N.H. Rev. Stat. § 507-C:6
In any action for medical injury, the declaration or other affirmative pleading shall not specify the amount of damages claimed, but shall, instead, contain a general allegation of damage and shall state that the damages claimed are within any minimum or maximum jurisdictional limits of the court to which the pleading is addressed. At any time after service of the pleading, the defendant may, by special interrogatory, which shall be answered within 15 days, demand a statement of the amount of damages claimed by the plaintiff. The information provided in response to the special interrogatory shall not be admissible in evidence at trial, nor shall it be communicated to the jury in argument or otherwise.
RSA 507-C:6
1977, 417:22, eff. Sept. 3, 1977.