Index: MessagePayloads.h
===================================================================
diff -u -r9e1f1a6979c06dafaaf5f95912de5bc25a10f86c -r281e9fc146b02976566d167d5e08a8a9af291c99
--- MessagePayloads.h	(.../MessagePayloads.h)	(revision 9e1f1a6979c06dafaaf5f95912de5bc25a10f86c)
+++ MessagePayloads.h	(.../MessagePayloads.h)	(revision 281e9fc146b02976566d167d5e08a8a9af291c99)
@@ -14,10 +14,10 @@
 * @date    (original)  07-Nov-2024
 *
 ***************************************************************************/
-
-#ifndef __MESSAGE_PAYLOADS_H__
-#define __MESSAGE_PAYLOADS_H__
 
+#ifndef __MESSAGE_PAYLOADS_H__
+#define __MESSAGE_PAYLOADS_H__
+
 #ifdef _TD_
 #include "TDCommon.h"
 #endif
@@ -99,6 +99,14 @@
     F32 currentQd;                         ///< Current dialysate flow rate (ml/min)
 } GEN_DIALYSATE_MODE_DATA_T;
 
+/// Heat disinfect mode data structure
+typedef struct
+{
+    U32 heatDisinfectExecState;            ///< Heat disinfect execution state
+    U32 ddRecircDwellTimeMS;               ///< Current DD recirculation dwell time
+    U32 wcidRecircDwellTimeMS;             ///< Current WCID recirculation dwell time
+} HEAT_DISINFECT_STATE_DATA_T;
+
 #pragma pack(pop)
 
 /// Enumeration of operation modes.  These are in order of priority (highest to lowest).
@@ -112,4 +120,4 @@
 
 /**@}*/
 
-#endif
+#endif