What is the ICD-10 code for Schizophrenia?

The ICD-10-CM code for Schizophrenia is F20 (fiscal year 2026). F20 is a non-billable category code — a more specific code such as F20.0 is required for claims.

What does ICD-10 code F20 mean?

F20 is the ICD-10-CM diagnosis code for Schizophrenia. Schizophrenia

Is F20 a billable ICD-10 code?

No, F20 is not a billable code. You may need to select a more specific code from this category.

What chapter is F20 in?

F20 is classified under Chapter 5: Mental, Behavioral and Neurodevelopmental disorders (F01-F99), Section F20-F29: Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29).

What are the includes and excludes for F20?

Excludes1 (not coded here): brief psychotic disorder (F23); cyclic schizophrenia (F25.0); mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3). Excludes2 (not included here): schizophrenic reaction in:; alcoholism (F10.15-, F10.25-, F10.95-); brain disease (F06.2).

What more specific codes exist under F20?

More specific codes under F20 include: F20.0, F20.1, F20.2, F20.3, F20.5. Select the most specific code that matches the clinical documentation.

F20 Schizophrenia

⚠ Non-Billable ICD-10-CM 2026

Open F20 in Web App →

The ICD-10-CM code for Schizophrenia is F20 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Chapter: 5: Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
Section: F20-F29: Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29)
Category F20: 10 codes (8 billable)
FY2026 Status: Stable since FY2024

Excludes1

Not coded here. These conditions should NOT be coded together with F20.

brief psychotic disorder (F23)
cyclic schizophrenia (F25.0)
mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3)
schizoaffective disorder (F25.-)
schizophrenic reaction NOS (F23)

Excludes2

Not included here. These conditions are coded elsewhere but may be coded together if applicable.

schizophrenic reaction in:
alcoholism (F10.15-, F10.25-, F10.95-)
brain disease (F06.2)
epilepsy (F06.2)
psychoactive drug use (F11-F19 with .15. .25, .95)
schizotypal disorder (F21)

Use Additional Code

code, if applicable, to identify:
other specified cognitive deficit (R41.84-)

Official Coding Guidelines

Pain disorders related to psychological factors (TOC entry)

a. Pain disorders related to psychological factors ..................................................................... 43

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.5.a

Psychoactive substance use disorders (TOC entry)

b. Mental and behavioral disorders due to psychoactive substance use ................................... 43

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.5.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

F20 Schizophrenia

Classification

Official Coding Guidelines

References

Related Codes

More Specific Codes

Related Codes in F20

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