Queries :: Counting Values And Creating A Table For Each Defined Count

I am using an existing database which allows my company to track claims information. One report my supervisor has asked for is a table which shows the counts of each kind of event occurring at a district level by department. For example, the classifications are injury classes like FSA, so I need to design a report which says facility a has 3 fsa's in the Wireline department in a table format. I have been looking into union queries as suggested by other sites but nothing seems to work. My labels are District, Analysis Code and Department.