34 Pa. Code § 127.470 : LABOR AND INDUSTRY — BUREAU OF WORKERS' COMPENSATION — Workers' Compensation Medical Cost Containment — MEDICAL TREATMENT REVIEW —INITIAL REQUEST — Duties of reviewers-issues reviewed

(a) Reviewers shall decide only the issue of whether the treatment under review is reasonable or necessary for the medical condition of the employe.
(b) Reviewers shall assume the existence of a causal relationship between the treatment under review and the employe's work-related injury. Reviewers may not consider or decide issues such as whether the employe is still disabled, whether maximum medical improvement has been obtained, quality of care or the reasonableness of fees.

34 Pa. Code § 127.470