Causes. Leg length discrepancies can be caused by poor alignment of the pelvis or simply because one leg is structurally longer than the other. Regardless of the reason, your body wants to be symmetrical and will do its best to compensate for the length difference.
Date of Onset. When the Social Security Administration (SSA) refers to a disability applicant's Date of Onset, they are referring to the date that a Social Security Disability applicant became disabled. When you fill out your Social Security Disability claim forms, you will be asked to provide the date your disability began.
And for Social Security Disability Insurance (SSDI) benefits, there is five-month waiting period, so you are only eligible to receive back pay for any delay beyond the wait period (see âWhen Payments Will Begin,â below, for further information).here is a mandatory wait period that is applied to SSDI claims. You must be disabled for five months after your disability onset date before you can start receiving SSDI cash payments. You will receive disability benefits starting at the beginning of the sixth month.