HEALTHCARE COST & UTILIZATION PROJECT

User Support

Do Your own analysis
Explore Expert Research & Limited Datasets

NRD File Specifications

In most data years, the NRD is comprised of the core data file and three additional files, in comma-separated values (CSV) format: Hospital File, Severity Measures File, and Diagnosis and Procedure Groups File. The Diagnosis and Procedure Groups File is not available for data years 2016-2017. The following links provide file specifications for the NRD including the dataset name, number of records, and record layout.

2021 NRD

Core File

Hospital File

Severity Measure File

Diagnosis and Procedure Groups File

Return to Contents

2020 NRD

Core File

Hospital File

Severity Measure File

Diagnosis and Procedure Groups File

Return to Contents

2019 NRD

Core File

Hospital File

Severity Measure File

Diagnosis and Procedure Groups File

Return to Contents

2018 NRD

Core File

Hospital File

Severity Measure File

Diagnosis and Procedure Groups File

Return to Contents

2017 NRD

Core File

Hospital File

Severity Measure File

Return to Contents

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). 03 2024. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/nation/nrd/nrdfilespecs.jsp.
Are you having problems viewing or printing pages on this website?
If you have comments, suggestions, and/or questions, please contact hcup@ahrq.gov.
Privacy Notice, Viewers & Players
Last modified 03/20/24