Courtesy of British Heart Foundation
And from my experience, people are not interested in details like - I had 100% blockage of the RCA (that was stented on the night of the event), 80% blockage of the left main stem and 40% blockages of the LAD for which I had a triple bypass five days later. Way too much info for most people, a lot easier to tell them you had a heart attack, they operated and they fixed you! :-)
Check out British Heart Foundation at: https://www.bhf.org.uk/