L54: Erythema in diseases classified elsewhere

L54.0: Erythema marginatum in acute rheumatic fever

The first sign of this skin condition is pinky-red patches on the skin that are slightly higher than the surrounding skin. These patches quickly get bigger and lighter again in the middle. This causes unusual patterns to develop on the skin.

The pinky-red patches of skin are mainly found on the upper body. However, it can also affect other areas of the body such as arms and legs.

The cause of this skin condition is another disease caused by certain bacteria. These bacteria cause throat inflammation or tonsil inflammation. The body’s defense system fights the bacteria with certain antibodies. However, these antibodies can also attack other tissue in the body.