D-HI should be established in accordance with the following rules:
         
            - 
               
                  • 
                     If the individual was entitled to DIB within 5 years (60 months) before the month
                        of current onset (i.e., no DIB waiting period would have been required had section
                        332 been in effect at the time), all months beginning with the first month throughout
                        which the individual was disabled up to and including 4/83 are deemed to be months
                        of DIB entitlement. Also, months in the prior period may be counted in determining
                        when the 24-month D-HI qualifying period requirement is met. D-HI begins with the
                        person's 25th month of deemed and actual entitlement to DIB but no earlier than 5/1/83.
                      
 
 
- 
               
                  • 
                     If current onset is more than 5 years after a prior period of DIB entitlement, the
                        individual must begin a new 24-month D-HI qualifying period. Also, since a new 5-month
                        DIB waiting period would have been required had section 332 been in effect prior to
                        5/1/83, the first month of deemed entitlement is the sixth month throughout which
                        the individual is under a disability. D-HI begins with the first day of the 30th month
                        throughout which the individual was under a disability, but no earlier than 5/1/83.
                      
 
 
Although Medicare could not be established prior to 5/1/83, months prior to 5/83 in
            which the individual was disabled and would have been entitled to DIB had section
            332 been in effect prior to 5/1/83 may be deemed to be months of DIB entitlement for
            purposes of determining when the 24-month D-HI qualifying period requirement was met.