Stability of diagnostic coding of psychiatric outpatient visits across the transition from the second to the third version of the Danish National Patient Registry.

"all analyses were carried out using r ( www r-project org ) and the code used for the analyses is available at: https://github com/aarhus-psychiatry-research/diagnostic-stability-lpr2-lpr3/ 2 3 this study was carried out to ensure the validity/stability of the data used for studies based on the psycop cohort."

"all analyses were carried out using r ( www r-project org ) and the code used for the analyses is available at: https://github com/aarhus-psychiatry-research/diagnostic-stability-lpr2-lpr3/ 2 3 this study was carried out to ensure the validity/stability of the data used for studies based on the psycop cohort."

"CONFLICT OF INTEREST Andreas Aalkjær Danielsen has received a speaker honorarium from Otsuka Pharmaceutical. Søren Dinesen Østergaard received the 2020 Lundbeck Foundation Young Investigator Prize. Furthermore, Søren Dinesen Østergaard owns units of mutual funds with stock tickers DKIGI and WEKAFKI, as well as units of exchange‐traded funds with stock ticker TRET, IQQH, QDV5, and EUNL."

"Funding information Kræftens Bekæmpelse, Grant/Award Number: R283‐A16461; Lundbeckfonden; Region Midtjylland, Grant/Award Number: 1‐36‐72‐4‐20; Independent Research Fund Denmark, Grant/Award Number: 7016‐00048B; Novo Nordisk Foundation, Grant/Award Number: NNF20SA0062874; Danish Agency for Digitisation Investment Fund for New Technologies, Grant/Award Number: 2020‐6720"