A "disability denial" is an administrate decision and notice of that denial decision sent to an applicant or claimant pursuant to his application for disability benefits. A decision notice will be sent by the Social Security to an applicant for benefits. The disability applicant would be sent a letter referred to generally as a social security "decision notice letter," and in the case of a "benefits denial," that letter is often referred to as a "denial letter." The denial letter will then explain the decision to deny benefits and often detail the steps necessary to appeal the denial of benefits decision. An appeal of a denial of benefits must be in writing and must be made within sixty day of receipt of the "denial letter."