This 25-question test isolates ICD-10-CM diagnosis coding: the piece of the CPC exam where sequencing rules, combination codes, and Official Guidelines conventions decide whether an answer is defensible. Every question mirrors a realistic chart-note scenario — a laterality call, an Excludes1 note, a 7th-character assignment — because that’s the format the real exam uses. Answer, then read the explanation whether you got it right or wrong; each one names the exact guideline or convention being tested, so a miss tells you precisely which section of the ICD-10-CM Official Guidelines to review next. Free, instant feedback, no sign-up.
Take the ICD-10-CM Practice Test
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Frequently Asked Questions
How many ICD-10-CM questions are in this test?
25 original questions, drawn from the full 150-question mbcpractice.com bank and filtered to ICD-10-CM only. Every question has its own governing-rule explanation.
What ICD-10-CM topics does this test cover?
Code structure and 7th characters, Excludes1/Excludes2 notes, combination codes (like hypertension with CKD and diabetes with a manifestation), sequela coding, sequencing rules for neoplasms and sepsis, and Z-code usage for screening, history, and aftercare.
Is this different from the full CPC practice exam on mbcpractice.com?
It’s the same original question bank, filtered to just the ICD-10-CM questions. Take the full 150-question test for a complete CPC-style mix across every domain, or use this page to drill diagnosis coding specifically.
Want the full exam experience? Take the complete 150-question CPC practice test. Or keep drilling: CPT Practice Test · HCPCS Practice Test.