CPB Exam Prep: Medical Biller

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About this app

Prepare for the AAPC Certified Professional Biller (CPB) exam at a desk built around the claim. Read mock remittances, decide what happens next, and study all seven sections of the exam outline.

DENIAL QUEUE
Each item is an invented remit with billed, allowed and paid amounts, group codes, reason codes and remark codes, plus a note on what's in the file. Your call: correct the claim, resubmit it, appeal, or bill the patient. Then see why each option is right or wrong, and a rule to keep. Ten denial types: data errors, coding and modifiers, medical necessity, authorization, coordination of benefits, timely filing, duplicates, patient share, noncovered services and ABNs, and eligibility and enrollment.

CLAIM MATH (FREE)
Exam practice for the numbers billers use: patient responsibility from allowed amount, deductible, coinsurance and copay; days in A/R; and clean-claim and denial rates. The working uses the same rules taught in the study material.

THE CLAIM LIFECYCLE
A stepper across the top takes you through Intake, Scrub, Remit, A/R and File. Intake is your worklist for the day: your next scored set, your weakest section, today's remit, missed questions and an exam countdown.

STUDY ALL SEVEN SECTIONS
• Scored ten-question sets with results by section and review of misses
• Multiple choice, true/false, flashcards and term matching
• Practice by section, with case analysis questions built on mock remits, policies, authorizations and A/R reports
• A searchable glossary of billing terms
• Formulas and reference: fee math, A/R metrics, CMS-1500 and UB-04 field maps, group and reason codes, appeal levels and modifiers
• The exam outline with question counts by section and official links

Topics follow AAPC's published CPB outline: types of insurance, billing regulations, HIPAA and compliance, reimbursement and collections, claims and billing, coding, and case analysis.

FREE AND PREMIUM
A full scored practice set, the first remit of every denial type, a sample of each study mode and the complete Claim Math tool are free. Premium opens the full library with a subscription or a one-time lifetime purchase.

Official sources (also linked in the app):
- AAPC: Certified Professional Biller (CPB): https://www.aapc.com/certifications/cpb
- AAPC: Taking the CPB Exam: https://www.aapc.com/certifications/cpb/taking-the-cpb-exam
- CMS: NCCI edits: https://www.cms.gov/medicare/coding-billing/national-correct-coding-initiative-ncci-edits
- CMS: ICD-10 code files: https://www.cms.gov/medicare/coding-billing/icd-10-codes
- CMS: Advance Beneficiary Notice: https://www.cms.gov/medicare/medicare-general-information/bni/abn
- CMS: Your rights on medical bills (No Surprises Act): https://www.cms.gov/medical-bill-rights
- Medicare.gov: Appeals in Original Medicare: https://www.medicare.gov/providers-services/claims-appeals-complaints/appeals/original-medicare
- HHS: HIPAA Privacy Rule summary: https://www.hhs.gov/hipaa/for-professionals/privacy/laws-regulations/index.html
- eCFR: 42 CFR 424.44 Medicare time limits: https://www.ecfr.gov/current/title-42/section-424.44
- FTC: Fair Debt Collection Practices Act: https://www.ftc.gov/legal-library/browse/rules/fair-debt-collection-practices-act-text

This app is an independent study aid. It is not affiliated with, endorsed by or sponsored by AAPC. CPB is a registered mark of AAPC. CPT is a registered mark of the American Medical Association; CPT codes appear by number only, with our own wording. This is not a government app and does not provide any government service. Study material for exam preparation only: not medical, legal or billing advice, and not for patient care. All remits, patients and payers in the app are invented.

Privacy policy: https://www.dmpenterprisellc.com/privacy-policy
CPB biller exam prep: denial queue drills, claim math and all seven sections
Updated on
Nov 10, 2026

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What’s new

First release: Denial Queue across ten denial types, the free Claim Math tool, and study modes for all seven CPB exam sections.