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Case 001 (Random vs Targeted Sampling): During a provider audit workpaper review, the auditor must document a defensible finding. You must estimate an overall error rate across a broad provider population. Which sampling approach is strongest?

Select only the highest-dollar claims to maximize repayment findings.

Use a statistically appropriate random sample aligned to the audit objective and defined population.

Use convenience sampling from whichever records are easiest to retrieve.

Pull only previously denied claims because they represent all coding risk.

to track

2026 Statistics

Key Facts: CPMA Medical Auditor Exam

100

Exam Questions

AAPC format guidance

Exam Time

AAPC format guidance

70%

Passing Score

AAPC format guidance

$399/$499

Core Exam Pricing

AAPC support pricing page

200

Practice Questions Here

OpenExamPrep CPMA bank

2026

Compliance Refresh

Current-year audit/compliance prep cycle

AAPC positions CPMA as a 100-question, 4-hour exam with a 70% passing threshold. Strong 2026 preparation combines statistically sound audit planning, defensible E/M and modifier review logic, overpayment/compliance risk handling, and measurable corrective action plus re-audit cycles.

Sample CPMA Medical Auditor Practice Questions

Try these sample questions to test your CPMA Medical Auditor exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 200+ question experience with AI tutoring.

1Case 001 (Random vs Targeted Sampling): During a provider audit workpaper review, the auditor must document a defensible finding. You must estimate an overall error rate across a broad provider population. Which sampling approach is strongest?

A.Select only the highest-dollar claims to maximize repayment findings.

B.Use a statistically appropriate random sample aligned to the audit objective and defined population.

C.Use convenience sampling from whichever records are easiest to retrieve.

D.Pull only previously denied claims because they represent all coding risk.

Explanation: When the objective is population-level estimation, random sampling supports less biased error-rate measurement.

2Case 002 (Statistical Extrapolation): In a compliance committee meeting, audit results are being translated into corrective action. Leadership asks whether sample findings can be projected across the full claim universe. What is required first?

A.Extrapolate any targeted sample as long as error severity seems high.

B.Project findings only when at least one provider disputes the audit.

C.Confirm statistically valid sampling methods and documented assumptions before extrapolating results.

D.Avoid documenting assumptions because projections are inherently estimates.

Explanation: Extrapolation should only follow defensible statistical design and clear method documentation.

3Case 003 (Audit Scope and Criteria): While validating sampled claims, the lead auditor is checking coding and documentation consistency. Before record review begins, what should the audit plan define most clearly?

A.Only projected financial impact, with scope determined after findings emerge.

B.Only provider specialty, since objective details can be added at report time.

C.Only payer contract terms, without coding/compliance criteria.

D.Objective, scope boundaries, population, criteria, and documentation standards for review.

Explanation: Clear audit design requires explicit objectives and criteria so findings are reproducible and defensible.

4Case 004 (E/M MDM and Time Validation): At a revenue-cycle QA checkpoint, an auditor is preparing a formal report to leadership. An office E/M level appears overstated. What is the most defensible validation method?

A.Reconstruct level selection using documented MDM elements or qualifying total time per current guidance.

B.Downgrade every visit with limited history regardless of MDM evidence.

C.Use billed diagnosis count alone to validate E/M level.

D.Accept provider-selected level when claim payment was successful.

Explanation: E/M audits should apply current CPT selection rules, not legacy heuristics or payment outcomes.

5Case 005 (Modifier 25 Audit Logic): During a payer overpayment response drill, the team is aligning audit evidence with policy timelines. A provider frequently reports modifier 25 with procedures. What evidence supports compliant use?

A.Any same-day E/M and procedure pairing regardless of note content.

B.Documentation showing a significant, separately identifiable E/M service beyond procedure-related work.

C.Automatic modifier use for all established-patient visits.

D.A prior payer approval on unrelated claims.

Explanation: Modifier 25 audits focus on documentation that demonstrates distinct evaluation work.

6Case 006 (Modifier 59 and NCCI): In a focused E/M audit, notes are reviewed for medical decision making, time, and modifier support. A claim pair edits under NCCI but was bypassed with modifier 59. What should the auditor verify?

A.Whether the provider intended to avoid future denials.

B.Whether both lines share the same diagnosis code.

C.Whether documentation supports a truly distinct service scenario allowed under coding policy.

D.Whether the practice has a historical pattern of using modifier 59.

Explanation: Modifier 59 should be validated against documented clinical distinctness and policy criteria.

7Case 007 (Global Surgery Audits): During an internal controls review, coding variance trends are being mapped to process owners. Post-op visits are billed separately after a procedure. Which question should the auditor ask first?

A.Were the visits scheduled by front desk staff instead of nursing staff?

B.Was the patient seen on a weekday rather than weekend?

C.Did the provider use an EHR template for every post-op note?

D.Do the billed services exceed routine global-package work and include separately reportable documentation?

Explanation: Global surgery auditing compares billed follow-up services to package inclusions and documented exceptions.

8Case 008 (Undercoding vs Overcoding): At an education feedback session, auditors are converting error patterns into provider coaching points. An audit shows systematic undercoding in one clinic and overcoding in another. How should this be classified?

A.Both are compliance risks requiring corrective action, training, and monitoring.

B.Only overcoding is a compliance issue; undercoding is always acceptable.

C.Only undercoding is a compliance issue because it reduces documentation quality.

D.Neither is actionable if net reimbursement appears neutral.

Explanation: Undercoding and overcoding each introduce compliance, quality, and revenue integrity risk.

9Case 009 (Medical Necessity Support): In a legal-risk assessment, compliance staff are evaluating potential billing exposure from audit findings. A denied claim cites lack of medical necessity. What should be reviewed first?

A.Whether the claim was filed near month-end closing.

B.Whether the record links patient condition, clinician rationale, and service intensity to applicable criteria.

C.Whether the provider used a standard documentation template.

D.Whether the service was delivered by a high-volume clinician.

Explanation: Medical necessity audits require documentation-to-criteria alignment, not process-volume considerations.

10Case 010 (Overpayment Refund Rule): During a re-audit cycle, the team is testing whether earlier corrective plans actually reduced risk. An internal audit confirms likely Medicare overpayments. What immediate compliance step is expected?

A.Delay action until annual external audit closes the fiscal year.

B.Offset potential overpayments against unrelated future claims without documentation.

C.Quantify and investigate identified overpayments and follow required return/reporting timelines.

D.Refund only if the payer issues a post-payment demand letter first.

Explanation: Confirmed overpayment risk requires timely, documented remediation aligned with applicable refund obligations.

About the CPMA Medical Auditor Exam

CPMA is AAPC's advanced medical auditing credential focused on coding-validation methodology, E/M and modifier auditing, compliance risk detection, reporting standards, and corrective action execution.

Questions

100 scored questions

Time Limit

4 hours

Passing Score

70%

Exam Fee

$399 one attempt / $499 two attempts (AAPC)

CPMA Medical Auditor Exam Content Outline

High

Audit Planning and Methodology

Scope/objective setting, random vs targeted sampling, and extrapolation decision boundaries

High

Coding and E/M Validation

MDM/time review, modifier 25 and 59 controls, global package checks, and undercoding/overcoding detection

Medium

Compliance and Legal Risk

Medical necessity support, overpayment response, FCA/Stark/AKS awareness, and HIPAA minimum-necessary handling

Medium

Reporting and Provider Education

Audit report structure, recommendation quality, provider feedback design, and corrective plan ownership

Foundation

Revenue Integrity and Follow-Up

Denial KPI dashboards, appeal evidence packet quality, and re-audit monitoring for sustained improvement

How to Pass the CPMA Medical Auditor Exam

What You Need to Know

Passing score: 70%
Exam length: 100 questions
Time limit: 4 hours
Exam fee: $399 one attempt / $499 two attempts

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

CPMA Medical Auditor Study Tips from Top Performers

1Use a standardized audit worksheet so each finding ties to criterion, evidence, and impact

2Separate coding disagreement from true compliance risk and document escalation thresholds clearly

3For E/M and modifier reviews, require note-level evidence before accepting or overturning billed levels

4Turn every major finding into a corrective action with owner, due date, and measurable KPI

5Always schedule a re-audit window to verify that remediation changed outcomes instead of only activity

Frequently Asked Questions

Who should take the CPMA exam?

CPMA is designed for coders, compliance analysts, audit specialists, and revenue-integrity professionals who review documentation and coding accuracy rather than only assigning codes.

What is the CPMA exam format?

AAPC's current core-exam format for CPMA follows 100 questions in 4 hours with a 70% passing standard.

How is CPMA different from CPC/COC?

CPC and COC focus primarily on accurate code assignment, while CPMA focuses on auditing methodology, risk assessment, report writing, provider feedback, and corrective action governance.

Which CPMA topics are most tested in practice?

High-yield areas include sampling method selection, E/M and modifier validation, overpayment/compliance response workflows, and translating findings into measurable corrective plans.

How should I study for CPMA in 2026?

Study with audit-case progression: define scope, review sampled claims, score findings, write report recommendations, and design re-audit checkpoints. This mirrors real-world CPMA decision flow.