I was reading research on this recently because I’m working on an EHR software. The cited study concluded that physicians spend about 15% of their time face-to-face with patients and about 17% filling out documentation. For interns it’s worse with 11% time with patients and 22% writing things down.
This was in Principles of Health Interoperability, a book from ~2016.
On the bright side, all this documentation has been shown to literally save lives. Not sure it’s doing as much for us coders.