Wiki KX modifier - Can anyone help

[Griffith_Tiffany]

Can anyone help with clarification on this modifier?
recently we billed out a 33208 to UHC and they denied our claim because of the KX modifier not being added.
Any information would be a great help!

 

[TWinsor]

To my understanding the KX modifier is used to when the patient has "non-reversible" bradycardia. Here is MLN that might help.

https://www.cms.gov/Outreach-and-Edu...ads/MM8525.pdf