Wiki Help with a modifier/ Dx

[bella2]

We have Doctor that was performing an eye procedure when a block was administed to the eye the paatient had a retrobulbar hemorrhage, so the surgery wasn't performed. I was looking for guidance as to which modifier to use 73 or 74 and a ICD-9 code for the hemorrhage ???
Any advice would be greatly appreciated,
Bella

 

[elenax]

I would use modifer 74 with a complication diagnosis

 

[bella2]

Thanks