How does one obtain X12 EDI specs? -

How does one obtain X12 EDI specs? -

specifically, 835 , 837, , more specifically, lists of various status codes , meanings.

i've found couple of commercial sources via google , duckduckgo. sources freely available?

thanks.

the specifications copyrighted disa or wpc (in case of hipaa standards -- augmented version of base of operations x12 standards) , available purchase them.

as axel suggested more popular transactions sets can obtain implementation guides net, , these have need.

there not machine readable versions of these specifications freely available, official versions cost great deal.

edi x12