ICD-10-CM 2027 diagnosis code

H34.2Other retinal artery occlusions

Not billable — use a more specific code

H34.2 is a header code, so it can't be reported by itself. Choose one of the 2 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 H34.2

H34.2 is the ICD-10-CM diagnosis code for other retinal artery occlusions. It belongs to category H34 (retinal vascular occlusions), block H30-H36 (disorders of choroid and retina) and chapter 7 (diseases of the eye and adnexa). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within H34, choose H34.2 (Other retinal artery occlusions) only when documentation doesn't support a more specific option: transient retinal artery occlusion (H34.0), central retinal artery occlusion (H34.1), other retinal vascular occlusions (H34.8) and unspecified retinal vascular occlusion (H34.9).

To report this condition, pick the subcode that matches the documentation: H34.21 (occlusion) and H34.23 (occlusion).

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 H34.2

Notes that apply from higher levels

Instructions written at a parent level also apply to H34.2.

› From H34 Retinal vascular occlusions

Excludes1

amaurosis fugax (G45.3)

Broader instructions also apply from Chapter 7: Diseases of the eye and adnexa.

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 H34.2

Is H34.2 billable?: No. H34.2 is a header code. Report one of its more specific subcodes instead.