Alternating esotropia with other noncomitancies

This code describes a form of strabismus where one eye deviates inward (esotropia), and the deviation alternates between the eyes. It also indicates the presence of other noncomitant deviations, meaning the degree of misalignment varies depending on the direction of gaze. This condition affects binocular vision and can lead to amblyopia if not managed.

Use this code when documentation specifies alternating esotropia in conjunction with other noncomitant characteristics. This is typically diagnosed during an ophthalmological examination, noting the alternating nature of the inward turn and variability in deviation angles across different gaze positions. Supporting documentation should clearly state "alternating esotropia" and mention "noncomitant" or describe the variable nature of the deviation.

• Ensure documentation explicitly states "alternating esotropia" and "noncomitant" or provides details of variable deviation.
• Distinguish from H50.00 (unspecified esotropia) or codes for comitant esotropia (H50.01-H50.07) where the deviation is consistent in all gaze directions.
• Do not use if the esotropia is solely unilateral or if noncomitancy is not documented.