Section 8CC. No contract between a subscriber and the corporation under an individual or group hospital service plan which is delivered, issued or renewed in the commonwealth shall restrict or discontinue coverage for medically necessary hypodermic syringes or needles to an individual or group subscribers within the commonwealth and to a group subscriber having a principal place of employment within the commonwealth, notwithstanding section 27 of chapter 94C. The term ”medical necessity” shall be construed in accordance with the guidelines set forth in subsection (b) of section 16 of chapter 176O.