Right, there are a zillion things, and most of them are kinda redundant. I see them like this:

`status` is the most important. "Did this work or not, yes or no?"
`category_code` is the next most important. "How did this work or not."

The rest of them are purely informational. I don't even know why `category_type` is a thing, and `additional` and `description` are just purely for more information. `category_code` and `description` are similar to "200" and "OK."