After you are approved for Social Security disability (or SSI) benefits, your case will be reviewed from time to time to see if you still qualify for benefits. If you've returned to work or your condition has improved enough medically so that you can go back to work, you could lose your benefits. If you receive a notice of cessation of benefits, you can appeal the decision to a disability hearing officer (DHO) and ask that your benefits be continued while you appeal. The CDR appeal process is a different appeal process than the one used for initial applications for disability.
This disability re-evaluation process is called a continuing disability review (CDR).