BackgroundThe American Academy of Pediatrics recommends all pediatricians to be ready to implement trauma-informed care, including the mitigation of impacts of Adverse Childhood Experiences (ACEs) through screening and identification of at-risk population. Reliable survey tools and knowledge of the consequences of ACEs are needed. ObjectiveThis study examines the healthcare utilization and diagnoses captured in insurance claims in association with the number of ACEs recorded by the Family Map Inventories (FMI). The FMI offers a comprehensive family assessment, which includes child ACEs (FMI-ACEs) using prospective, proxy risk indicators. Participants and settingLow-income families (N = 1647) with children aged three to five years who completed the FMI were linked to their insurance records. MethodsMultivariable logistic and generalized linear regression models were fitted to explore the association between the number of ACEs (FMI-ACEs scores) and healthcare utilization and health outcomes. ResultsChildren were exposed at rates of 32.4 % to zero, 31.7 % to one, 19.7 % to two, and 16.3 % to three or more ACEs. The FMI-ACEs scores were associated with greater use of non-preventive outpatient visits, filled prescriptions, and overall use of healthcare. Incidences of adjustment disorders were 4 times and attention-deficit conducts were 2 times higher among children with the highest FMI-ACEs scores than those with zero FMI-ACEs. ConclusionsThis study marks the first effort to conduct insurance claims data review to ascertain association between a survey measure of ACEs and health utilization and diagnosed conditions. The association of ACEs risk screening and healthcare utilization and diagnoses was observed.