L85.0: Acquired ichthyosis

Normally, the body forms a thicker skin on areas of the skin that are subject to pressure over a long period of time. This thickened skin is called callused skin. Callused skin is tougher than normal skin and is supposed to protect the relevant places from further pressure.

Various diseases make the body form too much horny skin. The skin is thickened and dry in the affected areas and looks similar to fish scales.

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