The troubled point guard attended a pretrial hearing Friday in Denver, in which his lawyer said Lawson enters treatment Saturday at Cliffside Malibu, a celebrity rehabilitation center in California that treats patients with addiction and psychiatric issues.
"We will be handling the personal needs of the defendant," said Lawson's lawyer, Harvey Steinberg, who added the program will "ensure his sobriety."
Lawson did not speak at the hearing.
Lawson, 27, was arrested Tuesday in Los Angeles on suspicion of driving under the influence. He was arrested in Denver for the same thing in January.
"Now we have a new situation that needs to be dealt with," Steinberg said Friday, referring to the Los Angeles arrest.
Nuggets GM Tim Connelly said he talked to Lawson on Friday and told him the organization backs its point guard.
"Ty is going through a rough time right now, but we're all behind him," Connelly said after the Nuggets finished summer league play in Las Vegas. "Ty's a really good person. He's a Nugget, so when one of our guys goes through issues, we support him as a family and everyone stands behind him."
After his January arrest, Lawson was ordered not to drink alcohol or violate laws as part of his bond. The Denver judge on Friday ordered Lawson to use a stationary blood-alcohol monitoring device after his release from treatment.
Prosecutors had asked for Lawson to be required to use a device, such as an ankle bracelet or a home breath tester, that monitors the body for alcohol.
Lawson's next court appearance in Denver was set for Aug. 20.
Denver District Judge Doris Burd said she didn't order sobriety monitoring sooner because she thought the NBA was monitoring Lawson. She said she could issue a warrant for Lawson's arrest if he leaves treatment early.
Information from The Associated Press was used in this report.