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Repair of blood vessel of chest with graft on heart-lung machine

Destruction of polyp or growth of esophagus using a flexible endoscope

Ultrasound exam of esophagus using a flexible endoscope

Ultrasound guided fine needle aspiration or biopsy of esophagus using a flexible endoscope

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, 3.0 cm or more

Drainage of fluid collection of esophagus, stomach, and/or upper small bowel using a flexible endoscope

Removal of foreign bodies of esophagus, stomach, and/or upper small bowel using a flexible endoscope

Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using a flexible endoscope with electrical cautery

Microscopic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope

Injection of diagnostic or therapeutic substance or marker in esophagus, stomach, and/or upper small bowel using a flexible endoscope