Index: vhUnitTest/TECH/ListUtils/Concatenate/Test.cls.xml
===================================================================
diff -u
--- vhUnitTest/TECH/ListUtils/Concatenate/Test.cls.xml	(revision 0)
+++ vhUnitTest/TECH/ListUtils/Concatenate/Test.cls.xml	(revision 2097)
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Export generator="Cache" version="24">
+<Class name="vhUnitTest.TECH.ListUtils.Concatenate.Test">
+<Super>vhUnitTest.TestCase</Super>
+
+<Method name="Test">
+<Implementation><![CDATA[
+	#dim List1 As %ListOfDataTypes = ##class(TECH.ListUtils).CreateListOfDataTypes(1,2,3)
+	#dim List2 As %ListOfDataTypes = ##class(TECH.ListUtils).CreateListOfDataTypes(5,4)
+	#dim List As %ListOfDataTypes = ##class(TECH.ListUtils).ConcatenateLists(List1,List2)
+	If $$$AssertEquals(List.Count(),5) {
+		Do $$$AssertEquals(List.GetAt(1),1)
+		Do $$$AssertEquals(List.GetAt(2),2)
+		Do $$$AssertEquals(List.GetAt(3),3)
+		Do $$$AssertEquals(List.GetAt(4),5)
+		Do $$$AssertEquals(List.GetAt(5),4)
+	}
+	
+	do $$$AssertEquals(List1.Count(),3)
+	do $$$AssertEquals(List2.Count(),2)
+]]></Implementation>
+</Method>
+</Class>
+
+
+</Export>
Index: TECH/ListUtils.cls.xml
===================================================================
diff -u -r2081 -r2097
--- TECH/ListUtils.cls.xml	(.../ListUtils.cls.xml)	(revision 2081)
+++ TECH/ListUtils.cls.xml	(.../ListUtils.cls.xml)	(revision 2097)
@@ -781,6 +781,23 @@
 	}
 ]]></Implementation>
 </Method>
+
+<Method name="ConcatenateLists">
+<ClassMethod>1</ClassMethod>
+<FormalSpec>Lists...:%ListOfDataTypes</FormalSpec>
+<ReturnType>%List</ReturnType>
+<Implementation><![CDATA[
+	#dim Result As %ListOfDataTypes = ##class(%ListOfDataTypes).%New()
+	set Iterator = ##class(ArrayOneDimIterator).%New(.Lists)
+	while Iterator.HasNext() {
+		Set ListIterator = ##class(TECH.ListIterator).%New(Iterator.Next())
+		While ListIterator.HasNext() {
+			Do Result.Insert(ListIterator.Next())
+		}
+	}
+	quit Result
+]]></Implementation>
+</Method>
 </Class>