as is not 'seen'...it's a diagnostic evaluation, based on a point system...
(if he won't diagnose because Nsaids don't remove your complaints, he's wacked...it's only one point- given if
Nsaids work, not taken away if they don't work)

many 'old fashioned' rehumy's wont say AS without deterioration of SI joint along with other points.
you have the right to ask 'what diagnostic criteria are you using ?' there are ten or so criteria available

many people have the problem of waiting years to get dx...many dctors don't listen.
fish are jumping and the cotton is high