Tennessee Subscriber
Answer: Because the patient was a Medicare patient, you should report J7040 (Infusion, normal saline solution, sterile [500 ml = 1 unit]) or J7050 (Infusion, normal saline solution, 250 cc) and G0345 (Intravenous infusion, hydration; initial, up to 1 hour). If the time extends for more than one hour, you would report G0346 (...each additional hour, up to eight [8] hours [list separately in addition to code for primary procedure]).
Also, if the cardiologist provided a separate E/M service, you should append modifier -25 (Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure or other service) in addition to codes G0345-G0346. For an E/M service provided on the same day, you do not need a different diagnosis.
Non-Medicare: If this patient is not a Medicare patient, you would report the same HCPCS code for the saline supply but use 90780 (Intravenous infusion for therapy/diagnosis, administered by physician or under direct supervision of physician; up to one hour) for the first hour. If the time extends longer, you would use +90781 (... each additional hour, up to eight [8] hours [list separately in addition to code for primary procedure]). If the cardiologist provided a separate E/M service, you would also apply modifier -25 in addition to 90780-90781.
Keep in mind: The cardiologist does not need to be in constant attendance for the duration of the procedure; he just needs to provide direct supervision after the equipment has been set up. In other words, his staff can personally supervise.
For more info, see www.cms.hhs.gov/medlearn/matters/mmarticles/2005/MM3631.pdf.