Va. Code § 54.1-2967
Any physician or other person who renders any medical aid or treatment to any person for any wound which such physician or other person knows or has reason to believe is a wound inflicted by a weapon specified in § 18.2-308 and which wound such physician or other person believes or has reason to believe was not self-inflicted shall as soon as practicable report such fact, including the wounded person's name and address, if known, to the sheriff or chief of police of the county or city in which treatment is rendered. If such medical aid or treatment is rendered in a hospital or similar institution, such physician or other person rendering such medical aid or treatment shall immediately notify the person in charge of such hospital or similar institution, who shall make such report forthwith.
Any physician or other person failing to comply with this section shall be guilty of a Class 3 misdemeanor. Any person participating in the making of a report pursuant to this section or participating in a judicial proceeding resulting therefrom shall be immune from any civil liability in connection therewith, unless it is proved that such person acted in bad faith or with malicious intent.
Va. Code § 54.1-2967