B36.1: Tinea nigra

Many different germs, mainly bacteria, are found on normal skin. There is normally a certain balance between them. Many of these germs are also beneficial for the skin.

Certain fungi have spread on your skin. This usually affects the inner surfaces of the hands and the soles of the feet. The fungi produce a dark colorant. This is why the affected skin usually turns brown or black. This skin condition is usually harmless.

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.