Comment by ethbr1

The problem is that the paper form is the interface, because the ecosystem was designed around it.

10 years ago or so, I asked a health insurance company why a specific digital form could only list up to 16 diagnostic codes (otherwise a duplicate with the additional needed to be created).

They thought about the question for a second, then said that's how many were on the paper form the digital system had been created from (35+ years ago).