CDPMA study materials
CDPMA study resources

A Secondary Payer Denies, and the Estimate Was Too Low

CDPMA · Put your knowledge to work in context.

All case studies

A Secondary Payer Denies, and the Estimate Was Too Low

A 47-year-old patient accepts a crown and build-up on tooth 19. Your practice participates with Delta Dental PPO and files Cigna claims as a courtesy for non-participating benefits. The fee is $1,780. Delta has $600 remaining on the annual maximum and pays 50% after a $50 deductible. A Cigna representative says the plan will cover 80% of the remaining balance, so the written estimate given to the patient is $640. The patient signs the financial agreement and pays $640 at the prep visit. Six weeks later, Delta pays $600 and Cigna pays $0, citing a non-duplication provision. The patient calls demanding a refund of the $640 and says the estimate was guaranteed. The office manager is out, and the front desk asks you to handle the call. The practice's written financial policy states that estimates are based on information available and are not guarantees, but the front desk did not review that language with her.

1. Reconcile the claim outcome and determine the correct patient balance. Explain the coordination-of-benefits and non-duplication rules you applied.

Read the worked answer

Start with the payer order. The patient is the subscriber on Delta and a dependent on Cigna, so Delta is primary and Cigna is secondary. Cigna's non-duplication provision generally means it pays nothing when the primary payment equals or exceeds what Cigna would have paid, and at most pays the difference between its allowable and the primary payment.

Do not treat the telephone quote as final. Request Cigna's EOB and its allowed amount for the crown. If 80% of Cigna's allowable is $600 or less, Cigna's $0 payment is correct. The patient balance is then the fee minus Delta's payment: $1,780 - $600 = $1,180. Because she already paid $640, she owes $540; she is not due a refund unless the practice chooses a documented goodwill adjustment.

The estimate was wrong because staff assumed a secondary payment without verifying Cigna's allowable or the non-duplication clause, and because Delta's remaining maximum capped its payment at $600. Explain the EOBs line by line, give her copies, and put the corrected balance in writing.

2. The patient says she will post a negative review and refuses to pay more. What do you say, and what options do you offer?

Read the worked answer

Acknowledge the frustration without conceding that the estimate was a guarantee. Use a short script: 'I understand why this is upsetting. The estimate was based on a phone quote that did not include Cigna's non-duplication rule. I have the EOBs here, and I will walk you through them. The balance is $540, and I can set up a plan that fits your budget.'

Offer a written corrected statement, copies of both EOBs, and an interest-free payment plan of three to six months if practice policy allows. Do not promise a refund before the Cigna EOB is reviewed. If Cigna's allowable shows a payable difference, adjust the balance immediately. If the patient still disputes the amount, escalate to the office manager or dentist for a goodwill review rather than arguing at the front desk.

Do not waive the balance simply because of the review threat. Waiving patient responsibility can raise insurance-contract and false-claims concerns, and it rewards pressure. If a courtesy adjustment is made, document the reason, the approver, and the amount, and apply the same standard consistently.

3. What process changes would prevent a repeat of this estimate error?

Read the worked answer

Redesign the estimate process around verification, not assumption. Use a benefits form that records both plans, the subscriber/dependent relationship, annual maximum remaining, deductibles, waiting periods, frequency limits, and any non-duplication or COB provision. Require a written or portal EOB or allowable for the secondary plan before quoting a secondary payment. Quote the patient portion as 'estimated' and review the disclaimer with the patient at signing.

Build the secondary claim from the primary EOB, not from the original estimate. Track every estimate against the final payment and review variances monthly. Train the front desk on COB order and non-duplication, audit ten randomly selected estimates per month, and give staff a clear escalation path when a payer quote is incomplete. Update the financial policy to state when estimates will be revised and how balances over a set amount are handled.