Ozzy Osbourne had suffered from coronary artery disease as well as Parkinson’s, according to the certificate filed at a register office in London.

Ozzy Osbourne 's cause of death has been determined. According to a death certificate obtained by the New York Times and The Sun , the legendary rock star died of "out of hospital cardiac arrest" and "acute myocardial infarction," with coronary artery disease and Parkinson's disease with autonomic dysfunction listed as "joint causes."

Ozzy Osbourne’s official cause of death has been made public. The legendary rock musician died last month at the age of 76, having spoken publicly about his health conditions, including a Parkinson’s disease diagnosis, for several years prior.