ICD-10 Code H33.40 – Traction detachment of retina, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H33.40 – Traction detachment of retina, unspecified eye
What it is
H33.40 identifies a traction detachment of the retina in which the affected eye is not specified. This means the retina has pulled away because of traction, but the record does not say right or left.
Clinical signs
Clinical features vary; refer to documentation. Typical records may note decreased vision, visual distortion, or retinal elevation on eye examination, but you should code only what is documented.
When to use this code
Use H33.40 when the provider documents traction detachment of the retina and does not identify the eye. This code fits ophthalmology notes, discharge summaries, or problem lists that clearly state the diagnosis without laterality. If the chart specifies right or left eye, use the more specific code instead.
Do not use for
Do not use this code for retinal detachment caused by a tear, exudation, or other non-traction mechanism. If the record names a specific eye, do not report the unspecified-eye code.
Coding tip
Check the note for laterality before assigning H33.40, because unspecified-eye coding is appropriate only when the documentation truly lacks that detail.