diff --git a/src/schema/rules/sidecars/mri.yaml b/src/schema/rules/sidecars/mri.yaml
index 90fa891e7f..d9967c13c6 100644
--- a/src/schema/rules/sidecars/mri.yaml
+++ b/src/schema/rules/sidecars/mri.yaml
@@ -39,7 +39,9 @@ MRISample:
   selectors:
     - modality == "mri"
   fields:
-    BodyPart: optional
+    BodyPart:
+      level: optional
+      description_addendum: Corresponds to DICOM Tag 0018, 0015 `Body Part Examined`.
     BodyPartDetails: optional
     BodyPartDetailsOntology: optional