ICD-10 Code H50.122 – Monocular exotropia with A pattern, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.122 – Monocular exotropia with A pattern, left eye
What it is
H50.122 identifies a left-eye exotropia, meaning the eye turns outward, with an A-pattern deviation. Use this code when the pattern and laterality are documented.
Clinical signs
Typical findings include outward misalignment of the left eye that changes with gaze direction in an A pattern. Clinical features vary; refer to documentation.
When to use this code
Use H50.122 when the clinician documents monocular exotropia limited to the left eye and specifies an A pattern. It is appropriate for ophthalmology or optometry notes that clearly identify the deviation pattern. Check documentation if the record does not confirm laterality or pattern.
Do not use for
Do not use this code for unspecified exotropia, alternating exotropia, or a different eye. If the A-pattern is not documented, check documentation before assigning H50.122.
Coding tip
Code only when both left-eye laterality and A-pattern exotropia are explicitly stated in the record.