One of the good things about carbon fiber is that you can see damage immediately.
The first test is whether the tire is holding air. If it is not, the wheel is likely damaged beyond repair. Major damage will show cracks through the rim and the wheel will obviously not be usable.
If it holds air, remove the tire and check the wheel carefully. Damage can be superficial in which case minor cracks will be visible in the clear coat, and the wheel is usable. If the cracks are deeper and the layers of carbon fiber appear to be torn, this is more serious and the wheel should not be used.
Please feel free to send us photos to help assess the damage for you.