Generalized contraction of visual field, bilateral

This code signifies a reduction in the overall extent of the visual field in both eyes. This means the patient experiences a constricted area of vision, often described as tunnel vision, affecting their peripheral sight bilaterally. It indicates a generalized, rather than localized, loss of visual field.

Use this code when documentation explicitly states a "generalized contraction of visual field" affecting both eyes. This diagnosis is typically supported by perimetry or visual field testing results demonstrating a concentric narrowing of the visual field bilaterally. It's appropriate for conditions causing a global reduction in the visual field rather than specific scotomas.

• Ensure documentation specifies "generalized" and "bilateral" visual field contraction; avoid using for unilateral or localized defects.
• Distinguish from other visual field defects like scotomas (H53.41-H53.46) or homonymous hemianopsia (H53.47-).
• Always review the visual field test results and ophthalmologist's interpretation to confirm the nature and laterality of the defect.