The term that is used to describe common flexor osteotendinopathy is Golfer's elbow.
Common flexor tendon is the part of your arm between your shoulder and your elbow. Based on my knowledge of Latin, osteo refers to the bone, tendin refers to the tendon, and (o)pathy to the pain, so I'm assuming that this term, or rather Golfer's elbow, refers to the pain of this part of your arm.