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01_medicine_lookups/medicine_reference_lookup.sql

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+/*
+    Medicine reference lookup
+    =========================
+
+    Purpose:
+    Search DATA_HUB.DWH."DimMedicineAndDevice" for dm+d products and their
+    related BNF, VTM, VMP, AMP, and pack-level identifiers.
+
+    Common uses:
+    - Find the SNOMED product codes to use in a prescribing or dispensing query.
+    - Check whether a medicine group is better captured by BNF, VTM, VMP, or
+      explicit product codes.
+    - Understand how products roll up through the dm+d hierarchy.
+
+    Replace the SEARCH_TEXT and optional BNF_PREFIX before running.
+*/
+
+SET SEARCH_TEXT = 'tirzepatide';
+SET BNF_PREFIX = NULL;
+
+SELECT DISTINCT
+    med."ProductSnomedCode",
+    med."ProductDescription",
+    med."ProductLevel",
+    med."TherapeuticMoietySnomedCode",
+    med."TherapeuticMoietyName",
+    med."MedicinalLatestSnomedCode",
+    med."ParentPresentationSnomedCode",
+    med."BNFCode",
+    med."BNFParagraphCode",
+    med."RouteName",
+    med."StrengthDescription",
+    med."PackUnitDescription",
+    med."IndicativePricePerUnit",
+    med."DrugTariffPricePerUnit"
+FROM DATA_HUB.DWH."DimMedicineAndDevice" med
+WHERE (
+        LOWER(med."ProductDescription") LIKE '%' || LOWER($SEARCH_TEXT) || '%'
+     OR LOWER(med."TherapeuticMoietyName") LIKE '%' || LOWER($SEARCH_TEXT) || '%'
+     OR med."ProductSnomedCode" = $SEARCH_TEXT
+     OR med."TherapeuticMoietySnomedCode" = $SEARCH_TEXT
+     OR med."MedicinalLatestSnomedCode" = $SEARCH_TEXT
+)
+  AND ($BNF_PREFIX IS NULL OR med."BNFCode" LIKE $BNF_PREFIX || '%')
+ORDER BY
+    med."TherapeuticMoietyName",
+    med."MedicinalLatestSnomedCode",
+    med."ProductLevel",
+    med."ProductDescription";