Connor Abbott was found dead at his hotel room in the Phra Nakhon district of Bangkok on Sunday, September 22, last year.
Jon Heath, senior coroner for York and North Yorkshire, said the cause of death was morphine toxicity.
Identification was confirmed by a funeral director, the hearing at Northallerton Coroners’ Court on Tuesday (March 11) heard.
Mr Heath adjourned the inquest to a later date.
As The Press has reported, Mr Abbott, from Thirsk, was a well-known York City supporter who started following the team as a teenager at Bootham Crescent.
A Go Fund Me Page set up in memory of Mr Abbott described him as a “beloved son, brother, and a dear friend to countless people”.
Mr Abbott had a “passion for entertaining those around him”, it said, and was “known for his infectious energy and joy”.
“He was more than a friend – he was a source of laughter, happiness, and unforgettable memories to everyone who knew him,” the page added.
‘We’ll do all that we can to pay the respect and the condolences that he deserves,’ says York City manager
A minute’s applause was held for Mr Abbott on the 23rd minute of York City’s match with Eastleigh at the LNER Community Stadium on Saturday, September 28, last year.
York manager Adam Hinshelwood said it was a “sad time” and the club was doing “all that we can to pay the respect and the condolences that he deserves”.
“As a football club, we send all of our condolences to Connor’s family,” he told The Press ahead of the match.
“I’m sure that it will be a really emotional time for them and everyone in the crowd.”
City co-chairman Matt Uggla said it was “absolutely awful news to lose a member of the York family especially so young”.
“My thoughts are with his family and friends,” he said.
“Followed YCFC for some years, from teenage years at Bootham Crescent to the LNER.
“Home and away, we’ve had many laughs over the years.”
They added: “Condolences to his family and close friends. Rest in peace Connor.”
