Hi, thanks for writing to HCM.
A major fracture can be ruled out as you dont have swelling, any visible deformity
and you are able to perform elbow movements normally.
Propably, it could be a soft tissue contusion
which will resolve within 3 weeks.
* apply ice packs at the site of maximum tenderness
* avoid positions which cause you pain
and antiinflammatory medications will help
If it is not resolving with the above measures, consult an orthosurgeon
Wishing you a quick recovery.