Skip Navigation
Healthcare Cost and Utilization Project logo
NEDS Description of Data Elements
The NEDS is a set of hospital-based emergency department databases included in the HCUP family. These databases are created by AHRQ through a Federal-State-Industry partnership.
search icon
 
 
The Nationwide Emergency Department Sample (NEDS)

The Nationwide Emergency Department Sample (NEDS) produces national estimates about emergency department (ED) visits across the country. The NEDS describes ED visits, regardless of whether they result in admission, and is an exceptional resource for conducting research on high-profile emergent health delivery issues. One of the most distinctive features of the NEDS is its large sample size, which allows for analysis across hospital types and the study of relatively uncommon disorders and procedures. The links below provide detailed documentation for the NEDS.

The following links provide detailed documentation for the NEDS. State-Specific notes are not available at this time.
Check the corresponding boxes and then click
NEDS Core File NEDS Supplemental
ED File
NEDS Supplemental Inpatient File NEDS Hospital
Weights File
AGE
AMONTH
AWEEKEND
CHRONn
DIED_VISIT
DISCWT
DISP_ED
DQTR
DXn
DXCCSn
Ecoden
E_CCSn
EDEVENT
FEMALE
HCUPFILE
HOSP_ED
HOSP_REGION
INJURY
INJURY_CUT
INJURY_DROWN
INJURY_FALL
INJURY_FIRE
INJURY_FIREARM
INJURY_MACHINERY
INJURY_MVT
INJURY_NATURE
INJURY_POISON
INJURY_SEVERITY
INJURY_STRUCK
INJURY_SUFFOCATION
INTENT_ASSAULT
INTENT_SELF_HARM (2006+)
INTENT_UNINTENTIONAL
KEY_ED
MULTINJURY
NDX
NECODE
NEDS_STRATUM
PAY1
PAY2
PL_NCHS2006
TOTCHG_ED
YEAR
ZIPINC_QRTL
CPTCCSn (2008+)
CPTn
DISCWT
HCUPFILE
HOSP_ED
KEY_ED
NCPT
NPR_ED
PR_EDn
PRCCS_EDn
PCLASS_EDn
DISCWT
DISP_IP
DRG
DRG_NoPOA (2008+)
DRGVER
HCUPFILE
HOSP_ED
KEY_ED
LOS_IP
MDC
MDC_NOPOA
NPR_IP
PR_IPn
PRCCS_IPn
PCLASS_IPn
TOTCHG_IP
DISCWT
HOSP_CONTROL
HOSP_ED
HOSP_REGION
HOSP_TRAUMA
HOSP_URCAT4
HOSP_UR_TEACH
HOSPWT
N_DISC_U
N_HOSP_U
NEDS_STRATUM
S_DISC_U
S_HOSP_U
TOTAL_EDVISITS
YEAR
Check the corresponding boxes and then click

Internet Citation: HCUP NEDS Description of Data Elements. Healthcare Cost and Utilization Project (HCUP). September 2011. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/nation/neds/nedsdde.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.
Last modified 9/14/11