His representatives said he was struggling with depression.
Following an autopsy and further tests, the Los Angeles county department of medical examiner-coroner said Troyer died on 21 April from the effects of alcohol.
He was pronounced dead on April 3, three weeks later.
They announced Wednesday that actor Vern Troyer's death in April was caused by alcohol poisoning after years of alcohol abuse.
A sequelae refers to a condition that was the outcome of a previous disease or injury.
The coroner's office certified that the manner of death was a suicide. In 2017, he was admitted to hospital to be treated for alcohol addiction and later attended rehab. The actor called 911 himself, repeatedly saying on the call and when he arrived to the emergency room that he wanted to die, the report said.
S. Korea struggles to contain concerns over sanctions relief
Senior North Korean officials including sports minister Kim Il-guk and foreign affairs minister Ri Su-yong were also at the game. Earlier, the president had said discussions about a second summit were progressing and that details "won't be too far away".
In 2002, Troyer almost died from alcohol poisoning after going on a bender following his split from wife Genevieve Gallen after she made a decision to end their marriage of two months.
Troyer became a Hollywood star thanks to his portrayal of Dr Evil's clone, Mini Me, in the second and third Austin Powers movies.
As well as Austin Powers, Troyer, who appeared on Celebrity Big Brother in 2009, starred in films including Harry Potter and the Philosopher's Stone, The Imaginarium of Doctor Parnassus and Men in Black.
After his hospitalization a year ago, he was candid about his drinking problem, saying he had followed up with a stint at a rehab center.
He told fans on his Facebook page at the time: "As you know, I've battled alcohol addiction in the past and while it's not always been an easy fight, I'm willing to continue my fight day by day". The views expressed therein are not necessarily those of stlucianewsonline.com, its sponsors or advertisers.