The annual BNF version changes are due to be implemented with January 2026 dispensing data. Planned publication of this data is around mid-March 2026.
The latest published mapping file shows the BNF presentation code as of December 2025 data against the BNF presentation code as of January 2026 data. The BNF presentation name is also included.
Note that ePACT2 always uses the latest BNF code, the BNF code as of January 2026 onwards will also apply to all historical data.
For any static reports, example monthly PCA data, or English Prescribing Data (EPD), the BNF presentation code prior to January 2026 data will remain unchanged.
Early access to these updates, along with other changes and the new BNF Version 90 (plus historic editions), is now available on the Open Data Portal at BNF Code Information - Monthly Changes.