F20: Schizophrenia
Codes under F20 (Schizophrenia). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| F20.0 | Paranoid schizophrenia | ✓ |
| F20.0 | Paranoid schizophrenia | ✓ |
| F20.1 | Disorganized schizophrenia | ✓ |
| F20.1 | Disorganized schizophrenia | ✓ |
| F20.2 | Catatonic schizophrenia | ✓ |
| F20.2 | Catatonic schizophrenia | ✓ |
| F20.3 | Undifferentiated schizophrenia | ✓ |
| F20.3 | Undifferentiated schizophrenia | ✓ |
| F20.5 | Residual schizophrenia | ✓ |
| F20.5 | Residual schizophrenia | ✓ |
| F20.8 | Other schizophrenia | — |
| F20.8 | Other schizophrenia | — |
| F20.9 | Schizophrenia, unspecified | ✓ |
| F20.9 | Schizophrenia, unspecified | ✓ |
| F20.81 | Schizophreniform disorder | ✓ |
| F20.81 | Schizophreniform disorder | ✓ |
| F20.89 | Other schizophrenia | ✓ |
| F20.89 | Other schizophrenia | ✓ |
Frequently asked questions
What is ICD-10-CM code F20?
F20 is an ICD-10-CM category covering Schizophrenia. It contains 18 more specific diagnosis codes, 16 of which are billable.
Is F20 a billable code?
No — F20 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example F20.0 — Paranoid schizophrenia). 16 of the 18 codes under F20 are billable.
What codes fall under F20?
F20 includes F20.0, F20.0, F20.1, F20.1, F20.2, plus 13 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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