The sport's world governing body, the FIA, said they were excluded "for providing evidence deliberately misleading to the stewards".
Hamilton was summoned by stewards on Thursday, ahead of this weekend's Malaysian GP, to discuss what the FIA described as "a new element" of evidence.
BBC commentator and former F1 driver Martin Brundle said: "This does not look good for Hamilton or McLaren. They've decided that effectively he was telling fibs."
But let's not be too harsh on Lewis. There is, after all, a fine tradition of British men travelling all the way over to Australia and being economical with the truth.
UPDATE: "I'm not a liar or a dishonest person," said the 24-year-old on Friday. Hamilton also said the debacle was "definitely the worst thing I've experienced in my life". He added: "I could not tell you how sorry I am for the embarrassment. I apologise to the race stewards for wasting their time and making them look silly. This is not an easy thing to do, to step back and realise I was in the wrong. But I was in the wrong, I was misled." So that's an apology, is it?