For ancillary services, such as lab, X-ray services and diagnostic tests, enter the appropriate revenue code(s) in form locator 42 and the corresponding CPT code(s) in form locator 44.
For ancillary services, such as lab, X-ray services and diagnostic tests, enter the appropriate revenue code(s) in form locator 42 and the corresponding CPT code(s) in form locator 44.