The EventCount macro takes into account event code 033-13895-00, or whose severity is greater than 20.
For a complete description of these events, see the information about Parallel Database Extensions (PDE) messages in Teradata Vantage™ - Database Messages, B035-1096.
This macro does not report counts for events, which are informational in nature, but rather only those events that will give you an idea of the health of Vantage.
From this macro, you can observe event code counts and plan maintenance accordingly.