ICD-9 Diagnosis Code 318.1

Sev intellect disability

Diagnosis Code 318.1

ICD-9: 318.1
Short Description: Sev intellect disability
Long Description: Severe intellectual disabilities
This is the 2014 version of the ICD-9-CM diagnosis code 318.1

Code Classification
  • Mental disorders (290–319)
    • Intellectual Disabilities (317-319)
      • 318 Other specified intellectual disabilities

Information for Medical Professionals

Convert to ICD-10 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • F72 - Severe intellectual disabilities

Index of Diseases and Injuries
References found for the code 318.1 in the Index of Diseases and Injuries:

Information for Patients

Developmental Disabilities

Developmental disabilities are severe, long-term problems. They may be physical, such as blindness. They may affect mental ability, such as learning disorders. Or the problem can be both physical and mental, such as Down syndrome. The problems are usually life-long, and can affect everyday living.

There are many causes of developmental disabilities, including

  • Genetic or chromosome abnormalities. These cause conditions such as Down syndrome and Rett syndrome.
  • Prenatal exposure to substances. Drinking alcohol when pregnant can cause fetal alcohol spectrum disorders.
  • Certain viral infections during pregnancy
  • Preterm birth

Often there is no cure, but treatment can help the symptoms. Treatments include physical, speech, and occupational therapy. Special education classes and psychological counseling can also help.

NIH: National Institute of Child Health and Human Development

  • Angelman syndrome
  • Developmental coordination disorder
  • Developmental Screening (Centers for Disease Control and Prevention)
  • Intellectual disability

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