If your payor allows, the second X-Ray 73030 would require 77 modifier with the 26 modifier. Assuming your provider is doing this to assess post reduction.
However, if it is a Medicare patient or payor that follows NCCI guidelines, Chapter 9 C.3 states the following "
When a comparative imaging study is performed to assess potential complications or
completeness of a procedure (e.g., post-reduction, post-intubation, post-catheter
placement, etc.), the professional component of the CPT code for the post-procedure
imaging study is not separately payable and shall not be reported. The technical
component of the CPT code for the post-procedure imaging study may be reported.