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Term:Intellectual disability
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Accession:HP:0001249 term browser browse the term
Definition: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.
Comment:This term should be used for children at least five years old. For younger children, consider the term Global developmental delay (HP:0001263).
Synonyms:exact_synonym: Mental deficiency;   Mental retardation;   Mental retardation, nonspecific;   Nonprogressive intellectual disability;   Nonprogressive mental retardation
 related_synonym: Dull intelligence;   Low intelligence;   Poor school performance
 alt_id: HP:0000730;   HP:0001267;   HP:0001286;   HP:0002122;   HP:0002192;   HP:0002316;   HP:0002382;   HP:0002386;   HP:0002402;   HP:0002458;   HP:0002482;   HP:0002499;   HP:0002543;   HP:0003767;   HP:0006833;   HP:0006877;   HP:0007154;   HP:0007176;   HP:0007180
 xref: MSH:D008607;   SNOMEDCT_US:228156007;   SNOMEDCT_US:247578003;   SNOMEDCT_US:91138005;   UMLS:C0025362;   UMLS:C0423903;   UMLS:C0917816;   UMLS:C1843367;   UMLS:C3714756;   UMLS:C4020876

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the nervous system 0
        Abnormality of nervous system physiology 0
          Neurodevelopmental abnormality 0
            Intellectual disability 0
              Intellectual disability, borderline 0
              Intellectual disability, mild 0
              Intellectual disability, moderate 0
              Intellectual disability, profound 0
              Intellectual disability, progressive 0
              Intellectual disability, severe 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.