Additional Info

Field Value
Data last updated 2 May 2025
Metadata last updated 2 May 2025
Created 2 May 2025
Format text/csv
Licence Open Government Licence 3.0 (United Kingdom)

Data Dictionary

Column Title Type Description
YEAR_MONTH_APPLICABLE Year Month Applicable date The year and month (formatted as YYYY-MM, e.g., 2025-02) in which updates to the BNF Code Information were applied. For example, changes applied to January BNF file will be recorded as 2025-01.
BNF_CHAPTER BNF Chapter string The name given to a British National Formulary (BNF) chapter. This is the broadest grouping of the BNF therapeutical classification system.
BNF_CHAPTER_CODE BNF Chapter Code string The unique code used to refer to the BNF Chapter.
BNF_SECTION BNF Section string The name given to a BNF Section. This is the next broadest grouping of the BNF therapeutical classification system after chapter.
BNF_SECTION_CODE BNF Section Code string The unique code used to refer to the BNF Section.
BNF_PARAGRAPH BNF Paragraph string The name given to the BNF Paragraph. This level of grouping of the BNF Therapeutical classification system sits below BNF section.
BNF_PARAGRAPH_CODE BNF Paragraph Code string The unique code used to refer to the BNF Paragraph.
BNF_SUBPARAGRAPH BNF Subparagraph string The name of the BNF Sub-Paragraph, a subdivision of the Paragraph level of the BNF
BNF_SUBPARAGRAPH_CODE BNF Subparagraph Code string The unique code used to refer to the BNF Sub-Paragraph.
BNF_CHEMICAL_SUBSTANCE BNF Chemical Substance string The name given to the BNF Chemical Substance (the main active ingredient in a drug. For example, Amoxicillin).
BNF_CHEMICAL_SUBSTANCE_CODE BNF Chemical Substance Code string A unique code used to refer to a BNF Chemical Substance.
BNF_PRODUCT BNF Product string The name of the Product (generic or branded) without indication of the strength or formulation.
BNF_PRODUCT_CODE BNF Product Code string The unique code used to refer to the BNF Product.
BNF_PRESENTATION BNF Presentation string The name given to the BNF Presentation (specific type, strength, and formulation of a drug or the specific type of an appliance. For example, Amoxicillin 500mg capsules).
BNF_PRESENTATION_CODE BNF Presentation Code string The unique code used to refer to a BNF Presentation.
CHANGE_TYPE Change Type string

This outlines the type of change that has occurred compared with the previously published current file. A change may be an addition, deletion, or amendment. Where an amendment has been made, the report will display the original line followed by the revised line; for example, Crinx bandage 10cm x 3.5m amended to Crinx bandage 10cm x 4m.
Annual version changes, implemented in January, include instances where a product is reassigned to a different BNF chapter, BNF section etc. In these cases, the previous BNF chapter/ section etc will appear under Remove, and the updated chapter or section will appear under Add.