F20 – Schizophrenia

ICD-10-CM 2027 diagnosis code · Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders

Non-billable header

ICD-10-CM code F20

Code: F20 (claims format: F20)
Description: Schizophrenia
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 5. Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
Block: F20-F29 Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders

Billable codes under F20

F20 is a header code and cannot be used on claims. Choose the most specific code:

F20.0 – Paranoid schizophreniaBillable
F20.1 – Disorganized schizophreniaBillable
F20.2 – Catatonic schizophreniaBillable
F20.3 – Undifferentiated schizophreniaBillable
F20.5 – Residual schizophreniaBillable
F20.8 – Other schizophreniaHeader (more codes below)
F20.9 – Schizophrenia, unspecifiedBillable

Notes 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)
schizoaffective disorder (F25.-)
schizophrenic reaction NOS (F23)

Excludes2 (not included here):

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-)

Frequently asked questions

What is ICD-10 code F20?

F20 is the ICD-10-CM code for schizophrenia, in the block F20-F29 (Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders).

Is F20 a billable code?

No. F20 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.