You may determine a closed period of disability when:
         
            - 
               
                  • 
                     the claimant was disabled for at least 12 continuous months or was blind (no duration
                        requirement), and
                      
 
 
- 
               
                  • 
                     disability or blindness ceased after the month of filing, but prior to the date of
                        adjudication. Apply the medical improvement review standard in determining when disability
                        ceased.
                      
 
 
REMINDER: If the claimant’s disability ceases prior to the application effective date, there
            is no entitlement to supplemental security income benefits for a closed period of
            disability. Retroactivity does not apply to Title XVI claims.
         
         NOTE: If the claimant performs substantial gainful activity (SGA) after the month of filing,
            but prior to adjudication, the disability determination services cannot make a closed
            period of disability determination based solely on SGA. Establish the established
            onset date and complete an assistance request to the field office to investigate the
            work issue for a work continuing disability review.
         
         See details:
         
         DI 13010.010 Handling Events That May Require a Work Continuing Disability Review (CDR).