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NRD File Specifications
The HCUP Nationwide Readmissions Database (NRD) is a set of inpatient databases in the HCUP family designed for readmission analyses. These HCUP databases are created by AHRQ through a Federal-State-Industry partnership.
 
NRD File Specifications

The NRD is comprised of the core data file and three additional files, in comma-separated values (CSV) format: Hospital Weights File, Severity Measures File, and Diagnosis and Procedure Groups File. The following links provide file specifications for the NRD including the dataset name, number of records, and record layout.
 
2016 NRD

Core File Hospital File Severity Measure File Return to Contents


2015 NRD

Core File Hospital File Severity Measure File for Discharge Quarters 1-3 (ICD-9-CM) Severity Measure File for Discharge Quarter 4 (ICD-10-CM/PCS) Diagnosis and Procedure Groups File for Discharge Quarters 1-3 (ICD-9-CM) Diagnosis and Procedure Groups File for Discharge Quarter 4 (ICD-10-CM/PCS) Return to Contents


2014 NRD

Core File Hospital File Severity Measure File Diagnosis and Procedure Groups File Return to Contents


2013 NRD

Core File Hospital File Severity Measure File Diagnosis and Procedure Groups File Return to Contents


2012 NRD

Core File Hospital File Severity Measure File Diagnosis and Procedure Groups File Return to Contents


2011 NRD

Core File Hospital File Severity Measure File Diagnosis and Procedure Groups File Return to Contents


2010 NRD

Core File Hospital File Severity Measure File Diagnosis and Procedure Groups File Return to Contents



Internet Citation: NRD File Specifications. Healthcare Cost and Utilization Project (HCUP). August 2018. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/nation/nrd/nrdfilespecs.jsp.
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Last modified 8/10/18