THE MEDICAL MALPRACTICE COMPLAINT DID NOT ALLEGE A LACK OF INFORMED CONSENT; THEREFORE REFERENCES TO A LACK OF INFORMED CONSENT CAUSE OF ACTION IN PLAINTIFFS’ BILL OF PARTICULARS WERE STRICKEN (FOURTH DEPT).

The Fourth Department, reversing (modifying) Supreme Court in this medical malpractice action, determined the hospital’s motion to strike allegations of lack of informed consent should have been granted. That cause of action was not identified in the complaint. Therefore plaintiffs could not use their bill of particulars to assert it:

We agree with the Hospital defendants that the court erred in denying that part of their motion seeking, in effect, to strike the allegations of lack of informed consent from plaintiffs’ amended bill of particulars to the Hospital defendants, and we modify the order accordingly. “[A] bill of particulars is intended to amplify the pleadings, limit the proof, and prevent surprise at trial . . . Whatever the pleading pleads, the bill must particularize since the bill is intended to [afford] the adverse party a more detailed picture of the claim . . . being particularized . . . A bill of particulars may not be used to allege a new theory not originally asserted in the complaint” … . For those purposes, “[l]ack of informed consent is a distinct theory of medical malpractice liability rooted in a specific professional duty to reasonably inform and obtain consent from the patient,” and claims for traditional medical malpractice and lack of informed consent ” ‘comprise[ ] different elements’ ” … . Here, we conclude that “[t]he complaint is based solely on [traditional] medical malpractice and does not contain a separate cause of action for lack of informed consent” … and that a review of the allegations in the complaint does not support the conclusion that the distinct theory of lack of informed consent was ” ‘sufficiently pleaded to avoid surprise and prejudice to [the Hospital] defendants’ ” … . Inasmuch as plaintiffs’ complaint does not presently plead a cause of action for lack of informed consent, the allegations in plaintiffs’ amended bill of particulars relating to lack of informed consent must be stricken … . Heather J. v Rochester Regional Health, 2026 NY Slip Op 01880, Fourth Dept 3-27-26

Practice Point: Here the complaint did not allege a cause of action for lack of informed consent. Therefore references to lack of informed consent in the bill of particulars can be stricken.​