Code 5150 is the code for involuntary psychiatric hold. It allows qualified officers to involuntarily confine a mentally ill person they believe could be a grave danger to themselves  or others. Find out more about the code here

Friends worried the 23-year-old actress was becoming suicidal and placed a call to the Los Angeles police. It was claimed that Barton had been using drugs and alcohol for an elongated period of time to cope with financial troubles as well as her love life.

Barton left the hospital to work on her new show, ‘The Beautiful Life’, which is produced by Ashton Kutcher. Her representative Craig Schneider said: “I can confirm that she’s left the hospital with the intention to resume production.”

Strange behavior, mental disorders and depression are not uncommon among celebrities. The most famous recent Code 5150 was conducted on Britney Spears in January 2008 after her marriage failed and she feared losing custody of her children.

Mischa Barton is most famous for her role as Melissa Cooper in the hit TV show ‘The O.C.’.

Find out more about Mischa Barton by clicking here.