Wis. Stat. § 632.64: Certification of disability.

For the purpose of insurance policies that they issue, insurers doing a life insurance business in this state shall afford equal weight to a certification of disability signed by a physician with respect to matters within the scope of the physician’s professional license, to a certification of disability signed by a chiropractor with respect to matters within the scope of the chiropractor’s professional license, and to a certification of disability signed by a podiatrist with respect to matters within the scope of the podiatrist’s professional license. This section does not require an insurer to treat a certificate of disability as conclusive evidence of disability.