We present the case of two children of 7 and 8years old, who have been referred from teachers and school counsellors for evaluation by health professionals, on suspicion of presenting a clinical feature of ADHD. Although this diagnosis has been repeatedly dismissed, the educational institution continues tackling the behavioural problems under this label, making constant petitions of assessment to the health system. The need for generating communication channels between the institutions in charge of the management of children with behavioural problems is discussed with the aim of avoiding cost overruns in the health system and reducing the psychosocial impact of the stigma associated with the diagnosis of ADHD.