Annals of emergency medicine
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We determine whether it is feasible to identify 90% of emergency department (ED) patients who subsequently receive a hospital discharge diagnosis of community-acquired pneumonia using the current Joint Commission on Accreditation of Healthcare Organizations (JCAHO)/Centers for Medicare and Medicaid Services (CMS) community-acquired pneumonia core measures criteria. ⋯ It may not be possible to identify 90% of hospitalized patients with a discharge diagnosis of community-acquired pneumonia during their ED assessment by using the current JCAHO/CMS criteria. It may therefore be unrealistic to expect that 90% of such patients will have antibiotics delivered within 4 hours of hospital presentation. A more realistic performance standard for antibiotic administration should be established or case definitions modified to include only patients with a final ED community-acquired pneumonia diagnosis or objective clinical and radiographic evidence.