31 Pa. Code §154.12(a)

(a) Managed care plans shall permit enrollees direct access to obstetrical and gynecological services for maternity and gynecological care, including medically necessary and appropriate follow-up care and referrals, for diagnostic testing related to maternity and gynecological care from participating health care providers without prior approval from a primary care provider. No time restrictions shall apply to the direct accessing of these services by enrollees.