ICD-10-CM category
F28: Other psychotic disorder not due to a substance or known physiological condition
F28 is “Other psychotic disorder not due to a substance or known physiological condition”. It has no subcodes in this category.
Frequently asked questions
What is ICD-10-CM code F28?
F28 is the ICD-10-CM code for Other psychotic disorder not due to a substance or known physiological condition.
Is F28 billable?
Yes — F28 is a valid, billable ICD-10-CM code (it has no further subdivisions).
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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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