Index: MsgDefs.h
===================================================================
diff -u -rcb36235b4b58396a6bd8e51bf5c65475a4fd50c3 -r80ea0f399f49da3d282d88916821b0fc7c7b87f6
--- MsgDefs.h	(.../MsgDefs.h)	(revision cb36235b4b58396a6bd8e51bf5c65475a4fd50c3)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision 80ea0f399f49da3d282d88916821b0fc7c7b87f6)
@@ -215,6 +215,8 @@
     MSG_ID_AVAILABLE_B7 = 0xB7,                                                     ///< Msg ID not used - available for use.
     MSG_ID_UI_VITALS_ADJUSTMENT_REQUEST = 0xB8,                                     ///< UI vitals adjustment request
     MSG_ID_TD_VITALS_ADJUSTMENT_RESPONSE  = 0xB9,                                   ///< TD vitals adjustment response
+    MSG_ID_UI_ISO_UF_STATE_REQUEST = 0xBA,                                          ///< UI ISO UF pause/resume/end request
+    MSG_ID_TD_ISO_UF_STATE_RESPONSE = 0xBB,                                         ///< TD ISO UF pause/resume/end response
     MSG_ID_UI_SETUP_TUBING_SET_CONNECTIONS_CONFIRM_REQUEST = 0xD6,                  ///< UI setup connection confirmation request
     MSG_ID_TD_SETUP_TUBING_SET_CONNECTIONS_CONFIRM_RESPONSE = 0xD7,                 ///< TD setup connection confirmation response
     MSG_ID_DD_SUBSTITUTION_PUMP_DATA = 0xDB,                                        ///< DD substitution pump broadcast data.
Index: TDDefs.h
===================================================================
diff -u -rcb36235b4b58396a6bd8e51bf5c65475a4fd50c3 -r80ea0f399f49da3d282d88916821b0fc7c7b87f6
--- TDDefs.h	(.../TDDefs.h)	(revision cb36235b4b58396a6bd8e51bf5c65475a4fd50c3)
+++ TDDefs.h	(.../TDDefs.h)	(revision 80ea0f399f49da3d282d88916821b0fc7c7b87f6)
@@ -433,6 +433,16 @@
 };
 typedef enum UF_Commands UF_CMD_T;                      ///< Type for UF command IDs enumeration
 
+/// Enumeration of isolated ultrafiltration command IDs.
+enum ISO_UF_Commands
+{
+    ISO_UF_CMD_PAUSE = 0,                               ///< Pause isolated UF command
+    ISO_UF_CMD_RESUME,                                  ///< Resume isolated UF command
+    ISO_UF_CMD_END,                                     ///< End isolated UF command
+    NUM_OF_ISO_UF_CMDS                                  ///< Number of isolated UF commands
+};
+typedef enum ISO_UF_Commands ISO_UF_CMD_T;              ///< Type for isolated UF command IDs enumeration
+
 /// Enumeration of ultrafiltration adjustment option IDs.
 enum UF_Adjustments
 {