Abstract
One of the most important procedures when working with a patient with a known or suspected acquired injury or neurodegenerative condition is determining their premorbid level of neurocognitive functioning. Although this process has been relatively well-researched in the adult/geriatric neuropsychological literature, there are comparatively few publications for the pediatric population and less consensus regarding how to translate findings into practice. This is likely due to a combination of factors, including children having obtained fewer developmental milestones, the highly variable nature of neurodevelopment in children, and that pediatric neuropsychologists frequently work with children with congenital/neurodevelopmental conditions in which determination of premorbid functioning may feel less important. This manuscript reviews the literature on this topic and offers recommendations for the best practice as well as future research directions in the estimation of premorbid functioning in a pediatric population.