Median Time from ED Arrival to ED Departure for Admitted ED Patients

Last updated: May 3, 2018

CMS Measure ID: CMS55v6
Version: 6
NQF Number: 0495
Measure Description:

Median time from emergency department arrival to time of departure from the emergency room for patients admitted to the facility from the emergency department

Initial Patient Population:

Inpatient Encounters ending during the measurement period with Length of Stay (Discharge Date minus Admission Date) less than or equal to 120 days, and preceded within an hour by an emergency department visit at the same physical facility

Measure Population:

Equals initial population

Measure Observations:

Time (in minutes) from ED facility location arrival to ED facility location departure for patients admitted to the facility from the emergency department

Measure Steward: Centers for Medicare and Medicaid Services (CMS)
Short Name: ED1
Next Version:
Previous Version:
Improvement Notation:

Improvement noted as a decrease in the median value

Guidance:

This measure specification defines how to determine the duration of an individual Emergency Department encounter. Reporting requires the median of all ED encounter durations defined as [Encounter: encounter ED] facility location departure date and time minus [Encounter: encounter ED] ED facility location arrival date and time.

Calculate the ED time in minutes for each patient in the measure population; report the median time for all calculations performed. The specification provides elements from the clinical electronic record required to calculate for each ED encounter, i.e., the length of time the patient was in the Emergency Department, also stated as: the Datetime difference between the Emergency Department facility location departure datetime and the Emergency Department facility location arrival datetime. The calculation requires the median across all ED encounter durations.

For each population, results should be reported without stratification and then with each stratum applied. For this measure, the number of encounters that fall into the Initial Population are reported without stratification, then reported according to the defined stratification. The number of encounters that fall into the Measure Population are reported without stratification, then reported according to the defined stratification. The computed continuous variable defined by the Measure Observation is reported for the Measure Population also, then reported according to the defined stratification.

Notes: Value Set content updated Sept 2017

Specifications

Release Notes

Header

  • Incremented eMeasure Version number.

    Measure Section: eMeasure Version number

    Source of Change: Measure Lead

  • ​Replaced 'admission' with 'arrival' and 'discharge' with 'departure' to align with logic.

    Measure Section: Description

    Source of Change: Measure Lead

  • Updated Copyright.

    Measure Section: Copyright

    Source of Change: Annual Update

  • Replaced the word 'person' with 'patient' to make sentence more specific.

    Measure Section: Guidance

    Source of Change: Measure Lead

Value Set

The VSAC is the source of truth for the value set content, please visit the VSAC for downloads of current value sets.

  • Value set Psychiatric/Mental Health Patient (2.16.840.1.113883.3.117.1.7.1.299): Added 5 SNOMEDCT codes (247444006, 288511000119108, 596004, 715924009, 72366004) to align with the ICD10CM codes and deleted 2 SNOMEDCT codes (229714007, 88339003).

    Measure Section: QDM Data Elements

    Source of Change: Annual Update

  • Value set Psychiatric/Mental Health Patient (2.16.840.1.113883.3.117.1.7.1.299): Deleted 2 SNOMEDCT codes (231457005, 231535000). Added 10 ICD10CM codes.

    Measure Section: QDM Data Elements

    Source of Change: 2018 Addendum

External Resources