Question: South Carolina Subscriber Answer: Note that tennis elbow, a more familiar term, refers to lateral epicondylitis (726.32). Other injuries that might hinder an athlete's game are medial epicondylitis (726.31), enthesopathy of elbow (726.30, ... unspecified), and olecranon bursitis (726.33, ... olecranon bursitis). All of these "enthesopathies" refer to disorders of peripheral ligamentous or muscular attachments.