Prior to the approval of the Continuity of Care Document (CCD) as an ANSI Standard in 2007, electronic clinical document exchange could utilize one of…
Archive | July, 2008
HL7 Dates and Times
Moving dates and times between systems via HL7 has two primary challenges: Clock skew/drift — the systems don’t agree on the definition of “now” Time…
HL7 Time Zone Qualification
In most V2 messages are encoded using the local time on the system that generates the message; many interfaces do not support the concept nor…
An Overview of CCD Templates
The Continuity of Care Document (CCD) defines a detailed set of constraints, or templates, for CDA elements. Each template may have further supporting templates as…
What is an HL7 ADT Feed?
Any “feed”, whether an ADT feed, ORU feed or ORM feed, is basically a streamlined way of getting messages. In the HL7 standards world, ADT,…
RHIOs vs. Peer-to-Peer Communications
As noted in HIS-Talk, Former Meriter Hospital CIO Peter Strombom has written an interesting article on Wisconsin’s progress towards a regional health information exchange (RHIO). Peter’s history and…