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Catheter Placed Into The Liver's Main Vein

Maine rates for HCPCS 36481

Threads a catheter through the skin and into the portal vein, the large vein that carries blood from the intestines into the liver. This gives direct access for measuring the pressure inside that vein, taking blood samples from it, or delivering treatment within it. Imaging is used to guide the needle and catheter into position.

Rates data updated July 2026.

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