ICD-10 Code H53.439 – Sector or arcuate defects, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H53.439 – Sector or arcuate defects, unspecified eye
What it is
H53.439 identifies a sector or arcuate visual field defect in an unspecified eye. Use it when the record documents this pattern of vision loss but does not specify the affected eye.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include a localized wedge-shaped or curved area of missing visual field on examination or perimetry.
When to use this code
Use this code when the provider documents a sector or arcuate defect and does not state right or left eye. It is appropriate for confirmed visual field loss described in ophthalmology notes or testing reports. Check documentation if the pattern is unclear or if another diagnosis explains the defect.
Do not use for
Do not use this code for generalized vision loss, nonspecific blurred vision, or visual field defects with a documented eye laterality. Check documentation if the finding is better described by another ICD-10 code.
Coding tip
Verify whether the note specifies right, left, or unspecified eye before assigning H53.439.