N.Y. CVP. LAW § 4545 : NY Code - Section 4545: Admissibility of collateral source of payment

(a) Action for
  medical, dental or podiatric malpractice. In  any  action  for  medical,
  dental or podiatric malpractice where the plaintiff seeks to recover for
  the cost of medical care, dental care, podiatric care, custodial care or
  rehabilitation  services,  loss  of  earnings  or  other  economic loss,
  evidence shall be admissible for consideration by the court to establish
  that any such  past  or  future  cost  or  expense  was  or  will,  with
  reasonable  certainty,  be replaced or indemnified, in whole or in part,
  from  any  collateral  source  such  as  insurance  (except   for   life
  insurance),  social security (except those benefits provided under title
  XVIII of the social security act),  workers'  compensation  or  employee
  benefit  programs  (except  such  collateral  sources entitled by law to
  liens against any recovery of the plaintiff). If the  court  finds  that
  any  such  cost  or  expense  was or will, with reasonable certainty, be
  replaced or indemnified from any collateral source, it shall reduce  the
  amount  of  the  award  by  such  finding,  minus an amount equal to the
  premiums paid by the plaintiff for such benefits for the two-year period
  immediately preceding the accrual of such action  and  minus  an  amount
  equal  to the projected future cost to the plaintiff of maintaining such
  benefits. In order to find that any future cost or  expense  will,  with
  reasonable  certainty,  be  replaced  or  indemnified  by the collateral
  source, the court must find that the plaintiff is  legally  entitled  to
  the  continued receipt of such collateral source, pursuant to a contract
  or otherwise  enforceable  agreement,  subject  only  to  the  continued
  payment  of  a  premium  and  such other financial obligations as may be
  required by such agreement.
    (b) Certain actions against a public employer for personal injury  and
  wrongful  death.  1. In any action against a public employer or a public
  employee who is subject to indemnification by  a  public  employer  with
  respect  to  such  action  or both for personal injury or wrongful death
  arising out of an injury sustained by a  public  employee  while  acting
  within the scope of his public employment or duties, where the plaintiff
  seeks  to  recover  for  the  cost  of  medical  care, custodial care or
  rehabilitation services,  loss  of  earnings  or  other  economic  loss,
  evidence shall be admissible for consideration by the court to establish
  that  any  such cost or expense was replaced or indemnified, in whole or
  in part, from a collateral source provided or paid for, in whole  or  in
  part,  by  the  public  employer, including but not limited to paid sick
  leave,  medical  benefits,  death  benefits,   dependent   benefits,   a
  disability  retirement  allowance  and  social  security  (except  those
  benefits provided under title XVIII of  the  social  security  act)  but
  shall  not  include  those  collateral  sources entitled by law to liens
  against any recovery of the plaintiff. If the court finds that any  such
  cost  or  expense  was  replaced or indemnified from any such collateral
  source, it shall reduce the amount of the award by such  finding,  minus
  an  amount equal to the contributions of the injured public employee for
  such benefit.
    2. As used in this subdivision, the term "public employer"  means  the
  state  of New York, a county, city, town, village or any other political
  subdivision of  the  state,  any  public  authority  operating  a  rapid
  transit,   commuter  railroad,  omnibus,  marine,  airport  or  aviation
  facility, a school district  or  any  governmental  entity  operating  a
  public   school,   college  or  university  and  any  municipal  housing
  authority. The  term  "public  employee"  means  any  person  holding  a
  position  by  election,  appointment  or  employment in the service of a
  public employer, while acting within the scope of his public  employment
  or  duties,  whether  or  not  compensated,  or  a  volunteer  expressly
  authorized to participate in a volunteer program sponsored by  a  public

  employer but does not include an independent contractor. The term public
  employee  includes a former employee, his estate or judicially appointed
  personal representative.
    3.  For  the  purposes  of  this subdivision a certified report of the
  actuary of the appropriate public employee retirement  system  shall  be
  admissible evidence of the present value of any death benefit, dependent
  benefit or disability retirement allowance.
    4.  The  provisions  of  this  subdivision  shall  not be construed to
  affect, alter or amend any provisions of the workers'  compensation  law
  or to apply to any claims under such law.
    (c) Actions for personal injury, injury to property or wrongful death.
  In  any action brought to recover damages for personal injury, injury to
  property or wrongful death, where the plaintiff seeks to recover for the
  cost of medical care, dental  care,  custodial  care  or  rehabilitation
  services,  loss  of  earnings  or other economic loss, evidence shall be
  admissible for consideration by the court to  establish  that  any  such
  past  or  future cost or expense was or will, with reasonable certainty,
  be replaced or indemnified, in whole or in  part,  from  any  collateral
  source  such  as  insurance (except for life insurance), social security
  (except those benefits provided under title XVIII of the social security
  act), workers' compensation or employee benefit  programs  (except  such
  collateral  sources entitled by law to liens against any recovery of the
  plaintiff). If the court finds that any such  cost  or  expense  was  or
  will,  with  reasonable  certainty,  be replaced or indemnified from any
  collateral source, it shall reduce the  amount  of  the  award  by  such
  finding, minus an amount equal to the premiums paid by the plaintiff for
  such  benefits for the two-year period immediately preceding the accrual
  of such action and minus an amount equal to the projected future cost to
  the plaintiff of maintaining such benefits. In order to  find  that  any
  future  cost  or expense will, with reasonable certainty, be replaced or
  indemnified by the collateral source,  the  court  must  find  that  the
  plaintiff   is  legally  entitled  to  the  continued  receipt  of  such
  collateral source, pursuant  to  a  contract  or  otherwise  enforceable
  agreement,  subject  only to the continued payment of a premium and such
  other financial obligations as may be required by such agreement.
    (d) Voluntary charitable contributions excluded as a collateral source
  of payment. Voluntary charitable contributions received  by  an  injured
  party  shall not be considered to be a collateral source of payment that
  is admissible in evidence to reduce the amount of any award, judgment or
  settlement.