I am a little confused, patient was in observation care from 09/21-09/22 and had an EKG done (09/21) but my provider did not interpreted the report until 10/18/2020. According to CMS the date the review and interpretation was completed is the service date we will bill. Would I be billing as OP 10/18 for both service date and admission? Even though patient was not in the facility on this date of service?