Wiki Conversion of Gastrostomy. plz help

[NOTAQUITTER]

I have difficulty in analyzing this code descriptor. I really can not find out exactly what is included in this procedure and what is not;

499446 Conversion of gastrostomy tube to gastro-jejunostomy tube, percutanous, under fluoroscopic guidance including contrast injection(s), image documentation and report

My question is which of the following items are included in this code?
1. Fluoroscopic guidance?
2.contrast injection(s)?
3. Image documentation and report?

Thanks