Definitions of AHRQ Utilization Indicators

This document presents the definitions for the AHRQ utilization indicators, including the retired ones. The utilization rates were calculated for the procedures performed in California hospitals. They are not related to the Let's Get Healthy California indicators. This dataset does not include procedures performed in outpatient settings. Different versions of AHRQ software were applied to different years. Specifically, 2020-2024 data were generated with Version 2025, while years prior to 2020 were generated with earlier versions of AHRQ software.