Indiana Code Title 12. Human Services § 12-15-13-6

Sec. 6. (a) Except as provided by IC 12-15-35-50, a notice or bulletin that is issued by:

concerning a change to the Medicaid program, including a change to prior authorization, claims processing, payment rates, and medical policies, that does not require use of the rulemaking process under IC 4-22-2 may not become effective until thirty (30) days after the date the notice or bulletin is communicated to the parties affected by the notice or bulletin.

(b) The office must provide a written notice or bulletin described in subsection (a) within five (5) business days after the date on the notice or bulletin.

(c) If the office, a contractor of the office, or a managed care organization does not comply with the requirements in subsections (a) and (b):