The 54-year-old recently revealed that he was sleeping on a park bench because he had no money.
"The situation is that he's come into the office and we've discussed quite a few different options that are available to him," the PFA's head of player welfare Michael Bennett told BBC Sport.
"We're waiting for him to make a decision on what option he wants to take. Mostly the options are detox and supporting him in terms of getting better. He can do a 28-day detox where he'll have support around him to help him deal with his drinking issues.
"He'll also have support ready for him when he comes out after the detox, as well as trying to find him some housing. What option he chooses is up to him. He's in a hotel at the moment, a safe environment."
Sansom won 86 caps for England between 1978 and 1988 before his retirement in 1994.