F20.3Undifferentiated schizophrenia
ICD-10-CM billable/specific code — part of Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29)
Coding Notes
Excludes1 (never code both together)
- acute schizophrenia-like psychotic disorder (F23)
Excludes2 (not part of this condition — may code both)
- post-schizophrenic depression (F32.89)