Gastric Sleeve with leak test

I am new to Bariatric coding and need some help. I am coding a case where the physician performed a laparoscopic gastric sleeve and an esophagogastroscopy leak test. Is the leak test considered incidental to the gastric sleeve or can it be billed separately? If it can be billed separately, what is the CPT® code?
Thank you in advance for the help! I really appreciate it!