The 27-year-old, whose regular playing partner is Colin Fleming, will take time out from the sport to battle Hodgkin's lymphoma.
Together they had won two titles in 2012, in Eastbourne and Delray Beach, and represented Great Britain in the Olympics, as well as at Davis Cup level.
"Unfortunately I will be away from tennis for a while," Hutchins tweeted, "as I was recently diagnosed with Hodgkin's lymphoma.
"I am doing well, very positive with excellent medical support, friends and family around me."
It is believed that Andy Murray, who won the Brisbane International title earlier in the day, dedicated victory to Hutchins. At the time he said only that his emotional celebration was for a "sick friend", adding: "You're going to be okay. You're going to get through."
LTA chief executive Roger Draper wished Hutchins well: "Everyone in British tennis is behind Ross. He is a true ambassador for the sport, both on an off the court, and I have no doubt he will overcome this setback.
"It's important that we give Ross and his family the privacy they need during this challenging time."