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hcup-us.ahrq.gov/nrdoverview.jsp
September 01, 2025 - THE NRD CONTAINS A FULL YEAR OF ICD-10-CM/PCS CODES BEGINNING WITH DATA YEAR 2016
The NRD includes … a full calendar year of data with diagnosis and procedure codes reported using the ICD-10-CM/PCS 1 … coding system beginning with data year 2016. … The overall number of discharges for data year 2022 decreased by about 1.7 percent from 2021. … The NRD includes discharges for patients with and without repeat hospital visits in a year and those
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hcup-us.ahrq.gov/spssload/spssload_search.jsp
September 01, 2025 - SPSS load programs are provided by State, by year, by database type. … Select a State, data year, and database, then click the Find button. … 1994
1993
1992
1991
1990
Database:
SID
SASD
SEDD
Data year … specific notes:
Starting with data year 2021, the SPSS load programs for the AHA Linkage Files are … Prior to data year 2000, SAS informats were not always included in the SAS load program.
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hcup-us.ahrq.gov/db/vars/age/nisnote.jsp
September 01, 2008 - The age edit checks vary by year. … In prior years, only a two-digit year was available. … Iowa
AGE may differ by one year from the actual age. … Beginning in 1994, New Jersey provides a four-digit birth year. … Prior to 1996, date of birth (DOB) was supplied with a four-digit year.
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hcup-us.ahrq.gov/db/ccr/ed-ccr/ED_CCR_User_Guide_External_2012-2021.pdf
January 01, 2021 - Separate CCR Files are released for each data year and should be used with the corresponding
year of … following the HCRIS data year. … All CCR Files also include data year (YEAR) and area wage index (WAGEINDEX or WI_X),
which is an index … YEAR Numeric Data year CD-SEDD, 2012–
2021; NEDS 2012–
2021
Abbreviations: AHA, American Hospital … Records (Hospitals) in the CCR for CD-SEDD, by Year and Presence of APECC
and GAPECC
Year Number of
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hcup-us.ahrq.gov/db/nation/nrd/HCUPAnalysisICD10Readmissions.pdf
June 12, 2020 - .......................... 2
Changes From ICD-9-CM to the Introduction of ICD-10-CM/PCS in Fiscal Year … 2016 to Fiscal Year 2017 ........................... 5
Diagnosis-Related Groups ................. … 2016 ......... 7
Changes From ICD-10-CM/PCS in Fiscal Year 2016 to Fiscal Year 2017 .............. … Changes From ICD-10-CM/PCS in Fiscal Year 2016 to Fiscal Year 2017
The second part of this analysis … Fiscal Year 2016 to Fiscal Year 2017
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hcup-us.ahrq.gov/db/ccr/ip-ccr/Inpatient_CCR_User_Guide_External_2001-2021.pdf
January 01, 2021 - Separate CCR Files are released for each data year and should be used with the corresponding
year of … following the HCRIS data year. … All CCR Files also include data year (YEAR) and area wage index (WAGEINDEX or WI_X),
which is an index … CCR for CD-SID Record (Hospital) Counts by Year
Year
Number of Records (Hospitals)
CCR for CD-SIDa … Records (Hospitals) in the CCR for CD-SID, by Year and Presence of APICC and GAPICC
Year Number of
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hcup-us.ahrq.gov/db/nation/nis/NIS_1999_HOSPITAL.pdf
January 01, 1999 - - Calendar year
The discharge year (YEAR) is always coded. … In the 1988-1997 HCUP databases, YEAR is two-digits (e.g., if
the discharge year is 1990, then YEAR … Beginning in the 1998 HCUP databases, YEAR is four-digits
(e.g., 1998). … None
General Notes
Uniform Values
Variable Description Value Value Description
YEAR Calendar year … 2-digit
calendar year
in 1988-1997
data
yy
4-digit
calendar year
beginning with
1998 data
yyyy
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hcup-us.ahrq.gov/db/nation/nrd/nrdchecklist.jsp
November 01, 2024 - The values of KEY_NRD differ from year to year, except across the 2013-2014 NRD. … To check for year-to-year variation in administrative codes, consult with a medical coding professional … 2015 and the NRD Diagnosis and Procedure Groups File beginning data year 2019. … ⬜
Account for year- based differences in data element availability in the NRD. … For example, the number of diagnosis codes present can vary by year.
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hcup-us.ahrq.gov/db/nation/nis/NISIntroduction2022.pdf
November 01, 2024 - BEGINNING WITH DATA YEAR 2016, THE NIS CONTAINS A FULL YEAR OF ICD-10-CM/PCS
CODES. … Beginning with data year 2016, the NIS includes a full calendar year of data with diagnosis and
procedure … The NIS is an annual, calendar
year file, except for data year 2015, which was split into two parts … to year. … Discharge Year YEAR Discharge year
N_HOSP_U Number of universe hospitals in the stratum
S_HOSP_U
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hcup-us.ahrq.gov/reports/statbriefs/sb202-Mental-Substance-Use-Teenagers.pdf
November 01, 2015 - than
for 13-year-olds (19-year-olds: 192
stays per 100,000 population; 13-
year-olds: 261 stays per … than among 13-year-olds (19-year-
olds: 137 stays per 100,000
population; 13-year-olds: 3 stays
per … than among 13-year-olds (19-year-olds: 192 stays per 100,000
population; 13-year-olds: 261 stays per … among 13-year-olds (19-year-olds: 137 stays per 100,000 population; 13-year-olds: 3 stays per
100,000 … to year.
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hcup-us.ahrq.gov/db/nation/nis/weights/SPSSload_NIS_1996_HOSPITAL_TrendWt.SPS
January 01, 1996 - DATA LIST FILE = 'NIS_1996_HOSPITAL_TrendWt.ASC' FIXED /
YEAR 1- 4 … FORMATS
YEAR (F4.0) /
HOSPID (F5.0) /
TRENDWT … VARIABLE LABELS
YEAR "Calendar year"
HOSPID "HCUP hospital … RECODE YEAR (-999 -888 -666=SYSMIS).
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hcup-us.ahrq.gov/db/nation/nis/weights/SPSSload_NIS_1997_HOSPITAL_TrendWt.SPS
January 01, 1997 - DATA LIST FILE = 'NIS_1997_HOSPITAL_TrendWt.ASC' FIXED /
YEAR 1- 4 … FORMATS
YEAR (F4.0) /
HOSPID (F5.0) /
TRENDWT … VARIABLE LABELS
YEAR "Calendar year"
HOSPID "HCUP hospital … RECODE YEAR (-999 -888 -666=SYSMIS).
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hcup-us.ahrq.gov/db/nation/nis/weights/SPSSload_NIS_1999_HOSPITAL_TrendWt.SPS
January 01, 1999 - DATA LIST FILE = 'NIS_1999_HOSPITAL_TrendWt.ASC' FIXED /
YEAR 1- 4 … FORMATS
YEAR (F4.0) /
HOSPID (F5.0) /
TRENDWT … VARIABLE LABELS
YEAR "Calendar year"
HOSPID "HCUP hospital … RECODE YEAR (-999 -888 -666=SYSMIS).
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hcup-us.ahrq.gov/db/nation/nis/weights/SPSSload_NIS_1994_HOSPITAL_TrendWt.SPS
January 01, 1994 - DATA LIST FILE = 'NIS_1994_HOSPITAL_TrendWt.ASC' FIXED /
YEAR 1- 4 … FORMATS
YEAR (F4.0) /
HOSPID (F5.0) /
TRENDWT … VARIABLE LABELS
YEAR "Calendar year"
HOSPID "HCUP hospital … RECODE YEAR (-999 -888 -666=SYSMIS).
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hcup-us.ahrq.gov/db/nation/nis/weights/SPSSload_NIS_1998_HOSPITAL_TrendWt.SPS
January 01, 1998 - DATA LIST FILE = 'NIS_1998_HOSPITAL_TrendWt.ASC' FIXED /
YEAR 1- 4 … FORMATS
YEAR (F4.0) /
HOSPID (F5.0) /
TRENDWT … VARIABLE LABELS
YEAR "Calendar year"
HOSPID "HCUP hospital … RECODE YEAR (-999 -888 -666=SYSMIS).
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hcup-us.ahrq.gov/db/nation/nis/weights/SPSSload_NIS_1993_HOSPITAL_TrendWt.SPS
January 01, 1993 - DATA LIST FILE = 'NIS_1993_HOSPITAL_TrendWt.ASC' FIXED /
YEAR 1- 4 … FORMATS
YEAR (F4.0) /
HOSPID (F5.0) /
TRENDWT … VARIABLE LABELS
YEAR "Calendar year"
HOSPID "HCUP hospital … RECODE YEAR (-999 -888 -666=SYSMIS).
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hcup-us.ahrq.gov/db/nation/nis/weights/SPSSload_NIS_1995_HOSPITAL_TrendWt.SPS
January 01, 1995 - DATA LIST FILE = 'NIS_1995_HOSPITAL_TrendWt.ASC' FIXED /
YEAR 1- 4 … FORMATS
YEAR (F4.0) /
HOSPID (F5.0) /
TRENDWT … VARIABLE LABELS
YEAR "Calendar year"
HOSPID "HCUP hospital … RECODE YEAR (-999 -888 -666=SYSMIS).
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hcup-us.ahrq.gov/db/nation/nis/weights/SPSSload_NIS_2005_HOSPITAL_TrendWt.SPS
January 01, 2005 - DATA LIST FILE = 'NIS_2005_HOSPITAL_TrendWt.ASC' FIXED /
YEAR 1- 4 … FORMATS
YEAR (F4.0) /
HOSPID (F5.0) /
TRENDWT … VARIABLE LABELS
YEAR "Calendar year"
HOSPID "HCUP hospital … RECODE YEAR (-999 -888 -666=SYSMIS).
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hcup-us.ahrq.gov/db/nation/nis/weights/SPSSload_NIS_2006_HOSPITAL_TrendWt.SPS
January 01, 2006 - DATA LIST FILE = 'NIS_2006_HOSPITAL_TrendWt.ASC' FIXED /
YEAR 1- 4 … FORMATS
YEAR (F4.0) /
HOSPID (F5.0) /
TRENDWT … VARIABLE LABELS
YEAR "Calendar year"
HOSPID "HCUP hospital … RECODE YEAR (-999 -888 -666=SYSMIS).
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hcup-us.ahrq.gov/db/nation/nis/weights/SPSSload_NIS_2007_HOSPITAL_TrendWt.SPS
January 01, 2007 - DATA LIST FILE = 'NIS_2007_HOSPITAL_TrendWt.ASC' FIXED /
YEAR 1- 4 … FORMATS
YEAR (F4.0) /
HOSPID (F5.0) /
TRENDWT … VARIABLE LABELS
YEAR "Calendar year"
HOSPID "HCUP hospital … RECODE YEAR (-999 -888 -666=SYSMIS).