ICD-10 Code H50.812 – Duane’s syndrome, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.812 – Duane’s syndrome, left eye
What it is
H50.812 identifies Duane’s syndrome affecting the left eye. It is a congenital eye movement disorder in which the eye has restricted horizontal movement, usually due to abnormal development of the eye muscles and their nerves.
Clinical signs
Typical findings include limited abduction or adduction of the left eye, globe retraction on attempted movement, and narrowing of the palpebral fissure. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record specifically documents Duane’s syndrome in the left eye. It is appropriate for ophthalmology, pediatric, or neurology assessments that name the laterality and diagnosis. Do not assume laterality from a general Duane syndrome note; check documentation.
Do not use for
Do not use H50.812 for unspecified Duane syndrome or for other strabismus disorders without documented Duane’s syndrome. If the chart does not confirm the left eye, check documentation.
Coding tip
Match the code to the documented eye and avoid laterality assumptions when the note is incomplete.