ICD-10 Code H49.32 – Total (external) ophthalmoplegia, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H49.32 – Total (external) ophthalmoplegia, left eye
What it is
This code identifies complete paralysis of the external eye muscles affecting the left eye. It means the eye cannot move normally because the muscles or their nerve supply are impaired.
Clinical signs
Typical findings include marked limitation or absence of left eye movement in multiple directions, often with diplopia or abnormal eye position. Clinical features vary; refer to documentation.
When to use this code
Use H49.32 when the record specifically documents total external ophthalmoplegia of the left eye. Apply it for confirmed unilateral involvement, not for vague eye movement problems or unspecified ophthalmoplegia. Check documentation if the note does not clearly identify the left eye.
Do not use for
Do not use this code for generalized ophthalmoplegia, bilateral disease, or isolated cranial nerve palsy unless the provider documents total external ophthalmoplegia. Do not guess laterality.
Coding tip
Verify that “total” and “left eye” are both documented before assigning H49.32.