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Mental Retardation (MR)

  • Mild mental retardation 317
    • IQ 50-70
  • Moderate mental retardation 318.0
    • IQ 35-49
  • Severe mental retardation 318.1
    • IQ 20-34
  • Profound mental retardation 318.2
    • IQ under 20
  • Unspecified mental retardation 319
    • including mental deficiency NOS