ICD-10-CM 2027 diagnosis code
I77.8Other specified disorders of arteries and arterioles
I77.8 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About I77.8
I77.8 is the ICD-10-CM diagnosis code for other specified disorders of arteries and arterioles. It belongs to category I77 (other disorders of arteries and arterioles), block I70-I79 (diseases of arteries, arterioles and capillaries) and chapter 9 (diseases of the circulatory system). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
Within I77, choose I77.8 (Other specified disorders of arteries and arterioles) only when documentation doesn't support a more specific option: arteriovenous fistula, acquired (I77.0), stricture of artery (I77.1), rupture of artery (I77.2), arterial fibromuscular dysplasia (I77.3), celiac artery compression syndrome (I77.4), necrosis of artery (I77.5), arteritis, unspecified (I77.6), other arterial dissection (I77.7) and 1 more.
To report this condition, pick the subcode that matches the documentation: I77.81 (ectasia), I77.82 (vasculitis) and I77.89 (arterioles).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under I77.8
Notes that apply from higher levels
Instructions written at a parent level also apply to I77.8.
Broader instructions also apply from Chapter 9: Diseases of the circulatory system.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about I77.8
Is I77.8 billable?
- No. I77.8 is a header code. Report one of its more specific subcodes instead.