The British National Formulary (BNF) is a therapeutic classification structure that provides information for clinicians. It is widely used in NHS IT systems and NHS Digital official publications to allow comparisons between drug groups.
The format of the BNF was changed from Edition 70 (September 2015 - March 2016) to make it more user friendly. However, the NHS Business Services Authority (BSA), who process dispensed prescription forms and collect prescribing data, continue to use the classification structure prior to Edition 70. NHS Prescription Services, within the NHS BSA, have created pseudo BNF chapters 18 to 23 for items not included in BNF chapters 1 to 15 (mainly dressings and appliances). Further information on classifications and pseudo chapters can be found on the NHS BSA website.
Prescribing for diabetes is captured in Chapter 6.1 'Drugs used in diabetes'. Further information on diabetes medications can be found in Background and scope.