Health informatics is the field that integrates information technology, healthcare and communications for improving the quality and safety of patient care. It uses health information technology to improve healthcare through a combination of higher efficiency, higher quality and improved opportunities. Health informatics tools include information and communication systems, computers, clinical guidelines, formal medical terminologies, etc. for improving the effectiveness of patient care delivery. For designing a robust information system, it is imperative to identify changing requirements and improve system design. This facilitates health information, improved quality of care, and decentralized planning and management. This book elucidates the concepts and innovative models around prospective developments with respect to health informatics. While understanding the long-term perspectives of the topics, it makes an effort in highlighting their impact as a modern tool for the growth of the discipline. It attempts to assist those with a goal of delving into this field.