diff --git a/apps/viz-backend/app/main.py b/apps/viz-backend/app/main.py
index 830b1381..6b84ea4b 100644
--- a/apps/viz-backend/app/main.py
+++ b/apps/viz-backend/app/main.py
@@ -134,7 +134,7 @@ def get_patients(run_id: int, db: Session = Depends(get_db)) -> list[int]:
 def get_intervals(
     run_id: int,
     person_id: int | None = None,
-    person_source_value: int | None = None,
+    person_source_value: str | None = None,
     db: Session = Depends(get_db),
 ) -> dict:
     """
diff --git a/execution_engine/omop/criterion/drug_exposure.py b/execution_engine/omop/criterion/drug_exposure.py
index c81f2a9d..2cc0565a 100644
--- a/execution_engine/omop/criterion/drug_exposure.py
+++ b/execution_engine/omop/criterion/drug_exposure.py
@@ -357,7 +357,6 @@ def dict(self) -> dict[str, Any]:
         Return a dictionary representation of the criterion.
         """
         return {
-            "id": self._id,
             "category": self._category.value,
             "ingredient_concept": self._ingredient_concept.model_dump(),
             "dose": (