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00_copied_reference/medicine_lookup_checks/CheckPrescribingByVTM.sql

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+-- Snowflake version: Check prescribing by VTM (Virtual Therapeutic Moiety)
+-- Uses unified PrimaryCareMedication table (combines EMIS + TPP)
+
+SET StartDate = '2025-11-01';
+SET EndDate = '2025-12-31';
+
+WITH SnomedCodes AS (
+    SELECT "ProductSnomedCode", "ProductDescription"
+    FROM DATA_HUB.DWH."DimMedicineAndDevice"
+    WHERE "TherapeuticMoietySnomedCode" = '41145911000001106'  -- Tirzepatide VTM
+)
+SELECT DISTINCT
+    dos."OrganisationName",
+    dp."PersonKey",
+    pcm."DateMedicationStart" AS EffectiveDate,
+    sc."ProductDescription",
+    CAST(pcm."Quantity" AS VARCHAR(20)) AS Quantity,
+    pcm."QuantityText" AS Dosage
+FROM DATA_HUB.PHM."PrimaryCareMedication" pcm
+INNER JOIN DATA_HUB.DWH."DimPerson" dp
+    ON pcm."PatientPseudonym" = dp."PatientPseudonym"
+INNER JOIN SnomedCodes sc
+    ON pcm."SNOMEDCode" = sc."ProductSnomedCode"
+INNER JOIN DATA_HUB.DWH."DimOrganisationAndSite" dos
+    ON dp."CurrentGeneralPractice" = dos."SiteCode"
+WHERE pcm."DateMedicationStart" BETWEEN $StartDate AND $EndDate
+    AND pcm."PatientPseudonym" IS NOT NULL
+    AND dos."OrganisationSubType" = 'GP Practice'
+    AND dos."IsSiteNorfolkAndWaveney" = 'Yes'
+    AND dos."IsSiteActive" = 'Yes';