ICD-10 Code H35.9 – Unspecified Retinal Disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H35.9 – Unspecified retinal disorder
What it is
H35.9 is used when the record shows a retinal disorder, but the specific retinal condition is not named. It signals an eye problem involving the retina without enough detail for a more exact code.
Clinical signs
Clinical features vary; refer to documentation. Common retinal complaints may include blurred vision, floaters, flashes, or decreased visual acuity, but you should code only what is documented.
When to use this code
Use H35.9 when the clinician documents a retinal disorder and does not identify a more specific diagnosis. It may also apply when the note confirms retinal disease but the chart lacks detail for laterality or subtype. Query if a more precise retinal code is supported.
Do not use for
Do not use this code when the documentation identifies a specific retinal condition such as detachment, vascular occlusion, or diabetic retinopathy. Check documentation before defaulting to an unspecified code.
Coding tip
Choose the most specific retinal code available; use H35.9 only when the provider’s documentation remains nonspecific.