Conceptions of mental illness in children are bound by cultural and social
conventions of what constitutes healthy and unhealthy development. To under
stand current conceptualizations of disorders in children, we review the hi
story of these conceptualizations from three intertwined perspectives: a so
ciopolitical history of American children and families, the history of the
mental health fields and scientific disciplines involved in diagnosing chil
dren, and the evolution of children's role in the Diagnostic and Statistica
l Manual of Mental Disorders. We review where the field has been in its con
ception of childhood mental illness throughout the past century, where we b
elieve it is now, and raise questions about the direction in which child di
agnosis may be headed as we enter the new millennium. we conclude with soci
al policy recommendations based on theory and research regarding mental dis
orders in children.