CMS Raises the Stakes on Emergency Department Flow for 2027 and Beyond

CMS introduced the Emergency Care Access and Timeliness (ECAT) measure in the 2026 OPPS final rule, establishing ED throughput, boarding, and patient access as formal indicators of clinical quality with direct financial consequences. The composite eCQM evaluates four thresholds — arrival-to-placement time exceeding one hour, inpatient boarding beyond four hours, total ED length of stay over eight hours, and patients leaving without being seen (LWBS) — stratified by age and mental health diagnosis status. Voluntary reporting begins in 2027, mandatory reporting in 2028, and hospitals that fail to meet OQR requirements face a 2.0 percentage point reduction in their annual OPPS payment update tied to the 2030 payment determination. Because ECAT measures system-wide care continuum performance rather than isolated departmental metrics, hospital leaders who address the operational root causes of boarding and placement delays now — rather than treating ECAT as a documentation exercise — will be best positioned to protect both patient access and financial performance before penalties take effect.