MENTAL RETARDATION (317-319)

• Use additional code(s) to identify any associated psychiatric or physical condition(s)
• 317 Mild mental retardation
  • High-grade defect
  • IQ 50-70
  • Mild mental subnormality
• 318 Other specified mental retardation
  • 318.0 Moderate mental retardation
    • IQ 35-49
    • Moderate mental subnormality
  • 318.1 Severe mental retardation
    • IQ 20-34
    • Severe mental subnormality
  • 318.2 Profound mental retardation
    • IQ under 20
    • Profound mental subnormality
• 319 Unspecified mental retardation
  • Mental deficiency NOS
  • Mental subnormality NOS