ICD-10 Code H33.20 – Serous Retinal Detachment, Unspecified Eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H33.20 – Serous retinal detachment, unspecified eye
What it is
This code identifies a serous retinal detachment in which fluid collects under the retina without a tear or break being specified. Use it when the record documents retinal detachment of this type but does not name the eye.
Clinical signs
Findings may include blurred vision, visual field loss, or distortion, depending on the extent of detachment. Clinical features vary; refer to documentation and ophthalmology findings.
When to use this code
Use H33.20 when the provider documents serous retinal detachment and does not specify right or left eye. It also fits when the note confirms exudative or serous detachment without a more specific underlying cause in the coded record. Check documentation if the eye is laterality-specific or another retinal disorder is named.
Do not use for
Do not use this code for rhegmatogenous retinal detachment, traction retinal detachment, or retinal detachment with a documented retinal tear. If the affected eye is specified, choose the laterality-specific code instead.
Coding tip
Confirm both laterality and detachment type in the ophthalmology note before assigning H33.20.