Wis. Stat. § 806.39: Enforcement of foreign judgments.

(1) Subject to subs. (2) and (3), if an action is brought to enforce a judgment of another jurisdiction expressed in a foreign money and the judgment is recognized in this state as enforceable, the enforcing judgment must be entered as provided in s. 806.36 whether or not the foreign judgment confers an option to pay in an equivalent amount of U.S. dollars. A satisfaction or partial payment made upon the foreign judgment must be credited against the amount of foreign money specified in the judgment, notwithstanding the entry of judgment in this state.

(2) Notwithstanding sub. (1), a foreign judgment may be filed and entered in the judgment and lien docket under s. 806.24.

(3) A judgment entered on a foreign-money claim only in U.S. dollars in another state must be enforced in this state in U.S. dollars only.