Diagnostic code: 317, 318.x, 319
Information below is from DSM-PC. Refer to DSM-PC and DSM-IV/DSM-IV-TR for full psychiatric criteria and further description.
Mental Retardation presents differently in infancy, early childhood, middle childhood, and adolescence. The following are examples of how MR may be manifested across developmental periods.
Description of Symptoms
- Significant limitations in emotional expressiveness, language, purposeful behavior, gross and fine motor skills, and apparent cognitive abilities
- Mild and moderate deficits may go undetected
- Significant delays in communicating, walking, self feeding, toilet learning, and social interaction
- Intellectual function is significantly below average
Middle Childhood and Adolescence
- Developmental delays are usually clear by this age
- Evaluation can identify strengths and weaknesses in cognitive and adaptive abilities