Changes in retinal vascular appearance, bilateral

This code signifies observable alterations in the blood vessels of both retinas, such as narrowing, tortuosity, or changes in the light reflex. These changes are often indicative of underlying systemic conditions affecting the vasculature, like hypertension or diabetes, but are not yet specified as a particular retinopathy.

Apply this code when documentation specifies bilateral changes in the retinal vascular appearance without a more specific diagnosis of retinopathy. This is appropriate when an ophthalmologist notes these changes during an examination and attributes them to a systemic condition or as an isolated finding.

• Ensure the documentation explicitly states "bilateral" involvement; otherwise, use the appropriate unilateral code.
• Do not use this code if a more specific retinopathy (e.g., diabetic retinopathy, hypertensive retinopathy) is diagnosed; instead, code the specific retinopathy.
• Always sequence this code after the underlying systemic condition (e.g., essential hypertension, type 2 diabetes mellitus) if one is identified as the cause.