2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Mental Disorders 290-319 > Mental Retardation 317-319 > 2006 ICD-9-CM Diagnosis 317 Mild mental retardation View the most recent version of ICD-9-CM 317 317 is a specific code that can be used to specify a diagnosis 317 contains 8 index entries Alternate Terminology High-grade defect IQ 50-70 Mild mental subnormality  Index entries containing 317: Defect, defective 759.9 high grade 317 Feeble-minded 317 IQ 50-70 317 Mental - see also condition subnormality (see also Retardation, mental) 319 mild 317 Moron 317 Retardation mental 319 mild, IQ 50-70 317 Subnormal, subnormality mental (see also Retardation, mental) 319 mild 317 Weak, weakness (generalized) 780.79 mind 317