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In question ID 8519 (answered in 2016) regarding a delayed extension of an intraperitoneal catheter extension, the example states that the exit site is the left upper quadrant, but the CPT description is for remote Chest exit site. I can't find any resource the clarifies the remote chest exit site can include an upper abominal quadrant. To be fair, our cases perform the extension at the time of initial placement (49324) but for future coding and auditing purposes, can you let us know where this clarification comes from and why we can code 49325 for an extension into the abdominal area?