Official Site of The State of New Jersey
Emergency Department Visits due to Heat-Related Illness by County, May through September, New Jersey, 2023
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Emergency Department Visits due to Heat-Related Illness by County, May through September, New Jersey, 2023
Why Is This Important?
The relationship between extreme heat and increased daily morbidity is well established. This indicator captures emergency department visits for heat-related illness or hyperthermia.
Definition
Emergency department visits for heat-related illnesses for a defined population in a specified time interval. Cases were selected using the following ICD-9 codes through September 2015: 992.0 - 992.9, E900.0, or E900.9 as a primary diagnosis, injury cause, or other diagnosis for occurrences during the months of May through September. Cases were excluded if a man-made source of heat (ICD-9 E900.1) was listed. Beginning October 2015, heat-related illness was defined by ICD-10 codes T67, X30, and X32 (exclusion W92).
Data Notes
Data have been age-adjusted to the U.S. 2000 standard population.Data Sources
- Hospital Discharge Data Collection System (NJDDCS), Health Care Quality and Assessment, New Jersey Department of Health
(https://nj.gov/health/healthcarequality/health-care-professionals/njddcs/) - Population Estimates Program, U.S. Census Bureau
(https://www.census.gov/programs-surveys/popest.html)
How the Measure is Calculated
Numerator:
Number of emergency department visits for heat-related illness during the months of May through September.Denominator:
Estimated number of persons in the population.
Data Issues
'''Missing data in 2022:''' Three hospitals in Camden and Gloucester Counties submitted their fourth quarter data after the file closure deadline so their data are missing from the 2022 inpatient and emergency department datasets. '''Overall Discharge Volume in 2020: ''' Hospital claim volume for the 2020 calendar year was markedly lower (19.9%) than for 2019, mostly due to the COVID-19 pandemic. This reduction was seen in both inpatient discharges (8.2% lower claim volume than 2019) and emergency department visits (27.3% lower claim volume than 2019). This was likely the result of hospital care being redirected to address the care for COVID-19 patients while elective surgeries and other outpatient care services were being postponed. '''Caveats specific to 2017 data:''' NJDOH changed its vendor for hospitalization data collection in 2017 resulting in data loss at some facilities during the transition period. Additionally, The old vendor experienced a global malware incident in June 2017 that possibly resulted in the loss of some data in the system queue at that time. '''ICD Coding between 2015 and 2016: ''' The nationwide switch from ICD-9-CM to ICD-10-CM hospital diagnosis coding on October 1, 2015 disrupted trends for some diseases and conditions. Interpret trend data in this report with caution. Also note that New Jersey's data for October through December, 2015 was recoded to ICD-9-CM so that entire year of data was coded the same way.Related Health Objectives and Indicators
Environmental Public Health Tracking Indicator HRI-89
Description: Emergency department visits for heat-related illnesshttps://ephtracking.cdc.gov/indicatorPages?selectedContentAreaAbbreviation=35&selectedIndicatorId=89