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00_copied_reference/medicine_lookup_checks/CheckDispeningByVMP.sql

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+-- Snowflake version: Check dispensing by VMP (Virtual Medicinal Product)
+-- Uses GPMeds dispensing data from NATIONAL.GPMED
+
+WITH SnomedCodes AS (
+    SELECT "ProductSnomedCode"
+    FROM DATA_HUB.DWH."DimMedicineAndDevice"
+    WHERE "MedicinalLatestSnomedCode" = '40326811000001109'  -- Specific VMP
+),
+LatestPeriod AS (
+    SELECT MAX("ProcessingPeriodDate") AS MaxPeriodDate
+    FROM NATIONAL.GPMED."MedicinesDispensedInPrimarycare"
+)
+SELECT
+    gpm."ProcessingPeriodDate",
+    dos."OrganisationName",
+    COUNT(DISTINCT gpm."PatientPseudonym") AS UniquePatientCount,
+    SUM(gpm."ItemCount") AS TotalItemsDispensed,
+    SUM(gpm."PaidQuantity") AS TotalQuantityDispensed
+FROM NATIONAL.GPMED."MedicinesDispensedInPrimarycare" gpm
+INNER JOIN SnomedCodes sc ON gpm."PaiddmdCode" = sc."ProductSnomedCode"
+LEFT JOIN DATA_HUB.DWH."DimOrganisationAndSite" dos
+    ON gpm."CostCentreODSCode" = dos."SiteCode"
+CROSS JOIN LatestPeriod lp
+WHERE gpm."ProcessingPeriodDate" > DATEADD(MONTH, -12, lp.MaxPeriodDate)
+    AND gpm."ProcessingPeriodDate" <= lp.MaxPeriodDate
+GROUP BY gpm."ProcessingPeriodDate", dos."OrganisationName", gpm."CostCentreODSCode"
+ORDER BY gpm."ProcessingPeriodDate", dos."OrganisationName";