CCR 9785(a)(4) “Medical determination” means, for the purpose of this section, a decision made by the primary treating physician regarding any and all medical issues necessary to determine the employee's eligibility for compensation. Such issues include but are not limited to the scope and extent of an employee's continuing medical treatment, the decision whether to release the employee from care, the point in time at which the employee has reached permanent and stationary status, and the necessity for future medical treatment.