diff --git a/resources/cql/DKTK_STRAT_GENETIC_VARIANT b/resources/cql/DKTK_STRAT_GENETIC_VARIANT
index 1021262..594fa34 100644
--- a/resources/cql/DKTK_STRAT_GENETIC_VARIANT
+++ b/resources/cql/DKTK_STRAT_GENETIC_VARIANT
@@ -2,4 +2,4 @@ define GeneticVariantCount:
 if InInitialPopulation then [Observation: Code '69548-6' from loinc] else {} as List <Observation>
 
 define GeneticVariantCode:
-First (from [Observation: Code '69548-6' from loinc] O return O.component.where(code.coding contains Code '48018-6' from loinc).value.coding.code.first())
+observation.component.where(code.coding contains Code '48018-6' from loinc).value.coding.code.first()