The year and month for which the claim for dispensed items has been submitted to NHSBSA in the format YYYYMM.

ICB code is the unique identifying code attributed to an Integrated Care Board (ICB).

The name of the Integrated Care Board (ICB).

The first nine digits of the 15-digit BNF Code, which indicate the chemical substance under which the drug or appliance is categorised.

This is the International Non-proprietary Name (INN) and is the standard registered name for the active constituent of that medicine, for example omeprazole. For compounds the name may be more complex, such as co-magaldrox magnesium/aluminium hydrox). In some cases the name is a collective one for a range of medicines, such as alginic acid compound preparations. For prescriptions in BNF chapters 19 to 23, there is no "chemical" name, as these are dressings and appliances. Therefore, these items are reported under the BNF section name, for example, night drainage bags.

The BNF Code is a 15-digit code in which the first seven digits are allocated according to the categories in the BNF and the last 8 digits represent the medicinal product, form, strength and the link to the generic equivalent product. NHS Prescription Services has created pseudo BNF chapters, which are not published, for items not included in BNF chapters 1 to 15. The majority of such items are dressings and appliances which NHS Prescription Services has classified into four pseudo BNF chapters (20 to 23).

The individual preparation name of the drug, which may be proprietary or generic, followed by strength and form.

The number of times a Private Controlled product appears on a prescription form, not the quantity prescribed.