(1) The personal representative may mail a notice to any claimant stating that the claim has been disallowed. If the personal representative fails to mail notice to a claimant of action on his or her claim within sixty-three days after the time for original presentation of the claim has expired, the claim shall be deemed to be allowed. After any claim has been deemed to be allowed or disallowed, the personal representative may change the status of the allowance or disallowance of the claim by notice to the claimant; except that the personal representative may not change a disallowance of a claim after the time for the claimant to file a petition for allowance or to commence a proceeding on the claim has run and the claim has been barred. Every claim that is disallowed in whole or in part by the personal representative is barred so far as not allowed unless the claimant files a petition for allowance in the court or commences a proceeding against the personal representative not later than sixty-three days after the mailing of the notice of disallowance or partial allowance if the notice warns the claimant of the impending bar.

(2) Upon the petition of the personal representative or of a claimant in a proceeding for the purpose, the court may allow in whole or in part any claim or claims presented to the personal representative or filed with the clerk of the court in due time and not barred by subsection (1) of this section. Notice in this proceeding shall be given to the claimant, the personal representative, and those other persons interested in the estate as the court may direct by order entered at the time the proceeding is commenced.

(3) A judgment in a proceeding in another court against a personal representative to enforce a claim against a decedent's estate is an allowance of the claim.

(4) Unless otherwise provided in any judgment in another court entered against the personal representative, allowed claims bear interest at the legal rate for the period commencing sixty-three days after the time for original presentation of the claim has expired unless based on a contract making a provision for interest, in which case they bear interest in accordance with that provision.