ICD-10 Code H53.431 – Sector or arcuate defects, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H53.431 – Sector or arcuate defects, right eye
What it is
This code identifies a localized visual field defect in the right eye, typically shaped like a sector or arc. It describes the finding, not the underlying cause.
Clinical signs
Patients may report missing portions of vision, especially in a curved or wedge-shaped pattern. Clinical features vary; refer to documentation, visual field testing, and eye examination findings.
When to use this code
Use H53.431 when the record documents a sector or arcuate defect specifically affecting the right eye. It may be supported by perimetry, ophthalmology notes, or other documented visual field assessment. Code the documented finding when the provider names the defect and laterality clearly.
Do not use for
Do not use this code for unspecified visual loss, bilateral defects, or left-eye findings. If the note does not clearly state a sector or arcuate defect in the right eye, check documentation.
Coding tip
Verify laterality and the exact field defect wording before assigning the code.