Modifier FX

X-ray taken using film

Instructions

When billing for an X-ray service that was done using film, append the FX modifier to the appropriate code.

Correct Use

  • Use only when the X-ray is taken by film
    • A payment reduction of 20% will be applied to the technical component
    • Regardless of where stored

Incorrect Use

  • Not to be used when the X-ray is taken with digital radiography

Coding Example

  • Chest X-ray (CPT Code 71010)
Date Treatment Code/Modifier Billed Allowed
5/2/17 Chest X-ray single view 71010 26 10.00 9.54
5/2/17 Chest X-ray single view 71010 TC FX 16.00 15.20
3.04 (20%)
12.16

 

Date Treatment Code/Modifier Billed Allowed
5/2/17 Chest X-ray single view 71010 FX 26.00 24.74
3.04 (20% of the TC)
21.70

 

Resources

 

Last Updated Mon, 31 Oct 2022 18:39:08 +0000