Actress Lindsay Lohan is expected to learn on Wednesday whether she will be released up to two months early from a court-ordered rehabilitation program.

Court officials said a Beverly Hills judge will issue an order on Wednesday in her case.

The court hearing follows media reports that doctors now treating the "Freaky Friday" actress in a Los Angeles hospital unit believe she does not suffer from the drug or psychiatric problems that were previously diagnosed.

Lohan, 24, was released from jail on August 2 after serving 13 days of a 90-day sentence for violating her probation in a 2007 drunk driving and cocaine possession charge.

She immediately entered a residential rehab program in Los Angeles to start a 90-day stint ordered by the court as part of her sentence.

But the prosecutor in her case said two weeks ago that health care professionals were likely to recommend an early release for Lohan, with follow-up treatment as an outpatient.

Celebrity news website TMZ.com has reported that doctors believe Lohan was wrongly diagnosed with attention deficit hyperactivity disorder, for which she has been taking medication for several years.

TMZ said she was also incorrectly diagnosed more recently with bipolar disorder.

Lohan admitted in 2007 that she was addicted to alcohol and drugs, and went to rehab three times. She was ordered to wear an alcohol monitoring anklet in May this year and was jailed for missing multiple alcohol education classes imposed as part of her probation three years ago.

The career of the once promising actress, who starred in "Mean Girls" and "The Parent Trap," has foundered in the past three years, with Lohan hitting the headlines repeatedly for nights on the town and bizarre behavior.

Her mother Dina has blamed a "hardball" judge for over-reacting and sending Lohan to jail. She has also said her daughter plans to return to New York from Hollywood once she leaves rehab.

Lohan's legal troubles have delayed shooting on her next movie in which she will play 1970s porn star Linda Lovelace. She was last in movie theaters with the 2007 flop "I Know Who Killed Me."