Section 143.10. Contract liabilities; guarantees of certain hospital indebtedness; procedure for ascertaining the amount of such liabilities

The amount of the liability of a municipality arising from  a  guarantee
  authorized  by law pursuant to section seven of article seventeen of the
  state constitution of the principal  of  and  interest  on  indebtedness
  contracted  by an eligible corporation or association for the purpose of
  providing hospital or other facilities for the prevention, diagnosis  or
  treatment  of  human  disease,  pain,  injury,  disability, deformity or
  physical  condition,  and  for  facilities  incidental  or   appurtenant
  thereto, shall be deemed indebtedness in the amount of the face value of
  the  principal  thereof  remaining  unpaid.  If  only  the  interest  is
  guaranteed, then the amount of the liability arising therefrom shall  be
  indebtedness  in  the amount of the commuted value of the total interest
  guaranteed and remaining unpaid, calculated on the basis  of  an  annual
  interest rate of five per centum.