Consult codes-e/m visit

When a medicare pt is treated in a nursing home or in the hospital and we use the cross walk and switch from consult to E/M visit should we be using the modifer A1.
To show primary care doctor?

Apr 7th, 2011 - nmaguire 2,606

re: CONSULT CODES-E/M VISIT "AI"

The primary purpose of this modifier is to identify the principal physician of record on the initial hospital and initial nursing home visit codes.