Cal. BPC § 802.5

(a) When a coroner receives information that is based on findings that were reached by, or documented and approved by a board-certified or board-eligible pathologist indicating that a death may be the result of a physician and surgeon’s, podiatrist’s, or physician assistant’s gross negligence or incompetence, a report shall be filed with the Medical Board of California, the Osteopathic Medical Board of California, the California Board of Podiatric Medicine, or the Physician Assistant Board. The initial report shall include the name of the decedent, date and place of death, attending physicians or podiatrists, and all other relevant information available. The initial report shall be followed, within 90 days, by copies of the coroner’s report, autopsy protocol, and all other relevant information.

(b) The report required by this section shall be confidential. No coroner, physician and surgeon, or medical examiner, nor any authorized agent, shall be liable for damages in any civil action as a result of his or her acting in compliance with this section. No board-certified or board-eligible pathologist, nor any authorized agent, shall be liable for damages in any civil action as a result of his or her providing information under subdivision (a).