Psychological and neuropsychological assessments in hospital settings must consider the reason for referral, the child’s characteristics, and the specific clinical context. This process involves formulating diagnostic hypotheses, selecting appropriate instruments, and integrating findings to guide timely intervention. This study, part of a University Extension Program at the Faculty of Psychology, University of Buenos Aires, carried out at the Hospital de Clínicas “José de San Martín,” aims to detect developmental risk or developmental delay in children referred for diagnostic evaluation to intervene according to each child’s capacities and needs. We present a preliminary descriptive analysis of assessments conducted between 2023 and 2025 in 39 children aged 0–12 years referred from pediatrics, neurology, child psychiatry, nutrition, pulmonology, judicial services, schools, and other health institutions in Buenos Aires City and Province. This exploratory, non-probabilistic study analyzed frequency distributions to describe reasons for referral, types of evaluations performed, and developmental profiles observed. Preliminary findings offer context for the neuropsychological and psychological development of this gropu, underscoring the value of hospital-based assessments in identifying atypical developmental trajectories and supporting timely responses.