Electronic health records (EHRs) can be used to identify children who have been exposed to adverse childhood experiences (ACEs), and to capture the full spectrum of mental health disorders and symptoms in patients under 21, researchers have found. Because EHRs can collect patient data rapidly, aggregating EHRs across institutions can enable rapid identification of pediatric disease cohorts with mental illness and those at risk. The study, conducted throughout a 13‐year period, used a type of her developed by an interdisciplinary team with expertise in informatics and child and adolescent psychiatry. For the study, aggregated, standardizherEHR data for the full spectrum of mental disorders involved comparing patients with and without the disorders (and without ACEs) by age, gender, race/ethnicity, insurance, and chronic physical conditions. In addition, patients with ACEs alone (no disorders or symptoms) were compared with patients who did have disorders and symptoms. The study data set included 7,852,081 patients under 21 years of age. Of this group, 1,552,726 (19.8%), without exposure to ACEs, had mental health disorders or symptoms at some point. Annual prevalence estimates of those with disorders or symptoms (but without ACEs exposure) rose from 10.6% in 2010 to 15.1% in 2023, a 44% relative increase, peaking at 15.4% in 2019, prior to the COVID‐19 pandemic. Those with exposure to ACEs had the largest increase in mental disorders. The categories of mental health problems with the largest increases were those with exposure to ACEs (1.7), anxiety disorders (2.8), eating/feeding disorders (2.1), gender dysphoria/sexual dysfunction (43.6), and intentional self‐harm/suicidality (3.3). Median age of detection was 8.1 years with all standalone symptoms recorded earlier than the corresponding MH disorder categories. [Elia, J., Pajer, K., Prasad, R., et al. (2023, Sep 14). Electronic health records identify timely trends in childhood mental health conditions. Child Adolesc Psychiatry Ment Health, 17(1), 107. http://doi.org/10.1186/s13034‐023‐00650‐7.]