diff --git a/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnection.java b/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnection.java
index 98263bac6..dcacc0f2c 100644
--- a/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnection.java
+++ b/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnection.java
@@ -155,7 +155,7 @@ public class SQLServerConnection implements ISQLServerConnection, java.io.Serial
     SharedTimer getSharedTimer() throws SQLServerException {
         if (state == State.Closed) {
             SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_connectionIsClosed"),
-                    null, false);
+                    SQLServerException.EXCEPTION_XOPEN_CONNECTION_FAILURE, false);
         }
         if (null == sharedTimer) {
             this.sharedTimer = SharedTimer.getTimer();
@@ -1167,7 +1167,7 @@ public String toString() {
     void checkClosed() throws SQLServerException {
         if (isSessionUnAvailable()) {
             SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_connectionIsClosed"),
-                    null, false);
+                    SQLServerException.EXCEPTION_XOPEN_CONNECTION_FAILURE, false);
         }
     }
 
diff --git a/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnectionPoolProxy.java b/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnectionPoolProxy.java
index 9aa915967..82bf388b7 100644
--- a/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnectionPoolProxy.java
+++ b/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnectionPoolProxy.java
@@ -72,7 +72,7 @@ SQLServerConnection getWrappedConnection() {
     void checkClosed() throws SQLServerException {
         if (!bIsOpen) {
             SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_connectionIsClosed"),
-                    null, false);
+                    SQLServerException.EXCEPTION_XOPEN_CONNECTION_FAILURE, false);
         }
     }
 
diff --git a/src/test/java/com/microsoft/sqlserver/jdbc/SQLServerConnectionTest.java b/src/test/java/com/microsoft/sqlserver/jdbc/SQLServerConnectionTest.java
index 042d72b42..a615567b7 100644
--- a/src/test/java/com/microsoft/sqlserver/jdbc/SQLServerConnectionTest.java
+++ b/src/test/java/com/microsoft/sqlserver/jdbc/SQLServerConnectionTest.java
@@ -425,6 +425,7 @@ public void testClosedConnection() throws SQLException {
         } catch (SQLServerException e) {
             assertEquals(e.getMessage(), TestResource.getResource("R_connectionIsClosed"),
                     TestResource.getResource("R_wrongExceptionMessage"));
+            assertEquals("08S01", e.getSQLState(), TestResource.getResource("R_wrongSqlState"));
         }
         try (Connection conn = getConnection()) {
             conn.close();
@@ -433,6 +434,7 @@ public void testClosedConnection() throws SQLException {
         } catch (SQLServerException e) {
             assertEquals(e.getMessage(), TestResource.getResource("R_connectionIsClosed"),
                     TestResource.getResource("R_wrongExceptionMessage"));
+          assertEquals("08S01", e.getSQLState(), TestResource.getResource("R_wrongSqlState"));
         }
     }
 
@@ -567,6 +569,7 @@ public void testClientConnectionId() throws Exception {
             } catch (SQLException e) {
                 assertEquals(e.getMessage(), TestResource.getResource("R_connectionIsClosed"),
                         TestResource.getResource("R_wrongExceptionMessage"));
+              assertEquals("08S01", e.getSQLState(), TestResource.getResource("R_wrongSqlState"));
             }
         }
 
diff --git a/src/test/java/com/microsoft/sqlserver/jdbc/TestResource.java b/src/test/java/com/microsoft/sqlserver/jdbc/TestResource.java
index 3eb6ddaaa..15c7311d6 100644
--- a/src/test/java/com/microsoft/sqlserver/jdbc/TestResource.java
+++ b/src/test/java/com/microsoft/sqlserver/jdbc/TestResource.java
@@ -61,6 +61,7 @@ protected Object[][] getContents() {
             {"R_connectionReset", "Connection reset"}, {"R_unknownException", "Unknown exception"},
             {"R_deadConnection", "Dead connection should be invalid"},
             {"R_wrongExceptionMessage", "Wrong exception message"},
+            {"R_wrongSqlState", "Wrong sql state"},
             {"R_parameterNotDefined", "Parameter {0} was not defined"},
             {"R_unexpectedExceptionContent", "Unexpected content in exception message"},
             {"R_connectionClosed", "The connection has been closed"},