Please note this question was answered in 2019. The coding advice may or may not be outdated.
Modifier 59 added to 99152 while endoscopy is performed
Date: Feb 25, 2019
Question:
Hospital outpatient coding. Is it correct to append a -59 modifier to conscious sedation code 99152 while it is performed during a colonoscopy or EGD? There are quite a few differing opinions on this.
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