What you don't do (deny for systemic purposes) has just as much impact as what you actively do. The blood remains on your hands for just letting a denial the insurer sets up skate by.

If you're a medical professional here, and God help you if you are; and if you work for these assholes, they are killing people and using you to do it. You are enabling them by being willing to provide that "medical oversight". It's a feature you can't work through every case, and the only one getting enriched is them!

Get out while you still have a soul left.