Objective: We sought to 1) validate the accuracy of pre-encounter hospital designation as a novel way to identify unplanned pediatric readmissions, and 2) describe the most common diagnoses for unplanned readmissions among children.
Methods:We examined all hospital discharges from two tertiary care children's hospitals excluding deaths, normal newborn discharges, transfers to other institutions, and discharges to hospice. We performed blinded medical record review on 641 randomly selected readmissions to validate the pre-encounter planned/unplanned hospital designation. We identified the most common discharge diagnoses associated with subsequent 30-day unplanned readmissions.Results: Among 166,994 discharges (Hospital A: n=55,383; Hospital B: n=111,611), the 30-day unplanned readmission rate was 10.3% (Hospital A) and 8.7% (Hospital B). The hospital designation of "unplanned" was correct in 98% (Hospital A) and 96% (Hospital B) of readmissions; the designation of "planned" was correct in 86% (Hospital A) and 85% (Hospital B) of readmissions. The most common discharge diagnoses for which unplanned 30-day readmissions occurred were oncologic conditions (up to 38%) and non-hypertensive congestive heart failure (about 25%), across both institutions.Conclusions: Unplanned readmission rates for pediatrics, using a validated, accurate, pre-encounter designation of "unplanned," are higher than previously estimated. For some pediatric conditions unplanned readmission rates are as high as readmission rates reported for adult conditions. Anticipating unplanned readmissions for high-frequency diagnostic groups may help focus efforts to reduce the burden of readmission for families and facilities.3