I was wondering if someone could help me. A patient has an loop recorder placed at the beginning of the year. Our provider did an interrogation of the device CPT 93298. The Motoring of the device was from 06/01/18 to 06/30/18. The provider read and dictated the report on 07/02/2018. What DOS do you use when reporting CPT 93298. Do you use the DOS that the monitoring started on 06/01/2018 or the DOS the provider read it, 07/02/2018. IF you do know what DOS to use, can you please provide the guidelines that are to be used. Thank you in advance.