Ask Dr. Z

Patient with an EV-ICD presents for relocation and DFT testing. The EV-ICD was relocated to a sub serratus position. "Further dissection was performed to achieve space in the sub serratus position where the generator was relocated to. Positioning was confirmed on lateral fluoroscopy and was also more posterior than the original placement." DFT testing was also performed. Please advise on appropriate coding for this case. Would you suggest an unlisted?