Billable / Specific Code
ICD-10-CM F28 is the diagnosis code for Other psychotic disorder not due to a substance or known physiological condition. This code falls under the section "Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders" within Chapter 5 — Mental, Behavioral and Neurodevelopmental disorders (F01-F99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where F28 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, F28 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
F28 is the ICD-10-CM diagnosis code for "Other psychotic disorder not due to a substance or known physiological condition". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
F28 is located in Section F20-F29 — "Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders" within Chapter 5 of the ICD-10-CM Tabular List.
Use F28 when the patients documented diagnosis matches "Other psychotic disorder not due to a substance or known physiological condition" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Other psychotic disorder not due to a substance or known physiological condition is F28.
Yes, F28 can be used as a primary diagnosis code since it is billable and specific.
F28 is in Chapter 5 of the ICD-10-CM Tabular List.
Yes, F28 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.