Vertical strabismus, right eye

This code describes a condition where the right eye is misaligned vertically, meaning it deviates either upward (hypertropia) or downward (hypotropia) relative to the left eye. This misalignment can be constant or intermittent and may lead to symptoms such as double vision or asthenopia.

Use this code when documentation clearly indicates a vertical deviation of the right eye. This diagnosis is typically made during an ophthalmological examination, often involving cover/uncover tests or prism measurements. The physician's notes should specify the affected eye and the vertical nature of the strabismus.

• Ensure the documentation specifies "right eye" for the vertical strabismus; otherwise, an unspecified or bilateral code may be more appropriate.
• Distinguish from horizontal strabismus (esotropia/exotropia) or torsional strabismus.
• Look for terms like "right hypertropia" or "right hypotropia" in the clinical notes to support this code.