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The data in this section are focused on ambulatory care visits to emergency rooms of non-Federal, short-stay hospitals.
The emergency room (ER) and the inpatient hospitalization data aremutually exclusive. The ER data include only those who
were not admitted as inpatients.
All emergency room visits are those of the residents of Arizona. Ambulatory care visits to hospital emergency rooms of out-
of-state residents are not included in this report. Diagnostic groupings and code numbers are based on the International
Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM).
*Findings of the National Hospital AmbulatoryMedical Care Survey, including data on trends in ER utilization, are available in bound reports of
the National Center for Health Statistics and online at
Arizona Health Status and Vital Statistics 2013
253
