L94: Other localized connective tissue disorders
L94.2: Calcinosis cutis
There is calcium in various places in the body. Calcium is firmly integrated into the bones. A small amount of calcium is also found in your blood in the form of small particles. Some conditions can cause calcium from the blood to be deposited in the skin. This can happen, among other things, if the affected areas of the skin have been previously damaged. There are also conditions where there is too much calcium or certain other substances in the blood. There may also be a buildup of calcium in the skin.
Calcium deposits can build up in the small blood vessels and they then get blocked up. This causes the areas of the skin supplied by the small blood vessels to die off. Hard areas may also form on the skin. The hard areas can be small bumps or fairly large plates and they can be painful. The skin over the hard areas can tear. A white, crumbly substance can then be seen.
The hard areas can be found on arms, legs and fingers and on the upper body and around the big joints, for example.
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