ICD-10 Diagnosis Code I73.01

Raynaud's syndrome with gangrene

Diagnosis Code I73.01

ICD-10: I73.01
Short Description: Raynaud's syndrome with gangrene
Long Description: Raynaud's syndrome with gangrene
This is the 2017 version of the ICD-10-CM diagnosis code I73.01

Code Classification
  • Diseases of the circulatory system
    • Diseases of arteries, arterioles and capillaries (I70-I79)
      • Other peripheral vascular diseases (I73)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code I73.01 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


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The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Gangrene due to peripheral vascular disease
  • Gangrene due to Raynaud disease
  • Gangrene due to secondary Raynaud phenomenon

Information for Patients


Gangrene is the death of tissues in your body. It happens when a part of your body loses its blood supply. Gangrene can happen on the surface of the body, such as on the skin, or inside the body, in muscles or organs. Causes include

  • Serious injuries
  • Problems with blood circulation, such as atherosclerosis and peripheral arterial disease
  • Diabetes

Skin symptoms may include a blue or black color, pain, numbness, and sores that produce a foul-smelling discharge. If the gangrene is internal, you may run a fever and feel unwell, and the area may be swollen and painful.

Gangrene is a serious condition. It needs immediate attention. Treatment includes surgery, antibiotics, and oxygen therapy. In severe cases an amputation may be necessary.

  • Gangrene
  • Gas gangrene

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Raynaud's Disease

Also called: Raynaud's phenomenon

Raynaud's disease is a rare disorder of the blood vessels, usually in the fingers and toes. It causes the blood vessels to narrow when you are cold or feeling stressed. When this happens, blood can't get to the surface of the skin and the affected areas turn white and blue. When the blood flow returns, the skin turns red and throbs or tingles. In severe cases, loss of blood flow can cause sores or tissue death.

Primary Raynaud's happens on its own. The cause is not known. There is also secondary Raynaud's, which is caused by injuries, other diseases, or certain medicines.

People in colder climates are more likely to develop Raynaud's. It is also more common in women, people with a family history, and those over age 30.

Treatment for Raynaud's may include drugs to keep the blood vessels open. There are also simple things you can do yourself, such as

  • Soaking hands in warm water at the first sign of an attack
  • Keeping your hands and feet warm in cold weather
  • Avoiding triggers, such as certain medicines and stress

NIH: National Heart, Lung, and Blood Institute

  • Raynaud phenomenon
  • What Is Raynaud's Phenomenon? - NIH (National Institute of Arthritis and Musculoskeletal and Skin Diseases)

[Read More]
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