ICD-10 Code H53.432 – Sector or arcuate defects, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H53.432 – Sector or arcuate defects, left eye
What it is
This code identifies a sector or arcuate visual field defect in the left eye. It means part of the field of vision is missing in a curved or wedge-shaped pattern.
Clinical signs
Patients may report missing areas in peripheral vision or trouble noticing objects on one side. Visual field testing typically shows a localized arcuate or sector-shaped defect in the left eye.
When to use this code
Use this code when the provider documents a sector or arcuate defect affecting the left eye. It is appropriate when the diagnosis is based on visual field examination or clearly stated in the chart. Check documentation if the laterality or defect pattern is unclear.
Do not use for
Do not use this code for generalized visual loss, blindness, or unspecified field defects. Avoid it if the record describes the right eye or does not specifically identify a sector or arcuate pattern.
Coding tip
Assign H53.432 only when the left eye and defect type are both documented.