I80.3: Phlebitis and thrombophlebitis of lower extremities, unspecified

Veins are blood vessels that transport the blood back to the heart. If veins get blocked by blood clots, the blood is unable to flow properly. Then, as a result of the blocked veins, the skin can turn red and swell up.

There are various reasons for blood clots forming. If someone is unable to move their legs properly, or if the vascular wall has been injured, a blood clot can form more quickly. Some people are prone to blood clots. This is then congenital or caused by another disorder. Inflammations in the veins can also favor the formation of blood clots.

Veins can become inflamed for different reasons. Veins can become inflamed by pathogens, for example.

Patient Disclaimer

The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.

If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.

For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.