| Abstract: | The significant growth in the clinical literature on early childhood psychopathologysince the publication of the Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood: Zero to Three–Revised (DC:0–3R; ZERO TO THREE) in 2005 necessitated substantial revisions to the manual, which resulted in the publication of the DC:0–5: Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood: Zero to Five (ZERO TO THREE) in 2016. In addition to the decision to extend the early childhood diagnoses to include children through age 5 years, significant revisions were made to many diagnoses, and new diagnostic categories were added such as the Relationship Specific Disorder of Infancy/Early Childhood. Other additions, such as guidance for the development of a Cultural Formulation for the young child and his or her family and the inclusion of functional impairment criteria also contribute to making the DC: 0–5a substantially more comprehensive and robust diagnostic framework than its predecessor. |
