Hi,
Can anyone advise on how you which CPT code should be used to bill AWV for Medicare Fee for Service for the following situation?

CPT code G0439 is used for Subsequent AWV after 12 months of Initial AWV. However, what if the patient comes 36 months after their initial AWV, which CPT code should be used for billing, G0438 or G0439?

Any advise is appreciate it.
Thank you.