ALS Disability Insurance Access Act of 2017 This bill amends title II (Old Age, Survivors, and Disability Insurance) of the Social Security Act to eliminate the five-month waiting period for disability insurance benefits for individuals with amyotrophic lateral sclerosis (a progressive neurodegenerative disease, also known as Lou Gehrig's disease, that affects nerve cells in the brain and spinal cord). Under current law, individuals must wait five months after becoming disabled before their disability insurance benefit payments can begin.