@ankara-- No, bruised lung is only caused by injury to the chest area.
If you're talking about chest pain or sore ribs after a long period of chronic coughing, that has to do with the chest muscles and is normal.
It has happened to me as well in the past. Once, I was sick for a month and coughed the entire time. It took several weeks for the chest pain to go away after my illness was over.
Bruised lung doesn't have anything to do with the muscles, it's a direct injury to the lungs and is a serious condition like the article said.