--the DQ8 genetic background can also be associated with frank celiac, and there is some evidence from the work of Dr. Hadijvassiliou that the much rarer DQ1 background can be linked to non-gut manifestation of gluten sensitivity--in particular, neurologic ones (peripheral neuropathy, ataxia).

And, since a rash was mentioned, one of the most obvious non-gut signs of celiac is the pustular rash know as dermatitis hepatiformis:

http://emedicine.medscape.com/article/1062640-overview

http://www.webmd.com/skin-problems-a...-herpetiformis