Clinical Document Architecture Release 2 (CDA R2)

Clinical Document Architecture Release 2 (CDA R2) is a standard format developed by Health Level Seven International (HL7) for creating and sharing electronic health documents. It ensures that clinical information—such as medical history, test results, and treatment plans—is consistently structured and easily exchangeable between healthcare systems. CDA R2 uses a combination of structured data and human-readable content within a secure, standardized document. This facilitates better communication among healthcare providers, improves accuracy, and supports coordinated patient care across different medical facilities and electronic health record systems.