Clinical Document Architecture

The HL7 Clinical Document Architecture (CDA) is an XML-based markup standard intended to specify the encoding, structure and semantics of clinical documents for exchange.CDA is based on the HL7 Reference Information Model (RIM) and the HL7 Version 3 Data Types, although it can be used independently of any HL7 Version 3 messaging (i.e., CDA documents can be exchanged using other mechanisms, such as HL7 Version 2, DICOM, MIME attachments to email, http or ftp, etc.).The CDA tries to ensure that the content will be human-readable and is therefore required to contain narrative text, yet still contain structure, and most importantly, allow for the use of codes (such as from SNOMED and LOINC) to represent concepts.
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Die Clinical Document Architecture (CDA) ist eine von HL7 erarbeitete auf XML basierende Dokumentenarchitektur zur Übermittlung klinischer Inhalte. Dabei entspricht ein CDA-Dokument einem klinischen Dokument (z. B. Arztbrief, Befundbericht). Es erfolgt keine Zusammenfassung mehrerer Dokumente wie in einer Patientenakte. CDA Release 1 (November 2000) und CDA Release 2 (Mai 2005) wurden von der amerikanischen Normungsbehörde  ANSI/ASTM akkreditiert. Die CDA gilt als der erste offizielle Standard im Gesundheitswesen auf der Basis von XML. CDA Release 2 basiert auf dem HL7 Reference Information Model (RIM).
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Clinical Document ArchitectureThe CDA was initially known as the Patient Record Architecture (PRA). It is an XML vocabulary that was designed to provide an exchange model for clinical documents such as discharge summaries and progress notes. CDA brings the healthcare industry one step closer to the realization of an electronic medical record. The CDA Standard is expected to be published as an ANSI approved standard.More Information