ORIGINAL: Jbra
Most of the time you are better off just waxing the deer, rather that avoiding them. If you have full coverage that is. Sorry to hear about that, glad your ok.
Jbra's right. If you hit the deer, it's a comp (comprehensive coverage) loss. If you miss and go into the ditch and hit a fence, tree, etc., or roll it, then it's a collision coverage loss.
Comprehensive coverage usually has a lower deductible and those losses don't usually count against you as far as getting your rates raised. If you avoid it and hit the ditch, it will be an AT-FAULT collision loss and your rates will likely go up.
The main thing is that you're ok, though. Sorry about your car, though.