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Social Psychiatry and Psychiatric Epidemiology
Published in: Social Psychiatry and Psychiatric Epidemiology 9/2016

Open Access 01-09-2016 | Original Paper

Variability in clinical diagnoses during the ICD-8 and ICD-10 era

Authors: Julie Nordgaard, Kasper Jessen, Ditte Sæbye, Josef Parnas

Published in: Social Psychiatry and Psychiatric Epidemiology | Issue 9/2016

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Abstract

Aims

To explore whether the diagnostic homogeneity in a daily, routine clinical activity changed visibly over two historical periods (the ICD-8 and the ICD-10 era) across and within five psychiatric in-patient clinics.

Methods

In this register study, we analyzed the discharge diagnoses from five university-affiliated departments of psychiatry in Denmark in two time periods: 1980–1985 (ICD-8) and 2001–2010 (ICD-10).

Results

The synchronic inter-departmental diagnostic differences did not decrease in the ICD-10 era compared with ICD-8 era. Nor did the diachronic stability within each department become more homogeneous.

Conclusion

The diagnostic variability reflected by the diagnostic differences between the departments and by the diagnostic homogeneity within each department remained similar in the two historical periods with no evidence of an increased homogeneity of diagnostic habits after the introduction of the ICD-10.

Limitations

There is a myriad of variables that affects the diagnostic variability over time that we were not able to control.
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Metadata
Title
Variability in clinical diagnoses during the ICD-8 and ICD-10 era
Authors
Julie Nordgaard
Kasper Jessen
Ditte Sæbye
Josef Parnas
Publication date
01-09-2016
Publisher
Springer Berlin Heidelberg
Published in
Social Psychiatry and Psychiatric Epidemiology / Issue 9/2016
Print ISSN: 0933-7954
Electronic ISSN: 1433-9285
DOI
https://doi.org/10.1007/s00127-016-1265-9

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