The doctors are admitting the patients to the hospital with an inital OBS code-99220, followed by OBS sub. visit codes- 99214. Two or three days later, they change the status to an Inpatient code-99222 or 99223. I have been told by the practice manager the Inpatient and OBS codes can't be mixed on a continuous hospital visit, so I am having to go back and change the OBS admit and OBS sub visit codes to an Inpatient admit-99223 and an inpatient sub visit code-99232. Is this correct? Does the level of severity on the OBS codes stay the same on the Inpatient codes? Example: 99220 same as 99223; 99214 same as 99232. Also if an OBS admit stays less then 23 hours, it must be changed to an admit/discharge same day-99235. How do I determine the level of severity, by the H&P or the D/C summary.
Thanks for your help.
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