ObjectivesMedical records are critical to patient care, but often contain incomplete information. In UK hospitals, record-keeping is traditionally undertaken by junior doctors, who are increasingly completing early-career placements in psychiatry, but negative attitudes towards psychiatry may affect their performance. Little is known about the accuracy of medical records in psychiatry in general. This study aimed to evaluate the accuracy of Electronic Medical Records (EMRs) pertinent to clinical decision-making (“rationale”) for prescribing completed by junior doctors during a psychiatry placement, focusing on the differences between psychotropic vs. non-psychotropic drugs and the temporal association during their placement.ResultsEMRs of 276 participants yielding 780 ward round entries were analysed, 100% of which were completed by Foundation Year or General Practice specialty training junior doctors rather than more senior clinicians. Compared with non-psychotropic drugs, documentation of prescribing rationale for psychotropic drugs was less likely (OR = 0.24, 95% CI 0.16–0.36, p < 0.001). The rate of rationale documentation significantly declined over time especially for psychotropic drugs (p < 0.001). Prescribing documentation of non-psychotropic drugs for people with mental illness is paradoxically more accurate than that of psychotropic drugs. Early-career junior doctors are therefore increasingly shaping EMRs of people receiving psychiatric care.