EHR(Electronic Health Record) being central to most health informatics applications, several countries have initiated programs for implementing national EHR infrastructures. In addition, there exist ISO standard and European Union standard in health informatics. Building and implementing a national EHR infrastructure requires understanding of healthcare standards, coding systems, and standard frameworks. Hence, for using, developing and promoting any health informatics application (including EHR infrastructure), it is imperative for the concerned team/group to study and evaluate existing material on past and ongoing work in these areas. Due to lack of a book that consolidates this information, the concerned team/group finds it frustrating and time consuming to collect, study, analyse and evaluate this information from multiple sources. The authors of this book faced similar difficulty while working towards building a national EHR framework. This motivated the authors to compile their study and analysis result in the form of a book for the benefit of others working in similar areas.
