ICD-10 Code H53.133 – Sudden visual loss, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H53.133 – Sudden visual loss, bilateral
What it is
H53.133 identifies a sudden loss of vision affecting both eyes. Use it when the record documents abrupt bilateral visual decline without a more specific underlying diagnosis.
Clinical signs
Typical findings include rapid decrease in visual acuity or near-complete loss of sight in both eyes. Clinical features vary; refer to documentation.
When to use this code
Use this code when the clinician documents sudden bilateral visual loss as the reason for evaluation or treatment. It may fit emergency, ophthalmic, or neurologic encounters when the exact cause is not yet established. Code the confirmed underlying disorder separately when documented.
Do not use for
Do not use it for chronic, gradual, or unilateral vision loss. If the note identifies a specific cause, such as retinal disease or optic nerve disorder, code that condition instead.
Coding tip
Check whether the provider documented laterality and an underlying diagnosis before assigning H53.133.