Index: MsgDefs.h
===================================================================
diff -u -red8477cbcf83515f4398d9526ffafe2796e52173 -r74571171a271cf51c5b876cd08efaa76d4c58ed5
--- MsgDefs.h	(.../MsgDefs.h)	(revision ed8477cbcf83515f4398d9526ffafe2796e52173)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision 74571171a271cf51c5b876cd08efaa76d4c58ed5)
@@ -78,8 +78,9 @@
     MSG_ID_DG_ACCELEROMETER_DATA = 0x34,                                ///< DG broadcast of accelerometer data
     MSG_ID_UI_NEW_TREATMENT_PARAMS = 0x35,                              ///< UI request to validate new treatment parameter set
     MSG_ID_HD_NEW_TREATMENT_PARAMS_RESPONSE = 0x36,                     ///< HD response to new treatment parameters set
-    MSG_ID_UI_START_TREATMENT = 0x37,                                   ///< UI user request to initiate a treatment
-    MSG_ID_HD_START_TREATMENT_RESPONSE = 0x38,                          ///< HD response to user request to initiate a treatment
+    MSG_ID_DG_HEAT_DISINFECT_DATA = 0x37,                               ///< DG heat disinfection publish data
+    MSG_ID_UI_START_TREATMENT = 0x38,                                   ///< UI user request to initiate a treatment
+    MSG_ID_HD_START_TREATMENT_RESPONSE = 0x39,                          ///< HD response to user request to initiate a treatment
 #ifdef EMC_TEST_BUILD
     MSG_ID_CAN_ERROR_COUNT = 0x999,  // test code in support of EMC testing
 #endif
@@ -166,6 +167,7 @@
     MSG_ID_HEAT_DISINFECT_RSRVR1_TO_RSRVR2_DURATION_MINS = 0xA01E,      ///< Heat disinfection reservoir 1 to reservoir 2 duration in minutes
     MSG_ID_HEAT_DISINFECT_RSRVR2_TO_RSRVR1_DURATION_MINS = 0xA01F,      ///< Heat disinfection reservoir 2 to reservoir 1 duration in minutes
     MSG_ID_HEAT_DISINFECT_NO_OF_CYCLES_TO_RUN = 0xA020,                 ///< Heat disinfection number of cycles to run
+    MSG_ID_HEAT_DISINFECT_PUBLISH_INTERVAL_OVERRIDE = 0xA021,           ///< Heat disinfection data publish interval override request
 
     MSG_ID_HD_DEBUG_EVENT = 0xFFF1,                                     ///< HD debug event text to be logged in event log
     MSG_ID_DG_DEBUG_EVENT = 0xFFF2,                                     ///< DG debug event text to be logged in event log