Intermittent alternating exotropia

This code describes a form of strabismus where one eye deviates outward (exotropia), and the deviation alternates between the left and right eyes. This intermittent nature means the exotropia is not constant but occurs periodically, often when the patient is tired or focusing on distant objects.

Use this code when documentation clearly indicates an exotropia that is not constant and alternates between the eyes. This diagnosis is typically made during an ophthalmological examination, often involving cover/uncover tests or prism measurements. Supporting documentation should specify the intermittent and alternating nature of the exotropia.

• Differentiate from constant alternating exotropia (H50.33-) or intermittent unilateral exotropia (H50.32-).
• Ensure the documentation specifies "alternating" and "intermittent" to support this specific code.
• Consider laterality if the documentation indicates a predominant eye, though this code implies alternation.