ICD-10 Code H49.30 – Total (external) ophthalmoplegia, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H49.30 – Total (external) ophthalmoplegia, unspecified eye
What it is
H49.30 identifies complete paralysis of the external eye muscles in an unspecified eye. Use it when documentation states total ophthalmoplegia but does not specify the cause or laterality beyond unspecified eye.
Clinical signs
Typical findings include marked limitation or absence of eye movement in multiple directions, often with diplopia or abnormal eye alignment. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly documents total external ophthalmoplegia and the affected eye is not specified. It may also fit when the clinician describes complete extraocular muscle paralysis without naming a neurologic, traumatic, or other underlying cause. Check documentation if laterality or etiology is available.
Do not use for
Do not use it for partial ophthalmoplegia, isolated cranial nerve palsy, or nonspecific diplopia. If the cause is documented more specifically, code that condition instead.
Coding tip
Verify whether the note states total versus partial ophthalmoplegia and whether the eye is right, left, or unspecified.