We are a group of Hospitalists where certain providers cover the night shift. Hospitalist Dr. A saw Medicare patient while in the ER area at 4:30am and documented H&P meeting a 99222 LOS. ER doc called other hospitalist Dr. B in our group stating patient needed to be admitted later that morning. Dr. B placed admission order @ 11:30 am. Dr. A added addendum to H&P later that afternoon. Dr. B did not see patient that day, just wrote brief note stating he admitted patient, but did follow patient on following days of admission episode.
We are debating on appropriate use of the AI modifier for the initial visit
Should 99222-AI be billed under Dr. A because we are a group practice?
Should 99222 with no modifier be billed under Dr. A since he didn't write the order?
Should 99222-AI be billed under Dr. B because he wrote the order?
Appreciate any wisdom you can provide.