Index: HDDefs.h
===================================================================
diff -u -rd96e30bdbb76c099bd8253ea4a95df215d5eec7e -r855881a7c6cd157c5764f4d7ab45a4f11605be27
--- HDDefs.h	(.../HDDefs.h)	(revision d96e30bdbb76c099bd8253ea4a95df215d5eec7e)
+++ HDDefs.h	(.../HDDefs.h)	(revision 855881a7c6cd157c5764f4d7ab45a4f11605be27)
@@ -782,6 +782,7 @@
     HD_EVENT_BLOOD_LEAK_ZEROING_REQUIRED,                               ///< HD event blood leak zeroing required.
     HD_EVENT_UF_RATE_TX_DUR,                                            ///< HD event UF rate changes in treatment duration.
     HD_EVENT_UF_RATE_TIME_TX_DUR,                                       ///< HD event UF rate time difference in treatment duration.
+    HD_EVENT_AIR_TRAP_STATE_CHANGE,                                     ///< HD event air trap state change.
     NUM_OF_EVENT_IDS                                                    ///< Total number of HD events
 };
 typedef enum HD_Event_List HD_EVENT_ID_T;                               ///< Type for HD event list enumeration