Sector or arcuate defects, right eye

This code describes a visual field defect characterized by a wedge-shaped or arc-like area of vision loss in the right eye. These defects typically respect the horizontal meridian and are often associated with damage to the retinal nerve fiber layer or optic nerve.

Use this code when documentation specifies a sector or arcuate visual field defect affecting the right eye. This often arises from conditions like glaucoma, ischemic optic neuropathy, or retinal vascular occlusions. Documentation should include the specific eye affected and the characteristic shape of the defect.

• Ensure the documentation clearly specifies the right eye; laterality is crucial for accurate coding.
• Distinguish from other visual field defects like scotomas (H53.41-) or generalized contraction (H53.48-).
• Always code the underlying cause of the visual field defect (e.g., glaucoma, optic neuropathy) first, followed by this code as a manifestation.