Alternating esotropia with V pattern

This code describes a form of strabismus where one eye turns inward (esotropia), and the deviation alternates between the left and right eyes. The "V pattern" indicates that the esotropia is greater in upgaze and less in downgaze, or even becomes exotropia in downgaze.

Assign this code when documentation clearly specifies alternating esotropia in conjunction with a V pattern. This typically occurs in patients with incomitant strabismus where the angle of deviation changes with vertical gaze. Supporting documentation would include ophthalmological examination findings detailing the alternating nature of the esotropia and the V-shaped vertical incomitance.

• Ensure the documentation explicitly states "alternating" esotropia and "V pattern" to support this specific code.
• Do not confuse with constant esotropia or other incomitant patterns (e.g., A pattern).
• Consider additional codes for any underlying causes or associated conditions, such as amblyopia or refractive errors.