No special suffix and/or subscripts are provided for the following: benefits at age
            72 based on transitional insured status, Supplementary Medical Insurance (SMI) where
            there is entitlement to a monthly benefit or Hospital Insurance Benefits (HIB), and
            HIB where there is entitlement to a monthly insurance benefit. In these cases other
            means of identification, which are provided in the file, are deemed adequate for operating
            purposes.