ICD-10 Code H50.61 – Brown’s sheath syndrome (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.61 – Brown’s sheath syndrome
What it is
Brown’s sheath syndrome is a rare ocular motility disorder involving limited elevation of the eye, especially when the eye is turned inward. Use this code when documentation names this specific syndrome.
Clinical signs
Typical findings include restricted upward movement in adduction and a mechanical pattern of eye movement limitation. Clinical features vary; refer to documentation.
When to use this code
Use H50.61 when the clinician documents Brown’s sheath syndrome, Brown syndrome, or an equivalent diagnosis affecting ocular motility. It is appropriate for confirmed congenital or acquired cases when the record identifies the condition specifically. Check documentation if the note only describes eye movement limitation without naming the syndrome.
Do not use for
Do not use this code for nonspecific strabismus, general vertical gaze limitation, or other eye movement disorders without documentation of Brown’s sheath syndrome. Do not assume the diagnosis from symptoms alone.
Coding tip
Code the documented syndrome name exactly and verify laterality or cause only if the record supports it.