2011 ICD-9-CM Diagnosis Code 319
Unspecified mental retardation
- subnormal intellectual functioning which originates during the developmental period; multiple potential etiologies, including genetic defects and perinatal insults; intelligence quotient (IQ) scores are commonly used to determine whether an individual is mentally retarded; IQ scores between 70 and 79 are in the borderline mentally retarded range and scores below 67 are in the retarded range.
- Impaired intellectual (IQ below 70) and adaptive functioning manifested during the developmental period. Use a more specific term if possible. Use for both the concept of the disorder itself and for populations of mentally retarded persons.
- Short description: Mental retardation NOS.
- ICD-9-CM 319 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
- You are viewing the 2011 version of ICD-9-CM 319.
- More recent version(s) of ICD-9-CM 319: 2012 2013.
319 Alternative Terminology
Applies To
Convert 319 to ICD-10-CM 
ICD-9-CM Volume 2 Index entries containing back-references to 319:
Meynert's (nonalcoholic) 
alcoholic 
