H34.833 Tributary (branch) retinal vein occlusion, bilateral

The ICD-10-CM code for Tributary (branch) retinal vein occlusion, bilateral is H34.833 (FY2026). It is non-billable as written — a 7th character is required for claim submission.

Classification

Chapter

7: Diseases of the eye and adnexa (H00-H59)

Section

H30-H36: Disorders of choroid and retina (H30-H36)

Category H34

39 codes (21 billable)

FY2026 Status

Stable since FY2024

U.S. Hospital Utilization

H34.833 appeared in too few sampled U.S. inpatient stays in 2016 to report a national estimate (AHRQ suppresses counts of 10 or fewer) — a rare inpatient diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Glaucoma (TOC entry)

a. Glaucoma .............................................................................................................................. 48

Assigning glaucoma codes (use as many H40 codes as needed)

Assign as many codes from category H40, Glaucoma, as needed to identify the type of glaucoma, the affected eye, and the glaucoma stage.

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)