Developmental [motor] coordination disorder (6A04)

1. Significant delay in developing motor skills and impairment in executing motor skills.

   • • ICD-11: "Significant delay in the acquisition of gross or fine motor skills and impairment in the execution of coordinated motor skills manifesting as clumsiness, slowness, or inaccuracy of motor performance."
     • DSM-5: "The acquisition and execution of coordinated motor skills is substantially below that expected given the individual’s chronological age and opportunity for skill learning and use."
2. Motor delay and impairment is not due to age or lack of experience.

   • • ICD-11: "Coordinated motor skills are markedly below that expected on the basis of age."
     • DSM-5: "The acquisition and execution of coordinated motor skills is substantially below that expected given the individual’s chronological age and opportunity for skill learning and use."
3. Symptoms begin in the early developmental period (estimated before age 8).

   • • ICD-11: Onset of coordinated motor skill difficulties occurs during the developmental period and is typically apparent from early childhood.
     • DSM-5: Onset of symptoms is in the early developmental period.
4. Symptoms cause impairment.

   • • ICD-11: "Coordinated motor skills difficulties cause significant and persistent limitations in activities of daily living, school work, vocation and leisure activities, or other important areas of functioning."
5. Symptoms are not better explained by another condition.

   • • ICD-11: "Difficulties with coordinated motor skills are not are not better accounted for by a Disease of the Nervous System, Disease of the Musculoskeletal System or Connective Tissue, sensory impairment, or a Disorder of Intellectual Development."
     • DSM-5: "The motor skills deficits are not better explained by intellectual disability (intellectual developmental disorder) or visual impairment and are not attributable to a neurologic condition affecting movement (e.g., cerebral palsy, muscular dystrophy, degenerative disorder)."