Hidden Disability Signs Needed

https://torontobraininjuryblog.com/2015/03/26/is-it-the-right-time-for-a-hidden-disability-symbol/

This is a wonderful idea. We need this now, but add to it other hidden disabilities, perhaps in  coded number format to signify the condition or disability. however some people may not be comfortable disclosing what sort of disability they have.
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