diff --git a/exception/__init__.py b/exception/__init__.py
index 4b92945a..8b4feec0 100644
--- a/exception/__init__.py
+++ b/exception/__init__.py
@@ -2,24 +2,24 @@
 
 
 def UnauthorizedException(message="", code=None):
-    raise ProblemException(401, "Unauthorized", message, "Unauthorized")
+    raise ProblemException(401, "Unauthorized", message, "Unauthorized", code)
 
 
 def ForbiddenException(message="", code=None):
-    raise ProblemException(403, "Forbidden", message, "Forbidden")
+    raise ProblemException(403, "Forbidden", message, "Forbidden", code)
 
 
 def NotFoundException(message="", code=None):
-    raise ProblemException(404, "Not Found", message, "NotFound")
+    raise ProblemException(404, "Not Found", message, "NotFound", code)
 
 
 def MethodNotAllowedException(message="", code=None):
-    raise ProblemException(405, "Method Not Allowed", message, "MethodNotAllowed")
+    raise ProblemException(405, "Method Not Allowed", message, "MethodNotAllowed", code)
 
 
 def InternalServerErrorException(message="", code=None):
-    raise ProblemException(500, "Internal Server Error", message, "InternalServerError")
+    raise ProblemException(500, "Internal Server Error", message, "InternalServerError", code)
 
 
 def NotImplementedException(message="", code=None):
-    raise ProblemException(501, "Not Implemented", message, "NotImplemented")
+    raise ProblemException(501, "Not Implemented", message, "NotImplemented", code)
diff --git a/exception/messages.py b/exception/messages.py
index 402cc1ce..705ef31e 100644
--- a/exception/messages.py
+++ b/exception/messages.py
@@ -21,3 +21,4 @@
 MESSAGE_CODE_SUBMISSION_IRRELEVANT_VERSION_CANNOT_BE_MAPPED = 19
 MESSAGE_CODE_SUBMISSION_NOT_FOUND = 21
 # next: 23
+# Do not change the numbers and new always. These are linked to client applications.