Question: Missouri Subscriber Answer: Report 44373 (Small intestinal endoscopy, enteroscopy beyond second portion of duodenum, not including ileum; with conversion of percutaneous gastrostomy tube to percutaneous jejunostomy tube) for this procedure. The gastroenterologist inserted the j-tube by passing it through a g-tube that was already in place. J-tubes can also be inserted percutaneously, through an incision in the stomach under endoscopic guidance. Report this procedure with 44372 (... with placement of percutaneous jejunostomy tube).