Billing Basics
Insurance Essentials
EOB Breakdown
Client owes what?
NA
100

What does “EOB” stand for in medical billing?

Explanation of Benefits

100

What is a “deductible”?

The amount a patient pays before insurance starts covering costs

100

What does EOB stand for?

Explanation of Benefits

100

Copay: $25, visit done

Client pays $25

200

In billing, what does “POS” mean?

Place of Service.

200

What is a copay?

Fixed amount paid per visit

200

What is the 'adjustment'?

Amount the provider agrees to write off

200

Deductible not met—who pays?

Client pays full allowed amount

300

Who is responsible for billing patient co-pays?

the provider

300

What is coinsurance?

Percentage you pay after deductible

300

What does 'allowed amount' mean?

What insurance agrees to pay

300

EOB says 'Patient owes $15.44' – why?

It’s their responsibility (copay/coinsurance)

400

when do you post a payment?

after insurance send payment or EOB

400

Define “out-of-pocket maximum.


The most a patient pays in a year before insurance covers 100%.

400

Difference between billed and paid?

Billed is full charge; paid is what insurance covers

400

Insurance paid $0—what next?

Check denial reason, correct & resubmit

500

what report shows unpaid claims?

Aging Reports

500

What is “coordination of benefits”?

Determining primary and secondary insurance coverage.

500

When is a claim denied?

When info is missing, not covered, or authorization needed

500

How do you bill a balance?

Send statement, follow up as needed

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