Help! Billing Medicare HCPCS Code P9603

Hello!

I work at Lab and we send our Phlebotomists to Assisted Living & Nursing homes a few times a week. We are looking into billing to Medicare for the trip the Phlebotomist has to take to the patients and back to the lab. Has anyone billed the HCPCS code P9603 before to Medicare? is this the correct code? Are there any modifiers, etc.? Any help would be greatly appreciated. Thanks

Help! Billing Medicare HCPCS Code P9603