Insurance errors
You have more than one plan: which one pays first
Coordination of benefits is not guesswork, and the wrong answer can cost you hundreds.
If two plans could cover the same bill, someone has to pay first. That is coordination of benefits. The rules are usually a birthday rule for family plans and a length-of-service rule for employer plans, with special handling for Medicare and certain other payers.
The practical problem is not the rules. It is that the plans and the provider often disagree about who was primary, and the bill ends up sitting with you while they argue.
What to do
- Check each plan's member site for how it lists you and any dependents.
- Call the plan you believe is primary and ask them to confirm the order, with a reference number.
- If the provider billed the wrong plan first, ask for a rebill to the correct primary and request written confirmation.
- Do not submit the same claim twice on your own. It can cause coordination confusion and a denial you then have to unwind.
Common signs something is wrong
- A denial that mentions other insurance or coordination of benefits.
- A bill sent to a plan you no longer have.
- A questionnaire from an insurer asking whether you have other coverage.
This is general information, not legal advice, and plan documents govern. Check yours or ask your benefits administrator.
Not legal, medical, tax, or financial advice. This is one
patient's experience plus general information. Rules differ by state and by plan, and
they change. Check your own documents and official sources, and decide for yourself
whether to pay any bill.