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

Last updated: October 25, 2017

CMS Measure ID: CMS32v7
Version: 7
NQF Number: 0496
Measure Description:

Median elapsed time from emergency department arrival to emergency room departure for patients discharged from the emergency department

Initial Patient Population:

Emergency department encounters during the measurement period

Measure Population:

Equals initial population

Measure Observations:

Median elapsed time (in minutes) from emergency department arrival to emergency room departure for patients discharged from the emergency department

Measure Steward: Centers for Medicare and Medicaid Services (CMS)
Short Name: ED3
Previous Version: Median Time from ED Arrival to ED Departure for Discharged ED Patients
Improvement Notation:

Improvement noted as a decrease in the median value

Guidance:

This measure uses a continuous variable. 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 Emergency Department departure time minus the Emergency Department arrival time. The calculation requires the median of all ED encounter durations. This measure specification defines how to determine an individual Emergency Department stay. Reporting requires the median of all patient stays ([Encounter: encounter ED].facility location departure date and time minus [Encounter: encounter ED].facility location arrival date and time).

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.

Addendum 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

  • Updated Copyright.

    Measure Section: Copyright

    Source of Change: Annual Update

  • Removed statement related to reporting period as this information is maintained elsewhere​.

    Measure Section: Guidance

    Source of Change: JIRA (CQM-1917)

Logic

  • Replaced 'Transfer To <= 6 hours starts after or concurrent with end of' to 'discharge status: Discharge to Acute Care Facility' in stratification 2 and 3 to harmonize with other measures.

    Measure Section: Stratification

    Source of Change: JIRA (CQM-1917)

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

  • Replaced 'Acute care hospital' value set (2.16.840.1.113883.3.666.5.684) with 'Discharge to Acute Care Facility' (2.16.840.1.113883.3.117.1.7.1.87) to align with logic change in stratification and with other measures.

    Measure Section: QDM Data Elements

    Source of Change: JIRA (CQM-1917)

  • 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