89 Ill. Adm. Code 140.25
Overpayment or Underpayment of Claims
Section 140.25 Overpayment
or Underpayment of Claims
a) When the Department, the provider, or the designated alternate
payee has determined that an overpayment has been made, the provider or the
alternate payee shall reimburse the Department for the overpayment. The
Department shall recover overpayments made to or on behalf of a provider that
result from improper billing practices. Recovery may occur by setoff,
crediting against future billings or requiring direct repayment to the
Department.
b) When
a provider believes it has received an underpayment for services, it may
request Department review. The request must be received by the Department
within 12 months after the date payment was authorized. If the review reveals
an underpayment was made, the Department shall pay the additional amount due.
If the review reveals an overpayment was made, the provider, or the designated
alternate payee, shall refund the amount of the overpayment.
c) When
a provider operated by a unit of local government with a population exceeding
3,000,000, when local government funds finance federal participation for claims
payment, believes it has received an underpayment for services, it may submit
an adjustment to void and re-bill the claim. The request must be received
within one year after the date payment was authorized.
d) For
underpayments, the Department will not adjust claims received beyond the
applicable timeframes identified in subsections (b) and (c). The review
procedures provided for in this Section may not be used to submit any new or
corrected information that was required to be submitted by a specific date in
order to qualify for a payment or payment adjustment.