L52: Erythema nodosum

Beneath the skin is fatty tissue. This fatty tissue has become inflamed in your case. As a result, nodules have formed beneath your skin. These nodules are often purplish and may be sore. You may also have painful joints and a high temperature. The lower legs are often affected, and sometimes the arms, too.

The inflamed fatty tissue is usually an indicator of another disorder. The nodules often appear after contact with pathogens or when there is a disorder in the body’s own immune system. Medication can also sometimes trigger an inflammation of the fatty tissue.

The nodules usually clear up after a few weeks, leaving no scars. Once the nodules have healed, the skin in those areas is often brown. The nodules beneath the skin sometimes reappear.

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.