diff --git a/resources/zib/zib-HearingFunction.HearingAid.xml b/resources/zib/zib-HearingFunction.HearingAid.xml
index 59a7cb23e..9a2515636 100644
--- a/resources/zib/zib-HearingFunction.HearingAid.xml
+++ b/resources/zib/zib-HearingFunction.HearingAid.xml
@@ -42,6 +42,17 @@
         <targetProfile value="http://nictiz.nl/fhir/StructureDefinition/zib-HearingFunction.HearingAid.Product" />
       </type>
     </element>
+    <element id="DeviceUseStatement.reasonReference">
+      <path value="DeviceUseStatement.reasonReference" />
+      <slicing>
+        <rules value="open" />
+      </slicing>
+    </element>
+    <element id="DeviceUseStatement.reasonReference:bowelFunction">
+      <path value="DeviceUseStatement.reasonReference" />
+      <sliceName value="bowelFunction" />
+      <max value="0" />
+    </element>
     <element id="DeviceUseStatement.reasonReference:functionalOrMentalStatus">
       <path value="DeviceUseStatement.reasonReference" />
       <sliceName value="functionalOrMentalStatus" />
diff --git a/resources/zib/zib-VisualFunction.VisualAid.xml b/resources/zib/zib-VisualFunction.VisualAid.xml
index 582f874d6..3ba0b21f6 100644
--- a/resources/zib/zib-VisualFunction.VisualAid.xml
+++ b/resources/zib/zib-VisualFunction.VisualAid.xml
@@ -42,6 +42,17 @@
         <targetProfile value="http://nictiz.nl/fhir/StructureDefinition/zib-VisualFunction.VisualAid.Product" />
       </type>
     </element>
+    <element id="DeviceUseStatement.reasonReference">
+      <path value="DeviceUseStatement.reasonReference" />
+      <slicing>
+        <rules value="open" />
+      </slicing>
+    </element>
+    <element id="DeviceUseStatement.reasonReference:bowelFunction">
+      <path value="DeviceUseStatement.reasonReference" />
+      <sliceName value="bowelFunction" />
+      <max value="0" />
+    </element>
     <element id="DeviceUseStatement.reasonReference:functionalOrMentalStatus">
       <path value="DeviceUseStatement.reasonReference" />
       <sliceName value="functionalOrMentalStatus" />