M94: Other disorders of cartilage

M94.1: Relapsing polychondritis

Cartilage occurs in joints, in particular. The bones in a joint are covered with cartilage. When the joint is moved, the cartilage prevents the bones from rubbing against one another. The cartilage is normally strong and elastic, with a smooth surface. There is also cartilage in the ear, nose and windpipe, for example. If cartilage is inflamed, it may become damaged as a result. The cartilage may then soften or degenerate.

With an inflammation in cartilage tissue, the affected sites may be painful. You may also no longer be able to move the affected joints properly. If the ear is affected, one may hear less well. If cartilage tissue in the trachea is affected, the trachea can become misshapen. You may then no longer be able to breathe properly.