F28 – Other psychotic disorder not due to a substance or known physiological condition
ICD-10-CM 2027 diagnosis code · Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders
ICD-10-CM code
F28
- Code
F28(claims format:F28)- Description
- Other psychotic disorder not due to a substance or known physiological condition
- Short description
- Oth psych disorder not due to a sub or known physiol cond
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 5. Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
- Block
- F20-F29 Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders
Notes for F28
Applicable to:
- Chronic hallucinatory psychosis
- Other specified schizophrenia spectrum and other psychotic disorder
Index terms for F28
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Hallucinosis
- Insanity, insane, confusional
- Psychosis, psychotic, involutional
- Menopause, menopausal, psychosis NEC
- Psychosis, psychotic, hallucinatory, chronic
- Psychosis, psychotic, nonorganic, specified NEC
- Disorder, schizophrenia spectrum and other psychotic disorder, specified NEC
- Schizophrenia, schizophrenic, spectrum and other psychotic disorder, specified NEC
Frequently asked questions
What is ICD-10 code F28?
F28 is the ICD-10-CM code for other psychotic disorder not due to a substance or known physiological condition, in the block F20-F29 (Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders).
Is F28 a billable code?
Yes. F28 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.