| | Public Health Safety | CPR What is the cpt code for A Medicare patient presents a sigmoidoscopic biopsy of an ulceration at rectosigmoid region.? The CPT code for a Medicare patient presenting with a sigmoidoscopic biopsy of an ulceration at the rectosigmoid region is 45338. CPR - Related Articles What is maxillofacial trauma? Type 2 Diabetes Diet Restrictions Is it my wisdom teeth taking m voice away? Pudendal Nerve Problems What Is Involved in Shoulder Replacement Surgery? What Devices Can Help You Stop Snoring? Homeopathic Treatment For ED