The reasons claims are denied are many. Insurers can deny claims for services that arent covered by a patients policy, were coded incorrectly, had clerical errors, didnt have the required pre-authorization or were not considered a medical necessity.
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A lot of these denials are probably corrected. Or it could be something like they cover 3 days in the hospital instead of 4.
What frosts me is because I pay by check (bank next door, they can clear it immediately if they want) on the day of the visit. Even though I cost them NOTHING in billing and filing expenses and they don't have to wait for my payment, they charge me more! And what's their answer to my voicing concern about that? That I should by their insurance policy! And then they'd decide what care I need by the dictates of that policy.
It's insane. Prices have gotten so out of control.