gene c.3140-26a

I just found out the other mutated gene that my 2 month old son has. He has the deltaF508 and gene c.3140-26a. I think this gene falls into the Class V cartegory but I am not positive. I am wondering if anyone else has experienced this combination or can help shed some light on what Class V is.
Source: Cystic Fibrosis Newly Diagnosed Forum - Category: Respiratory Medicine Authors: Tags: Newly Diagnosed Source Type: forums