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Interview guide · 100 questions
Medical Billing Interview Questions
Preparing for a medical billing interview? These questions and answers cover the role of billing, patient confidentiality, multiple insurances, superbills, audits, ERAs and refunds.
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Medical Billing Interview Questions for Freshers
1. What is the role of medical billing, and how does it differ from medical coding?
Medical billing means turning a coded patient visit into a claim, sending it to the payer, and collecting the payment due. Medical coding is the earlier step, where a coder converts the diagnosis and procedures into ICD-10 and CPT codes that the biller then uses.
2. What are the key duties and responsibilities of a medical biller?
A medical biller’s job includes checking patient info, preparing bills, sending them to insurance, following up on unpaid bills, and making sure everything follows the rules.
3. Which forms are most commonly used in medical billing?
The CMS-1500 form is used for doctor services, and the UB-04 form is used for hospital services. These are the main forms in medical billing.
4. Could you explain what ‘denial management’ means in the context of medical billing?
Denial management is about finding out why insurance claims get denied and fixing those issues to get payment faster.
5. How would you approach a claim that has been rejected?
First I read the rejection reason from the clearinghouse report. Then I correct the exact field that failed, such as the member ID, a modifier or the NPI, and resubmit the claim within the payer’s timely filing window.
6. What is the No Surprises Act, and how does it affect billing?
I like the mix of detail work and problem solving, and I want a stable healthcare career. The medical coding and billing salary guide for Hyderabad also shows a clear growth path from fresher to senior AR roles.
7. Can you describe a complex billing process you managed and how you addressed it?
I handled a case where the patient had two insurance plans. I coordinated with both insurers to make sure the claim met all requirements and was paid correctly.
8. What is an MUE edit, and how does it cause denials?
A Medically Unlikely Edit sets the maximum units of a service a provider can bill for one patient on one day. If I enter more units than the MUE limit allows, the line is denied, so I check units before submission.
9. How do you manage disputes with insurance providers?
I gather all the needed documents, keep clear records, and communicate with the insurance company to solve the problem.
10. What positive impact have you made in your previous medical billing roles?
I created a double-check system to catch errors before claims were sent, which helped get claims paid faster.
11. How do you lead and support a medical billing team?
I encourage teamwork, provide clear instructions, and offer training so everyone is up to date on rules and policies.
12. What medical billing specialties do you have experience with?
I’ve worked in areas like orthopedics, cardiology, and pediatrics, each of which has unique billing rules.
13. Have you encountered and resolved a claim error in a clearinghouse setting?
Yes, I once found a duplicate claim error, corrected it, and resubmitted it, which allowed the claim to be processed.
14. How do you keep yourself informed of updates in medical billing regulations?
Every October and January I download the new code sets, check which codes in our most-billed specialties were added, revised or deleted, and update the charge master using the CMS HCPCS release notes before claims go out.
15. Could you explain the differences between HMO and PPO insurance plans?
An HMO needs the patient to use in-network providers and get a primary care referral to see a specialist. A PPO lets the patient see in-network or out-of-network doctors without a referral, with higher premiums and cost-sharing.
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Medical Billing Interview Questions
16. What measures do you take to protect patient confidentiality?
I access only the minimum patient data needed for the claim, lock my screen when I step away, never share PHI over personal email or chat, and follow the HIPAA Privacy Rule. If I suspect a breach, I report it to the compliance officer right away.
17. How do you approach difficult conversations with patients or insurance companies?
I listen carefully, stay calm, and explain billing details clearly so both patients and insurance reps understand.
18. What are some of the common challenges in medical billing, and how do you handle them?
Common challenges include claim denials and rule changes. I stay updated on rules, double-check claims, and communicate with insurers to manage these challenges.
19. Why are you interested in working in medical billing?
I like the mix of detail work and problem solving, and I want a stable healthcare career. The medical coding and billing salary guide for Hyderabad also shows a clear growth path from fresher to senior AR roles.
20. Approximately how many invoices do you process daily?
In a typical shift I work 40 to 60 claims, covering charge entry, submission checks, payment posting and denial follow-up. The number is lower for complex specialties like surgery, where each claim needs more review.
21. What is a clean claim?
A clean claim has no errors, all information is accurate, and it meets all the insurance company’s requirements for immediate processing.
22. What do you do if you notice an error on a claim?
I find the error type first: a front-end edit, a payer rejection or a denial. A rejection is corrected and resent as a new submission. A denial is corrected and sent as a corrected claim or appealed through the Medicare appeals process or the payer’s equivalent.
23. What is the difference between Medicare Part A and Part B billing?
Part A covers inpatient hospital, skilled nursing and hospice care, and is billed on the UB-04. Part B covers doctor visits, outpatient care and preventive services, and is billed on the CMS-1500, as listed in what Medicare covers.
24. What is accounts receivable (AR) in medical billing?
AR is the amount that patients or insurance owe to the healthcare provider after billing. AR is the money owed to the provider by payers and patients for services already delivered. Days in A/R (total A/R ÷ average daily charges) is the key measure, and most practices aim to keep it under 40 days, as tracked in HFMA revenue cycle benchmarks.
25. How do you track unpaid claims?
I use billing software to monitor unpaid claims and set reminders for follow-ups.
26. What is an EOB?
Explanation of Benefits (EOB) is a statement sent by insurance companies to explain payment or denial of claims.
27. What is a corrected claim, and which frequency code is used?
A corrected claim replaces one the payer has already processed. On the CMS-1500 I use frequency code 7 to replace and 8 to void, and I add the original claim number as per the NUCC claim form instructions.
28. What is revenue cycle management?
Revenue cycle management (RCM) tracks a patient account from scheduling and eligibility check to coding, claim submission, payment posting, denial work and patient collections. Its aim is to shorten days in A/R and raise the clean claim rate.
29. What are CPT codes?
Current Procedural Terminology (CPT) codes are used to describe medical services and procedures.
30. What is ICD-10?
It’s the 10th revision of the International Classification of Diseases, used for diagnosis coding.
How do I prepare for a billing interview?
- Review billing basics, medical terms, and the billing process.
- Familiarize yourself with medical coding systems (e.g., ICD-10, CPT) and common forms like CMS-1500.
- Practice explaining steps like claim submission, error correction, and handling denied claims.
- Understand patient privacy rules, especially HIPAA compliance.
- Practice answering common interview questions to build confidence. Have a doubt about any answer above? Contact our team and we will help you.
Medical Billing Interview Questions
31. How do you deal with multiple insurances for one patient?
I coordinate benefits so the primary insurer pays first and the secondary covers the remaining eligible balance. I confirm the order with the payer using the Coordination of Benefits rules so the claim is not denied for wrong payer sequence.
32. What is patient responsibility?
This is the amount a patient needs to pay after insurance has covered its portion.
33. What does the term ‘appeal’ mean in medical billing?
An appeal is a request to review and reconsider a denied claim for payment.
34. What software are you familiar with in medical billing?
I am skilled in software like Kareo, Epic, and Cerner.
35. What is a deductible?
A deductible is the fixed amount the patient pays each plan year for covered services before the insurer begins sharing costs. For example, with a $1,500 deductible the patient pays the first $1,500 of allowed charges.
36. What happens if prior authorization is missed?
The claim is denied, so I request a retro-authorization or file an appeal with the medical records using the insurance appeal steps.
37. What’s the difference between a copay and coinsurance?
A copay is a flat fee at the time of the visit, such as $30. Coinsurance is a percentage of the allowed amount after the deductible, such as 20% of a $500 allowed charge, which is $100. A copay stays the same at every visit, but coinsurance changes with the allowed amount.
38. What is an out-of-pocket maximum?
The out-of-pocket maximum is the yearly cap on what a patient pays for covered in-network care. After the cap is reached, the plan pays 100% of covered services for the rest of the year.
39. What is a Business Associate Agreement (BAA)?
It is a contract between a provider and any vendor that handles PHI, such as a billing company or clearinghouse. It binds the vendor to HIPAA safeguards and breach reporting, as shown in the HHS sample BAA provisions.
40. What is bundling in medical billing?
Bundling is when multiple services are combined under a single code for billing.
41. How do you prioritize your work when managing multiple claims?
I prioritize claims based on urgency, insurer deadlines, and potential payment amounts.
42. What are HCPCS codes?
Healthcare Common Procedure Coding System (HCPCS) codes are used for items like medical equipment and supplies.
43. What role does the OIG play in billing compliance?
The HHS Office of Inspector General investigates healthcare fraud and publishes OIG compliance guidance for providers. A biller follows it by avoiding upcoding, unbundling and billing for services that are not documented.
44. What is claim scrubbing?
Claim scrubbing is an automated check that tests each claim against payer edits, NCCI rules, code validity and missing data before it reaches the payer.
45. How do you handle patient inquiries about billing?
I explain their charges clearly and assist with questions about insurance or out-of-pocket costs.
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Medical Billing Interview Questions
46. What is a superbill?
A superbill is a detailed invoice that outlines services rendered for insurance claims.
47. What does it mean if a claim is ‘pending’?
A pending claim is one that is awaiting processing or additional information from the provider or patient.
48. How do you stay organized with billing tasks?
I use software tools, set reminders, and categorize claims based on their stage.
49. What do CARC and RARC codes mean on an ERA?
CARC explains why the payer adjusted the payment, for example CO-45 for a contractual write-off. RARC adds detail such as which document is missing, so I read both using the RARC code list before deciding to resubmit or appeal.
50. Describe fee-for-service vs. capitation.
Fee-for-service pays per treatment, while capitation is a set fee paid periodically for all services provided.
51. What is a Place of Service (POS) code, and why does it matter?
The POS code tells the payer where the service happened, such as 11 for office and 22 for outpatient hospital. A wrong code from the CMS POS code set changes the payment rate and is a common reason for denial.
52. What are payer-specific rules?
Different insurance companies have unique rules for claim processing; knowing these rules helps avoid rejections.
53. What is a crossover claim?
When Medicare pays first, it can automatically forward the claim to the patient’s Medigap or Medicaid plan. This avoids a second submission, as explained in how Medicare works with other insurance.
54. What is an encounter form?
It is a form used to record details of patient services for billing purposes.
55. What are modifiers in medical billing?
Modifiers are codes added to CPT codes to give more detail on a procedure.
56. What is medical necessity?
Services must be medically necessary, meaning they are required for patient care, to qualify for insurance coverage.
57. How do you handle a high volume of claims?
I sort my work queue by payer deadline and balance size, work the oldest high-value claims first, and use denial work-queues so nothing sits past 30 days.
58. What is a clearinghouse in medical billing?
A clearinghouse is an intermediary that receives claims from the provider, validates the 837 file format, and forwards them securely to each payer. It also returns acknowledgement reports, so you know whether the claim was accepted.
59. What’s the difference between pre-authorization and referral?
Prior authorization is approval from the payer before an expensive service, test or drug is done. A referral is the primary care doctor’s permission to see a specialist. A service can need one, both or neither, depending on the plan. See the preauthorization definition.
60. How do you handle late payments?
If a third-party agency collects the debt, the Fair Debt Collection Practices Act limits call timing, tone and disclosures. I keep all patient contact factual, documented and respectful.
What is the billing process?
- Starts with patient registration and insurance verification.
- Adds medical codes for services and diagnoses.
- Claims are submitted to insurance for payment approval.
- If approved, payment is processed; if denied, claims are corrected and resubmitted.
- Ends with billing the patient for any remaining balance and following up on unpaid amounts.
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Medical Billing Interview Questions
61. What is a RAC audit?
Recovery Audit Contractors review paid Medicare claims to find overpayments and underpayments. I keep medical records ready and reply within the deadline given in the Recovery Audit Program letter.
62. What’s a TPA (Third-Party Administrator)?
TPAs manage insurance policies for self-insured employers, handling claims and billing.
63. What is an EPO plan?
An EPO covers only in-network care, like an HMO, but does not need a referral to see a specialist.
64. Explain ‘write-offs’ in billing.
Write-offs are portions of a bill that are waived or not expected to be collected.
65. What is a POS plan?
A Point of Service plan mixes HMO and PPO rules: a PCP referral is needed for the full benefit, but out-of-network care is still partly covered.
66. How do you educate patients on billing?
I provide simple explanations about their bills and answer questions about insurance and payment.
67. How do you handle overpayments?
I track the overpayment, process a refund if needed, and update the patient’s account.
68. How do you avoid coding errors?
I double-check codes against the documentation and use coding software for edits. If you want to move into a coder role later, see current medical coding jobs in Hyderabad.
69. How do you calculate patient responsibility on an EOB?
I add the deductible, copay and coinsurance amounts shown and match them with the patient balance field, then check the figure against the Medicare Physician Fee Schedule allowed amount when relevant.
70. What is a Medicare Summary Notice (MSN)?
It is the statement Medicare sends patients every 3 months showing what was billed, what Medicare paid and what the patient may owe. It is the patient-side version of an EOB, and patients can read about claims and appeals on Medicare.gov.
71. Why is Medicaid called the payer of last resort?
If a patient has other coverage, that insurance must pay first and Medicaid pays only the remaining eligible amount. So I always bill the primary plan before Medicaid.
72. What is aging in AR?
Aging tracks how long claims have been unpaid, helping focus on overdue claims.
73. What is CPT Category II?
These are tracking codes used for performance measurement.
74. What is the difference between the HIPAA Privacy Rule and the Security Rule?
The Privacy Rule controls who may use or share PHI, while the Security Rule requires administrative, physical and technical safeguards for electronic PHI.
75. How do you explain a high-deductible health plan to a patient?
Medical Billing Interview Questions
76. What is an ERA?
Electronic Remittance Advice (ERA) is an electronic version of an EOB, detailing payment information.
77. Explain adjustment codes.
Adjustment codes specify why payment adjustments were made on claims.
78. What is an in-network provider?
Providers in the insurer’s network who offer services at a negotiated rate.
79. Explain patient demographics.
Demographics include patient info like age, gender, and insurance, which is needed for billing.
80. What’s a TIN?
TIN is the Tax Identification Number, used for tax and billing identification.
81. Explain the global period in billing.
Global period is a timeframe in which follow-up services are included in a procedure’s fee.
82. What’s an out-of-network provider?
Providers outside the insurance network, generally with higher patient costs.
83. Explain RBRVS.
The Resource-Based Relative Value Scale sets payment by adding work, practice expense and malpractice values for each service, then multiplying by a conversion factor under the CMS fee schedule.
84. What KPIs do you track in billing?
Clean claim rate, first-pass acceptance rate, days in A/R and denial rate, benchmarked against practice-management data such as MGMA.
85. What is a Medicare Administrative Contractor (MAC)?
A MAC is the private company that processes Medicare claims for a region. I check the local coverage rules on the MAC overview page before billing so the claim is not denied for medical necessity.
86. What is provider credentialing?
It’s the process of verifying a provider’s qualifications for billing insurance, a common topic in medical billing interview questions.
87. What is the difference between ICD-10-CM and ICD-10-PCS?
ICD-10-CM codes diagnoses in all settings. ICD-10-PCS codes inpatient hospital procedures only, while outpatient procedures use CPT, as per the CDC ICD-10-CM page.
88. What is a charge master (CDM)?
It is the hospital’s master list of every billable service and its price. A wrong entry repeats the same error on every claim, so I review it at each code update along with hospital price transparency requirements.
89. What’s an NPI?
An NPI is a unique 10-digit number issued by CMS under HIPAA to every healthcare provider. Type 1 is for individual providers and Type 2 is for organizations. It must appear correctly on every claim, and you can look one up in the NPPES registry.
90. How do you verify a patient’s eligibility before the visit?
I check active coverage, plan type, effective dates, deductible met, copay and referral rules on the payer portal, and record the reference number in the account notes.
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Medical Billing Interview Questions
91. What is an ABN, and when is it needed?
An Advance Beneficiary Notice tells a Medicare patient that Medicare may not pay for a service and they may have to pay. I get it signed before the service using the beneficiary notices process, so the patient can be billed if it is denied.
92. Explain batch processing.
Batch processing groups claim for faster and more efficient submission.
93. What is an allowable charge?
It is the maximum amount an insurer will pay for a covered service.
94. What are the 270 and 271 transactions?
270 is the electronic eligibility request I send to the payer, and 271 is the response showing coverage, copay and deductible status. It is faster than calling the payer, and follows CAQH CORE operating rules.
95. Which errors does a claim scrubber catch most often?
Invalid diagnosis codes, missing modifiers, wrong place of service, and mismatched patient name or date of birth.
96. What’s your approach to patient collections?
I communicate clearly, set up payment plans if needed, and follow up respectfully.
97. Name common denial reasons and your fix.
CO-16 (missing information): correct and resubmit. CO-97 (bundled service): check NCCI and add a modifier if valid. CO-29 (timely filing): appeal with proof of the original submission date. Full list: Claim Adjustment Reason Codes.
98. How do you handle high rejection rates?
I pull the rejection report, group errors by cause and payer, and find the top three root causes. Then I fix them at the source, for example in registration or charge entry, so the rejection rate drops permanently.
99. What’s your experience with medical terminology?
I am familiar with essential medical terms used in billing and coding.
100. Why is attention to detail important in medical billing?
One wrong digit in a member ID or CPT code can delay payment by weeks. Careful checking protects the provider’s cash flow and keeps the claim compliant with HIPAA rules and payer requirements.
What is the medical billing role?
- Ensures healthcare providers get paid for services provided.
- Submits and follows up on claims, resolving issues with insurance if needed.
- Applies accurate codes to services and maintains patient account records.
- Protects patient information and ensures HIPAA compliance.
- Requires attention to detail, billing knowledge, and good communication.
