Tired of skimming your CPT book for endoscopy codes? Place this handy chart by your desk, and you'll be locating them in no time. Hint: You'll notice that many of the esophagoscopy, EGD, and enteroscopy codes contain the same CPT descriptions. The difference is the distance your GI travels through the patient's upper GI tract. Be sure to verify that detail in your documentation. Parent endoscopy codes: 43200, 43235, 43260, 44360, 44376, 44380, 44385, 44388, 45300, 45330, 45378, and 46000.