2027 ICD-10-CM Diagnosis Code I79Disorders of arteries, arterioles and capillaries in diseases classified elsewhere

ICD-10-CM Codes›I00–I99›I70-I79›I79

ICD-10-CM I79
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

I79 is a non-billable ICD-10-CM category code for disorders of arteries, arterioles and capillaries in diseases classified elsewhere, so it cannot be submitted on claims. Use a more specific code from this category instead, such as I79.0, I79.1, and I79.8.

Code Identity

ICD-10-CM Code
I79
Billable Status
No — Non-Billable Category
Code Describes
Disorders of arteries, arterioles and capillaries in diseases classified elsewhere
Short Description
Disord of art, arterioles and capilare in dis classd elswhr
Chapter
I70-I79
Diseases of arteries, arterioles and capillaries

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI70-I79Diseases of arteries, arterioles and capillaries
CategoryI79Disorders of arteries, arterioles and capillaries in diseases classified elsewhere
This CodeI79Disorders of arteries, arterioles and capillaries in diseases classified elsewhere

Specific Coding for Disord of art, arterioles and capilare in dis classd elswhrOverview

Non-specific codes like I79 require more characters. Use one of these billable codes instead:

  • Use I79.0 for Aneurysm of aorta in diseases classified elsewhere

  • Use I79.1 for Aortitis in diseases classified elsewhere

  • Use I79.8 for Other disorders of arteries, arterioles and capillaries in diseases classified elsewhere

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to I79: its own notes plus those printed at Chapter 9. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 9 (I00-I99) Diseases of the circulatory system applies to 1,433 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Patient EducationClinical

Vascular Diseases

Your vascular system is your body's network of blood vessels. It includes your:

The full article covers:

  • What are vascular diseases?
  • What causes vascular diseases?
  • Who is at risk for vascular diseases?
  • What are the symptoms of vascular diseases?
  • How are vascular diseases diagnosed?
  • How are vascular diseases treated?
  • Can vascular diseases be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About I79Overview

Is I79 a billable code?

No. This is a category header that groups the codes for disorders of arteries, arterioles and capillaries in diseases classified elsewhere, and headers cannot be submitted on claims. Claims for disorders of arteries, arterioles and capillaries in diseases classified elsewhere need a more specific code from this category, such as I79.0, I79.1, and I79.8.