He arrived at the FA's Soho Square headquarters flanked by his agents, the Bicali brothers Ion and Victor, and Peter Kay, chief executive of Sporting Chance.
The 25-year-old has already agreed to a period of rehabilitation at the clinic, run by former Arsenal and England star Tony Adams, and is confident of being free to resume his career by the start of next season.
Today, PFA chief Taylor appeared to backtrack from his position of last week when he said: "Cocaine has not been a persistent activity for the player but he has used the drug on a number of occasions this year because of problems in his personal life. There's no evidence that this is a persistent problem and he's accepted his guilt."
Taylor also accused Chelsea of breaching FA rules and violating Mutu's human rights by refusing to release his registration. The west London club have threatened to sue the player to recoup some of the £15.8m transfer fee and will not pass on his details to another club until they have received compensation.
If he receives a ban of more than six months Chelsea are unlikely to pursue the claim.
If, however, he receives a ban between three and six months, or a period of enforced rehabilitation, then the club will launch the unprecedented legal claim.
Taylor added: "Chelsea are trying to kick him when he's down by pursuing him for compensation. Having sacked him they're trying to stop him carrying on his career. They can't do that, it's basic human rights."
Chelsea insist they are acting within FIFA regulations.