Stability of diagnostic coding of psychiatric outpatient visits across the transition from the second to the third version of the Danish National Patient Registry.
Martin BernstorffLasse HansenErik PerfalkAndreas Aalkjaer DanielsenSøren Dinesen ØstergaardPublished in: Acta psychiatrica Scandinavica (2022)
The change from the DNPR2 to the DNPR3 is unlikely to pose a substantial threat to the validity of most psychiatric research at the diagnostic subchapter level.