This article describes how driving evidence-based practice across the paediatric population using outcomes-driven acuity technology led to the formulation of a combined multihospital and health information technology acuity council. The cross-collaboration among acuity experts resulted in a pilot project being undertaken, implementing evidence-based practice using acuity data and expanding newborn and post-partum acuity outcome sets. The newborn acuity outcome set was expanded from four to seven outcomes, and the post-partum outcome set from nine to 12 outcomes. The revised outcome sets facilitate implementation of evidence-based practice to evaluate the effect of nursing care and practice on patient outcomes.