The TSA provides a disability notification card that travelers with disabilities or medical conditions can present at the TSA screening checkpoint to describe their disability.

Here Are Some Things You Should Do When Traveling with a Disability:

• Inform the airline, hotel, and any other service providers of your disability ahead of time.
• Call TSA Cares ((855) 787-2227) at least 72 hours before your flight to ask any questions you may
  have.
• Pack everything you might need in a carry-on bag, including any assistive devices or
  medications.

Here are some helpful links

for more information on what the TSA does for travelers with disabilities and what you should do:

– TSA: Passenger Support