Wisconsin Creates Statutory Presumption That Billing Statements and Invoices Reflect the Reasonable Value of Reasonably Necessary Health Care Services
Healthcare Alert | 2 min read
Apr 9, 2010
Under Wisconsin law, the plaintiff in a personal injury action may recover the “reasonable value” of health care services that are “reasonable and necessary.” The most recent state budget, 2009 Wisconsin Act 28 (“the Act”), created new presumptions that billing statements and invoices for health care services reflect this “reasonable value,” and that the services were “reasonable and necessary.” Wis. Stat. § 908.03(6m)(bm). The Act also explicitly precludes the introduction of “collateral source payments,” as evidence of the reasonable value of medical services.
New Presumptions of “Reasonable Value” and “Reasonable Necessity”
The Act creates the presumption that billing statements reflect the “reasonable value” of health care services. It further provides that those services are presumed to be “reasonable” and “necessary.” Previously, expert testimony was required to demonstrate the reasonableness of the amounts charged, or the necessity of the medical services provided, if such issues were disputed. Now, there is a presumption in favor of the plaintiff on these points upon the introduction of medical bills, and it is the defendant’s burden to overcome it with contrary proof. These new presumptions are included in recently revised Wisconsin Civil Jury Instructions 1756 and 1757.
Admissibility of Collateral Source Payments
The Act also limits the manner in which a defendant can challenge the new presumptions. A doctrine known as the “collateral source rule” has long forbidden juries from reducing a plaintiff’s damage award on the basis of payments made by sources other than the defendant, such as insurance companies. The theory behind the doctrine is that a defendant’s responsibilities to pay for damages should not be decreased by reason of a plaintiff’s foresight in buying health insurance. However, information concerning collateral source payments has sometimes been admitted as evidence of the “reasonable value” of services provided. The Act codifies case law holding that defendants are prohibited from introducing such collateral source payments, even for this limited purpose. Wis. Stat. § 908.03(6m)(bm).
However, the Act does not repeal Wis. Stat. § 893.55(7), which provides that evidence of collateral source payments are admissible evidence in an action to recover damages for medical malpractice. The Wisconsin Supreme Court has interpreted § 893.55(7) to permit the admission of collateral source payments in medical malpractice cases only for the purpose of assisting the jury in determining the reasonable value of medical services. Lagerstrom v. Murtle Worth Hospital – Mayo Health System, 2005 WI 124, 285 Wis. 2d 1, 700 N.W.2d 201. This, of course, stands in direct conflict with the preclusion of such evidence at the newly created Wis. Stat. § 908.03(6m)(bm). In its comments to the newly revised Wisconsin Civil Jury Instruction 1757, the Wisconsin Civil Jury Instructions Committee takes the position that Wis. Stat. § 893.55(7), as a statute specific to medical malpractice, controls over Wis. Stat. § 908.03(6m)(bm), which is a general statute created as a part of the state budget. Thus, only in cases of medical malpractice, collateral source payment evidence may still be admissible for the purposes of rebutting the new presumption that billing statements reflect the reasonable value of reasonably necessary health care services.
Related Capabilities
Featured Insights

Insights for Employers Alert
Jun 9, 2026
A Win for Employers: Federal District Court Finds $100,000 H-1B Visa Petition Fee is Unlawful

Press Release
Jun 9, 2026
Calvin Edwards Honored With 2026 Rising Star Award by the Black Men Lawyers’ Association

Webinar
Jun 9, 2026
John DeLascio Speaks on How Social Inflation is Reshaping Insurance Risk

Consumer Crossroads: Where Financial Services and Litigation Intersect
Jun 8, 2026
Court Distinguishes Between Clickwrap and Browsewrap Arbitration Agreements

Webinar
Jun 8, 2026
Aimee Delaney and Jason Oliveri Speak on Workplace Generative AI Usage

Insights for Insurers Alert
Jun 8, 2026
New York’s Sweeping Motor Vehicle Tort Law Reforms: More Than Meets the Eye

Privacy, Cyber & AI Decoded Alert
Jun 5, 2026
AI Governance Expectations on the Rise for Insurers Amid New Regulatory Activity

Press Release
Jun 4, 2026
Hinshaw Recognized Nationally in 2026 Chambers USA Directory

In The News
Jun 3, 2026
Scott Seaman Discusses Wrongful-Death and Survival Actions Handbook on IICLE Podcast



