Gastroenterology Coding Challenge: Repositioning a G Tube

February 7, 2010

Reading 44373’s code descriptor is key to getting your G Tube claim right.

Question: The gastroenterologist goes to the hospital to treat a patient that had recently been admitted because his gastrojejunostomy tube had migrated to his stomach. After performing a problem focused interval history and exam, the gastroenterologist decides to perform an EGD to reposition the tube. I cannot find a code for repositioning a G tube; how should I code this scenario?

Answer: Judging by your encounter description, the patient’s percutaneous jejunostomy tube (J tube) slipped and became a percutaneous gastrostomy tube (G tube). On the claim, report the following:

44373 (Small intestinal endoscopy, enteroscopy beyond second portion of duodenum, not including ileum; with conversion of percutaneousgastrostomy tube to a percutaneous jejunostomy tube) for the EGD;
99231 (Subsequent hospital care, per day, for the evaluation and management of a patient, which requires at least 2 of these 3 key components: a problem focused interval history; a problem focused examination; medical decision making that is straightforward or of low complexity …) for the E/M;
modifier 25 (Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure or other service) appended to 99231 to show that the E/M and tube fix were separate services; and
536.42 (Disorders of function of stomach; gastrostomy complications; mechanical complication of gastrostomy) appended to 44373 and 99231 to represent the patient’s condition.

Explanation: The descriptor for 44373 might be a bit misleading, but it mentions only “tube conversion.” The tube does not necessarily have to be new.

@ Gastroenterology Coding Alert

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