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Intellectual functioning disability

MedGen UID:
Concept ID:
Mental or Behavioral Dysfunction
Synonyms: Intellectual disability; Mental retardation; Mental Retardation Syndromes, Idiopathic
SNOMED CT: Intellectual disability (228156007); Intellectual limitation (228156007); MR - Mental retardation (91138005); Mental retardation (91138005); Intellectual functioning disability (228156007)


Subnormal intellectual functioning which originates during the developmental period. Intellectual disability, previously referred to as mental retardation, has been defined as an IQ score below 70. [from HPO]

Professional guidelines


Michelson DJ, Shevell MI, Sherr EH, Moeschler JB, Gropman AL, Ashwal S
Neurology 2011 Oct 25;77(17):1629-35. Epub 2011 Sep 28 doi: 10.1212/WNL.0b013e3182345896. PMID: 21956720

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