Diagnosis Pointer limit

An article submitted to us by one of our clients states that an electronic (5010) file should allow for the use of 8 diagnosis pointers per line item: http://codapedia.com/article_668_CMS-1500-form-revised-to-fit-more-diagnosis-codes-less-patient-demographic-information.cfm

I have searched many resources, including 5010X222 837 Professional specs and cannot find anything in writing that states more than four pointers per procedure/line item can be used. Is it possibly something that is in reference to institutional claims?

Thank You!
Tammy Trent

re: Diagnosis Pointer limit

I cannot produce a statement saying this but actually I think it is 12 diagnosis now.