E/M Visit
Maine Subscriber
Test your coding knowledge. Determine how you would code this situation before looking at the box below for the answer.
Answer: The first question to ask is: Who performed the service?
If a nurse administered the oxygen and took the vital signs and the physician was merely present in the office, it would be billed as 99211 (office or other outpatient visit for the evaluation and management of an established patient, that may not require the presence of a physician. Usually, the presenting problem(s) are minimal ...). This code lists 5 minutes as a typical amount of time for the service. 
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