What characterizes the Bilroth II surgical procedure?

The Bilroth II procedure is characterized specifically by the surgical anastomosis of the stomach and jejunum. This operation is typically performed as a partial gastrectomy, where a portion of the stomach is removed, and the remaining part is connected to the jejunum, which is the second part of the small intestine. This connection allows for food to bypass the resected section of the stomach, facilitating digestion and absorption.

Given this context, surgical removal of the gallbladder relates to cholecystectomy, which is not associated with the Bilroth II procedure. Reconstruction of the urethra involves urological surgery and does not pertain to gastrointestinal procedures like the Bilroth II. Lastly, repair of the diaphragm is a thoracic surgical procedure, unrelated to the gastroenterological scope of the Bilroth II operation. Therefore, the correct characterization of the Bilroth II procedure centers around its specific anastomosis of the stomach to the jejunum.