Basics of Schizophrenia ICD 10 CM

Schizophrenia is a serious mental disorder in which people interpret reality abnormally. Schizophrenia may result in some combination of hallucinations, delusions, and extremely disordered thinking and behavior that impairs daily functioning, and can be disabling. F20.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

F20.9 – Schizophrenia, unspecified

Related Synonyms of Schizophrenia ICD 10 CM

• Chronic schizophrenia
• Schizophrenia
• Schizophrenia in remission
• Schizophrenia, chronic
• Schizophrenia, subchronic
• Schizophrenia, subchronic with acute episode
• Subchronic schizophrenia
• Subchronic schizophrenia with acute exacerbations

Schizophrenia ICD 10 CM coding 

ICD-10-CM codes for schizophrenia are found in code category F20.- (schizophrenia), which is divided into the following subcategories:  

• F20.0, paranoid schizophrenia
• F20.1, disorganized schizophrenia
• F20.2, catatonic schizophrenia
• F20.3, undifferentiated schizophrenia
• F20.5, residual schizophrenia
• F20.8, other schizophrenia
• F20.9, schizophrenia, unspecified

Codes in the category F20.- have an excludes 1 note for the following codes: 

• F23, brief psychotic disorder
• F25.0, cyclic schizophrenia
• mood (affective) disorders with psychotic symptoms, (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3)
• F25.-, schizoaffective disorder
• F23, schizophrenic reaction not otherwise specified

The codes in category F20.- also have an excludes note for the following codes: 

• F10.15-, F10.25-, F10.95-, alcoholism
• F06.2, brain disease 
• F06.2, epilepsy
• F11.- through F19.- with .15, .25, .95, psychoactive drug use
• F21, schizotypal disorder

Excludes1 notes indicate which codes should never be reported together, while excludes2 notes show which codes can be reported together, given the proper specificity and documentation. 

Basic ICD-10 Information

World Health Organization (WHO) authorized the publication of the International Classification of DiseasesExternal 10th Revision (ICD-10), which was implemented for mortality coding and classification from death certificates in the U.S. in 1999. The U.S. developed a Clinical Modification (ICD-10-CM) for medical diagnoses based on WHO’s ICD-10.  This medical classification list is generated by the World Health Organization (WHO), and is used to help healthcare providers identify and code health conditions.

ICD-10 is required for use by physicians and healthcare providers under the Health Insurance Portability & Accountability Act (HIPAA) and will replace all ICD-9 code sets. There are nearly 5 times as many diagnosis codes in ICD-10-CM than in ICD-9-CM.ICD-10 has alphanumeric categories instead of numeric ones.

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