Broad tweeted his frustration regarding the controversial dismissal of Alex Hales on the first day of the test at The Oval after the England opener was given out caught by Yasir Shah off Mohammad Amir.
Hales was earlier fined 15 percent of his match fee for showing dissent to the television umpire, who upheld Shah's catch at midwicket though the batsman believed the ball had touched the ground before carrying to the fielder.
Broad had admitted his offence and accepted the fine proposed by match referee Richie Richardson and there was no need for a formal hearing, the governing body ICC said in a statement.
"One of the most fundamental principles of the sport is to always accept and respect an umpire's decision," former West Indies captain Richardson said.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
"In this case, Stuart ignored this golden rule and made inappropriate comments in regard to the umpires' decision."
Pakistan go into Sunday's final day of the test in a strong position to level the series at 2-2.
(Reporting by Sudipto Ganguly in Mumbai; Editing by Clare Fallon)
