Eating disorders (EDs) in children and adolescents can go unrecognized by the unsuspecting clinician or parent, magnifying this risk further. This chapter reviews DSM‐IV versus DSM‐5 criteria for diagnosing EDs in children and adolescents, including newer categories such as Avoidant Restrictive Food Intake Disorder or Other Specified Feeding or Eating Disorder (OSFED), which includes “atypical Anorexia Nervosa”, and “Bulimia Nervosa (of low frequency and/or limited duration)”. Strategies for recognizing EDs in children and adolescents are highlighted. The changes in the fifth edition of the DSM were designed to produce an evidence‐based document that could help clinicians consistently and accurately diagnose mental disorders, including those related to disordered eating. Purging disorder (PD) in DSM‐5 (2013) is the diagnosis for those who predominantly purge without binges or restricting. A key principle of ED recognition in children and adolescents is to trust parental and other caregivers’ instincts.