Garry Shandling's official cause of death revealed

The Los Angeles coroner's office revealed on Tuesday that late comedian Garry Shandling, who unexpectedly passed away in March of this year, died of a blood clot in his heart.

The actor's fatal clot in his lung occurred after he had developed several blood clots in his legs, as well. According to the Associated Press, the condition is called deep vein thrombosis.

SEE ALSO: Actress Carrie Fisher dead at 60

Shandling, who starred in and created the '90s HBO series "The Larry Sanders Show," passed away on March 24 at the age of 66 after calling 911 to his Los Angeles home because he wasn't feeling well. He had recently taken a trip to Hawaii where he also reportedly experienced issues with his health.

See photos of Garry Shandling throughout his life:

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The official cause of death came over seven months after Shandling died because the coroner's office was waiting for conclusive toxicology tests to be completed. A "therapeutic amount of Xanax" was found in his system.

The announcement comes during the same week of the high-profile deaths of George Michael, on Christmas, and Carrie Fisher, who passed away on Tuesday just days after suffering a massive heart attack.

Here's how stars reacted to his death in March:

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