ICD-11 code : 6A00;
Preferred Label : Disorders of intellectual development;
ICD-11 definition : Disorders of intellectual development are a group of etiologically diverse conditions
originating during the developmental period characterized by significantly below average
intellectual functioning and adaptive behavior that are approximately two or more
standard deviations below the mean (approximately less than the 2.3rd percentile),
based on appropriately normed, individually administered standardized tests. Where
appropriately normed and standardized tests are not available, diagnosis of disorders
of intellectual development requires greater reliance on clinical judgment based on
appropriate assessment of comparable behavioural indicators.;
ICD-11 synonym : intellectual disabilities; Intellectual disability; Mental retardation; Intellectual developmental disorder;
ICD-11 inclusion : Global developmental delay; Early developmental impairment; developmental delay;
ICD-11 "unspecified" category code : 6A00.Z;
Origin ID : 605267007;
Automatic exact mappings (from CISMeF team)
Validated automatic mappings to BTNT
Disorders of intellectual development are a group of etiologically diverse conditions
originating during the developmental period characterized by significantly below average
intellectual functioning and adaptive behavior that are approximately two or more
standard deviations below the mean (approximately less than the 2.3rd percentile),
based on appropriately normed, individually administered standardized tests. Where
appropriately normed and standardized tests are not available, diagnosis of disorders
of intellectual development requires greater reliance on clinical judgment based on
appropriate assessment of comparable behavioural indicators.