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Table 2 Concordancea between ICD-10 diagnoses in the Norwegian Patient Registry (NPR) and DSM-IV diagnosis in the Thematically Organized Psychosis (TOP) study

From: The quality of severe mental disorder diagnoses in a national health registry as compared to research diagnoses based on structured interview

TOP group   SCZ (n = 537) DEL (n = 48) SCA (n = 118) BIP (n = 408)
NPR diagnoses ICD-10-codes n % n % n % n %
Schizophrenia F20 452 84.2 9 18.8 40 33.9 10 2.5
Delusional disorder F22 54 10.1 33 68.8 9 7.6 11 2.7
Schizoaffective disorder F25 38 7.1 0 0 90 76.3 20 4.9
Bipolar disorder F30–F31 25 4.7 5 10.4 24 20.3 320 78.4
  1. Data obtained from NPR for the period 2008–2013 on patients recruited to TOP between 18.10.2002 and 01.09.2014
  2. Abbreviations: ICD-10, International Classification of Diseases, 10th revision, DSM-IV Diagnostic and Statistical Manual of Mental Disorders, 4th edition, SCZ schizophrenia, DEL delusional disorder, SCA schizoaffective disorder, BIP bipolar disorder (type I, type II, and bipolar disorder not otherwise specified)
  3. a Percentage of patients within each of the four TOP groups that were registered with each of the four equivalent ICD-10 categories at least once in the NPR during 2008–2013