The HL7 Clinical Document Architecture is an ANSI standard with release 2 being published early in 2005. Like other HL7 standards it is based on the reference information model (RIM) and is designed to capture information as a document and then be stored in EHR systems. A feature of the CDA is its ability to be viewed in a browser using a single style sheet, ensuring everyone can read the record. Structured information can also be recorded and be used in different systems. The information is recognisable by different systems through use of shared terminology, such as SNOMED and LOINC.
The CDA standard holds great potential for sharing information and is being trialled in many countries including the Netherlands, Germany, Japan and Mexico to name a few.
Dolin RH, Alschuler L, Boyer S, Beebe C, Behlen FM, Biron PV, Shabo A. HL7 Clinical Document Architecture, Release 2. J Am Med Inform Assoc. 2005 Oct 12;