Coroner : Whitney Houston Died of "Accidental Drowning," Cocaine Found

Whitney Houston's offical cause of death was accidental drowning , according to the L.A. County Coroner .

She also had cocaine in her system , and both heart  disease and drug use were found to be contributing factors in her death .

The coroner's report lists the official cause of death as "drowning and effects of atherosclerotic heart disease  and cocaine use ," and labels it an "accident ."

In terms of the drugs in Houston's system , the toxicology report reads  ; Cocaine and metabolites were identified and were contributory to the death .

Marijuana , Alpazolam , (Xanax ) , Cycobenzaprine (Flexeril)  and Diphenhydramine (Benedral) were identified but did not contribute to the death ."

The singer was found dead at 48 last month at the Beverly Hilton Hotel .

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