Pilot Deployment of ePNa Into Epic EHR

Inclusion Criteria: For the baseline database and assessment of clinical outcomes, all data will be pulled from the Epic Clarity data warehouse. * 2500 patients that presented to the Vanderbilt and Wilson county EDs who are \>= 18 years old will be identified by ICD-10 codes for pneumonia or acute respiratory failure or sepsis with secondary pneumonia codes for the baseline database. * An additional 2500 patients that presented to the Vanderbilt and Wilson county EDs who are \>= 18 years old will be identified by having had conventional PA (posteroanterior) and lateral or portable CXRs (chest X-rays), independent of ICD-10 codes. * During the one year pilot trial, patients seen in the 2 EDs, who are \>= 18 years old will be identified by ICD(International Classification of Diseases)-10 codes for pneumonia or acute respiratory failure or sepsis with secondary pneumonia codes (estimated to comprise 1800 patients). Exclusion Criteria: For all above patients: 1. Patients seen with a history of recent trauma. 2. Subsequent episodes of pneumonia from the same patient within the study period. 3. Patients directly admitted to hospice/comfort care. 4. Patients admitted to a non-study hospital for further care. 5. Patients transferred from outside hospitals. For the groups selected by ICD-10 pneumonia codes, an additional exclusion is: • Patients without radiographic evidence of pneumonia or with clear radiographic evidence for an alternative diagnosis.