Underpayment is a few percent of hospital revenues. It's a component of costs for sure, but only a small one. https://www.aha.org/factsheet/2019-01-02-uncompen

Underpayment is a few percent of hospital revenues. It's a component of costs for sure, but only a small one. https://www.aha.org/factsheet/2019-01-02-uncompensated-hospital-care-cost-fact-sheet-january-2019 https://www.aha.org/factsheet/2019-01-02-uncompensated-hospi... My understanding is that you would usually pay the price set by the agreement your insurance has, even if they deny coverage of it.