Index: dialin/hd/ui_proxy.py
===================================================================
diff -u -r17e48d8bf1a8960537d0615f7118bb8532e1015c -ra51e2af877a26c03f4d75b8f8fc7136c23e8a5d7
--- dialin/hd/ui_proxy.py	(.../ui_proxy.py)	(revision 17e48d8bf1a8960537d0615f7118bb8532e1015c)
+++ dialin/hd/ui_proxy.py	(.../ui_proxy.py)	(revision a51e2af877a26c03f4d75b8f8fc7136c23e8a5d7)
@@ -19,6 +19,7 @@
 from ..utils.conversions import integer_to_bytearray, float_to_bytearray
 import struct
 from ..utils.base import _AbstractSubSystem, _publish
+from collections import OrderedDict
 
 
 class HDUIProxy(_AbstractSubSystem):
@@ -49,6 +50,24 @@
     RESPONSE_REJECTED = 0
     RESPONSE_ACCEPTED = 1
 
+    REQUEST_REJECT_REASON_NONE = 0
+    REQUEST_REJECT_REASON_NOT_ALLOWED_IN_CURRENT_MODE = 1
+    REQUEST_REJECT_REASON_TIMEOUT_WAITING_FOR_USER_CONFIRM = 2
+    REQUEST_REJECT_REASON_NOT_IN_TREATMENT_MODE = 3
+    REQUEST_REJECT_REASON_INVALID_TREATMENT_STATE = 4
+    REQUEST_REJECT_REASON_TREATMENT_TOO_CLOSE_TO_FINISHED = 5
+    REQUEST_REJECT_REASON_TREATMENT_TIME_OUT_OF_RANGE = 6
+    REQUEST_REJECT_REASON_TREATMENT_TIME_LESS_THAN_CURRENT = 7
+    REQUEST_REJECT_REASON_BLOOD_FLOW_OUT_OF_RANGE = 8
+    REQUEST_REJECT_REASON_DIAL_FLOW_OUT_OF_RANGE = 9
+    REQUEST_REJECT_REASON_DIAL_VOLUME_OUT_OF_RANGE = 10
+    REQUEST_REJECT_REASON_UF_VOLUME_OUT_OF_RANGE = 11
+    REQUEST_REJECT_REASON_UF_RATE_OUT_OF_RANGE = 12
+    REQUEST_REJECT_REASON_TREATMENT_TIME_LESS_THAN_MINIMUM = 13
+    REQUEST_REJECT_REASON_UF_NOT_IN_PROGESS = 14
+    REQUEST_REJECT_REASON_UF_NOT_PAUSED = 15
+    REQUEST_REJECT_REASON_SALINE_BOLUS_IN_PROGRESS = 16
+
     # HD version message field positions
     START_POS_MAJOR = DenaliMessage.PAYLOAD_START_INDEX
     END_POS_MAJOR = START_POS_MAJOR + 1
@@ -182,6 +201,12 @@
         self.target_blood_flow_rate = 0
         self.target_dialysate_flow_rate = 0
 
+        self.reject_reasons = OrderedDict()
+        for attr in dir(self):
+            if not callable(getattr(self, attr)) and attr.startswith("REQUEST_REJECT"):
+                self.reject_reasons[attr] = getattr(self, attr)
+        self.reject_reasons = OrderedDict(sorted(self.reject_reasons.items(), key=lambda key: key[1]))
+
     def get_hd_version(self):
         """
         Gets the hd version
@@ -254,6 +279,14 @@
         """
         return self.duration_change_reject_reason
 
+    def get_reject_reasons(self):
+        """
+        Gets all possible reject reasons
+
+        @return: OrderedDict(), {"<REJECT_REASON>": <value> ... }
+        """
+        return self.reject_reasons
+
     def get_duration_change_time_min(self):
         """
         Gets the duration change time
Index: tests/unit_tests/test_ui_proxy.py
===================================================================
diff -u
--- tests/unit_tests/test_ui_proxy.py	(revision 0)
+++ tests/unit_tests/test_ui_proxy.py	(revision a51e2af877a26c03f4d75b8f8fc7136c23e8a5d7)
@@ -0,0 +1,37 @@
+###########################################################################
+#
+#  Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
+#
+#  THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
+#  WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
+#
+#  @file test_imports.py
+#
+#  @date 29-Apr-2020
+#  @author P. Lucia
+#
+#  @brief Tests imports of all available modules
+#
+############################################################################
+import unittest
+import sys
+sys.path.append("../..")
+from datetime import datetime
+from dialin.hd.hemodialysis_device import HD
+
+
+class DGValves(unittest.TestCase):
+
+    # @unittest.skip("Skipping test_imports")
+    def test_hd_get_reject_reasons(self):
+        hd = HD()
+
+        i = 0
+        for key, value in hd.ui.get_reject_reasons().items():
+            self.assertEqual(i, value)
+            i += 1
+
+
+
+if __name__ == '__main__':
+    unittest.main(verbosity=2)