ICD-10 Code H35.052 – Retinal neovascularization, unspecified, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H35.052 – Retinal neovascularization, unspecified, left eye
What it is
Use this code for abnormal new blood vessel growth in the retina of the left eye when the cause is not further specified. It identifies a left-eye retinal neovascular process, not a broader retinal disorder.
Clinical signs
Findings may include visible retinal neovascularization on eye examination, often with associated retinal ischemia or hemorrhage. Clinical features vary; refer to documentation.
When to use this code
Use H35.052 when the provider documents retinal neovascularization in the left eye and does not name a more specific underlying condition. It is appropriate when the chart clearly identifies the left eye. If the record names a different retinal disease causing the neovascularization, code that documented condition as directed.
Do not use for
Do not use this code for neovascularization in the right eye or both eyes. Do not use it when the documentation specifies a different retinal diagnosis or a systemic cause without confirming left-eye retinal neovascularization.
Coding tip
Verify laterality and whether the note identifies a more specific retinal diagnosis before assigning H35.052.