Raynaud's syndrome

This code represents Raynaud's phenomenon, a condition characterized by episodic vasospasm of the arteries and arterioles, most commonly affecting the fingers and toes. These episodes typically result in pallor, cyanosis, and rubor, often triggered by cold temperatures or emotional stress.

Use this code when documentation clearly indicates a diagnosis of Raynaud's syndrome, whether primary (idiopathic) or secondary to another underlying condition. Supporting documentation should describe the characteristic triphasic color changes or other symptoms consistent with vasospasm in the extremities.

• Differentiate between primary Raynaud's (syndrome) and secondary Raynaud's (phenomenon) due to an underlying disease; this code is for the syndrome itself.
• Do not use this code for acrocyanosis (306.9) or other peripheral vascular disorders unless Raynaud's is specifically diagnosed.
• Ensure the physician's documentation explicitly states "Raynaud's syndrome" or "Raynaud's disease" for accurate coding.