N.J. Stat. § 17B:27-46.1a
Every group health insurance policy providing hospital or medical expense benefits delivered, issued, executed or renewed in this State, or approved for issuance or renewal in this State by the Commissioner of Banking and Insurance on or after the effective date of this act, shall provide benefits, following a mastectomy on one breast or both breasts, for reconstructive breast surgery, surgery to restore and achieve symmetry between the two breasts, and the costs of prostheses and, under any policy providing outpatient x-ray or radiation therapy, the costs of outpatient chemotherapy following surgical procedures in connection with the treatment of breast cancer shall be included as a part of the outpatient x-ray or radiation therapy coverage. The provisions of this section shall apply to all policies in which the insurer has reserved the right to change the premium. Such benefits shall be provided to the same extent as for any other sickness under the policy.
N.J.S. § 17B:27-46.1a