Index: HDDefs.h
===================================================================
diff -u -r3de3081239ddde459e82c7429d48ac8788f9bb15 -r552775ad57e17ded2bdd76b3f17cade65c912918
--- HDDefs.h	(.../HDDefs.h)	(revision 3de3081239ddde459e82c7429d48ac8788f9bb15)
+++ HDDefs.h	(.../HDDefs.h)	(revision 552775ad57e17ded2bdd76b3f17cade65c912918)
@@ -396,6 +396,18 @@
  *  @{
  */
 
+/// Blood leak zeroing states
+enum Blood_Leak_Zeroing_States
+{
+    BLD_ZEROING_IDLE = 0,                               ///< Blood leak zeroing idle.
+    BLD_ZEROING_FLUSH,                                  ///< Blood leak zeroing flush.
+    BLD_ZEROING_ZERO,                                   ///< Blood leak zeroing zero.
+    BLD_ZEROING_VERIFY_ZEROING,                         ///< Blood leak zeroing verify zeroing.
+    BLD_ZEROING_COMPLETE,                               ///< Blood leak zeroing complete.
+    NUM_OF_BLD_ZEROING                                  ///< Number of blood leak zeroing state.
+};
+typedef enum Blood_Leak_Zeroing_States BLOOD_LEAK_ZEROING_STATE_T;
+
 /// Enumeration of dialysis sub-mode states.
 enum Dialysis_States
 {