LRBs0261/1
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2005 - 2006 LEGISLATURE
ASSEMBLY SUBSTITUTE AMENDMENT 1,
TO 2005 ASSEMBLY BILL 764
October 19, 2005 - Offered by Committee on Insurance.
AB764-ASA1,1,3 1An Act to amend 893.55 (7); and to create 893.55 (8) of the statutes; relating
2to:
awards to persons suffering damages as the result of medical malpractice
3and evidence of compensation for those damages.
Analysis by the Legislative Reference Bureau
Under current law, as recently interpreted by the Supreme Court in Lagerstrom
v. Myrtle Werth Hospital-Mayo Health System
, 2005 WI 124 (2005), in a medical
malpractice case, evidence of payments made to compensate a person for injury from
persons other than the defendant (collateral source payments) are allowed. The
court also held that current law permitted the introduction of evidence of the injured
person's obligations of subrogation or reimbursement resulting from those collateral
source payments for medical services. But, the court held that the obligation
evidence can only be used to determine the reasonable value of those medical
services, not to reduce the value of those medical services for the purpose of
determining the amount of the damage award for those medical services.
This substitute amendment allows the introduction of collateral source
payments in a medical malpractice case and the introduction of evidence of the
injured person's obligations of subrogation or reimbursement resulting from those
collateral source payments. The substitute amendment requires the finder of fact
to determine the amount of collateral source payments made to compensate the
claimant for the injury resulting from the medical malpractice and the amount that

the claimant is legally obligated to pay the persons who made the collateral source
payments. The substitute amendment requires the court to subtract the amount the
claimant is legally obligated to pay the persons who made the collateral source
payments from the amount of those collateral source payments and reduce the
amount of damages awarded to the claimant by that difference.
The people of the state of Wisconsin, represented in senate and assembly, do
enact as follows:
AB764-ASA1, s. 1 1Section 1. 893.55 (7) of the statutes is amended to read:
AB764-ASA1,2,92 893.55 (7) Evidence of any compensation for bodily injury received from
3sources other than the defendant to compensate the claimant for the injury is
4admissible in an action to recover damages for medical malpractice. Evidence of the
5claimant's obligations of subrogation or reimbursement resulting from payments
6made by sources other than the defendant to compensate the claimant for the injury
7is admissible in an action to recover damages for medical malpractice.
This section
8does not limit the substantive or procedural rights of persons who have claims based
9upon subrogation.
AB764-ASA1, s. 2 10Section 2. 893.55 (8) of the statutes is created to read:
AB764-ASA1,2,1211 893.55 (8) (a) If medical malpractice did occur, the finder of fact shall determine
12all of the following:
AB764-ASA1,2,1413 1. The amount that was provided from sources other than the defendant to
14compensate the claimant for the injury resulting from the medical malpractice.
AB764-ASA1,2,1715 2. The amount that the claimant is legally obligated to pay the sources under
16subd. 1. for the compensation provided by those sources under subd. 1., either
17through subrogation or by reimbursement.
AB764-ASA1,3,3
1(b) The court shall subtract the amount determined under par. (a) 2. from the
2amount determined under par. (a) 1. and reduce the amount of damages awarded to
3the claimant under ch. 655 by that difference.
AB764-ASA1, s. 3 4Section 3. Initial applicability.
AB764-ASA1,3,65 (1) This act first applies to medical malpractice acts or omissions occurring on
6the effective date of this subsection.
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