ICD-10 Code H53.021 – Refractive amblyopia, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H53.021 – Refractive amblyopia, right eye
What it is
H53.021 identifies reduced vision in the right eye caused by uncorrected refractive error during visual development. The amblyopia is not due to structural eye disease.
Clinical signs
Typical findings include decreased best-corrected visual acuity in the right eye and a difference between the eyes. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents refractive amblyopia affecting the right eye, usually with anisometropia or significant uncorrected refractive error. It fits cases where the vision loss is attributed to abnormal visual development rather than a primary ocular lesion. Check documentation if the record only notes blurred vision or refractive error.
Do not use for
Do not use it for amblyopia in the left eye, bilateral amblyopia, or unspecified amblyopia. It is also wrong for reduced vision from cataract, retinal disease, or other non-refractive causes.
Coding tip
Confirm laterality and that the clinician specifically links amblyopia to refractive error before assigning H53.021.