The following information appeared on, cms.gov
CMS created a new modifier—Modifier “FY” (X-ray taken using computed radiography technology/cassette-based imaging) to be reported on claims to identify those HCPCS codes that describe X-rays taken using CR technology. The payment reduction (7% for 2018) will be taken when this modifier is reported with the applicable HCPCS code(s) to describe imaging services that are taken using CR technology.