Esophoria

This code describes a type of heterophoria where there is a latent tendency for one or both eyes to turn inward (nasally) when fusion is disrupted. It is a misalignment that is typically controlled by the patient's fusional vergence system, meaning the eyes appear straight under normal binocular viewing conditions.

Assign this code when documentation clearly indicates a diagnosis of esophoria, often identified during an ophthalmic examination through cover/uncover testing or other dissociation techniques. This condition is distinct from a constant inward turn (esotropia).

• Differentiate from esotropia (H50.0-), which is a manifest deviation.
• Laterality is not specified for this code, as esophoria can be unilateral or bilateral.
• Ensure documentation specifies "esophoria" and not a related but distinct condition like accommodative esophoria (which may have an additional code).