16.Difference between prior authorization and a referral?
17.What is UPIN #? How many characters does it contain?
18.What is pre-existing condition?
19.Full form of HIPAA?
20.Full form of HCFA?
21.Difference between Inclusive and Bundled procedure?
22.“Patient cannot be identified” Is this remark is a claim rejection or a claim denial.
23.What is EOMB?

24.What is an ABN form?
25.What is Assignment of benefits?
26.What is accept Assignment?
27.What is the difference between the billing address and the pay to address?
28.What is copay?
29.Define the advantages and the disadvantages between HMO and PPO plans
30.What is a POS plan?

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Medical billing interview question