g. Personal injury protection coverage benefits pursuant to section 4 of P.L. 1972, c.70 (C. 39:6A-4 ) and medical expense benefits pursuant to section 4 of P.L. 1998, c 21 (C. 39:6A-3.1 ) or emergency care medical expense benefits payable under a special automobile insurance policy pursuant to section 45 of P.L. 2003, c 89 (C. 39:6A-3.3 ) shall be overdue if not paid within 60 days after the insurer is furnished written notice of the fact of a covered loss and of the amount of same. If such written notice is not furnished to the insurer as to the entire claim, any partial amount supported by written notice is overdue if not paid within 60 days after such written notice is furnished to the insurer. Any part or all of the remainder of the claim that is subsequently supported by written notice is overdue if not paid within 60 days after such written notice is furnished to the insurer; provided, however, that any payment shall not be deemed overdue where, within 60 days of receipt of notice of the claim, the insurer notifies the claimant or his representative in writing of the denial of the claim or the need for additional time, not to exceed 45 days, to investigate the claim, and states the reasons therefor. The written notice stating the need for additional time to investigate the claim shall set forth the number of the insurance policy against which the claim is made, the claim number, the address of the office handling the claim and a telephone number, which is toll free or can be called collect, or is within the claimant's area code. Written notice to the organization administering dispute resolution pursuant to sections 24 and 25 of P.L. 1998, c 21 (C. 39:6A-5.1 and C. 39:6A-5.2 ) shall satisfy the notice request for additional time to investigate a claim pursuant to this subsection. For the purpose of determining interest charges in the event the injured party prevails in a subsequent proceeding where an insurer has elected a 45-day extension pursuant to this subsection, payment shall be considered overdue at the expiration of the 45-day period or, if the injured person was required to provide additional information to the insurer, within 10 business days following receipt by the insurer of all the information requested by it, whichever is later.
For the purpose of calculating the extent to which any benefits are overdue, payment shall be treated as being made on the date a draft or other valid instrument which is equivalent to payment was placed in the United States mail in a properly addressed, postpaid envelope, or, if not so posted, on the date of delivery.