Wiki Denial for 69801/50 modifier

Not an ENT coder, but since no one else chimed in, I will. -50 does show as a valid modifier for 69801. My guess is either:
1) The carrier policy for bilateral is to bill twice, once with -RT and once with -LT. Not for this procedure specifically, but I have come across carriers with this policy.
2) You are not submitting diagnoses that justify bilateral. ie - you are using unspecified instead of the separate codes for right & left (if they exist for the problem).
 
I would appeal the denial and show the payer that the 50 modifier is a proper modifier for 69801 when performed on both ears. Or like our very kind gyn onc visitor has recommended, ask the payer in the appeal if they would like you to bill 69801 twice with lateral modifiers or would they like you to bill it with the 59 on the second side or would they like the XS for separate structure on the second side.
 
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