Raynaud's phenomenon

From Freepedia

Raynaud's phenomenon
ICD-10 code:	I73.0
ICD-9 code:	443.0

In medicine, Raynaud's phenomenon is discoloration of the fingers or toes due to emotion or cold in a characteristic pattern in time: white, blue and red. It is associated with a large number of diseases (mainly forms of vasculitis and hence belonging to rheumatology), but is idiopathic in most sufferers and is then called Raynaud's disease.

In pregnancy, this sign normally disappears due to increased surface blood flow.