You are right. It's much easier for people to have discussions between themselves or with a doctor by using the abbreviation....instead of the whole medical term. I wish they would get one for fibromyalgia. Every time I have to spell it in reference to my mom, I have to look it up.
I kinda watch out for those folks who have COL. It’s not necessarily deadly but it’s definitely uncomfortable and contagious. COL? Crappy Outlook on Life.