Wis. Stat. § 153.77: Immunity from liability.

(1) A health care provider that submits information to the department under this subchapter is immune from civil liability for all of the following:

(a) Any act or omission of an employee, official or agent of the health care provider that results in the release of a prohibited data element while submitting data to the department.

(b) Any act or omission of the department that results in the release of data.

(2) The immunity provided under this section does not apply to intentional, willful or reckless acts or omissions by health care providers.