ICD-10 Diagnosis Code I77.79

Dissection of other specified artery

Diagnosis Code I77.79

ICD-10: I77.79
Short Description: Dissection of other specified artery
Long Description: Dissection of other specified artery
This is the 2017 version of the ICD-10-CM diagnosis code I77.79

Code Classification
  • Diseases of the circulatory system
    • Diseases of arteries, arterioles and capillaries (I70-I79)
      • Other disorders of arteries and arterioles (I77)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code I77.79 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
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.

  • Cervicocerebral arterial dissection
  • Dissecting aneurysm of artery
  • Dissection of artery
  • Dissection of transplant artery

Replaced Code Additional informationCallout TooltipReplaced Code
The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2016. This codes was replaced for the FY 2017 (October 1, 2016-September 30, 2017).

This code was replaced in the 2017 ICD-10 code set with the code(s) listed below.
  • I77.70 - Dissection of unspecified artery
  • I77.75 - Dissection of other precerebral arteries
  • I77.76 - Dissection of artery of upper extremity
  • I77.77 - Dissection of artery of lower extremity

Information for Patients


An aneurysm is a bulge or "ballooning" in the wall of an artery. Arteries are blood vessels that carry oxygen-rich blood from the heart to other parts of the body. If an aneurysm grows large, it can burst and cause dangerous bleeding or even death.

Most aneurysms occur in the aorta, the main artery that runs from the heart through the chest and abdomen. Aneurysms also can happen in arteries in the brain, heart and other parts of the body. If an aneurysm in the brain bursts, it causes a stroke.

Aneurysms can develop and become large before causing any symptoms. Often doctors can stop aneurysms from bursting if they find and treat them early. They use imaging tests to find aneurysms. Often aneurysms are found by chance during tests done for other reasons. Medicines and surgery are the two main treatments for aneurysms.

NIH: National Heart, Lung, and Blood Institute

  • Aneurysm
  • Magnetic resonance angiography

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