How to Tell Whether an Out-of-Network Medical Bill May Be Protected by Federal Law

A surprise medical bill can feel like a second emergency. You went to the hospital, the surgery center, or the ER thinking your insurance would help, and then a bill shows up from a doctor or service that was never part of the plan you thought you were using.

The good news is that some out-of-network bills are limited by federal law. The harder part is figuring out which bills count, which ones do not, and what paperwork can help you tell the difference.

In this post you’ll learn how to evaluate whether an out-of-network medical bill may fall under the No Surprises Act, the federal law that took effect on January 1, 2022. You’ll also learn what clues to look for on your bill, when state law may matter too, and when an attorney may be helpful if a provider, facility, or insurer is not treating the bill the way federal rules describe. For broader background on the law itself, it may help to start with this overview of federal surprise-billing protections and payment disputes.

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What Federal Law Is Usually Being Discussed?

When people talk about federal protection from surprise out-of-network charges, they are usually talking about the No Surprises Act. According to the Centers for Medicare & Medicaid Services, the law generally protects people in group health plans and individual health insurance coverage from certain surprise bills tied to emergency care, certain non-emergency care at in-network facilities, and out-of-network air ambulance services. CMS explains the core protections here and summarizes them here.

In general terms, the law is aimed at balance billing. That is the part of the bill that reflects the difference between what an out-of-network provider charged and what the health plan paid. Under the federal protections, patients in covered situations are generally limited to in-network cost-sharing amounts, rather than the provider’s full out-of-network charges. CMS describes that framework here.

Step 1: Confirm What Kind Of Coverage You Had On The Date Of Service

The first question is not whether the provider was out of network. It is what kind of insurance coverage you had when the care happened.

Federal surprise-billing protections generally apply to people with:

CMS states that these federal rules generally do not apply in the same way to people whose coverage is through Medicare, Medicaid, Indian Health Service, Veterans Affairs health care, or TRICARE, because those programs have their own billing protections. CMS notes those exceptions here and here.

That means one of the first documents to pull is your insurance card, your Explanation of Benefits, and any plan document that identifies whether you were enrolled in private group or individual coverage.

Step 2: Identify Whether The Bill Involves One Of The Main Protected Categories

A bill is more likely to be federally protected if it falls into one of the categories the No Surprises Act specifically addresses.

Emergency Services

CMS explains that surprise billing protections generally apply to most emergency services, even when they are provided by an out-of-network provider or at an out-of-network emergency facility, and even if prior authorization was not obtained first. CMS source.