Ophthalmoplegic migraine, not intractable

This code describes a rare type of migraine characterized by recurrent attacks of headache accompanied by paralysis of one or more eye muscles (ophthalmoplegia). The ophthalmoplegia typically resolves within days to weeks but can sometimes be permanent. This diagnosis specifically indicates that the condition is not intractable, meaning it responds to treatment or is not severe enough to be considered resistant to therapy.

Use this code for patients presenting with a history of migraine headaches associated with transient or persistent extraocular muscle palsies. Documentation should clearly state the presence of ophthalmoplegia and explicitly or implicitly indicate that the condition is not intractable. This code is appropriate when the patient is responding to current management or the severity does not warrant an intractable designation.

• Ensure documentation specifies ophthalmoplegia as a feature of the migraine, not a separate neurological deficit.
• Distinguish from G43.B1 (Ophthalmoplegic migraine, intractable) based on the patient's response to treatment and severity.
• Code any associated symptoms or underlying causes separately if documented and clinically significant.