Does anyone know how long after the operation can the surgeon make an addendum to the operative note and it still be legal to bill?
I have a surgeon who operated on a patients left foot but documented right foot…he has added an addendum correcting the laterality. It has not yet been billed but is more than 30 days past the date of service [March DOS].

My colleague and I have a difference of opinion whether it is fraudulent / legal to bill?
Any thoughts or references are much appreciated…