The Omaha System is a comprehensive, research-based classification system designed for use in diverse community, case management, long-term care, and educational settings to enhance health care practice, documentation, and information management. Consisting of three interrelated components – the Problem Classification Scheme, the Intervention Scheme, and the Problem Rating Scale for Outcomes – it provides a structure to document client needs and strengths, describe practitioner interventions, and measure client outcomes. The 2nd edition of this practical resource describes how to use the revised version of the Omaha System in practice, education, and research – including the latest modifications to terms, definitions, and codes. It replaces two previous Omaha System publications.