ICD-9 Code 295.21

Catatonic type schizophrenia, subchronic

Not Valid for Submission

295.21 is a legacy non-billable code used to specify a medical diagnosis of catatonic type schizophrenia, subchronic. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

ICD-9: 295.21
Short Description:Catatonia-subchronic
Long Description:Catatonic type schizophrenia, subchronic

Convert 295.21 to ICD-10

The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:

  • F20.2 - Catatonic schizophrenia

Code Classification

  • Mental disorders (290–319)
    • Other psychoses (295-299)
      • 295 Schizophrenic psychoses

Information for Medical Professionals

Information for Patients


Schizophrenia

Schizophrenia is a serious brain illness. People who have it may hear voices that aren't there. They may think other people are trying to hurt them. Sometimes they don't make sense when they talk. The disorder makes it hard for them to keep a job or take care of themselves.

Symptoms of schizophrenia usually start between ages 16 and 30. Men often develop symptoms at a younger age than women. People usually do not get schizophrenia after age 45. There are three types of symptoms:

  • Psychotic symptoms distort a person's thinking. These include hallucinations (hearing or seeing things that are not there), delusions (beliefs that are not true), trouble organizing thoughts, and strange movements.
  • "Negative" symptoms make it difficult to show emotions and to function normally. A person may seem depressed and withdrawn.
  • Cognitive symptoms affect the thought process. These include trouble using information, making decisions, and paying attention.

No one is sure what causes schizophrenia. Your genes, environment, and brain chemistry may play a role.

There is no cure. Medicine can help control many of the symptoms. You may need to try different medicines to see which works best. You should stay on your medicine for as long as your doctor recommends. Additional treatments can help you deal with your illness from day to day. These include therapy, family education, rehabilitation, and skills training.

NIH: National Institute of Mental Health


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ICD-9 Footnotes

General Equivalence Map Definitions
The ICD-9 and ICD-10 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.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.