ICD-10-CM 2027
ICD-10 code for schizophrenia
Confirmed by the official ICD-10-CM index entry “schizophrenia, schizophrenic”. Page updated September 29, 2026.
About coding schizophrenia
The ICD-10-CM code for schizophrenia is F20.9 (Schizophrenia, unspecified). The official index lists 7 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on F20.9.
Within F20, choose F20.9 (unspecified) only when documentation doesn't support a more specific option: paranoid schizophrenia (F20.0), Disorganized schizophrenia (F20.1), Catatonic schizophrenia (F20.2), Undifferentiated schizophrenia (F20.3), residual schizophrenia (F20.5) and other schizophrenia (F20.8).
Use an additional code, if applicable, to identify: other specified cognitive deficit (R41.84-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Related Schizophrenia codes
Common questions about schizophrenia ICD-10 codes
What is the ICD-10 code for schizophrenia?
- F20.9 — Schizophrenia, unspecified. More specific codes apply when the documentation supports them: F20.0, F20.1, F20.2, F20.3 and others below.
What is the ICD-10 code for paranoid schizophrenia?
- F20.0 — Paranoid schizophrenia.
What is the ICD-10 code for disorganized schizophrenia?
- F20.1 — Disorganized schizophrenia.
What is the ICD-10 code for catatonic schizophrenia?
- F20.2 — Catatonic schizophrenia.
What is the ICD-10 code for undifferentiated schizophrenia?
- F20.3 — Undifferentiated schizophrenia.
What is the ICD-10 code for residual schizophrenia?
- F20.5 — Residual schizophrenia.
What is the ICD-10 code for schizophreniform disorder?
- F20.81 — Schizophreniform disorder.
Is F20.9 billable?
- Yes. F20.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F20.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F20.9 as a principal diagnosis.
Is F20.9 a CC or MCC?
- No. F20.9 is neither a CC nor an MCC under MS-DRG v44.0.