Index: DDDefs.h
===================================================================
diff -u -r915dbd9d975a43f9ea6d1cddba70890f2b663bc6 -r4840658cc7b64ea35141bfb0692f2435e1763060
--- DDDefs.h	(.../DDDefs.h)	(revision 915dbd9d975a43f9ea6d1cddba70890f2b663bc6)
+++ DDDefs.h	(.../DDDefs.h)	(revision 4840658cc7b64ea35141bfb0692f2435e1763060)
@@ -7,8 +7,8 @@
 *
 * @file    DDDefs.h
 *
-* @author  (last)      Sameer Kalliadan Poyil
-* @date    (last)      24-Jun-2026
+* @author  (last)      Santhosh Reddy
+* @date    (last)      06-Jul-2026
 *
 * @author  (original)  Sean Nash
 * @date    (original)  01-Aug-2024
@@ -335,7 +335,12 @@
     DD_EVENT_BLOOD_LEAK_NUM_OF_SET_POINT_CHECK_FAILURES,                ///< DD blood leak number of setpoint check failures
     DD_EVENT_CPU_RAM_ERROR_STATUS,                                      ///< DD CPU RAM error
     DD_EVENT_BLOOD_LEAK_SELF_TEST_RESULT,                               ///< DD blood leak self test result
-    DD_EVENT_LAST = DD_EVENT_BLOOD_LEAK_SELF_TEST_RESULT,               ///< DD last event in list
+    DD_EVENT_BC_SWITCH_ONLY_MODE_CHANGE,                                ///< DD Balancing Chamber Switching Only status event
+    DD_EVENT_BC_STATE_CHANGE,                                           ///< Balancing chamber state switch event
+    DD_EVENT_HEATER_STATE_CHANGE,                                       ///< DD heater state change event
+    DD_EVENT_DRY_BICART_STATE_CHANGE,                                   ///< DD Dry Bicart State change event
+    DD_EVENT_UF_PUMP_ON_OFF,                                            ///< DD UltraFiltration State change event
+    DD_EVENT_LAST = DD_EVENT_UF_PUMP_ON_OFF,                            ///< DD last event in list
     FP_EVENT_STARTUP,                                                   ///< FP startup event
     FP_EVENT_FIRST = FP_EVENT_STARTUP,                                  ///< FP first event in list
     FP_EVENT_OP_MODE_CHANGE,                                            ///< FP Op mode change event
@@ -474,22 +479,6 @@
 /**@}*/
 
 /**
- *  @addtogroup Ultrafiltraion
- *  @{
- */
-
-/// Enumeration of ultra filtration exec states.
-enum Ultra_filtration_Exec_States
-{
-    DD_UF_PAUSED = 0,                               ///< Ultrafiltration pasued state
-    DD_UF_RUNNING,                                  ///< Ultrafiltration running state
-    NUM_OF_UF_EXEC_STATES                           ///< Number of ultrafiltration exec states
-};
-typedef enum Ultra_filtration_Exec_States UF_EXEC_STATE_T;  ///< Type for ultrafiltration exec state enumeration
-
-/**@}*/
-
-/**
  *  @addtogroup SpentChamberFill
  *  @{
  */