Developmental disorders are a complex concept relevant to the multidisciplinary approach of children with special educational needs. The person with a developmental disorder is affected both by integrity -- the complete somatic and psychological structure and functionality -- and the ability to be a psycho-biological wholeness, the two aspects being in close interdependence. Developmental disorders are inherent in children with disabilities, but can also occur under the conditions of a normal intellect, for example, in the form of learning disabilities. In both situations, developmental disorders lead to increased learning and adapting to school requirements difficulties, imposing the implementation of a system of services appropriate to the individual needs of children with developmental disabilities that satisfactorily support the global integration effort.