Is dyslexia regarded as a severe disability for academic applications? For the National Science Foundation Graduate Research Fellowship Program (NSF GRFP) application they ask:

Other serious disability related to a physical, mental, or emotional
condition is included in my disability
(Please specify. Cannot exceed 255 characters.)

Here I listed dyslexia and the academic accommodations I receive. Is this appropriate? What do they mean by &quot;Severe Disability&quot;.
My case is particularly harsh. In my Statement of Purpose I briefly talk about my history of overcoming this as well as how learned to capitalize on my other strengths to compensate for this deficiency. This is particularly important to me, but might not be something that should be mentioned.
This could apply to other academic applications. Is this something that should be mentioned on a PhD application, or is it best to avoid this topic?
Dyslexia is widely recognized as a disability.
Deciding if dyslexia is &quot;severe&quot; is a matter of opinion.  Only one person has a well-informed opinion about the severity of your dyslexia: you.  If you think it is severe, no reasonable person will question it.
Your strategy of mentioning your disability in the context of how you were successful overcoming it is a good strategy.