How RxRank reads the data

Clear inputs. Clear limits.

A short guide to the data, fallbacks and calculations behind each pharmacy page.

Review principles

Built for a defensible decision.

Source first

Raw NHSBSA source files remain in the database. Display labels and calculations are extracted server-side, so a future mapping change does not require rewriting the source.

Latest available

The page aims at the requested recent period, then falls back to the newest imported month when NHSBSA publication is delayed. The effective range is shown in the pharmacy record.

Twelve-month window

The default view is a maximum of twelve months, enough for a useful operating trend without turning the comparison into an unreadable data dump.

Grouped for decisions

Pharmacy First, hypertension, contraception and vaccinations are grouped in the preview and revenue views. Click the relevant table row or card to reveal the detail.

Revenue is an estimate

Mapped payment values use the configured NHS fees and caps. They are intended for acquisition screening, not as a substitute for claim validation or a payment statement.