Chemodenervation

Chemodenervation with botulinum toxins and other chemical neurotoxins is covered for multiple neurologic, muscular, glandular, and sphincter disorders (e.g., blepharospasm, cervical dystonia, limb dystonia/spasticity, strabismus, achalasia, anal fissure, sialorrhea, severe primary hyperhidrosis, detrusor overactivity/OAB, and certain headache disorders). Headache prophylaxis coverage is limited to adults with chronic migraine meeting frequency/duration thresholds (≥15 days/month with ≥4 hours/day) and intractability criteria; onabotulinumtoxinA (BOTOX®) is the only product FDA‑approved for chronic migraine prophylaxis and potency units are not interchangeable between products.

"Chemodenervation of muscles innervated by the facial nerve for management of blepharospasm or hemifacial spasm."

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