Coding per insurance- HELP!

I have a new SR. Management team that wants to change the way we bill out therapy codes based on what the insurance would cover so for instance- Medicare would be billed how we always have been in the past but commercial plans would get a different billing structure due to their high volume of denials on certain codes. I am inclined to think that the coding needs to be consistent across the board. Am I right or is it OK to change how things are coded (the codes still absolutely are supported...

Coding per insurance- HELP!