ICD-10-CM 2027 diagnosis code

I86Varicose veins of other sites

Not billable — use a more specific code

I86 is a header code, so it can't be reported by itself. Choose one of the 6 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 I86

I86 is the ICD-10-CM diagnosis code for varicose veins of other sites. It belongs to block I80-I89 (diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified) and chapter 9 (diseases of the circulatory system). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: I86.0 (varices), I86.1 (varices), I86.2 (varices), I86.3 (varices), I86.4 (varices) and I86.8 (sites).

Don't report I86 together with the conditions in its Excludes1 note: varicose veins of unspecified site (I83.9-).

The conditions in its Excludes2 note aren't part of I86, but may be coded alongside it if the patient has both: retinal varices (H35.0-).

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 I86

Coding notes

Excludes1Not coded here — never report together with this code

varicose veins of unspecified site (I83.9-)

Excludes2Not included here — may be reported together if both conditions exist

retinal varices (H35.0-)

Notes that apply from higher levels

Instructions written at a parent level also apply to I86.

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 I86

Is I86 billable?: No. I86 is a header code. Report one of its more specific subcodes instead.