ICD-10 Code H50.33 – Intermittent Monocular Exotropia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.33 – Intermittent monocular exotropia
What it is
Intermittent monocular exotropia is a type of strabismus in which one eye occasionally turns outward while the other eye remains aligned. The deviation is not constant and may be present only at certain times.
Clinical signs
Typical findings include an outward drift of the same eye that comes and goes, often noticed during fatigue, daydreaming, or distance viewing. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly documents intermittent outward deviation affecting one eye only. It fits ophthalmology or pediatric eye evaluations that identify monocular exotropia rather than alternating or constant misalignment. Check documentation if the laterality or pattern is unclear.
Do not use for
Do not use this code for constant exotropia, alternating exotropia, or nonspecific strabismus. Also avoid it when the chart does not specify that the deviation is intermittent and monocular.
Coding tip
Confirm both the intermittent nature and the single-eye involvement in the provider note before assigning H50.33.