Even if the coronavirus test itself is free, you could still be on the hook for other medical costs related to testing or treatment.

Business Insider laid out some of these other costs. They can include the cost of a visit to the emergency department or urgent care center. It can also include the cost of other blood tests, including flu testing.

The cost of these other medical services depends on your insurance, as well as whether you’re going to a facility that’s in your policy’s network. If you’re uninsured, the healthcare facility will often try to bill you for the full amount.