Update page(s) to farm without touching codes that were previously deployed via wsp

I’m facing a situation where I only wish to update one page of the farm solution and do not wish to touch the existing codes that were previously deployed onto the farm.

Why do I wish to do so is because there might be a code difference and I do not wish to risk it, thus I’m trying to see if I’m able to deploy only the selected files onto the farm without having to worry about code difference?

Am I able to do so with Sharepoint 2010?