2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Mental Disorders 290-319 > Other Psychoses 295-299 > Schizophrenic Disorders 295.* > 2008 ICD-9-CM Diagnosis 295.90 Unspecified type schizophrenia unspecified state  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 Therefore, this code may be out of date.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 295.90 can be accessed here. A severe emotional disorder of psychotic depth characteristically marked by a retreat from reality with delusion formation, hallucinations, emotional disharmony, and regressive behavior. 295.90 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 295.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog.