Skip to main content
Compare/F20 vs F21

F20 vs F21

F20 (Schizophrenia) compared with F21 (Schizotypal disorder), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. F20 carries an Excludes2 note covering F21: “schizotypal disorder (F21)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

F20SchizophreniaF21Schizotypal disorder
Billing statusNon-billable header

Report instead: F20.0, F20.1, F20.2, F20.3, F20.5

Billable
ClassificationF01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99)F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99)
DefinitionSchizophrenia is a non-billable ICD-10-CM category code (F20).Schizotypal disorder is a billable ICD-10-CM diagnosis code (F21).
Includes—
Borderline schizophrenia
Latent schizophrenia
Latent schizophrenic reaction
Prepsychotic schizophrenia
Use additional code
code, if applicable, to identify:
other specified cognitive deficit (R41.84-)
—
Edit this comparisonCheck a whole claim

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources