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I81

Billable

Portal vein thrombosis

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Blood clot formation in the portal vein, which carries blood from the digestive organs to the liver, potentially causing serious complications.

Coding Tips

  • •Document whether thrombosis is acute or chronic; this may affect treatment and prognosis documentation
  • •Investigate underlying causes such as cirrhosis, malignancy, or hypercoagulable states for complete clinical picture

Excludes 2 — Not included here, may code separately

  • hepatic vein thrombosis (I82.0)
  • phlebitis of portal vein (K75.1)

Code Hierarchy

└I81Portal vein thrombosis
└I81Portal vein thrombosis

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