Published Utilization and Treatment Guideline Rule Change
ARM 24-29-343
The Montana Guidelines establish evidence-based utilization and treatment guidelines for
primary and secondary medical services for workers' compensation injuries and occupational
diseases, as authorized by § 39-71-704, MCA, and incorporated by reference in ARM
24.29.1591. The Guidelines include General Guideline Principles at the beginning of each
chapter, which are designed to adequately and consistently address the functional
improvement goals of an injured worker.
The Guidelines are applicable to all medical services provided on or after July 1, 2011. (The
Guidelines establish a presumption of compensability for injuries and occupational diseases
occurring on or after July 1, 2007. For those occurring on or before June 30, 2007,
treatment in accordance with the guidelines constitutes reasonable primary or secondary
medical treatment.)
Prior authorization is not required for treatment within the Guidelines except where
indicated or for “not recommended”. Prior authorization may be obtained in specific
cases for treatments outside the guidelines as provided by ARM 24.29.1593. Disputes
regarding treatment and prior authorization may be brought to the Department under the
Independent Medical Review process in ARM 24.29.1595. Managed Care Organizations and
Preferred Provider Organizations are required to follow the Guidelines, but the Guidelines
do not alter their payment agreements.
The purpose of the Guidelines is to assist injured workers in receiving prompt and
appropriate care, assist injured workers in stay-at-work/return-to-work options, assist
clinicians in making decisions for specific conditions, and help insurers make reimbursement
determinations. Although the primary purpose of the guidelines is advisory and educational,
the guidelines are enforceable for payment purposes. The department recognizes that
acceptable medical practice may include deviations from these guidelines, as individual
cases dictate. Therefore, these guidelines are not relevant as evidence of a provider's
legal standard of professional care.