L11: Other acantholytic disorders
L11.0: Acquired keratosis follicularis
Every hair is anchored in a small bulb, the hair follicle. Sebaceous glands are usually attached to these hair follicles. The sebaceous glands produce an oily substance for the skin called sebum. Sebum prevents the skin from drying out.
Your hair bulbs are blocked in some places. The sebum remains in the skin and the bulbs are expanding. The affected areas of the skin usually feel dry and rough. The precise cause of this skin disorder is unknown.
The bumps on the surface of the skin can be skin-colored, whitish, or reddish. These skin areas resemble the goose flesh caused by being cold. It is usually the buttock, and the outsides of the upper arms and thighs that are affected.
This skin disorder may be perceived as a cosmetic nuisance, but it usually causes no further damage to the body. The patient may lose the small, delicate hairs in the areas affected. Occasionally the dark, thick hairs, for example, in the eyebrows or the forehead, fall out.
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.