An autopsy shall be performed in the case of any infant death which is suspected to be attributable to Sudden Infant Death Syndrome (SIDS).
For the purposes of this section, "Sudden Infant Death Syndrome" (SIDS), a diagnosis of exclusion, means the sudden and unexpected death of an infant less than eighteen months of age whose death remains unexplained after a thorough postmortem examination which includes an autopsy.
Va. Code § 32.1-285.1