diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/XVerExtensionManager.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/XVerExtensionManager.java
index 6c5b94e3f..707ba0448 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/XVerExtensionManager.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/XVerExtensionManager.java
@@ -286,4 +286,34 @@ public class XVerExtensionManager {
     }
   }
 
+  public String getReference(String url) {
+    String version = getVersion(url);
+    String base = VersionUtilities.getSpecUrl(version);
+    if (base == null) {
+      return null;
+    } else {
+      String path = url.substring(url.indexOf("-")+1);
+      if (!path.contains(".")) {
+        return null;
+      }
+      String type = path.substring(0, path.indexOf("."));
+      if (Utilities.existsInList(type, "Annotation", "Attachment", "Identifier", "CodeableConcept", "Coding", "Quantity", "Duration", "Range", "Period", "Ratio", "RatioRange", "SampledData", "Signature", "HumanName", "Address", "ContactPoint", "Timing")) {
+        return Utilities.pathURL(base, "datatypes-definitions.html#"+path+"|"+VersionUtilities.getNameForVersion(version)+" "+path);
+      }
+      if (Utilities.existsInList(type, "Element", "BackboneElement", "BackboneType", "PrimitiveType", "DataType", "Base")) {
+        return Utilities.pathURL(base, "types-definitions.html#"+path+"|"+VersionUtilities.getNameForVersion(version)+" "+path);
+      }
+      if (Utilities.existsInList(type, "UsageContext", "RelatedArtifact", "DataRequirement", "ParameterDefinition", "TriggerDefinition", "Expression", "ContactDetail", "ExtendedContactDetail", "VirtualServiceDetail", "Availability", "MonetaryComponent", "Contributor")) {
+        return Utilities.pathURL(base, "metadatatypes-definitions.html#"+path+"|"+VersionUtilities.getNameForVersion(version)+" "+path);
+      }
+      if (Utilities.existsInList(type, "Reference", "CodeableReference")) {
+        return Utilities.pathURL(base, "references-definitions.html#"+path+"|"+VersionUtilities.getNameForVersion(version)+" "+path);
+      }
+      if (Utilities.existsInList(type, "Meta")) {
+        return Utilities.pathURL(base, "resource-definitions.html#"+path+"|"+VersionUtilities.getNameForVersion(version)+" "+path);
+      }
+      return Utilities.pathURL(base, type.toLowerCase()+"-definitions.html#"+path+"|"+VersionUtilities.getNameForVersion(version)+" "+path);
+    }
+  }
+
 }
\ No newline at end of file