Medicaid Modifier Incomplete Colonoscopy

[jennifer daniels]

Does anyone have any information on the modifier that should be used to bill an incomplete colonoscopy to GA Medicaid? They will not accept 53 on CPT 45378. I would assume 52, but would rather get a second opinion due to different interpretations I've read on 52 vs 53, however when they said 53 is invalid it seems 52 is the only reasonable option.

 

[syllingk]

Our Medicaid here won't accept it either. We have been using -52 modifier instead.