inquiry about us visa denial code

[immihelp]

good day

what are other codes use by consulate on denialing the visa i know 1 is 214b...i already the discription of this codes on the web..may i ask is this codes exist on visa denail 6nb?or other gnb..a friend of mine asking to know this if i can find the answere on the internet...

hope you could help analyst the code 6nb or gnb codes?

thank you very much

[immihelp]

Read https://www.immihelp.com/usa-visa-refusal-and-reapplication-tips/