ICD-10 Code H50.15 – Alternating Exotropia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.15 – Alternating exotropia
What it is
Alternating exotropia is an outward eye misalignment in which either eye may drift outward at different times. It is a form of strabismus where fixation alternates between the eyes.
Clinical signs
Typical findings include intermittent or constant outward deviation of one eye, with the affected eye alternating between right and left. Clinical features vary; refer to documentation.
When to use this code
Use H50.15 when the provider documents alternating exotropia, including alternating intermittent or constant outward deviation. Code it when the diagnosis is clearly established in the record, such as an eye exam or ophthalmology assessment. Check documentation if the note only says “strabismus” or “eye turn.”
Do not use for
Do not use this code for esotropia, hypertropia, or unspecified strabismus. If the chart does not confirm alternating exotropia, use the more specific documented diagnosis or check documentation.
Coding tip
Verify that the deviation alternates between eyes; that detail supports H50.15 and distinguishes it from unilateral exotropia.