diff --git a/server/src/main/java/org/opensearch/OpenSearchException.java b/server/src/main/java/org/opensearch/OpenSearchException.java
index 4fa20f74eb044..132b5ad711442 100644
--- a/server/src/main/java/org/opensearch/OpenSearchException.java
+++ b/server/src/main/java/org/opensearch/OpenSearchException.java
@@ -34,6 +34,7 @@
 
 import org.opensearch.action.support.replication.ReplicationOperation;
 import org.opensearch.cluster.action.shard.ShardStateAction;
+import org.opensearch.cluster.routing.NodeWeighedAwayException;
 import org.opensearch.cluster.routing.PreferenceBasedSearchNotAllowedException;
 import org.opensearch.cluster.routing.UnsupportedWeightedRoutingStateException;
 import org.opensearch.cluster.service.ClusterManagerThrottlingException;
@@ -1640,6 +1641,7 @@ private enum OpenSearchExceptionHandle {
             168,
             V_2_6_0
         ),
+        NODE_WEIGHED_AWAY_EXCEPTION(NodeWeighedAwayException.class, NodeWeighedAwayException::new, 169, V_2_6_0),
         INDEX_CREATE_BLOCK_EXCEPTION(
             org.opensearch.cluster.block.IndexCreateBlockException.class,
             org.opensearch.cluster.block.IndexCreateBlockException::new,
diff --git a/server/src/test/java/org/opensearch/ExceptionSerializationTests.java b/server/src/test/java/org/opensearch/ExceptionSerializationTests.java
index 7783e21736c9f..53d25e6f72693 100644
--- a/server/src/test/java/org/opensearch/ExceptionSerializationTests.java
+++ b/server/src/test/java/org/opensearch/ExceptionSerializationTests.java
@@ -54,6 +54,7 @@
 import org.opensearch.cluster.decommission.NodeDecommissionedException;
 import org.opensearch.cluster.node.DiscoveryNode;
 import org.opensearch.cluster.routing.IllegalShardRoutingStateException;
+import org.opensearch.cluster.routing.NodeWeighedAwayException;
 import org.opensearch.cluster.routing.PreferenceBasedSearchNotAllowedException;
 import org.opensearch.cluster.routing.ShardRouting;
 import org.opensearch.cluster.routing.ShardRoutingState;
@@ -876,6 +877,7 @@ public void testIds() {
         ids.put(166, SnapshotInUseDeletionException.class);
         ids.put(167, UnsupportedWeightedRoutingStateException.class);
         ids.put(168, PreferenceBasedSearchNotAllowedException.class);
+        ids.put(169, NodeWeighedAwayException.class);
         ids.put(10001, IndexCreateBlockException.class);
 
         Map<Class<? extends OpenSearchException>, Integer> reverse = new HashMap<>();