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AHRQ Releases 2017 HCUP National Inpatient Sample

The Agency for Healthcare Research and Quality (AHRQ) released the 2017 National Inpatient Sample (NIS), a database containing data from more than 7 million hospital inpatient records. The NIS is drawn from 47 States and the District of Columbia, covering more than 97 percent of the U.S. population. NIS data can be weighted to produce national estimates, allowing researchers and policymakers to identify, track, and analyze national trends in healthcare utilization, access, charges, quality, and outcomes. The NIS is the largest publicly available inpatient healthcare database in the United States. It includes all patients, regardless of expected payer for the hospital stay.

The 2017 NIS is an annual calendar year file with diagnosis and procedure codes reported using only the International Classification of Diseases, Tenth Revision, Clinical Modification/Procedure Coding System (ICD-10-CM/PCS).

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