IN Code §27-8-5.7-6(b-c)

(b) If:

(1) an insurer fails to pay or deny a clean claim in the time required under subsection (a); and

(2) the insurer subsequently pays the claim; the insurer shall pay the provider that submitted the claim interest on the accident and sickness insurance policy allowable amount of the claim paid under this section.

(c) Interest paid under subsection (b):

(1) accrues beginning:

(A) thirty-one (31) days after the date the claim is filed under subsection (a)(1); or

(B) forty-six (46) days after the date the claim is filed under subsection (a)(2); and

(2) stops accruing on the date the claim is paid.