diff --git a/pkg/apigee/v1/apiproxymodel_test.go b/pkg/apigee/v1/apiproxymodel_test.go
index e3f4a84..4eecf4a 100644
--- a/pkg/apigee/v1/apiproxymodel_test.go
+++ b/pkg/apigee/v1/apiproxymodel_test.go
@@ -44,6 +44,9 @@ func TestNewAPIProxyModel(t *testing.T) {
 		{
 			"health-monitor-tcp",
 		},
+		{
+			"lb-server-unhealthy",
+		},
 	}
 	for _, tt := range tests {
 		ttDir := filepath.Join("testdata", "yaml-first", tt.name)
diff --git a/pkg/apigee/v1/loadbalancer.go b/pkg/apigee/v1/loadbalancer.go
index fafff9d..322cfb1 100644
--- a/pkg/apigee/v1/loadbalancer.go
+++ b/pkg/apigee/v1/loadbalancer.go
@@ -17,8 +17,11 @@ package v1
 import "fmt"
 
 type LoadBalancer struct {
-	Algorithm string      `xml:"Algorithm,omitempty"`
-	Servers   *ServerList `xml:"Server,omitempty"`
+	Algorithm               string                   `xml:"Algorithm,omitempty"`
+	Servers                 *ServerList              `xml:"Server,omitempty"`
+	ServerUnhealthyResponse *ServerUnhealthyResponse `xml:"ServerUnhealthyResponse,omitempty"`
+	MaxFailures             int                      `xml:"MaxFailures,omitempty"`
+	RetryEnabled            bool                     `xml:"RetryEnabled,omitempty"`
 
 	UnknownNode AnyList `xml:",any"`
 }
@@ -35,6 +38,7 @@ func ValidateLoadBalancer(v *LoadBalancer, path string) []error {
 
 	var subErrors []error
 	subErrors = append(subErrors, ValidateServers(v.Servers, subPath)...)
+	subErrors = append(subErrors, ValidateServerUnhealthyResponse(v.ServerUnhealthyResponse, subPath)...)
 
 	return subErrors
 }
diff --git a/pkg/apigee/v1/serverunhealthyresponse.go b/pkg/apigee/v1/serverunhealthyresponse.go
new file mode 100644
index 0000000..a8e0240
--- /dev/null
+++ b/pkg/apigee/v1/serverunhealthyresponse.go
@@ -0,0 +1,38 @@
+//  Copyright 2024 Google LLC
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//       http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+package v1
+
+import "fmt"
+
+type ServerUnhealthyResponse struct {
+	ResponseCodes ResponseCodeList `xml:"ResponseCode,omitempty"`
+	UnknownNode   AnyList          `xml:",any"`
+}
+
+func ValidateServerUnhealthyResponse(v *ServerUnhealthyResponse, path string) []error {
+	if v == nil {
+		return nil
+	}
+
+	subPath := fmt.Sprintf("%s.ServerUnhealthyResponse", path)
+	if len(v.UnknownNode) > 0 {
+		return []error{&UnknownNodeError{subPath, v.UnknownNode[0]}}
+	}
+
+	var subErrors []error
+	subErrors = append(subErrors, ValidateResponseCodes(&v.ResponseCodes, subPath)...)
+
+	return subErrors
+}
diff --git a/pkg/apigee/v1/testdata/yaml-first/lb-server-unhealthy/apiproxy.yaml b/pkg/apigee/v1/testdata/yaml-first/lb-server-unhealthy/apiproxy.yaml
new file mode 100644
index 0000000..831d340
--- /dev/null
+++ b/pkg/apigee/v1/testdata/yaml-first/lb-server-unhealthy/apiproxy.yaml
@@ -0,0 +1,42 @@
+#  Copyright 2024 Google LLC
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http:#www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+APIProxy:
+  .revision: 1
+  .name: httpbin
+Policies: []
+ProxyEndpoints:
+  - ProxyEndpoint:
+      .name: default
+      Flows: []
+      HTTPProxyConnection:
+        BasePath: /httpbin
+      RouteRule:
+        .name: default
+        TargetEndpoint: default
+TargetEndpoints:
+  - TargetEndpoint:
+      .name: default
+      HTTPTargetConnection:
+        Path: /test
+        LoadBalancer:
+          - Algorithm: RoundRobin
+          - Server:
+              .name: target1
+          - Server:
+              .name: target2
+          - RetryEnabled: true
+          - MaxFailures: 3
+          - ServerUnhealthyResponse:
+            - ResponseCode: 400
+            - ResponseCode: 500
\ No newline at end of file