Development and interrater agreement of a novel classification system combining medical and surgical adverse event reporting.

Identifying and classifying adverse events is an important, yet often challenging, component of incident reporting. This article describes the development and testing of a novel Quality Improvement Classification System (QICS) designed to incorporate adverse events in both inpatient and outpatient settings across medical and surgical specialties in order to capture a broader range of outcomes related to patient care, including organizational issues, near-miss events, and expected deviations from ideal outcomes of surgery.