Category Standard Organisation Health Level Seven (HL7) Type Standard Version 2 Access Open Status Active This standard provides a message model for describing an observation of an interrogator at a physical location who is performing an interrogation of a therapeutic medical device (bound to a patient) using identifiable interrogation equipment. Access HL7 Version 3 Standard: Implantable Device Cardiac - Follow-up Summary, Release 2 By accessing this content, you are leaving this website. The Agency takes no responsibility for the accuracy of content on the destination page.