ICD-11 classes
06 Mental, behavioural or neurodevelopmental disorders
Neurodevelopmental disorders
6A00 — Disorders of intellectual development
6A00.1 — Disorder of intellectual development, moderate

ICD-11 6A00.1 — Disorder of intellectual development, moderate

A moderate disorder of intellectual development is a condition originating during the developmental period characterised by significantly below average intellectual functioning and adaptive behaviour that are approximately three to four standard deviations below the mean (approximately 0.003 – 0.1 percentile), based on appropriately normed, individually administered standardized tests or by comparable behavioural indicators when standardized testing is unavailable. Language and capacity for acquisition of academic skills of persons affected by a moderate disorder of intellectual development vary but are generally limited to basic skills. Some may master basic self-care, domestic, and practical activities. Most affected persons require considerable and consistent support in order to achieve independent living and employment as adults.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.