Chronic migraine w/o aura, intractable, w/o stat migr

This code signifies a persistent, severe headache disorder characterized by recurrent migraine attacks without an aura, which has become difficult to treat or manage effectively. The patient is not experiencing status migrainosus, meaning the migraine attack has not lasted for more than 72 hours.

Use this code for patients diagnosed with chronic migraine who do not experience pre-headache visual or sensory disturbances, and whose condition is refractory to standard treatments. Documentation should clearly state "chronic migraine," "without aura," and indicate that the condition is "intractable" or "refractory," without evidence of status migrainosus.

• Ensure documentation explicitly differentiates between "intractable" and "not intractable" migraines.
• Verify the absence of "aura" and "status migrainosus" to avoid miscoding.
• Consider sequencing with codes for associated symptoms or complications if applicable.