USA Today is reporting that, according to the Los Angeles coroner's office, Whitney Houston's official cause of death was "drowning and effects of atherosclerotic heart disease and cocaine use."
The singer was found in the bathtub of her Beverly Hilton Hotel room on Feb. 11, hours before a pre-Grammy party. She was 48.
The coroner's office also said the manner of death was an "accident."
However, the toxicology report adds that "Cocaine and metabolites were identified and were contributory to the death. Marijuana, Alprazolam (Xanax), Cyclobenzaprine (Flexeril) and Diphenhydramine (Benadryl) were identified but did not contribute to the death."
An autopsy was conducted the day after she died. Capt. John Kades of the Los Angeles County coroner's office said at the time there no indications of foul play and no obvious signs of trauma on Houston's body. Prescription pill bottles were found in her room, but the number of pills were "not in alarming amounts," said officials.
Read more at USA Today.