(a) The cost of blood, plasma or related products provided by a hospital or by a certified independent health facility are not eligible for reimbursement if the costs of such blood products are included in the financial statement used as the basis for determination of the facility's medical assistance rate.

(b) The cost of blood, plasma or related products when not available without charge or when not provided for as in subdivision (a) of this section, may be eligible for reimbursement if provided on the written order of a physician.