Question Elizabeth Harding · Jun 27, 2016 HealthShare HL7 Annotations - Explicit vs Implicit usage In the HL7 Annotations available in the Management Portal, at the message type and message structure levels, there are columns for 'Explicit Usage' and 'Implicit Usage'. In nearly all cases, the values in these two columns match, but at least for message types RAS and RGR, they don't.What's the meaning of explicit and implicit in the annotations?Thanks,Liz #HealthShare 0 1 0 542