Modifier 59 required for conscious sedation?

[RobertW]

Procedure is 43239 (upper endoscopy) with conscious sedation 99152. I've been told 99152 requires modifier 59 (distinct procedure). Is this correct? It doesn't seem necessary.

 

[RGibson1106]

in practicode (the AAPC Internship) we did not use the modifier 59 perhaps its the same as the modifier 51 that this exempt from. Hope this helps