-
hcup-us.ahrq.gov/db/vars/ndx/nedsnote.jsp
May 01, 2015 - NDX indicates the total number of ICD-9-CM diagnoses (valid and invalid) coded on the discharge record … Value
Description
0
No diagnoses are coded on the record
1
Only the first listed … In Q1 2008, about 93,000 records have only 1 diagnosis in these 11 hospitals. … In quarter two through four of 2008, about 48,000 records per quarter have only 1 diagnosis reported … We therefore estimate that about 45,000 records are missing secondary diagnoses in the 11 hospitals.
-
hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2019.pdf
January 01, 2019 - “combined” record in the NRD and
removed the original separate discharge records from the NRD. … ” record. … “combined” record in the NRD and removed the original
separate discharge records from the NRD. … Records that were part of transfers or same-day stays were collapsed into a single combined
record. … Creating a Combined Transfer Record
Combining information across transfer and same-day stay records
-
hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2010-2018.pdf
January 01, 2018 - “combined” record in the NRD and
removed the original separate discharge records from the NRD. … ” record. … “combined” record in the NRD and removed the original
separate discharge records from the NRD. … Records that were part of transfers or same-day stays were collapsed into a single combined
record. … Creating a Combined Transfer Record
Combining information across transfer and same-day stay records
-
hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2010-2018.jsp
January 01, 2018 - "combined" record in the NRD and removed the original separate discharge records from the NRD. … " record. … "combined" record in the NRD and removed the original separate discharge records from the NRD. … Records that were part of transfers or same-day stays were collapsed into a single combined record. … Creating a Combined Transfer Record
Combining information across transfer and same-day stay records
-
hcup-us.ahrq.gov/db/nation/nis/nis_2004_stspecific_restr.jsp
January 01, 2004 - age in days, (AGEDAY), age in years (AGE), sex (FEMALE), and race (RACE), were suppressed for some records … FL
Florida Agency for Health Care Administration
Confidentiality of Records
… Confidentiality of Records
Georgia requested that the patient�s race … NH
New Hampshire Department of Health & Human Services
Confidentiality of Records … HIV or drug/alcohol use patients are identified by any principal or secondary diagnosis code on the record
-
hcup-us.ahrq.gov/db/state/siddist/siddist_filecompri.jsp
August 01, 2006 - The overall
number of discharge records is similar to previous years as well as the inpatient … Each record contains an inpatient segment, an observation
stay (OS) segment, a summary segment, … Exclusion of Records During HCUP Data Processing
Records with a discharge disposition of "still
-
hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2013.pdf
January 01, 2013 - “combined” record in the NRD and
removed the original separate discharge records from the NRD. … In addition, pairs of discharge records representing
transfers (i.e., one discharge record from the … “combined” record in the NRD and removed the original
separate discharge records from the NRD. … We collapsed records that were part of transfers and same-day stays into a single combined
record. … Creating a Combined Transfer Record
Combining information across transfer and same-day stay records
-
hcup-us.ahrq.gov/db/vars/dqtr_x/nisnote.jsp
September 01, 2008 - sampled one fourth of the Massachusetts NIS discharges from the first three quarters and modified the records … diagnosis group for the principal diagnosis, sex, age, and a random number before selecting every fourth record … The following describes the adjustments made to the selected Massachusetts NIS records:
We relabeled … We then adjusted the discharge weights for the Massachusetts records to appropriately account for the
-
hcup-us.ahrq.gov/reports/methods/2011_01.pdf
January 01, 2011 - These are defined by multiple records in which the discharge date of one hospital
record is the same … separate records. … Reasons to Collapse Same-Day Hospital Records into One Combined Record
If the multiple same-day event … records are combined into a summary record, then a study of
revisits will consider the care received … into One Combined Record
Reasons to Retain Same-Day Hospital Events as Separate Records
Categorizing
-
hcup-us.ahrq.gov/datainnovations/raceethnicitytoolkit/or28.pdf
November 15, 2011 - urban Indian health center in Seattle
Tribe-specific data obtained for special projects
• Results of record … linkages used to close the data gap
Record linkage approach
Northwest Portland Area Indian Health … Conduct probabilistic record linkages between
the NTR and health-related datasets in ID, OR,
and WA … race
data reported
back to state
De-identified data
for analysis
Hosp. discharge
Cancer
Death records … , 55% misclassified or
unknown race
• Oregon acute & communicable disease
registry
40% of AI/AN records
-
hcup-us.ahrq.gov/reports/race/50StateScan04_26forweb.pdf
December 01, 2010 - Tobacco Use
Health Status Not specified Arizona
Department of
Health Services
Not specified Vital Records … Health,
Physical Activity, Tobacco Use
Both Not specified AR DOH Not specified Census, BRFSS, Vital Records … Fetal Occupational Injuries,
Current Population Survey), DPH
Infectious Diseases Section, Vital
Records … , Death
Records, BRFSS, ED/ER
Geographic
(County)
African American (in
one data book),
Hispanic … NJ DHSS State BRFSS, Vital Records, ED/ER,
Other
Geographic
(State)
White, Black,
Hispanic,
Asian
-
hcup-us.ahrq.gov/db/nation/nass/nasscorrections_2022.jsp
January 01, 2022 - over- or under-represented in the 2022 Nationwide Ambulatory Surgery Sample (NASS) due to about 3,000 records … The impact of omitting these records from the NASS’s 9,097,088 sampled encounters will vary by ambulatory
-
hcup-us.ahrq.gov/db/nation/neds/nedscorrections_2022.jsp
January 01, 2022 - under-represented in the 2022 HCUP Nationwide Emergency Department Sample (NEDS) due to about 8,900 records … The impact of omitting these records from the NEDS sample may cause some instability in trends and/or
-
hcup-us.ahrq.gov/db/state/siddist/siddist_filecompnd.jsp
August 01, 2025 - Exclusion of Records During HCUP Data Processing
Records with a discharge disposition of "still
-
hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2010-2015.pdf
January 01, 2015 - “combined” record in the NRD and
removed the original separate discharge records from the NRD. … ” record. … “combined” record in the NRD and removed the original
separate discharge records from the NRD. … We collapsed records that were part of transfers or same-day stays into a single combined
record. … Creating a Combined Transfer Record
Combining information across transfer and same-day stay records
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Sources_and_Restrictions_2001.pdf
January 01, 2001 - FL Florida Agency for Health Care Administration
Confidentiality of Records
• Florida does … Confidentiality of Records
Georgia requested that the patient’s race (RACE) be set to missing in … Missing Discharges
The Nebraska Hospital Association prohibits the release of discharge
records … Pennsylvania requested that patient age (AGE) be set to the midpoint of
5-year intervals for records … HIV or drug/alcohol use patients are identified by any
principal or secondary diagnosis code on the record
-
hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2019.jsp
January 01, 2019 - on the record. … The HCUP criterion for identifying an ED record (i.e., a discharge record for a patient with an ED visit … The NEDS contains encounter -level records, not patient -level records. … , record length, and record layout
Nationwide SAS Load Programs
Nationwide SPSS Load Programs … Record identifier, synthetic
KEY_ED
Unique HCUP NEDS record number - links to NEDS Supplemental Files
-
hcup-us.ahrq.gov/db/vars/prdayn/nisnote.jsp
September 01, 2008 - These records failed the appropriate edit check. … As a rule in HCUP processing, records that contain procedure days not during the stay are flagged by … Records that contain procedure days not during the stay are flagged by an edit check and the procedure … Also in 1995, a data processing error in the source data resulted in a number of records with procedure … These records are flagged by an edit check during HCUP processing.
-
hcup-us.ahrq.gov/db/vars/prdayn/kidnote.jsp
September 01, 2008 - These records failed the appropriate edit check. … As a rule in HCUP processing, records that contain procedure days not during the stay are flagged by … Records that contain procedure days not during the stay are flagged by an edit check and the procedure … Also in 1995, a data processing error in the source data resulted in a number of records with procedure … These records are flagged by an edit check during HCUP processing.
-
hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2010-2016.pdf
January 01, 2016 - “combined” record in the NRD and
removed the original separate discharge records from the NRD. … ” record. … “combined” record in the NRD and removed the original
separate discharge records from the NRD. … We collapsed records that were part of transfers or same-day stays into a single combined
record. … Creating a Combined Transfer Record
Combining information across transfer and same-day stay records