Specific code 2012 ICD-9-CM Diagnosis Code 318.0
Moderate intellectual disabilities
  • Short description: Mod intellect disability.
  • ICD-9-CM 318.0 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 318.0 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2012 version of ICD-9-CM 318.0.
  • More recent version(s) of ICD-9-CM 318.0: 2013 2014.
Disease Synonyms
  • Intellectual disability, moderate
  • Moderate mental retardation (I.Q. 35-49)
Applies To
  • IQ 35-49
  • Moderate mental subnormality
Convert to ICD-10-CM: 318.0 converts directly to:
  • 2014 ICD-10-CM F71 Moderate intellectual disabilities
ICD-9-CM Volume 2 Index entries containing back-references to 318.0:
  • Disability, disabilities
    • intellectual 319
      • borderline V62.89
      • mild, IQ 50-70 317
      • moderate, IQ 35-49 318.0
      • profound, IQ under 20 318.2
      • severe, IQ 20-34 318.1
  • Imbecile, imbecility 318.0
    • specified IQ - see IQ
    • unspecified IQ 318.0
  • IQ
    • 35-49 318.0
  • Mental - see also condition
    • subnormality (see also Disability, intellectual) 319
  • Subnormal, subnormality
    • mental (see also Disabililty, intellectual) 319
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 318.0 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.