Raissadati A, Haukka J, Pätilä T, et al. - Given that in patients who have undergone congenital heart surgery (CHS), postoperative morbidity represents an increasingly crucial outcome measure, so researchers assessed late postoperative morbidity following CHS based on patients’ government‐issued medical special reimbursement rights. Data on all medical special reimbursement rights granted between 1966 and 2012 were afforded by the Social Insurance Institution of Finland. The most frequently occurring late morbidity in patients was cardiovascular disease (28%), followed by obstructive pulmonary disease (9%), neurologic disease (3%), and psychiatric disease (2%). The most common cardiovascular morbidities included heart failure and arrhythmia. Patients with coarctation of the aorta often developed hypertension. In those with simple defects, especially ventricular septal defects, a more common prevalence of psychiatric disease was noted. Overall, findings revealed that experiencing chronic cardiac and noncardiac sequelae post-CHS was common, irrespective of the severity of the defect, emphasizing the significance of long‐term follow‐up of all patients post-CHS.