ICD-10 Code H53.033 – Strabismic amblyopia, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H53.033 – Strabismic amblyopia, bilateral
What it is
Strabismic amblyopia, bilateral is reduced visual acuity in both eyes caused by misalignment of the eyes. The brain does not develop normal vision in either eye because it receives mismatched input.
Clinical signs
Clinical features include decreased vision in both eyes with a history or exam finding of strabismus. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly identifies bilateral amblyopia due to strabismus, not just strabismus alone. Apply it when the provider documents both the amblyopia and the bilateral nature of the condition. Check documentation if laterality is unclear.
Do not use for
Do not use for unilateral amblyopia, unspecified amblyopia, or strabismus without documented amblyopia. Check documentation when the cause of decreased vision is not stated.
Coding tip
Verify both the amblyopia diagnosis and bilateral laterality in the note before assigning H53.033.