F20.3
Undifferentiated schizophrenia
Coding guidance (WHO 2019)
Psychotic conditions meeting the general diagnostic criteria for schizophrenia but not conforming to any of the subtypes in F20.0-F20.2, or exhibiting the features of more than one of them without a clear predominance of a particular set of diagnostic characteristics. Atypical schizophrenia Excl.: acute schizophrenia-like psychotic disorder (F23.2) chronic undifferentiated schizophrenia (F20.5) post-schizophrenic depression (F20.4)