ICD-10 Code H50.612 – Brown’s sheath syndrome, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.612 – Brown’s sheath syndrome, left eye
What it is
H50.612 identifies Brown’s sheath syndrome affecting the left eye. It refers to a restrictive eye movement disorder in which the eye has difficulty elevating in certain positions.
Clinical signs
Typical findings include limited elevation of the left eye, especially when the eye is adducted, and a characteristic mechanical restriction on exam. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents Brown’s sheath syndrome specifically in the left eye. Apply it for confirmed congenital or acquired cases when the diagnosis is stated in the record. Check documentation if laterality is unclear or only a general motility disorder is noted.
Do not use for
Do not use this code for nonspecific strabismus, diplopia alone, or other ocular motility disorders without Brown’s sheath syndrome documented. Do not assume laterality; code the eye that is explicitly reported.
Coding tip
Match the diagnosis to the documented eye and avoid coding from exam findings alone unless the provider names Brown’s sheath syndrome.