The document discusses the IHI Global Trigger Tool, which is used to identify adverse events in inpatient populations by focusing on harm or injury from the patient's perspective. It defines harm as an unintended physical injury from or contributed to by medical care that requires additional monitoring, treatment or hospitalization, or results in death. The tool includes adverse events related to active delivery of care but excludes events related to substandard care. It then lists the various trigger modules used in the tool, including care, emergency, medication, intensive care, perinatal care, and surgical care modules. Each module lists specific triggers or events that would indicate an adverse event occurred.