Are assists exempt of global period?

lydiachitwood

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Another coder states that when we perform a Cardiac surgery and use assists, that the assists are exempt of the global period and can bill for follow up care during the post op. She states this is per CMS guidelines.

The only guidelines she provided are the fact that when billing for a surgery during a global the primary surgeon would use mod 78/79 but the assistant surgeon only bills 80...78/79 being appended to the 80 makes the claim unprocessable.

Is this the understanding and I need to adjust my thinking?
 
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