B36: Other superficial mycoses
B36.0: Pityriasis versicolor
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.
There are also usually certain yeasts on the skin, particularly on the chest and back. These yeasts feed on the fat on the skin and they are usually harmless. If the skin is very greasy and moist, the fungi can multiply rapidly. Oily toiletries or heavy sweating, for example, can favor this reproduction.
In your case, these yeasts have multiplied so much that you can see dark spots on your skin. These dark spots can sometimes spread across a large area of skin. In those areas the skin is often flaky. The skin is sometimes itchy.
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.