F20.3
BillableUndifferentiated schizophrenia
F20.3 is the ICD-10-CM code for Undifferentiated schizophrenia. It is a billable, specific code valid for reimbursement.
F01-F99 Mental, Behavioral and Neurodevelopmental disorders
Includes
- •Atypical schizophrenia
Excludes1 — not coded here
- •acute schizophrenia-like psychotic disorder (F23)
Excludes2 — not included here
- •post-schizophrenic depression (F32.89)
Frequently asked questions
- What is ICD-10 code F20.3?
- F20.3 is the ICD-10-CM code for "Undifferentiated schizophrenia". It falls under F01-F99 Mental, Behavioral and Neurodevelopmental disorders.
- Is F20.3 a billable code?
- Yes — F20.3 is a billable, specific ICD-10-CM code valid for reimbursement.
- What is excluded from F20.3?
- Excludes1 (not coded here): acute schizophrenia-like psychotic disorder (F23).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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