Medical malpractice only applies to patient care, not administration. In other words, a provider can't be found liable for malpractice just because there's an error in the patient chart: there has to be some evidence of patient harm as well. Claim denials aren't a legal issue unless there is some sort of fraud or contact violation involved.

Now I understand your question. I can provide and example where a small documentation error may cause patient harm - wrong copy-pasting in a discharge note, copying from other personal medical record and accidentally pulling their diagnosis into the record, and then factoring this diagnosis by the other doctor in their treatment plan

I don't know then, gross negligence? ianal, but why is this an acceptable and profitable way to operate is beyond me.