Ask Dr. Z

I was hoping you could shed some light on a case for me. A patient is brought in for an ICD battery replacement due to end of life. Prior to ICD replacement, the physician performs DFT testing with the old device to check the lead integrity. The results are normal and the physician proceeds with ICD replacement. Once the new device has been placed, the physician performs DFT with the new device. I know that CPT 93641 would be used for DFT after the replacement, but what can we use for the testing prior to the replacement? Is it appropriate to use CPT 93642 or is it possible to use CPT 93641 and 93641-59 or 93641-76?