My doctor wanted to charge a 99222 on a patient that he treated in the E.R. Our doctors are pulmonologists and are not E.R. doctors. He also inserted a trach at the same time. The hospital billed the POS as Emergency. I'm trying to find out since our doctor is a pulmonologist, would he get paid if I bill a 99283 ER mod visit or does he have to be an E.R. doctor to bill this charge? Or, would a 99235 observation or inpatient moderate E/M be better since he is not an E.R. doctor?? I know when a pt is emergency he is neither considered in pt or observation. Please help!