ICD-10 Code H50.62 – Inferior oblique muscle entrapment (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.62 – Inferior oblique muscle entrapment
What it is
H50.62 identifies entrapment of the inferior oblique muscle, usually meaning the muscle is mechanically trapped or restricted. Use it when documentation specifically names this extraocular muscle involvement.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include restricted eye movement, diplopia, or abnormal ocular alignment, but you should code only when the record confirms inferior oblique entrapment.
When to use this code
Use H50.62 when the provider documents inferior oblique muscle entrapment as the diagnosis, such as after trauma or surgery involving the orbit. It is appropriate when the note clearly distinguishes this muscle from other extraocular muscles. Check documentation if the record only says “muscle entrapment” without naming the inferior oblique.
Do not use for
Do not use this code for general strabismus, nonspecific eye movement disorders, or entrapment of a different extraocular muscle. If the chart does not specify the inferior oblique, check documentation.
Coding tip
Code the named muscle only when the provider’s documentation is explicit; otherwise, query for clarification.