ICD-10-CM 2027
ICD-10 code for acute schizophrenia
From the official ICD-10-CM alphabetic index entry “Schizophrenia, schizophrenic › acute (brief) (undifferentiated)”. Page updated September 29, 2026.
About coding acute schizophrenia
The ICD-10-CM code for acute schizophrenia is F23 (Brief psychotic disorder).
The conditions in its Excludes2 note aren't part of F23, but may be coded alongside it if the patient has both: mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 885 (Psychoses, relative weight 1.3901), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about acute schizophrenia ICD-10 codes
What is the ICD-10 code for acute schizophrenia?
- F23 — Brief psychotic disorder.
Is F23 billable?
- Yes. F23 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F23 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F23 as a principal diagnosis.
Is F23 a CC or MCC?
- F23 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.