Read Billie Lourd's Emotional Statement in Wake of New Drug Details Surrounding Carrie Fisher's Death
Carrie Fisher's Life and Career In Pictures

Carrie Fisher's daughter, Billie Lourd, hopes her mother's death will urge others to confront their own issues with substance abuse.

The L.A. County Coroner released its full autopsy Monday on the "Star Wars" actress, revealing she had cocaine, morphine, codeine and oxycodone in her system when she was hospitalized after suffering a heart attack during a flight to LAX. They also found small amounts of ecstasy and heroin.

"My mom battled drug addiction and mental illness her entire life. She ultimately died of it," Lourd said in a statement to People. "She was purposefully open in all of her work about the social stigmas surrounding these diseases."

"She talked about the shame that torments people and their families confronted by these diseases. I know my Mom, she'd want her death to encourage people to be open about their struggles," she continued. "Seek help, fight for government funding for mental health programs. Shame and those social stigmas are the enemies of progress to solutions and ultimately a cure. Love you Momby."

Fisher most famously opened up about addiction in her book "Postcards from the Edge," which was adapted into a film with Meryl Streep and Shirley MacLaine. She continued to be outspoken about her ongoing battle with both addiction and bipolar disorder in interviews and her one-woman show "Wishful Drinking."

Billie Lourd Shares Poignant Tribute to Mom Carrie Fisher (Photo)