ICD-Code I81: Portal vein thrombosis

Your portal vein is blocked by blood clots.

The portal vein collects blood from the gastrointestinal area and transports the blood to the liver.The liver is an important organ on the top right of the abdomen. For example, it helps with blood clotting and detoxifying the body. Nutrients from food are processed in the liver.The portal vein carries nutrients to the liver.

Blood clots occur when various components of the blood clump together. A blood clot can block a blood vessel. Different reasons can cause blood clots to form. For example, if the liver hardens, the blood is unable to flow into the liver properly. As a result, blood clots can form more easily in the portal vein. Some people are prone to blood clots. This is then congenital or caused by another disorder.

When the portal vein is blocked by a blood clots, symptoms may occur. You may experience abdominal pain or nausea. It is also possible that you will have no symptoms at all initially. If the portal vein is blocked by blood clots for an extended period, blood may be unable to flow properly out of the gastrointestinal area. The blood then does not flow through the liver, but through other veins to the heart. These veins are located in the oesophagus or stomach, for example. These veins may become wider as more blood flows through them.

Additional indicator

On medical documents, the ICD code is often appended by letters that indicate the diagnostic certainty or the affected side of the body.

  • G: Confirmed diagnosis
  • V: Tentative diagnosis
  • Z: Condition after
  • A: Excluded diagnosis
  • L: Left
  • R: Right
  • B: Both sides
Further information

Note

This information is not intended for self-diagnosis and does not replace professional medical advice from a doctor. If you find an ICD code on a personal medical document, please also note the additional indicator used for diagnostic confidence.
Your doctor will assist you with any health-related questions and explain the ICD diagnosis code to you in a direct consultation if necessary.

Source

The explanation of the ICD code was provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).