PER02 in X12 837P: A Field Guide to Name
PER02 is one of the few fields in an 837P that's genuinely free text, which means it's also one of the few fields where a test suite's assumptions about length, punctuation, and format actually get checked.
PER02 is the second element of the PER segment in an X12 837P claim — a free-text name identifying the specific person or department associated with the contact function coded in PER01.
What goes in this field
Example
PER02 value BILLING DEPT — a department name rather than an individual, in this synthetic claim.
Where this trips people up
Test data generators tend to pick short, clean names like BILLING DEPT and never test longer strings, embedded punctuation, or names that push close to a trading partner's practical field-length limit. A payer system that silently truncates PER02 past a certain length can produce a claim record that looks fine in the 837P but shows a garbled contact name on the payer's end, and that gap only surfaces once truncation happens in production.