Index: firmware/App/Services/Messaging.h
===================================================================
diff -u -r9c833ef5623ce842267e284d958820ac0dc3a7fc -r28f137017915af37b784c95803b044136fab4d5b
--- firmware/App/Services/Messaging.h	(.../Messaging.h)	(revision 9c833ef5623ce842267e284d958820ac0dc3a7fc)
+++ firmware/App/Services/Messaging.h	(.../Messaging.h)	(revision 28f137017915af37b784c95803b044136fab4d5b)
@@ -69,6 +69,19 @@
     U32 maxDialRate;            ///< Maximum dialysate flow rate (in mL/min)
 } TREATMENT_PARAM_BROADCAST_PAYLOAD_T;
 
+/// Payload record structure for Pre-Treatment states broadcast.
+typedef struct
+{
+    U32 mSubMode;                   ///< Current Pre-Treatment state.
+    U32 mInstallState;              ///< Current Tube Set Install state.
+    U32 mSelfTestDryState;          ///< Current Dry Self-Test state.
+    U32 mPrimeState;                ///< Current Prime state.
+    U32 mRecirculateState;          ///< Current Pre-Treatment Recirculate state.
+    U32 mConfirmRxState;            ///< Current Confirm Rx state.
+    U32 mHeparinState;              ///< Current Heparin Setup state.
+    U32 mPatientConnectionState;    ///< Current Patient Connection state.
+} PRE_TREATMENT_STATES_DATA_PAYLOAD_T;
+
 /// Institutional record structure containing treatment parameter range limits.
 typedef struct
 {