ICD-10 Code H50.669 – Superior oblique muscle entrapment, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.669 – Superior oblique muscle entrapment, unspecified eye
What it is
Use this code for entrapment of the superior oblique muscle when the affected eye is not specified. It describes a mechanical restriction involving that extraocular muscle.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include limited eye movement, diplopia, or abnormal ocular alignment when the muscle is trapped.
When to use this code
Assign H50.669 when the provider documents superior oblique muscle entrapment and does not identify right or left eye. Use it for confirmed entrapment noted on exam, imaging, or operative report. If laterality is documented, code the specified eye instead.
Do not use for
Do not use this code for nonspecific strabismus, general eye muscle weakness, or orbital fractures without documented superior oblique entrapment. Check documentation if the diagnosis is only suspected.
Coding tip
Verify laterality carefully; unspecified-eye codes are appropriate only when the record truly lacks right-or-left detail.