Semantic mapping to simplify deployment of HL7 v3 Clinical Document Architecture

► We present three use cases for simplified HL7 V3 CDA messaging. ► The NHS Interoperability Toolkit uses 'green' CDA as an implementation option. ► Simplified CDA supports US federal criteria for 'meaningful use' of EHRs. ► Progress and issues with the interchange of social care assessments as CDA. ► Semantic mapping has broad potential for messaging and design modelling.