Nervous System
- Radiology
- Pathology and Laboratory
- Medicine
- Evaluation and Management (E/M)
- Anesthesia
- Cases (Medical Record Coding)
- CPC practice exam (100 questions, 4 hours)
- Mixed drill: all eighteen areas
- CPC practice test: exam facts and every area
Sources
- AAPC: Taking the CPC exam (format, time, passing score, approved books, questions per area)
- AAPC: CPC certification (what the credential covers, CEU requirement)
- AAPC: How much does the exam cost?
- AAPC: What is the Apprentice status?
- AAPC: Why is there an annual exam blackout period?
- AAPC Exam Agreement (annual January 1 update, exam rules)
- CMS: ICD-10-CM code files and Official Guidelines for Coding and Reporting
- CMS: HCPCS Level II quarterly code files
- CMS: National Correct Coding Initiative (NCCI) edits and policy manual
Original practice questions written to AAPC’s published CPC content areas; they are not AAPC exam or practice exam questions. CPT codes are cited by number only, and their descriptions are in the AMA’s CPT Professional Edition. Independent practice, not affiliated with or endorsed by AAPC or the American Medical Association. CPC is a registered trademark of AAPC. CPT is a registered trademark of the American Medical Association.