No statute of limitations or similar statute or the doctrine of laches may bar the recovery of costs of care furnished under this chapter. It is not necessary to bill currently any person for those accounts determined to be inactive, currently uncollectible, or for which it has been determined as provided by law that there is no present ability to pay. Current billings may be made for amounts chargeable by law or for which it has been determined the responsible party presently has an ability to pay, but the manner of billing may not affect the total amount due. This section applies to claims for the cost of care furnished on or after July 1, 1961.
N.D.C.C. § 25-04-15.1