Medical Billing and Insurance
Medical Billing and Insurance
Medical billing and insurance involves submitting claims to payers, managing reimbursements, and ensuring compliance with payer policies. Candidates must understand the claim lifecycle: patient registration, insurance verification, coding, charge entry, claim submission, payment posting, and denial management. Key concepts include copayments, coinsurance, deductibles, allowed amounts, and the explanation of benefits (EOB).
A major trap in exam questions is confusing copayment with coinsurance: a copayment is a fixed amount the patient pays at the time of service, while coinsurance is a percentage of the allowed amount. Another trap is the distinction between the allowed amount and the billed charge; the allowed amount is the maximum amount a payer will pay for a covered service, and providers may not bill the patient for the difference beyond the allowed amount plus any patient responsibility (copay, coinsurance, deductible) for in-network services.
Clean claims are essential for timely reimbursement. The National Uniform Claim Committee (NUCC) maintains the 1500 Health Insurance Claim Form, and the electronic equivalent is the 837P transaction under HIPAA. Claims must include accurate patient and provider identifiers, diagnosis and procedure codes, and place of service. Denials and rejections must be managed promptly: a rejection is a claim that never entered the payer's system, while a denial is a claim that was processed but not paid.
Worked example: A patient has a $500 deductible, 20% coinsurance, and a $30 copayment. The allowed amount for the visit is $200. The patient pays the $30 copay at the time of service. The remaining $170 is applied to the deductible (since the deductible is not yet met), so the patient owes $170 more. The insurance pays $0 because the deductible is not met. Rule of thumb: always apply the copay first, then the deductible, then coinsurance, unless the payer's policy states otherwise.