Recovering data from badly damaged iphone

I Have just damaged my iphone 6 in a bike crash

Its so bad the screen has become detached from the device, along with the home button etc

im plugging it in my pc to back up before i send it to the insurance company but its asking for passcode despite it being a trusted pc

obviously im unable to input the code, is there a way i can input the passcode via itunes?

I Have some pics and vids id like to recover more than anything else but obviously a full back up would be good for when i get a new device

hope someone can help