Intellectual Disabilities ICD 9 Codes (317-319)

INTELLECTUAL DISABILITIES (ICD 9 CODES: 317-319)

Use additional code(s) to identify any associated psychiatric or physical condition(s)

317       Mild intellectual disabilities

High-grade defect

IQ 50-70

Mild mental subnormality

318       Other specified intellectual disabilities

318.0    Moderate intellectual disabilities

IQ 35-49

Moderate mental subnormality

318.1    Severe intellectual disabilities

IQ 20-34

Severe mental subnormality

318.2    Profound intellectual disabilities

IQ under 20

Profound mental subnormality

319       Unspecified intellectual disabilities

Mental deficiency NOS

Mental subnormality NOS