The cat and mouse between payer and system will never die given how it's set up. There's a disincentive to bill less than maximally, and therefore to not deny and adjust as much as possible. Somewhere in the middle patients get squished with the burden of copays and uncovered expenses that the hospital is now legally obligated to try and collect on or forfeit that portion for all future claims (and still have a copay on that new adjustment)
