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Medical Coder interview questions

A coding interview is half conversation and half exam. Expect someone to hand you real charts or a timed test, and expect the talking part to circle back to one worry: will you code what the note supports, even when someone wants more. Here's what they ask and what a good answer sounds like.

11 questions7 minute read

Part 1

1.Walk me through how you code an outpatient visit from start to finish.

Why they ask

They want to hear an actual process, not a list of code sets. It shows whether you read the whole note or jump to the assessment.

How to answer

  • Read the full note first, including the history, exam and plan, before picking anything
  • Assign the diagnosis codes the provider documented, sequenced with the reason for the visit first
  • Choose the procedure and E/M codes the documentation supports, then add any needed modifiers
  • Run it through the encoder and payer edits, and query the provider if something doesn't line up

2.A provider documents 'rule out pneumonia' on an outpatient visit. How do you code it?

Why they ask

Outpatient and inpatient rules treat uncertain diagnoses differently, and this catches people who learned one setting and apply it everywhere.

How to answer

  • In outpatient coding you don't code a 'rule out' or 'probable' diagnosis as if it were confirmed
  • You code the signs and symptoms the provider documented instead, such as cough or fever
  • Mention that inpatient guidelines handle uncertain diagnoses at discharge differently
  • Say you'd check the official guidelines if you weren't sure, rather than going from memory

3.How do you decide the E/M level for an office visit?

Why they ask

E/M leveling drives a big share of physician revenue and a big share of audit findings. They want to know you level from documentation, not habit.

How to answer

  • Level office visits on medical decision making or total time on the date of service, whichever the provider documented
  • Explain the parts of medical decision making: problems addressed, data reviewed and risk of management
  • Say you don't let the chief complaint or the provider's own pick set the level
  • Give an example where you leveled lower than the provider selected and how you explained it
4.Tell me about a time documentation was unclear. What did you do?

Why they ask

Queries are where coders protect the organization. They want to know you ask, and that you ask the right way.

How to answer

  • Describe the specific gap, for example a note that said 'anemia' without a type or cause
  • Explain that you sent a written query through the EHR rather than choosing the more specific code yourself
  • Say the query offered clinically supported options and didn't lead the provider toward a higher-paying answer
  • Share what happened and whether it changed how that provider documented later
5.A physician asks you to code a higher level than the note supports. What do you do?

Why they ask

This is the compliance question. Upcoding is fraud risk, and they need to know you won't fold under pressure from a senior person.

How to answer

  • Stay calm and respectful, and show the physician exactly what the note does and doesn't support
  • Offer the path forward: if more was done, they can add a proper late entry or addendum
  • Code what the documentation supports, not what's requested
  • Escalate to your coding manager or compliance if the pressure continues

Part 2

6.What's unbundling, and how do you catch it?

Why they ask

They want to see that you understand NCCI edits and won't bill separately for services that belong together.

How to answer

  • Define unbundling as billing component parts separately when a single code covers them together
  • Explain that NCCI edits flag many of these pairs, and the encoder shows them
  • Say you only use a modifier to bypass an edit when the documentation shows a truly separate service
  • Give a quick example from your own coding where you caught it
7.How do you balance your productivity target with accuracy?

Why they ask

Every coding team tracks both. They want someone who hits the number without cutting corners, and who says so honestly when they can't.

How to answer

  • Say accuracy comes first, because a fast wrong code costs more in denials and rework
  • Describe habits that keep you quick, like templates for common visit types and knowing your encoder shortcuts
  • Explain how you tell your lead when a batch of complex charts will slow you down
  • Mention your audit results if you have them
8.Tell me about audit feedback you disagreed with.

Why they ask

Coders get audited constantly. They want someone who can take correction without getting defensive, and push back with evidence when the auditor is wrong.

How to answer

  • Pick a real case and name the codes or guideline in question
  • Explain how you researched it using the official guidelines, Coding Clinic or payer policy
  • Describe how you raised it with the auditor, calmly and in writing
  • Say what the result was and what you took from it, even if you turned out to be wrong
9.What do you do when you come across a procedure or specialty you've never coded?

Why they ask

Every coder hits unfamiliar charts. They want to know you research instead of guessing, and you know where to look.

How to answer

  • Read the operative or procedure note carefully and look up any anatomy or terms you don't know
  • Use the CPT index and guidelines, specialty coding resources and Coding Clinic
  • Ask a senior coder or your lead before you finalize if you're still unsure
  • Keep your own notes so the next chart like it goes faster
10.How do you keep up with code and guideline changes?

Why they ask

Code sets and payer rules change often, and your credential needs continuing education. They want someone who does it on purpose.

How to answer

  • Name how you earn continuing education units, such as AAPC local chapter meetings or webinars
  • Mention reading the annual code updates and official guideline changes before they take effect
  • Say you watch payer bulletins for the plans your employer bills most
  • Give an example of a change that affected your work and how you adjusted

Part 3

11.Why coding, and why this setting?

Why they ask

They want to know you'll stay. A coder who really wanted inpatient work may leave a clinic job quickly.

How to answer

  • Give a specific reason you like the work, such as solving puzzles in documentation
  • Connect it to this employer's setting, whether that's a specialty clinic, a hospital or a billing company
  • Mention where you'd like to grow, for example into auditing or clinical documentation
  • Keep it honest and brief

Questions to ask them

Ask at least two. It shows you're picking them too.

  • Which specialties and encounter types would I code most of the time?
  • How is productivity measured here, and what's expected during the first few months?
  • How often are coders audited, and how is feedback given?
  • How do provider queries work here, and do providers usually respond?
  • What's the path to remote work, and what does it depend on?

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