This Statistical Brief presents data from the Healthcare Cost and Utilization Project (HCUP) on bicycle-related emergency department (ED) visits and inpatient hospitalizations in 2009. These visits and stays are identified using the external cause of injury codes (E-codes), which appear on the record as a secondary diagnosis. Characteristics of all ED visits and hospitalizations for bicycle injuries are compared to the average injury-related ED visit and inpatient hospital stay. Furthermore, bicycle injuries involving motor vehicles are compared to those not involving motor vehicles. Age, patient residence, and utilization characteristics are explored, as well as the most common injuries and procedures performed for bicycle-related ED visits and hospital stays.