2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Mental Disorders 290-319 > Organic Psychotic Conditions 290-294 > Dementias 290.* > 2008 ICD-9-CM Diagnosis 290.4 Vascular dementia  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 290.4 can be accessed here. An imprecise term referring to dementia associated with CEREBROVASCULAR DISORDERS, including CEREBRAL INFARCTION (single or multiple), and conditions associated with chronic BRAIN ISCHEMIA. Diffuse, cortical, and subcortical subtypes have been described. (From Gerontol Geriatr 1998 Feb;31(1):36-44) Loss of higher cortical functions with retained awareness due to multiple cortical or subcortical CEREBRAL INFARCTION. Memory, judgment, attention span, and impulse control are often impaired, and may be accompanied by PSEUDOBULBAR PALSY; HEMIPARESIS; reflex abnormalities, and other signs of localized neurologic dysfunction. (From Adams et al., Principles of Neurology, 6th ed, p1060) 290.4 is a non-specific code that cannot be used to specify a diagnosis View the ICD-9-CM Volume 1 290.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. 290.4 also known as: Multi-infarct dementia or psychosis Use additional code to identify cerebral atherosclerosis (437.0) 290.4 excludes: suspected cases with no clear evidence of arteriosclerosis (290.9)