This document discusses knowledge management in healthcare through data mining patient encounter databases. It explains that knowledge management improves organizational performance by transforming data files into insights across departments. Building a single database that combines patient demographic, clinical, and financial information from different software applications allows mining the data for root cause analysis, performance indicators, and patterns. Understanding relationships in the data provides leadership with empirically-based solutions by benchmarking against the healthcare industry's knowledge base. When data mining healthcare databases, it is important to include essential patient and clinical information as well as linking to external sources to facilitate meaningful measurements and insights.