The short answer
Balance billing happens when an out-of-network provider bills you for the difference between their charge and the amount your health plan pays, potentially leaving you with a large, unexpected bill. It typically arises with out-of-network care, since in-network providers agree not to balance bill. Importantly, protections exist against certain surprise balance bills, such as for emergency care and some out-of-network providers at in-network facilities, though the specifics depend on the situation and applicable rules. Knowing when you are protected, and confirming network status, helps you avoid surprise bills.
So balance billing is being charged the difference between an out-of-network provider's charge and your plan's payment, with protections against some surprise bills.
How it happens
In-network providers accept negotiated rates and do not balance bill, but out-of-network providers can charge their full rate and bill you for what your plan does not cover. Surprise balance bills often occur when you unknowingly receive care from an out-of-network provider, such as during an emergency or from an out-of-network specialist at an in-network hospital. Our guide to in-network vs. out-of-network costs covers the underlying network issue, and our glossary defines the terms.
It arises with out-of-network care, especially surprise situations like emergencies or out-of-network providers at in-network facilities.
When you are protected
Protections exist against certain surprise balance bills, notably for emergency services and for some out-of-network care received at in-network facilities, limiting what you can be charged in those situations. These protections have specific rules and exceptions, so understanding them and confirming provider network status before non-emergency care remains important. If you receive a surprise bill, you may have grounds to dispute it. Our glossary covers related terms. This is educational information; confirm the specifics for your situation.
The takeaway: balance billing charges you the gap on out-of-network care, but protections limit certain surprise bills like emergencies — confirm network status and know your protections.
Frequently Asked Questions
What is balance billing?
When an out-of-network provider bills you for the difference between their charge and what your health plan pays, potentially leaving you with a large, unexpected bill. In-network providers agree not to balance bill.
When am I protected from balance billing?
Protections exist against certain surprise balance bills, notably for emergency services and some out-of-network care at in-network facilities, though the specifics depend on the situation and applicable rules.
How do I avoid surprise balance bills?
Confirm a provider is in your plan's network before non-emergency care, understand your protections for emergencies and in-network facilities, and dispute a surprise bill if you believe it is improper.
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