ICD-10-CM 2027
ICD-10 code for eye embolism
From the official ICD-10-CM alphabetic index entry “Embolism (multiple) (paradoxical) › eye”. Page updated September 29, 2026.
About coding eye embolism
The ICD-10-CM code for eye embolism is H34.9 (Unspecified retinal vascular occlusion).
Within H34, choose H34.9 (Unspecified retinal vascular occlusion) only when documentation doesn't support a more specific option: transient retinal artery occlusion (H34.0), central retinal artery occlusion (H34.1), other retinal artery occlusions (H34.2) and other retinal vascular occlusions (H34.8).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 123 (Neurological Eye Disorders, relative weight 0.822), in MDC 02 (Diseases and Disorders of the Eye), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about eye embolism ICD-10 codes
What is the ICD-10 code for eye embolism?
- H34.9 — Unspecified retinal vascular occlusion.
Is H34.9 billable?
- Yes. H34.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H34.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H34.9 as a principal diagnosis.
Is H34.9 a CC or MCC?
- H34.9 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.